Kevin Schneider

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<p>Heavy rain, snow, and gusty winds continue to move through the Golden State as a strong trough digs south from Canada to start the work week. Rainfall totals of up to 5 inches have already fallen in portions of California. 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.</p><h1>Forecast</h1><p>Scattered rain and snow showers  continue across California. We have seen flash flooding, severe storms, heavy rain, and heavy snow. Conditions are expected to improve by Wednesday.</p><video src="https://media.weathernationtv.com/app/uploads/2025/10/10-13 west vans3k-1760407474437.mp4" controls="true" width="100%"></video><p>Rainfall totals appear impressive for an October storm system in California, considering it's a bit early in the season for such heavy precipitation. Pockets of 1-3 inches of rain are expected, with isolated totals approaching 5".</p><p><img src="https://media.weathernationtv.com/app/uploads/2025/10/Web6-1760442203677.png"></p><h1>Snowfall</h1><p>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. <img src="https://media.weathernationtv.com/app/uploads/2025/10/Web4-1760442028168.png"></p><p><strong>Winter Storm Warnings </strong>(Pink)<strong> </strong>and <strong>Winter Weather Advisories</strong> (Purple) have been issued for the Sierra Nevada, including South Lake Tahoe and Mammoth Lakes, with treacherous travel expected.</p><p><img src="https://media.weathernationtv.com/app/uploads/2025/10/Web5-1760442053474.png"></p><p>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.</p><h1>Severe Threat</h1><p>With such a potent trough ushering in the cold air to fire up snow, it will also help organize storms in the lower elevations. Which means the threat of a few severe storms will move in as the storms do tonight. For areas closer to Los Angeles, it could be after midnight before storms push in.</p><h1><img src="https://media.weathernationtv.com/app/uploads/2025/10/Screenshot 2025-10-13 100505-1760371875330.png">Rain &amp; Flooding</h1><p>Heavy rain is another worry with recently burned scarred land in California.</p><p><img src="https://media.weathernationtv.com/app/uploads/2025/10/Screenshot 2025-10-14 070827-1760447320272.png"></p><p>Flash flooding and debris flows will be possible through Tuesday. Up to 3 inchces of rainfall look possible for some of the burn scarred areas of southern California from recent wildfires.</p><p><img src="https://media.weathernationtv.com/app/uploads/2025/10/Web8-1760442304430.png"></p><p>Stay with Weather Nation for the latest, with your West Regional forecast every :50 past the hour.</p>

Jackie Brown

California: Flooding Rain, Heavy Snow, Isolated Tornadoes

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<p>Flash flooding will continue to be possible in the southwestern United States over the next couple of days. 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. Multiple water rescues have been needed over the past few days. Remember, you're not only risking your life but the lives of the first responders if you drive into flooded roads.</p><p></p><div class="twitter-tweet" style="display: flex; justify-content: center" data-twitt-post-id="1978098719095406800" src="https://x.com/WeatherNation/status/1978098719095406800"></div><p><br><br>The remnant moisture from the two most recent tropical systems in the Eastern Pacific, Priscilla and Raymond, led to heavy showers and thunderstorms over a wide range of terrain throughout the weekend. and now a trough out west and a ridge out east are helping to funnel moisture into New Mexico and Colorado. Several inches of rain are expected across the Four Corners with isolated heavier totals.</p><p><img src="https://media.weathernationtv.com/app/uploads/2025/10/Web2-1760441716389.png"></p><p>In addition to the flood threat, severe storms are possible through Wednesday as the trough moving through the northern Rockies increases wind shear farther south. Damaging wind gusts have been a problem already this week, with places like Tempe clocking 71 mph winds from a microburst.</p><p><img src="https://media.weathernationtv.com/app/uploads/2025/10/Web3-1760441806773.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.</p><video src="https://media.weathernationtv.com/app/uploads/2025/10/as-1760470829966.mp4" controls="true" width="100%"></video><p></p><p>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!</p>

Flooding Concern Continues in the Southwest

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Alana Cameron was born and raised in Canada in the city of Mississauga, just outside of Toronto. Alana is the oldest of 4 siblings, all close in age, and grew up playing outside with them in all types of weather. After graduating high school, Alana moved to study at the University of British Columbia in Kelowna for a year before transferring to Dalhousie University in Halifax, Nova Scotia where she completed a Bachelor of Science in Physics and Atmospheric Science. Upon completion, Alana moved back to Toronto where she completed a post-grad degree in Meteorology at York University. After her post-grad, she went on to complete another post-grad in Broadcast Journalism - TV News at Fanshawe College in London, Ontario. During her final year of studies she had the privilege of interning with the best in the business in Canada at The Weather Network. Once she finished her internship, she got the call from small-town Denison, Texas where she accepted a job as an on-air meteorologist at KTEN-TV, right in tornado alley, covering severe weather from Sherman/Denison (North Texas) to Ada (Southern Oklahoma). After the most active tornado season Oklahoma had seen in May 2019 (105 tornadoes!) Alana is excited to join WeatherNation to cover weather all across the nation. If you're interested in following her on social media she can be found @alanacameronwx!

Alana Cameron

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<p><strong>NORTHWEST </strong>- After winter weather alerts were issued last week in the northwest, and snow totals topped out at 25", another round of potential snowfall is in store for the northwest.</p><p><img src="https://media.weathernationtv.com/app/uploads/2025/10/Screenshot 2025-10-14 105450-1760460901439.png">This next round will be much more scattered in nature and may take a day or so to really accumulate on the mountain peaks. Currently ,there are no winter weather alerts in place for the Rockies, but rain and snow are certainly in the forecast.</p><video src="https://media.weathernationtv.com/app/uploads/2025/10/10-13 rnw bams-1760407820926.mp4" controls="true" width="100%"></video><p>From now through Friday, rain totals may reach an inch and snowfall totals may surpass half a foot, especially in the Tetons, northern Rockies, and Bitteroots.</p><p><img src="https://media.weathernationtv.com/app/uploads/2025/10/Web1-1760441588494.png"></p><p>For more details on how this may impact temperatures, be sure to join us at :50 past the hour on TV for your west regional forecast.</p>

Another Round of Snow for the Rockies

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<p>A low-pressure system that has tracked up the East Coast continues to bring threats of coastal flooding, heavy rainfall, and strong winds. While this system has not developed, and is not expected to develop, any tropical characteristics, it’s behaving much like an early-season Nor’easter, delivering similar impacts minus the cold and snow. Areas along the shores of North Carolina to New England were impacted by this system.</p><div class="twitter-tweet" style="display: flex; justify-content: center" data-twitt-post-id="1977894622975430882" src="https://x.com/WeatherNation/status/1977894622975430882"></div><p>The system is expected to move away from the coast through Tuesday but New Jersey still had a handful of strong wind reports on Monday. </p><p><img src="https://media.weathernationtv.com/app/uploads/2025/10/Web 14-1760436387824.png"></p><h2><strong>Rainfall</strong></h2><p>Heavy rain was very localized from this system, and will be far and few especially as it moves away from the East Coast. But a few daily rainfall records were still broken on Monday. </p><p><img src="https://media.weathernationtv.com/app/uploads/2025/10/Web 13-1760436496566.png"></p><p>A few scattered rain showers still remain possible.</p><video src="https://media.weathernationtv.com/app/uploads/2025/10/10-13 east-1760408242196.mp4" controls="true" width="100%"></video><p></p><p>Coastal flood alerts have been slowly ending for much of the Atlantic Coast. Sea water flooding during high tides could still approach 2-3 feet of inundation in some areas (warning areas in dark green).</p><p><img src="https://media.weathernationtv.com/app/uploads/2025/10/Web 12-1760436278168.png"></p><p>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.</p><p><img src="https://media.weathernationtv.com/app/uploads/2025/10/Screenshot 2025-10-13 124158-1760380926209.png"></p><p>Stay with WeatherNation for the latest updates.</p>

October Nor'easter Wrapping Up For the Atlantic

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<p>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. That being said, we have another storm that will be picking on the fish in the Atlantic. Tropical Storm Lorenzo formed Monday morning and will stay well out to sea. About the only meteorologically significant nugget with Lorenzo is whether it will reach hurricane strength.</p><p><img src="https://media.weathernationtv.com/app/uploads/2025/10/Web 11-1760435117836.png"></p><p></p><p>The Climate Prediction Center (CPC) has outlined a few regions with chances for tropical development through the middle/end of October.</p><h2><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">EASTERN PACIFIC</h2><p>The more active basin is still going. Another area of development is being monitored by the National Hurricane Center, but nothing is expected to form in the next few days. The next name on the list in the Eastern Pacific Basin is Sonia.</p><p><img src="https://media.weathernationtv.com/app/uploads/2025/10/Web 9-1760434934675.png"></p><p>Make sure to stay tuned to WeatherNation for the latest on the tropics.</p>

Tropical Storm Lorenzo Spinning In the Atlantic

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<p style="margin: 0in; margin-bottom: .0001pt;"><span style="font-size: 13.5pt; color: #454545;">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></span></p>

Rob Bradley

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<p>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.</p><h1>What is La Niña?</h1><p>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.</p><p><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.</p><p><img src="https://media.weathernationtv.com/app/uploads/2025/10/Screenshot 2025-10-10 095632-1760111817342.png"></p><h1>Impact for Winter 25'-26'</h1><p>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.</p><p><img src="https://media.weathernationtv.com/app/uploads/2025/10/Screenshot 2025-10-10 095641-1760111827269.png"></p><p>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.</p><p><img src="https://media.weathernationtv.com/app/uploads/2025/10/Screenshot 2025-10-10 095637-1760111827269.png"></p><h1>Spring Severe Weather / Tornado Impacts</h1><p>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.</p><p><img src="https://media.weathernationtv.com/app/uploads/2025/10/Screenshot 2025-10-10 105635-1760115430383.png"></p><p>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.</p><p><img src="https://media.weathernationtv.com/app/uploads/2025/10/Screenshot 2025-10-10 100658-1760112433708.png"></p><p>Seasonal forecasts are difficult to predict with accuracy, so be sure to check the weather forecasts often with WeatherNation for the latest.</p>

Tracey Anthony

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

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Karissa is the Director of On-Air Operations at WeatherNation. Karissa grew up loving math and science, but really fell in love with Meteorology while attending the College of DuPage in Glen Ellyn, Illinois. After two summers of storm chasing in the central plains, she knew that it was the career path for her. Standing in front of a thunderstorm and feeling the cool outflow knock her over was an experience she will never forget. After two years at COD, she transferred to Metropolitan State University of Denver. Karissa graduated Magna Cum Laude with a Bachelors of Science in Meteorology. Her high school and college speech and meteorology professors were extremely supportive and pushed her to succeed. Before joining the WeatherNation team, she previously worked as the Morning Meteorologist at KCAU-TV in Sioux City, Iowa and at WMBD-TV in Peoria, IL. She recently was part of a National Edward R. Murrow award winning team for breaking news for their coverage of the EF-4 tornado in Washington, Illinois. In her free time, Karissa enjoys cooking and trying new foods. She is a self proclaimed 'TV Junkie' who can get into just about any show. She is a die hard Chicago sports fan who loves attending professional sporting events.

Karissa Klos

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<p>The National Weather Service in Grand Forks, ND, has ruled that a tornado near Enderlin, ND, caused EF-5 level damage upon further investigation. This marks the end of 12 years without a surveyed EF-5 tornado in the U.S. The last time EF-5 damage was reported from a tornado was in May of 2013 in Moore, OK.</p><p>The tornado is estimated to have wind speeds greater than 210 miles per hour. This tornado was on the ground for 12.1 miles with a width of just over a mile! Sadly, this storm caused three fatalities.</p><p><img src="https://media.weathernationtv.com/app/uploads/2025/10/Screenshot 2025-10-06 104454-1759769110628.png"></p><p>Here is more on what led the NWS to upgrade its survey findings:</p><blockquote><p><em>"The National Weather Service in Grand Forks conducted additional surveys and worked extensively with wind damage experts to further investigate the 20 June 2025 Enderlin, ND tornado #1. The estimated maximum wind speed of the Enderlin, ND tornado #1 is greater than 210 mph and occurred during the time of the train derailment south of Enderlin, ND. The analysis involved forensic damage wind speed estimates for tipping several fully-loaded grain hopper cars and lofting of tanker cars, including one empty tanker car that was tossed about 475.7 ft (145 m)."</em></p></blockquote><p><img src="https://media.weathernationtv.com/app/uploads/2025/10/Screenshot 2025-10-06 102949-1759768203710.png">We spoke with the National Weather Service in Grand Forks, ND, to learn more about the decision to upgrade the tornado rating and the factors that influenced the decision.</p><div data-youtube-video=""><iframe width="640" height="480" allowfullscreen="false" src="https://www.youtube.com/embed/xSnzPzENapk" start="0"></iframe></div><h1>SET-UP</h1><p>On June 20, 2025, a derecho brought wind gusts of 70 -105 mph to the north central U.S., spanning over 400 miles and leaving hundreds of thousands of households without power. Multiple long-track, destructive tornadoes were within this storm system.</p><p style="text-align: start">A derecho is a long-lived severe wind event, with specific criteria about the length and width of the damaging wind swath. The <a target="_blank" rel="noopener noreferrer nofollow" href="https://www.spc.noaa.gov/misc/AbtDerechos/derechofacts.htm"><strong><u>SPC has a detailed page</u></strong></a> dedicated to these destructive windstorms. Several typically occur each year, though they can vary in intensity and area. A notable <a target="_blank" rel="noopener noreferrer nofollow" href="https://www.weathernationtv.com/news/one-year-ago-the-midwest-derecho"><strong><u>derecho ripped through Des Moines in 2020</u></strong></a>, producing hurricane-force winds and widespread damage.</p><video src="https://media.weathernationtv.com/app/uploads/2025/06/2025-06-21%2005-35-48-1750505871964.mp4" controls="true" width="100%"></video><h2 style="text-align: start">OTHER REPORTS</h2><p style="text-align: start">Wind gusts in North Dakota and Minnesota (as well as northern South Dakota) were impressive, many over hurricane strength. A wake-low also developed behind the leading edge, producing severe strength winds (58+ mph) in some locations for over an hour!</p><p style="text-align: start"><img src="https://media.weathernationtv.com/app/uploads/2025/06/Screenshot%202025-06-21%20053620-1750505847379.png">Bemidji, Minnesota, was hit particularly hard in the overnight hours as an intense bout of winds moved through the area, with a tornado potentially embedded in the circulation. The Bemidji Regional Airport reported a gust to 106 mph, with widespread damage reported in the area.</p><p style="text-align: start"><img src="https://media.weathernationtv.com/app/uploads/2025/06/Screenshot%202025-06-21%20053627-1750505847378.png">The widely spanning severe winds have left hundreds of thousands of households in the dark the following morning, with some counties reporting well over 60-60% of customers without power. As a reminder, if you're going to run a generator to power anything, keep it at least 25 feet away from any opening in your home, like windows and doors.<img src="https://media.weathernationtv.com/app/uploads/2025/06/1-1750541351436.png"></p><p style="text-align: start">This was one of many severe weather events that pushed<a target="_blank" rel="noopener noreferrer nofollow" href="https://www.weathernationtv.com/news/north-dakota-breaks-yearly-tornado-record"> North Dakota to break their yearly tornado record</a>.</p><div data-youtube-video=""><iframe width="640" height="480" allowfullscreen="false" src="https://www.youtube.com/embed/2dgiWTWdp-0" start="0"></iframe></div><h1></h1>

Upgraded North Dakota Tornado Ends EF-5 Drought

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We are looking at a strong chance for large hail, damaging winds and isolated tornadoes over parts of South Dakota and Nebraska for Friday afternoon and evening.  The tornado risk could actually impact parts of Minnesota and Iowa as well.
<h2><strong>Severe Outlook</strong></h2>
<img class="alignnone wp-image-93582 size-full" src="https://media.weathernationtv.com/app/uploads/2018/07/7day2.jpg" alt="" width="1920" height="1080" />

<strong> </strong>Several areas across the country could see some isolated severe storms today.  This includes the Central Rockies, the Ohio Valley and the Gulf Coast of Texas and Louisiana.  This will not be a huge severe outbreak, but large hail and damaging winds will be the primary weather threats.

&nbsp;
<h2><strong>Forecast</strong></h2>
A lot of these storms will be developing during the afternoon and evening hours.  Here is the latest forecast.

<strong>Central Rockies and Middle Mississippi Valley</strong>

<img class="alignnone wp-image-93575 size-full" src="https://media.weathernationtv.com/app/uploads/2018/07/7day3.jpg" alt="" width="1920" height="1080" />

<img class="alignnone wp-image-93576 size-full" src="https://media.weathernationtv.com/app/uploads/2018/07/7day4.jpg" alt="" width="1920" height="1080" />

<strong>Gulf Coast</strong>

<img class="alignnone wp-image-93577 size-full" src="https://media.weathernationtv.com/app/uploads/2018/07/bad.jpg" alt="" width="1920" height="1080" />

<img class="alignnone wp-image-93578 size-full" src="https://media.weathernationtv.com/app/uploads/2018/07/brqaed.jpg" alt="" width="1920" height="1080" />

<strong>Northeast</strong>

<img class="alignnone wp-image-93579 size-full" src="https://media.weathernationtv.com/app/uploads/2018/07/Capture-4.jpg" alt="" width="1920" height="1080" />

<img class="alignnone wp-image-93580 size-full" src="https://media.weathernationtv.com/app/uploads/2018/07/cle.jpg" alt="" width="1920" height="1080" />

<img class="alignnone wp-image-93581 size-full" src="https://media.weathernationtv.com/app/uploads/2018/07/cone.jpg" alt="" width="1920" height="1080" />

Keep checking back with WeatherNation for more updates on today's severe weather.

&nbsp;

<a href="https://www.facebook.com/MeteorologistPC/"><strong>Meteorologist Patrick Crawford</strong></a>

Thursday Severe Weather Update

Severe Outlook

Forecast

California: Flooding Rain, Heavy Snow, Isolated Tornadoes

Heavy rain, snow, and gusty winds continue to

Flooding Concern Continues in the Southwest

Flash flooding will continue to be possible i

Another Round of Snow for the Rockies

NORTHWEST - After winter weather alerts were

October Nor'easter Wrapping Up For the Atlantic

A low-pressure system that has tracked up the

Tropical Storm Lorenzo Spinning In the Atlantic

The 2025 Atlantic Hurricane Season has thus f

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

La Niña was observed in September, leading to

Upgraded North Dakota Tornado Ends EF-5 Drought

The National Weather Service in Grand Forks,