Tracey Anthony

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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><p>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. </p><p><img src="https://media.weathernationtv.com/app/uploads/2026/09/WEB 4-1790256321105.png"></p><p>Heavy rain will continue to funnel into New Mexico Friday, with isolated rain continuing through the weekend.</p><video src="https://media.weathernationtv.com/app/uploads/2026/09/FORECAST-1790210920539.mp4" controls="true" width="100%"></video><p></p><p>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 <strong>SLIGHT </strong>(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.</p><p><img src="https://media.weathernationtv.com/app/uploads/2026/09/WEB 5-1790256253930.png"></p><p>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.</p><p><img src="https://media.weathernationtv.com/app/uploads/2026/09/Screenshot 2026-09-23 070049-1790168468650.png"></p><p>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.</p><p><img src="https://media.weathernationtv.com/app/uploads/2026/09/Screenshot 2026-09-22 100158-1790085766480.png"></p><p>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.</p>

Major Flooding Possible in the Desert Southwest This Week

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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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<p><span style="color: black">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. </span></p><div class="twitter-tweet" style="display: flex; justify-content: center" data-twitt-post-id="2102087880307011690" src="https://x.com/CAgovernor/status/2102087880307011690"></div><p><span style="color: black">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. </span></p><div data-youtube-video=""><iframe width="640" height="480" allowfullscreen="false" src="https://www.youtube.com/embed/B6COLBbZxgE" start="0"></iframe></div><p></p><h3 style="text-align: start"><strong>What is a Kelvin wave?</strong></h3><p style="text-align: start">These waves are very different from the waves we think about crashing on the beach. These waves originate off the equator.</p><p style="text-align: start"><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.”</p><p style="text-align: start">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.”</p><p style="text-align: start">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.</p><div class="twitter-tweet" style="display: flex; justify-content: center" data-twitt-post-id="2100404373692240294" src="https://x.com/WeatherNation/status/2100404373692240294"></div><p style="text-align: start">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.</p><p style="text-align: start">Stay with WeatherNation through the hurricane season and the rest of the potential effects of El Niño on the West Coast.</p>

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

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<p></p><div class="twitter-tweet" style="display: flex; justify-content: center" data-twitt-post-id="2103099635468226957" src="https://x.com/WeatherNation/status/2103099635468226957"></div><p>A strengthening coastal storm is intensifying as it moves towards the eastern seaboard.. Coastal impacts are already being felt by this Nor'easter as the Mid-Atlantic will experience prolonged onshore wind into the weekend. </p><p><img src="https://media.weathernationtv.com/app/uploads/2026/09/WEB 2-1790255992383.png"></p><p> <strong>Coastal Flood Warnings </strong>and <strong>Advisories</strong> are in effect through Saturday and reports are already starting to roll in. </p><p><img src="https://media.weathernationtv.com/app/uploads/2026/09/WEB 1-1790255613912.png"></p><p>3-7 day hazards outlooks are also in place for heavy rainfall and strong winds as this low approaches late in the week.</p><p><img src="https://media.weathernationtv.com/app/uploads/2026/09/Screenshot 2026-09-22 121109-1790100705807.png">With these kinds of setups, gusty winds are of utmost concern. We could see potential 40-60 mph gusts along the coastline through the end of the week!</p><p><img src="https://media.weathernationtv.com/app/uploads/2026/09/Screenshot 2026-09-23 065650-1790168224583.png">Rainfall totals are also expected to be higher along the coast as well. Check out where some of the heaviest rainfall is setting up. This means increasing flood conditions across the Northeast.</p><p><img src="https://media.weathernationtv.com/app/uploads/2026/09/PIC 4-1790210749931.png"><img src="https://media.weathernationtv.com/app/uploads/2026/09/PIC 5-1790210757278.png"></p><p>We spoke to Eric Hoeflich, Meteorologist, NWS Mt. Holly. Here are some of the impacts we are currently expecting.</p><video src="https://media.weathernationtv.com/app/uploads/2026/09/SOT_TRT_1.00_LARGE COASTAL IMPACTS AND GIANT WAVES_NWS MT. HOLLY_ERIC HOEFLICH_BD_E092126-1790039480469.mp4" controls="true" width="100%"></video><p>There's still a way to go in the forecast. Make sure to stay tuned to WeatherNation for the latest!</p>

Early Season Nor'easter Takes Aim at the Northeast

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<p><span style="color: rgb(0, 0, 0)">The Pacific Ocean has been incredibly active so far this hurricane season, and it shows no sign of slowing down. Right now, </span><strong><span style="color: rgb(0, 0, 0)">Hurricane Polo</span></strong><span style="color: rgb(0, 0, 0)"> is churning southwest of Mexico (above). This storm underwent </span><strong><span style="color: rgb(0, 0, 0)">rapid intensification</span></strong><span style="color: rgb(0, 0, 0)"> and reached peak winds 180 mph with a central pressure of 892mb.</span></p><p><span style="color: rgb(0, 0, 0)">Meanwhile, the Atlantic remains kind of quiet, as record wind shear continues to tear apart tropical waves moving off Africa. In fact, there is now a new record for the year since there has not been a hurricane formation. This is the first time in 60 years the Atlantic Basin has not seen a hurricane since the satellite era in 1966.</span></p><h1><img src="https://media.weathernationtv.com/app/uploads/2026/09/Screenshot 2026-09-22 074149-1790084525643.png">Pacific Basin</h1><p>Several systems are being monitored in the Pacific, with some impacts to land possible this week. We are monitoring <strong>Odalys, Polo</strong> and <strong>Nolo</strong>.</p><p><img src="https://media.weathernationtv.com/app/uploads/2026/09/PIC 5-1790211137712.png"></p><p>The Hawaiian Islands should monitor the potential for life-threatening flash flooding and mudslides Thursday through Saturday as a system looks to further organize into the weekend.<img src="https://media.weathernationtv.com/app/uploads/2026/09/WEB 4-1790167096702.png"></p><h3>Polo</h3><p><strong>Hurricane Polo</strong> became yet another<strong> category 5 </strong>hurricane on Tuesday morning after undergoing extremely rapid intensification. Shortly after formation late Sunday night, it added 115 mph to its sustained wind speed by Tuesday morning.</p><p><img src="https://media.weathernationtv.com/app/uploads/2026/09/Screenshot 2026-09-22 182941-1790123384605.png">Even though Polo is a monster lurking off the coast, direct impacts will likely not be felt. However, periodic heavy rain and angry seas will affect the Mexican beaches as Polo moves northwest and maintains major hurricane status over the next several days.</p><p><img src="https://media.weathernationtv.com/app/uploads/2026/09/PIC 4-1790211172303.png"></p><p></p><h1>Odalys</h1><p>This cyclone has struggled to strengthen much since its formation. That will be a theme of its lifespan, as it ultimately succumbs to a stronger cyclone this weekend in Polo.</p><p><img src="https://media.weathernationtv.com/app/uploads/2026/09/WEB 3-1790167029809.png"></p><h1>Atlantic Basin</h1><p>We are watching one area of interest in the Atlantic Basin as this area has a medium chance for development. Tropical Depression Fay formed earlier in the day on Wednesday. This storm will likely stay a depression and not impact any land.</p><p><img src="https://media.weathernationtv.com/app/uploads/2026/09/PIC 4-1790211253880.png"></p><h1><strong><span style="color: rgb(0, 0, 0)">El Niño Fueling Pacific Activity</span></strong></h1><p><img src="https://media.weathernationtv.com/app/uploads/2026/09/Screenshot 2026-09-22 075045-1790085064967.png"></p><p><span style="color: rgb(0, 0, 0)">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.</span></p><p><img src="https://media.weathernationtv.com/app/uploads/2026/09/Screenshot 2026-09-16 073748-1789565873978.png"><span style="color: rgb(0, 0, 0)">This year’s El Nino has already strengthened considerably, and forecasts indicate it could become exceptionally strong later this year.</span></p><p><img src="https://media.weathernationtv.com/app/uploads/2026/09/Screenshot 2026-09-12 063433-1789216512410.png"></p>

Jesse Kelley

Fay Reforms In The Atlantic; Eastern Pacific Stays Active

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Kevin Schneider

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<h2><strong>WHAT TO EXPECT</strong></h2><p>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.</p><h2><img src="https://media.weathernationtv.com/app/uploads/2026/09/Screenshot 2026-09-22 075632-1790085405907.png">Storms &amp; Timing</h2><p>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.</p><video src="https://media.weathernationtv.com/app/uploads/2026/09/2026-09-22 07-58-32-1790085533334.mp4" controls="true" width="100%"></video><h2><strong>RAINFALL TOTALS</strong></h2><p>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. </p><p><img src="https://media.weathernationtv.com/app/uploads/2026/09/Screenshot 2026-09-22 075700-1790085436091.png"></p>

Early Season Nor'easter Takes Aim at the Northeast

Fay Reforms In The Atlantic; Eastern Pacific Stays Active

More Flooding Concerns Out East

Major Flooding Possible in the Desert Southwest This Week

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

Early Season Nor'easter Takes Aim at the Northeast

Fay Reforms In The Atlantic; Eastern Pacific Stays Active

More Flooding Concerns Out East

Major Flooding Possible in the Desert Southwest This Week

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

Early Season Nor'easter Takes Aim at the Northeast

Fay Reforms In The Atlantic; Eastern Pacific Stays Active

More Flooding Concerns Out East