Kevin Schneider

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Rachel came ashore in far northwestern Mexico, but the moisture, wind, and coastal hazards are still going to impact areas in the next few days. Heavy rain has already prompted flash flooding, with elevated winds reportedly leading to some damaged trees. <h1>Track &amp; Wind Potential</h1>Hurricane Hilary made headlines in 2023 as it nearly made landfall in California as a hurricane, with heavy rain impacting the deserts and mountains. This system won't have the same wind energy, but could still bring strong and gusty winds to the region that could cause damage, especially in mountainous terrain. The center of Rachel has stayed south of San Diego; however, some elevated winds have been felt already. <img src="https://media.weathernationtv.com/app/uploads/2026/10/Screenshot 2026-10-11 040219-1791712953065.png">Desert areas can expect gusts to 35-45 mph on Sunday. The fast forward movement could bring those strong gusts north in Utah or even parts of Wyoming and Idaho. Widespread power outages are not anticipated but a few isolated outages are possible.<img src="https://media.weathernationtv.com/app/uploads/2026/10/Screenshot 2026-10-10 091007-1791645365648.png"><h1>Rain &amp; Flood Forecast</h1>Flooding will likely be the biggest impact from Rachel in the West, and even heavy snow! As moisture is pulled into the west, a cold trough from Canada will help usher the moisture north, sending it through Montana where temperatures will be dropping quickly.<img src="https://media.weathernationtv.com/app/uploads/2026/10/Screenshot 2026-10-10 091618-1791645386493.png">Numerous and significant flash floods are possible for areas like Joshua Tree, Las Vegas, St. George, and Cedar City.<img src="https://media.weathernationtv.com/app/uploads/2026/10/Screenshot 2026-10-11 040415-1791713071248.png">Moisture begins spreading into the region late Saturday, but the bulk of the impacts are being felt Sunday and Monday as heavy rain and the remnant core of the storm quickly move north. Flooding rain could close roads and impact travel in desert and mountain regions - stay vigilant and limit travel if possible!<video src="https://media.weathernationtv.com/app/uploads/2026/10/BARON 5-1791683127851.mp4" controls="true" width="100%"></video>Severe storms are possible, in addition to the flooding impacts. A few damaging wind gusts and tornadoes are possible for areas below.<img src="https://media.weathernationtv.com/app/uploads/2026/10/Screenshot 2026-10-11 040532-1791713146779.png">

Rob Bradley

Rachel Spreading Moisture into the Southwest

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WeatherNation Meteorologists

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Hurricane Isaias made landfall near Destin, FL, around 8:30 pm CT as a Category 2 hurricane. Maximum sustained winds were reported at 105 mph with a minimum central pressure of 971 mb.On Wednesday evening, Isaias became the first hurricane of the 2026 Atlantic season. This breaks the decades-old record of the latest to form in the modern, satellite era.The storm got off to a slow start, but quickly strengthened Friday, becoming a Category 3 storm with winds of 120 mph. Although it weakened slightly as it came ashore, there are widespread reports of wind damage and power outages along the coast. Isaias is now a post-tropical cyclone as it continues moving northward into the Mid-South.<div class="twitter-tweet" style="display: flex; justify-content: center" data-twitt-post-id="2108724199535919547" src="https://x.com/WeatherNation/status/2108724199535919547"></div>As of Sunday morning, there are still over 300k customers without power in Florida, including the majority of Santa Rosa County. <h1>Lingering Flood &amp; Severe Weather Threats</h1>Flash flooding and severe storms will accompany strong wind gusts as the remnants of Isaias move north. Flash flood watches are in effect from North Carolina to Virginia, with the Weather Prediction Center highlighting a SLIGHT risk of excessive rainfall in these parts as well.<img src="https://media.weathernationtv.com/app/uploads/2026/10/Screenshot 2026-10-11 034741-1791712124607.png">Sunday's severe weather risks will include strong downdraft winds, in addition to a few tornadoes. The area of greatest concern is again in the Mid-Atlantic<img src="https://media.weathernationtv.com/app/uploads/2026/10/Screenshot 2026-10-11 034951-1791712205412.png">Heavy rain will continue to lift north and east throughout Saturday, bringing several rounds of heavy rain to areas east of the circulation, especially in the Carolinas.<video src="https://media.weathernationtv.com/app/uploads/2026/10/BARON 5-1791682920636.mp4" controls="true" width="100%"></video>Stay tuned to the forecast here on WeatherNation. We'll bring you the details you need, and cut out all the hype.

Isaias Makes Landfall as A Category 2, Impacts Spreading North

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The Twin Cities saw an afternoon high soar to 90 on Saturday - something out of the ordinary for them. The hottest temperature ever recorded in the month of October here is 92. We may threaten that again to close out the weekend. <img src="https://media.weathernationtv.com/app/uploads/2026/10/Screenshot 2026-10-11 072124-1791724977328.png">A ridge will re-establish and start to take over the weather story in the midsection of the country over the next few days. While it won't bring the triple-digits back necessarily, the 90's are more than enough to set records. <img src="https://media.weathernationtv.com/app/uploads/2026/10/Screenshot 2026-10-11 073123-1791725498664.png">For folks in the upper midwest, there is light at the end of the tunnel. A front dropping through will break the heat - but farther south will take a little longer. The southern plains and southeast will get back to and stay in another round of August-like heat. <img src="https://media.weathernationtv.com/app/uploads/2026/10/Screenshot 2026-10-11 073157-1791725551502.png"><img src="https://media.weathernationtv.com/app/uploads/2026/10/Screenshot 2026-10-11 073210-1791725557886.png">

Hot Weather Baking the Heartland This Week

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A strong upper-level trough digging south from the Gulf of Alaska will bring some noticeable changes to the weather pattern. Wind, snow, and fire weather are possible, and this pattern will last into early next week.<h2>UPPER-LEVEL TROUGH</h2><h2><img src="https://media.weathernationtv.com/app/uploads/2026/10/pic4-1791651989874.png">WINTER ALERTS</h2><img src="https://media.weathernationtv.com/app/uploads/2026/10/pic3-1791652288574.png">Winter storm warnings and winter weather advisories are in effect for the rest of the weekend. The parts of Montana under the Warning could experience over 1 foot of snow accumulation. This will create very dangerous travel conditions. This includes extremely low visibility and fast accumulations that could deteriorate road conditions. Some areas have already picked up more than 6 inches of snow!<img src="https://media.weathernationtv.com/app/uploads/2026/10/Screenshot 2026-10-11 035329-1791712427646.png"><h2>FORECAST SNOWFALL</h2><img src="https://media.weathernationtv.com/app/uploads/2026/10/Screenshot 2026-10-11 035459-1791712512564.png">Our in-house model is showing significant snowfall through Monday. Forecast models can overpredict snowfall in the Fall months, so this is not a given, but with it being the first big snow in these areas, impacts will be felt. These numbers are in addition to what has already falling.

Digging Trough Brings Wind and Snow to the Northern Rockies This Weekend

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Rob grew up in South Florida, where daily afternoon storms and hurricanes piqued his interest in meteorology early on. That interest was fostered by his teachers and his father, who one time brought him onto the roof of their home to watch a funnel cloud move through the Everglades several miles away. Years of filmmaking and tv production in high school gradually pushed him toward broadcast meteorology at Florida State University, where he joined and eventually led the student run daily weather show. After graduating with a Bachelors of Science in Meteorology, he began his career at KESQ in Palm Springs, California before heading to KFSN in Fresno and WLOS in Asheville, North Carolina. He has covered a diverse array of extreme weather events, including haboobs and flash flooding in the desert, extreme snow in the Sierra, hurricanes, and Appalachian ice storms. He also enjoys telling stories and reporting about weather issues.

Connect with Rob on <a href="https://twitter.com/WxRobBradley">Twitter</a>

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Isaias ended the late season streak of no hurricanes in the Atlantic, but how will the rest of the season shape up? Record breaking wind shear is likely to continue to limit most tropical systems in the Atlantic, but a few more storms are still possible. The National Hurricane Center is monitoring a low pressure system near the Cabo Verde Islands, giving it a low chance to develop as it moves NNW. This system is not a threat to the United States.<img src="https://media.weathernationtv.com/app/uploads/2026/10/Screenshot 2026-10-11 042241-1791714411718.png"><h1>Pacific Basin</h1>The Pacific Ocean has been incredibly active so far this hurricane season and looks to continue to create additional activity through the next week. Several systems could bring impacts to the United States. <img src="https://media.weathernationtv.com/app/uploads/2026/10/Screenshot 2026-10-11 043428-1791714875528.png"><h2>Rachel </h2>Rachel is now post-tropical and is moving through the Southwestern United States producing flooding, storms, and gusty winds - <a target="_blank" rel="noopener noreferrer nofollow" href="https://www.weathernationtv.com/news/california-in-the-cone-rachel-heads-toward-the-southwest">click here to read a more detailed forecast.</a><img src="https://media.weathernationtv.com/app/uploads/2026/10/Screenshot 2026-10-11 043017-1791714626646.png">We also have Hurricane Simon which formed Wednesday afternoon off the coast of Acapulco. Simon is an impressive hurricane, very close to a category 5, and will be riding up the coast through Colima and Jalisco, bringing major impacts to those Mexican states.<img src="https://media.weathernationtv.com/app/uploads/2026/10/Screenshot 2026-10-11 043121-1791714705711.png">Simon is expected to weaken considerably after moving over the state of Jalisco, before making another landfall as a tropical storm near Mazatlan on Tuesday, in the state of Sinaloa. <img src="https://media.weathernationtv.com/app/uploads/2026/10/Screenshot 2026-10-11 043137-1791714779428.png"><h1>El Niño Fueling Pacific Activity</h1><img src="https://media.weathernationtv.com/app/uploads/2026/10/Screenshot 2026-10-08 104818-1791478116096.png">The surge in tropical activity comes as El Niño continues to strengthen across the equatorial Pacific. El Niño is characterized by warmer-than-average ocean temperatures across portions of the central and eastern equatorial Pacific. Those unusually warm waters can influence weather patterns around the globe while also creating an environment that can favor tropical cyclone activity in the Pacific.<img src="https://media.weathernationtv.com/app/uploads/2026/09/Screenshot 2026-09-28 194202-1790646127358.png">This year’s El Niño has already strengthened considerably, and forecasts indicate it could become exceptionally strong later this year.<img src="https://media.weathernationtv.com/app/uploads/2026/09/Screenshot 2026-09-12 063433-1789216512410.png">

Tropics: Another Blob in the Atlantic, Pacific Stays Hyperactive

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Deep tropical moisture streaming north from the Gulf is combining with a slow-moving front, setting the stage for widespread showers and thunderstorms along the Gulf Coast. Apalachicola, Florida, saw 7.49 inches of rain on Monday; this was the wettest October day on record! More heavy rainfall and flash flooding are possible Thursday into Friday, along with an isolated tornado or two. <div class="twitter-tweet" style="display: flex; justify-content: center" data-twitt-post-id="2107561532381090282" src="https://x.com/WeatherNation/status/2107561532381090282"></div>A stalled front is taking the moisture from Isaias and pulling it across Central and Northern Florida. For more info on Isaias and its impacts, <a target="_blank" rel="noopener noreferrer nofollow" href="https://www.weathernationtv.com/news/Gulf-Braces-For-Tropical-Impact">read here</a>.<video src="https://media.weathernationtv.com/app/uploads/2026/10/2026-10-08 09-10-32-1791472273083.mp4" controls="true" width="100%"></video>Some localized totals of 5-6 inches of rain will be possible. Watch out for localized flash flooding and ponding on the roads in the usual spots.<img src="https://media.weathernationtv.com/app/uploads/2026/10/Screenshot 2026-10-08 085923-1791472325822.png">In addition to heavy rain, extra rotational energy from Isaias could spawn a few tornadoes on Thursday. Stay tuned to WeatherNation TV for additional details and live coverage.

Flooding, Tornadoes Target Central Florida Thursday

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Brittany Lockley

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A major temperature divide is unfolding across the United States as millions experience a true taste of fall while parts of the West continue to deal with summer-like heat.&nbsp;A surge of cooler air has spread across much of the central and eastern United States, sending temperatures tumbling and bringing some of the chilliest conditions of the season so far. Meanwhile, unusually hot weather continues across portions of the West Coast, where temperatures are running well above what is typical for early October.&nbsp;Summer Hangs On in the West&nbsp;While jackets are coming out farther east, residents across portions of the West are still dealing with significant heat.&nbsp;Temperatures across parts of California and the interior West are running roughly 10 to 15 degrees above average in some locations. Triple-digit temperatures have even been recorded in portions of Southern California despite the calendar moving deeper into October.&nbsp;Los Angeles experienced consecutive October days with temperatures reaching at least 100 degrees, highlighting the intensity of the unusual fall heat.&nbsp;The persistent warmth stretches beyond Southern California, with above-average temperatures extending through portions of the Great Basin and toward the northern Rockies.&nbsp;Over the next 3 days, many cities will be near, tie, or break the current records.<img src="https://media.weathernationtv.com/app/uploads/2026/10/Screenshot 2026-10-07 035357-1791366853404.png">Heat alerts remain in place through Friday. Los Angeles is under an extreme heat warning, meaning use caution if working outdoors and make sure to drink plenty of water.<img src="https://media.weathernationtv.com/app/uploads/2026/10/Screenshot 2026-10-07 035446-1791366898851.png">Check out temperatures in Los Angeles: the average high is normally 80°, but temperatures will flirt again with the century mark even in the next few days. Temperatures will remain in the upper 90s for Las Vegas, and Phoenix will dig into the 100s.<img src="https://media.weathernationtv.com/app/uploads/2026/10/Screenshot 2026-10-07 035550-1791366965841.png">The Northwest will also be threatening record-high temperatures. High temperatures will stay hot in most of the cities in the Northwest. These highs will be anywhere from 10-15° above average.<img src="https://media.weathernationtv.com/app/uploads/2026/10/Screenshot 2026-10-07 035630-1791367010235.png">Meanwhile, in the Northeast, Fall Air Settles In&nbsp;A strong cold front has helped usher cooler, drier air into a large portion of the country. Behind the front, daytime temperatures are struggling to climb out of the 50s and 60s in some areas.&nbsp;The cooler air is especially noticeable during the overnight and early morning hours. Temperatures are dropping into the 30s and 40s across parts of the northern tier, Great Lakes and Northeast, creating the potential for frost in some of the coldest locations.&nbsp;For areas that have enjoyed a relatively warm start to fall, the change may feel especially dramatic.&nbsp;The arrival of the cooler air is also pushing temperatures below seasonal averages across portions of the central and eastern U.S., signaling a more traditional October weather pattern.&nbsp;<img src="https://media.weathernationtv.com/app/uploads/2026/10/Screenshot 2026-10-07 040003-1791367220514.png">A Coast-to-Coast Temperature Contrast&nbsp;The dramatically different conditions are creating a weather map that looks more like two different seasons.&nbsp;Much of the East is experiencing crisp mornings, cooler afternoons, and increasing frost potential, while parts of the West remain firmly locked in a pattern more typical of late summer.&nbsp;<img src="https://media.weathernationtv.com/app/uploads/2026/10/Screenshot 2026-10-07 040204-1791367341750.png">Eventually, the western heat is expected to ease as the weather pattern shifts. Until then, millions of Americans will continue experiencing very different versions of October depending on which side of the country they call home.Tune in to WeatherNation for the latest on this forecast and records that break throughout the days to come.

Fall Chill Grips the East While Record Heat Bakes the West

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A noticeable change in the weather is on the way for millions across the Great Lakes and Northeast as some of the coldest air since spring moves into the region.&nbsp;After an unusually warm start to October, a push of Canadian air will send temperatures tumbling over the next several days. The transition could eventually bring the season’s first widespread frost and freeze to portions of the northern United States.&nbsp;<img src="https://media.weathernationtv.com/app/uploads/2026/10/Screenshot 2026-10-03 073235-1791034366761.png">Check out how cold the temperatures will be for the Northeast early next week. This cold air could kill temperature sensitive vegetation.<img src="https://media.weathernationtv.com/app/uploads/2026/10/Screenshot 2026-10-05 063050-1791203461967.jpg">The cooldown marks a dramatic change following the recent stretch of unseasonably warm weather across the eastern United States.&nbsp;October is typically when the first freeze becomes increasingly common across the Midwest and Northeast, although the exact timing varies considerably depending on elevation and location.&nbsp;<img src="https://media.weathernationtv.com/app/uploads/2026/10/Screenshot 2026-10-03 073713-1791034643040.png">For many across the Great Lakes and Northeast, the upcoming cold snap could provide the clearest sign yet that the warm days of early fall are beginning to fade.&nbsp;Stay Tuned for more details in the Eastern Regional forecast on WeatherNation TV :10 past the hour.

Fall Temperatures for the Northeast

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Heavy rain continues across parts of Central and South Texas for the rest of the weekend. Moisture continues to pile up along the Gulf Coast from an area of low pressure in the Gulf. Luckily, a cold front is heading south to try to dry things out heading into next week. The best chances of rain and storms will be along the immediate coast.<video src="https://media.weathernationtv.com/app/uploads/2026/10/2026-10-04 04-11-01-1791108693923.mp4" controls="true" width="100%"></video>Through Tuesday, Deep South Texas can see rainfall amounts between 3-6" of rain closer to the coast.<img src="https://media.weathernationtv.com/app/uploads/2026/10/Screenshot 2026-10-04 041145-1791108721890.png">Right on queue, another MODERATE (level 3 out of 4) risk for flash flooding has been issued in Texas again. This time, well to the south, where the heaviest of the rainfall is expected.<img src="https://media.weathernationtv.com/app/uploads/2026/10/Screenshot 2026-10-04 041315-1791108808781.png">Just like for the Southeast, Texas and the rest of the Southern Plains looks very soggy for the long term in the next 7-10 days.<img src="https://media.weathernationtv.com/app/uploads/2026/10/Screenshot 2026-10-04 041343-1791108842343.png">For more on this forecast, tune in :30 past the hour for your full Central Regional.

Stalled Front Heightens Flood Risk Today

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Tracey Anthony

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<h2></h2><div class="twitter-tweet" style="display: flex; justify-content: center" data-twitt-post-id="2105658995948281901" src="https://x.com/WeatherNation/status/2105658995948281901"></div><h2>WHAT TO EXPECT</h2>Tropical moisture from the remnants of Polo and the Gulf have surged north and met a frontal boundary. This has equaled a formula of very heavy rainfall. Flood alerts are in place through Thursday across portions of the plains and Midwest. The soils for this part of the country are already very saturated for many. This means adding more rainfall can lead to flooding of rivers, creeks, and streams, and flash flooding is not out of the question.<img src="https://media.weathernationtv.com/app/uploads/2026/10/PIC 4-1790897782083.png"><h2>TIMING</h2>Rounds of heavy rain will continue on and off. Isolated areas of flooding will be possible. Friday, this low will move east, and we will see drier conditions by the end of the week.<video src="https://media.weathernationtv.com/app/uploads/2026/10/FORECAST-1790897919777.mp4" controls="true" width="100%"></video><h2>TOTALS</h2>Folks can expect very heavy rainfall, with most seeing around 2"- 4". Some localized areas of a half foot will be possible! Never try to drive through floodwaters, and make sure to take any flood alerts and warnings seriously. If you live in an area prone to flooding, make sure to have an action plan in place if flooding develops! <img src="https://media.weathernationtv.com/app/uploads/2026/10/PIC 5-1790897796211.png"> Make sure to tune into WeatherNation for the latest forecast!

Patrick Crawford

Plains & Midwest: Slow Moving Storms Increase Flood Threat

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Taban Sharifi grew up in Southern California between Los Angeles and San Diego. She is a Certified Broadcast Meteorologist (CBM) with the American Meteorological Society (AMS). She has a B.S. in Atmospheric, Oceanic, and Environmental Sciences with a minor in Environmental Systems and Society from the University of California, Los Angeles (UCLA). Go Bruins! While in school, Taban was a meteorology intern with NBC LA. There she helped forecast daily weather for the greater Los Angeles region and created a playbook to deploy weather sensors for NBC owned-and-operated stations across the country. Her first on-air job took her to San Angelo, Texas, where she was a morning meteorologist and co-anchor. Working in West Texas gave her knowledge and experience covering severe storms. From there, she moved to Palm Springs, California. People think forecasting in California is sunshine all the time, but with temperatures in the 120’s, wildfires, damaging winds, floodings, and earthquakes, the forecasting kept her very busy! She also worked there as a general assignment reporter and told community stories. Taban is excited for the challenge and opportunity to forecast nationally with WeatherNation. She also looks forward to exploring all that Colorado has to offer!

Taban Sharifi

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In the last month, the southwestern states of New Mexico and Arizona have seen their fair share of monsoon showers and storms.<div class="twitter-tweet" style="display: flex; justify-content: center" data-twitt-post-id="2103622200872079365" src="https://x.com/WeatherNation/status/2103622200872079365"></div>This week, tropical moisture is pushing across the Southwest and plains. This tropical moisture, from Hurricane Polo, will bring the potential for significant flooding across the region.<img src="https://media.weathernationtv.com/app/uploads/2026/09/poloooo-1790728785495.png">The flooding has already been seen across the Southwest, including Nevada.<div class="twitter-tweet" style="display: flex; justify-content: center" data-twitt-post-id="2104753032432910655" src="https://x.com/WeatherNation/status/2104753032432910655"></div>A major push of this moisture will continue to move through.. Several more inches on top of what has already come down are expected. This can quickly lead to flash flooding and debris flows, especially over burn scars. The heaviest of the activity, now expected in Colorado and the Central Plains.<img src="https://media.weathernationtv.com/app/uploads/2026/09/Screenshot 2026-09-30 054240-1790768613194.png">The Weather Prediction Center (WPC) has a moderate (level 3 out of 4) flooding threat in place for portions of Colorado and New Mexico. The flooding threat will taper off by late-week.<img src="https://media.weathernationtv.com/app/uploads/2026/09/overnighssss-1790820790763.png">Make sure to tune into Weathernation for the latest updates on the forecast.

Jackie Brown

Another Round of Flooding Possible for the Southwest

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Hurricane Nolo spared the Hawaiian Islands from another direct impact this season, instead stalling about 150 miles south of the Big Island before heading west. Heavy rain and wind still impacted the islands, and will continue through the middle of the week as Nolo swings past Kauai. Field correspondent Jonathan Petramala was on the Big Island to bring us those impacts over the weekend.<video src="https://media.weathernationtv.com/app/uploads/2026/09/LL_TRT 1.14_JP GIVES UPDATE ON NOLO_MS_E092626-1790520644996.mp4" controls="true" width="100%"></video><h1>Forecast / Impacts</h1>Nolo's impacts, including flooding, are not done with yet for the Hawaiian Islands. As Nolo heads north through the midweek, heavy rain on it's eastern side will hit the western Hawaiian Islands. 3-5 inches of rain could fall on Kauai, bringing flooding to the region. Kauai sustained a lot of damage just a few weeks back as Hurricane Lowell passed the island barely to the west.<img src="https://media.weathernationtv.com/app/uploads/2026/09/Screenshot 2026-09-28 074803-1790603893032.png">Nolo looks to stall for a day as it then slowly heads farther west, keeping some rain and wind impacts around through at least Thursday. <img src="https://media.weathernationtv.com/app/uploads/2026/09/Screenshot 2026-09-28 074651-1790603234688.png"><video src="https://media.weathernationtv.com/app/uploads/2026/09/forecassssssss-1790557751613.mp4" controls="true" width="100%"></video><h2>Wind / Waves</h2>As Nolo tracks west, wave heights will still be on the high side, bringing hazards to boaters and beach goers. Southward-facing beaches can see increased swell and surf over the next few days.<img src="https://media.weathernationtv.com/app/uploads/2026/09/Screenshot 2026-09-28 075119-1790603514846.png">Stay with us on WeatherNation for the latest updates.

Nolo Moving West; Flooding Still Possible on Kauai

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A Nor'easter...in September? While most people think of winter when it comes to these intense coastal storms, they can happen in the fall. The impacts will only be a little different, mainly with heavy rain instead of snow, but coastal flooding, huge surf, and strong winds will continue to create significant hazards.<div class="twitter-tweet" style="display: flex; justify-content: center" data-twitt-post-id="2104308771745083644" src="https://x.com/WeatherNation/status/2104308771745083644"></div>Winds across the northeast have reached over 60 mph in some areas.<img src="https://media.weathernationtv.com/app/uploads/2026/09/Screenshot 2026-09-27 145019-1790542232428.png">Some of the greatest concerns were along the Mid-Atlantic coastline, where repeated high-tide cycles sent water into neighborhoods and businesses and washed out roadways. Communities that frequently experience tidal flooding like Bethany Beach saw conditions worsen as the storm churned offshore.&nbsp;<div class="twitter-tweet" style="display: flex; justify-content: center" data-twitt-post-id="2103462018682703967" src="https://x.com/WeatherNation/status/2103462018682703967"></div>The impacts of this nor'easter will be winding down today, but Coastal Flood Warnings and Advisories do remain in effect through the day, some through early Tuesday.<img src="https://media.weathernationtv.com/app/uploads/2026/09/through tuesdayyy-1790619954527.png">The immediate coastal flooding was quickly made worse as heavy rain dumped along the Northeast coast by the weekend.<img src="https://media.weathernationtv.com/app/uploads/2026/09/WEB 1-1790601969107.png"><img src="https://media.weathernationtv.com/app/uploads/2026/09/forecassss-1790620092951.png"> As the low weakens and stalls, the rain should break up and become less heavy through today. Lingering gusty winds, light rain, and strong surf are expected to last into early Tuesday as the low moves out of New England.<video src="https://media.weathernationtv.com/app/uploads/2026/09/noreassss-1790620031568.mp4" controls="true" width="100%"></video>Conditions should gradually improve as the storm weakens and moves away from the coast Monday, and more so Tuesday. However, dangerous surf and lingering coastal flooding could remain concerns even after the heaviest rainfall and strongest winds subside.&nbsp;Residents and travelers along the East Coast are encouraged to monitor local weather alerts, avoid flooded roadways, and use caution near beaches and other coastal areas as the storm continues to impact the region.&nbsp; Tune into WeatherNation TV for the latest.

Powerful Nor’easter Slams East Coast over the Weekend

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The effects of El Niño are being felt along the West Coast. Everything from unusual marine life, warmer ocean temperatures and storms that can accelerate coastal erosion. The Governor of California, Gavin Newsom, has declared a state of emergency for the potential of this historic El Nino season. <div class="twitter-tweet" style="display: flex; justify-content: center" data-twitt-post-id="2102087880307011690" src="https://x.com/CAgovernor/status/2102087880307011690"></div>There's another piece of the El Niño puzzle scientists are watching closely, a Kelvin wave moving through the Pacific. These waves can change sea levels and ocean conditions along the coast. Meteorologist Taban Sharifi spoke with Dr. Michael Jacox, a research oceanographer with NOAA, to better understand what these waves are and what they could mean for the West Coast during this El Nino. <div data-youtube-video=""><iframe width="640" height="480" allowfullscreen="false" src="https://www.youtube.com/embed/B6COLBbZxgE" start="0"></iframe></div><h3 style="text-align: start">What is a Kelvin wave?</h3>These waves are very different from the waves we think about crashing on the beach. These waves originate off the equator.<img src="https://media.weathernationtv.com/app/uploads/2026/09/Screenshot 2026-09-22 161553-1790115735795.png">“They are very long and they travel huge distances,” said Jacox. These waves are important in the formation of El Niño. Jacox said, “The movement of these waves helps to transmit heat from west to east.”Jacox said, “These waves themselves, it’s not like a tsunami or something that you’re going to see this big wave come in and wash over your balcony. When they come through, they can raise sea level by 6 to 12 inches. So then when you have really high tides, you have storm surge, you have these other effects, they’re happening on top of this extra 6 to 12 inches of sea level. This is sort of one ingredient in the recipe that amplifies the risk from those other factors.”The biggest impacts will come around high tides and ongoing storms, increasing the risk of sea level rise and flooding. This current Kelvin wave is expected to be near San Diego in early to mid-October. You won’t be able to see it with the naked eye, but it will be detectable through ocean measurements.<div class="twitter-tweet" style="display: flex; justify-content: center" data-twitt-post-id="2100404373692240294" src="https://x.com/WeatherNation/status/2100404373692240294"></div>Jacox wants people to know that Kelvin waves are not new. Scientists have known about Kelvin waves for 150 years. “The Kelvin waves are one piece of El Niño. El Niño will also change storm tracks, change wind patterns, and things like that. This is one we are able to track better than we have before, and we will be on top of watching it come through,” said Jacox.Stay with WeatherNation through the hurricane season and the rest of the potential effects of El Niño on the West Coast.

Incoming Kelvin Wave for Southern California: One Piece of the El Nino Puzzle

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<div class="twitter-tweet" style="display: flex; justify-content: center" data-twitt-post-id="2102759898367095088" src="https://x.com/WeatherNation/status/2102759898367095088"></div><h2>FLASH FLOODING</h2>It has been a very active week across portions of the Southwest. Multiple flash flood warnings remain in place, and record-breaking daily rainfall in several cities across the region. Flood alerts remain in place across most of New Mexico through the end of the work week. <img src="https://media.weathernationtv.com/app/uploads/2026/09/WEB 4-1790256321105.png">Heavy rain will continue to funnel into New Mexico Friday, with isolated rain continuing through the weekend.<video src="https://media.weathernationtv.com/app/uploads/2026/09/FORECAST-1790210920539.mp4" controls="true" width="100%"></video>This is rich, tropical moisture inundating these areas. We're expecting heavy totals and high rainfall rates. Because of this, the Weather Prediction Center (WPC) has issued a SLIGHT (level 2 out of 4) risk for flash flooding in areas of New Mexico and Texas for Thursday. A marginal risk remains for portions of Texas and New Mexico for Friday.<img src="https://media.weathernationtv.com/app/uploads/2026/09/WEB 5-1790256253930.png">As for totals, some spots can see up to 4" of rain by the time Saturday rolls around. That's a lot to pick up anywhere in the country, but especially dangerous in the desert southwest.<img src="https://media.weathernationtv.com/app/uploads/2026/09/Screenshot 2026-09-23 070049-1790168468650.png">Going forward, it's very important to know the difference between a flash flood warning and a flash flood emergency. Doing so will get you better prepared for flood events.<img src="https://media.weathernationtv.com/app/uploads/2026/09/Screenshot 2026-09-22 100158-1790085766480.png">Make sure to keep alerts on through this week, and have multiple ways to get them. Also, stay tuned to WeatherNation for the latest. We'll have your full western U.S. breakdown and :50 past the hour.

Major Flooding Possible in the Desert Southwest This Week

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<h2>WHAT TO EXPECT</h2>Record rainfall fell this weekend across the Ohio River Valley and the Mid-Atlantic. On Monday, Ohio tacked on almost 4 more inches in spots. More rainfall is on the way, continuing the risk of flooding. Because of this risk, flood watches remain in place over the next few days across OH, PA, and WV for additional rainfall.<h2><img src="https://media.weathernationtv.com/app/uploads/2026/09/Screenshot 2026-09-22 075632-1790085405907.png">Storms &amp; Timing</h2>A frontal boundary will continue to linger, bringing more rain, with heavy rain embedded in some of the storms that develop. Rounds of rain will continue to develop through Wednesday.<video src="https://media.weathernationtv.com/app/uploads/2026/09/2026-09-22 07-58-32-1790085533334.mp4" controls="true" width="100%"></video><h2>RAINFALL TOTALS</h2>While heavy rain will be possible in some spots the next few days, at least the bulls eye is moving. The heftiest totals look to come down in Virginia down to parts of the Carolinas through Wednesday. <img src="https://media.weathernationtv.com/app/uploads/2026/09/Screenshot 2026-09-22 075700-1790085436091.png">

Rachel Spreading Moisture into the Southwest

Rachel Spreading Moisture into the Southwest

Isaias Makes Landfall as A Category 2, Impacts Spreading North

Isaias Makes Landfall as A Category 2, Impact

Hot Weather Baking the Heartland This Week

Hot Weather Baking the Heartland This Week

Digging Trough Brings Wind and Snow to the Northern Rockies This Weekend

Digging Trough Brings Wind and Snow to the No

Tropics: Another Blob in the Atlantic, Pacific Stays Hyperactive

Tropics: Another Blob in the Atlantic, Pacifi

Flooding, Tornadoes Target Central Florida Thursday

Flooding, Tornadoes Target Central Florida Th

Fall Chill Grips the East While Record Heat Bakes the West

Fall Chill Grips the East While Record Heat B

Fall Temperatures for the Northeast

Fall Temperatures for the Northeast

Stalled Front Heightens Flood Risk Today

Stalled Front Heightens Flood Risk Today

Plains & Midwest: Slow Moving Storms Increase Flood Threat

Plains & Midwest: Slow Moving Storms Increase

Another Round of Flooding Possible for the Southwest

Another Round of Flooding Possible for the So

Nolo Moving West; Flooding Still Possible on Kauai

Nolo Moving West; Flooding Still Possible on

Powerful Nor’easter Slams East Coast over the Weekend

Powerful Nor’easter Slams East Coast over the

Incoming Kelvin Wave for Southern California: One Piece of the El Nino Puzzle

Incoming Kelvin Wave for Southern California:

Major Flooding Possible in the Desert Southwest This Week

Major Flooding Possible in the Desert Southwe

More Flooding Concerns Out East

More Flooding Concerns Out East