Kevin Schneider

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An area of low pressure is intensifying as it moves up the East Coast to end the weekend. Gusty onshore winds will amplify the coastal flood threat created by King Tides, while heavy rainfall could also lead to flash flooding in some areas, including the I-95 corridor in the Mid-Atlantic and Northeast. This low is not expected to gain tropical characteristics; instead, think of the low as an early-season Nor'easter, as impacts will be similar (except for the cold/snow).<h2>Rainfall</h2>As the low moves north from the Carolinas, heavy rain will precede and wrap around the low. Scattered heavy thunderstorms are expected in the Carolinas up through New England through tonight and to start the work week. While coastal areas will see heavy rain, areas inland (mostly west of I-95) are expected to see much less.<video src="https://media.weathernationtv.com/app/uploads/2025/10/NE LOW-1760300179487.mp4" controls="true" width="100%"></video>Areas of 2-5 inches of rain are expected, with isolated areas receiving 6 inches or more. Some areas of South Carolina have already reached 3-4 inches, with a few more possible.<img src="https://media.weathernationtv.com/app/uploads/2025/10/Screenshot 2025-10-12 082711-1760279238089.png"><h2>Winds &amp; Coastal Flooding</h2>Gusty winds are expected as well and could be the biggest impact - especially for the coastal areas. Wind alerts have been posted from the Chesapeake Bay through Cape Cod. Gusts in these areas could approach 60 mph through Monday! Power outages will be possible where wind and rain are elevated. The strongest gusts are expected late Sunday into Monday.<img src="https://media.weathernationtv.com/app/uploads/2025/10/Screenshot 2025-10-12 082727-1760279252051.png">Coastal flood alerts have been issued for much of the Atlantic Coast. Sea water flooding during high tides could approach 2-3 feet of inundation in some areas (warning areas in dark green).<img src="https://media.weathernationtv.com/app/uploads/2025/10/Screenshot 2025-10-12 082757-1760279286650.png">Avoid locations that typically flood during king tides, typically low lying areas near the coast/inlets. <img src="https://media.weathernationtv.com/app/uploads/2025/10/Screenshot 2025-10-12 082821-1760279306843.png">The major flood stage is expected to be reached around the southern Chesapeake, mostly during high tides. Prepare for sea water inundation to continue into Monday.<img src="https://media.weathernationtv.com/app/uploads/2025/10/Screenshot 2025-10-12 082812-1760279311486.png">Stay with WeatherNation for the latest updates.

Patrick Crawford

October Nor'easter Moves Up the Atlantic Coast with Wind & Storms

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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>

Rob Bradley

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It's been months since meaningful snow fell over the higher terrain of California, but that's going to change in the days ahead. Heavy rain, snow, and gusty winds are on the way to the Golden State as a strong trough digs south from Canada to start the work week. Expect impacts to travel in higher terrain, especially over I-80 and CA SR 50 on either side of Lake Tahoe. Over a foot of snow could fall on these corridors.<h1>Forecast</h1>Scattered rain and snow showers will drift south through this evening, delivering the first round of snow to the Sierra. Heavier precipitation is expected to develop on Monday afternoon and evening, with flooding rain possible in lower elevations and very heavy snow in the mountains. Rain moves south along the coast to Los Angeles by Tuesday morning as snow continues in the Central Sierra. Conditions are expected to improve by Wednesday.<video src="https://media.weathernationtv.com/app/uploads/2025/10/FORECAST-1760305395486.mp4" controls="true" width="100%"></video>Snow totals are expected to top a foot or even two feet in the high Sierra, while areas around the Donner Pass can expect 6-12 inches at the summit. Be sure to carry chains and use them once the requirement is put into effect. The heaviest snow is expected from Monday evening into Tuesday.<img src="https://media.weathernationtv.com/app/uploads/2025/10/Screenshot 2025-10-12 151008-1760303426067.png">Winter Storm watches and warnings have been issued for the Sierra Nevada, including South Lake Tahoe and Mammoth Lakes.<img src="https://media.weathernationtv.com/app/uploads/2025/10/Screenshot 2025-10-12 151016-1760303437748.png">This will be the first storm this season for the Sierra Nevada. Make sure you are prepared for winter driving across the passes! Heavy bursts of snow are likely at times in the Central Sierra.<video src="https://media.weathernationtv.com/app/uploads/2025/10/sierra-1760221597161.mp4" controls="true" width="100%"></video><h1>Rain &amp; Flood</h1>Rainfall totals look impressive for an October storm system in California, as it's a bit early in the season for precipitation this heavy. Pockets of 1-3 inches of rain are expected, with isolated totals approaching 4". Rainfall rates and the potential for flooding will likely be highest Monday afternoon through Tuesday morning.<img src="https://media.weathernationtv.com/app/uploads/2025/10/Screenshot 2025-10-12 060206-1760270913954.png">The potential for flash flooding has been highlighted by the WPC for Monday and Tuesday for areas in light green, along with a Flash Flood Watch in southern California, as burn scars from previous fires will be vulnerable (below).<img src="https://media.weathernationtv.com/app/uploads/2025/10/Screenshot 2025-10-12 061205-1760271133770.png"><img src="https://media.weathernationtv.com/app/uploads/2025/10/Screenshot 2025-10-12 143724-1760301463684.png">Stay with Weather Nation for the latest, with your West Regional forecast every :50 past the hour.

Active Weather Returns to California By Monday

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Flash flooding will continue to be possible in the southwestern United States over the next few days as tropical moisture is pulled north into the region. Be sure to <a target="_blank" rel="noopener noreferrer nofollow" href="https://msc.fema.gov/portal/home">check your property's flood zone</a> and have a plan to seek higher ground if necessary. NEVER drive through flood waters if you cannot easily see the water's depth or the road below it. Washouts are likely in the next few days. In fact, several people needed swift water rescues in Las Vegas Friday night as record rainfall targeted the city (0.92" - 4th wettest day on record in October).<div class="twitter-tweet" style="display: flex; justify-content: center" data-twitt-post-id="1976849958520472066" src="https://x.com/WeatherNation/status/1976849958520472066"></div> The remnant moisture from the two most recent tropical systems in the Eastern Pacific, Priscilla and Raymond, will lead to heavy showers and thunderstorms over a wide range of terrain throughout the weekend. Several inches of rain are expected across the Four Corners with isolated heavier totals. <img src="https://media.weathernationtv.com/app/uploads/2025/10/Screenshot 2025-10-12 082433-1760279077516.png">In addition to the flood threat, severe storms are possible through Tuesday as the trough moving through the northern Rockies increases wind shear farther south. Damaging wind gusts are expected to be the primary threat, but large hail could accompany any of the stronger storms in the afternoons.<img src="https://media.weathernationtv.com/app/uploads/2025/10/Screenshot 2025-10-12 082225-1760278949784.png"> We have seen heavy rain and flooding with these storms, and that threat will continue over the next few days. The surge of moisture through Tuesday from Raymond will also increase flood chances for areas of Arizona, New Mexico, and Colorado.<video src="https://media.weathernationtv.com/app/uploads/2025/10/sw-1760300361776.mp4" controls="true" width="100%"></video>We'll be detailing this more live on WeatherNation. For a more immediate update on your southwest regional forecast, be sure to tune in at:50!

Jackie Brown

Increasing Flood Threat Across the Southwest With Tropical Influence

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The 2025 Atlantic Hurricane Season has thus far been dominated by strong hurricanes, curving away from the United States with a few close calls/impacts from weaker systems. Don't let your guard down! October and even November can still churn out strong storms in the Gulf and Caribbean.A tropical wave in the eastern Atlantic has a chance to develop this week as it churns into the central Atlantic. This storm is currently expected to stay well out into open waters.<img src="https://media.weathernationtv.com/app/uploads/2025/10/Screenshot 2025-10-12 083149-1760279512949.png">The Climate Prediction Center (CPC) has outlined a few regions with chances for tropical development through the middle/end of October.<img src="https://media.weathernationtv.com/app/uploads/2025/10/Screenshot 2025-10-10 045254-1760093597412.png"><img src="https://media.weathernationtv.com/app/uploads/2025/10/Screenshot 2025-10-10 045309-1760093605441.png">The next names on the 2025 Atlantic Hurricane list are Lorenzo and Melissa.<img src="https://media.weathernationtv.com/app/uploads/2025/10/Screenshot 2025-10-11 072558-1760189164925.png">Make sure to stay tuned to WeatherNation for the latest on the tropics.

Taban Sharifi

Atlantic Tropics: Tropical Waves Could Develop Next Week

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La Niña was observed in September, leading to NOAA issuing a La Niña advisory. These conditions are expected to persist through winter into spring, with impacts likely for the upcoming winter season and beyond into next spring. La Niña often plays a role in determining storm tracks during the winter season and severe weather into the spring.<h1>What is La Niña?</h1>La Niña is one phase of a large circulation over the equatorial Pacific Ocean. The prevalent wind direction will churn up cooler or warmer water, based on the direction of the circulation. When winds are prevailing from the east, it churns up cooler waters near the coast of South America and to the west, while areas in the western Pacific see warmer than average water temperatures during this phase. These cooler waters, along with other large scale circulations, impact how air flows across the United States.<img src="https://media.weathernationtv.com/app/uploads/2025/10/Screenshot 2025-10-10 110029-1760115646348.png">During strong La Niñas, the jet stream is typically more active from the Northwest through the Great Lakes. This effect is typically less pronounced during weaker events. This often favors better chances for precipitation across the northern tier of the country, including the Northwest and Great Lakes.<img src="https://media.weathernationtv.com/app/uploads/2025/10/Screenshot 2025-10-10 095632-1760111817342.png"><h1>Impact for Winter 25'-26'</h1>NOAA releases their outlook for the upcoming winter season this Thursday (October 16th) but the Climate Prediction Center continuously updates outlooks for three month periods. These outlooks likely won't change much with next week's update but we'll bring you that forecast when it's released. The temperature and precipitation outlooks for December - February show conditions typical for a La Niña year, with below average temperatures favored in the Pacific Northwest.<img src="https://media.weathernationtv.com/app/uploads/2025/10/Screenshot 2025-10-10 095641-1760111827269.png">The precipitation outlook also favors conditions fairly typical for a La Niña winter, with above average precipitation favored around the Northern Rockies and Great Lakes/Ohio Valley.<img src="https://media.weathernationtv.com/app/uploads/2025/10/Screenshot 2025-10-10 095637-1760111827269.png"><h1>Spring Severe Weather / Tornado Impacts</h1>La Niña is expected to decay through the spring months, which can have a big impact on the severe weather season. <a target="_blank" rel="noopener noreferrer nofollow" href="https://www.gfdl.noaa.gov/research_highlight/u-s-regional-tornado-outbreaks-and-their-links-to-spring-enso-phases-and-north-atlantic-sst-variability/">Studies have shown</a> a increase in the potential for tornado outbreaks over certain areas of the country as La Niña decays into a neutral or El Niño phase. These favored areas include the Central/Southern Plains and around the lower Great Lakes into the Mid-Mississippi Valley.<img src="https://media.weathernationtv.com/app/uploads/2025/10/Screenshot 2025-10-10 105635-1760115430383.png">This phase also <a target="_blank" rel="noopener noreferrer nofollow" href="https://www.aoml.noaa.gov/wp-content/uploads/2019/06/ENSO_Tornado_Lee.pdf">favors stronger tornadoes</a>, as the number of high end tornadoes and outbreaks increase during this phase.<img src="https://media.weathernationtv.com/app/uploads/2025/10/Screenshot 2025-10-10 100658-1760112433708.png">Seasonal forecasts are difficult to predict with accuracy, so be sure to check the weather forecasts often with WeatherNation for the latest.

Increasing Flood Threat Across the Southwest With Tropical Influence

Atlantic Tropics: Tropical Waves Could Develop Next Week

La Niña Advisory Issued, Potential Impacts to Winter Precip & Springtime Tornadoes

October Nor'easter Moves Up the Atlantic Coast with Wind & Storms

Active Weather Returns to California By Monday

Increasing Flood Threat Across the Southwest With Tropical Influence

Atlantic Tropics: Tropical Waves Could Develop Next Week

La Niña Advisory Issued, Potential Impacts to Winter Precip & Springtime Tornadoes

October Nor'easter Moves Up the Atlantic Coast with Wind & Storms

Active Weather Returns to California By Monday

Increasing Flood Threat Across the Southwest With Tropical Influence

Atlantic Tropics: Tropical Waves Could Develop Next Week

La Niña Advisory Issued, Potential Impacts to Winter Precip & Springtime Tornadoes