WeatherNation Meteorologists

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Ready for some fall-like temperatures? Some residents in the Northwest will get a taste of autumn as a cold trough of low pressure digs into the region from Canada this weekend. Another cold trough is expected in the area next week as well!<video src="https://media.weathernationtv.com/app/uploads/2026/08/west troughies-1788052370992.mp4" controls="true" width="100%"></video> Farther south, the cooler air will be clashing with the warmth of summer, leading to energy for strong storms and heavy downpours. Many areas around the Four Corners and Rockies will have potential to see 1-3 inches of rain by the end of the day on Tuesday.<h1>Rain &amp; Flood</h1>Pacific moisture will inundate the region, with days of heavy downpours for areas around the Four Corners. 1-4 inches of rain are expected in the favored locations, with scattered flash flooding possible.<img src="https://media.weathernationtv.com/app/uploads/2026/08/Screenshot 2026-08-29 191327-1788052454224.png">Flood outlooks are elevated through Monday in portions of Arizona and Utah, with the isolated risk for flooding lingers around the region through Wednesday, at least.<video src="https://media.weathernationtv.com/app/uploads/2026/08/08-29 western eros-1788052464835.mp4" controls="true" width="100%"></video><h1>Severe Storms</h1>As the low and cold front swings through the Rockies with scattered severe storms are possible from eastern Nevada through northern Utah. Isolated severe storms are possible for areas in green from Tucson through Cheyenne.<img src="https://media.weathernationtv.com/app/uploads/2026/08/Screenshot 2026-08-29 191815-1788052704930.png">Winds have already gusted up to 60-70 mph Saturday night, and the risk for damaging winds continues across the High Country through the overnight hours.<img src="https://media.weathernationtv.com/app/uploads/2026/08/Screenshot 2026-08-29 191540-1788052715151.png">Severe storms appear possible around the Four Corners on Sunday and Monday as well, so stay prepared to seek shelter if a warning is issued for you.<video src="https://media.weathernationtv.com/app/uploads/2026/08/08-29 WEST OVERNIGHT BAMS-1788052759450.mp4" controls="true" width="100%"></video><h1>Drought Relief</h1>September is favored for above average precipitation across a majority of the Western United States. This would be a great way to end a solid monsoon season, which runs through the end of the month.<img src="https://media.weathernationtv.com/app/uploads/2026/08/Screenshot 2026-08-29 075355-1788011658558.png">With more rain on the way, drought improvement is likely for some areas, while drought removal is even possible in others. Keep doing your rain dance (take video and tag us if you do!).<img src="https://media.weathernationtv.com/app/uploads/2026/08/Screenshot 2026-08-29 075403-1788011667031.png">

Alana Cameron

Western U.S. Enters a Rainier Pattern

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It has been an active summer for portions of the Northern Plains, with several rounds of severe weather even during the last week. Another low will spur additional severe weather threats through the end of the weekend and into Monday. Damaging winds and large hail will be the biggest threats. The tornado threat will be isolated, but possible. Daytime heating will provide instability, with afternoons and evenings offering the best chance of severe storms.<img src="https://media.weathernationtv.com/app/uploads/2026/08/Screenshot 2026-08-29 192049-1788052886938.png">High-based thunderstorms are possible as a trough moves from the Rockies into the Plains. On Sunday, storms from the Rockies are also likely to head east ahead of a cold front into the Plains and Dakotas, whereas a warm front will also allow for thunderstorms throughout the day.<video src="https://media.weathernationtv.com/app/uploads/2026/08/08-29 rnc overnight bams-1788052906153.mp4" controls="true" width="100%"></video>Most will see around a quarter of an inch or less of rain, but there will be localized heavier rainfall in the storms that develop over the next few days.<img src="https://media.weathernationtv.com/app/uploads/2026/08/Screenshot 2026-08-29 192155-1788052923169.png"><img src="https://media.weathernationtv.com/app/uploads/2026/08/Screenshot 2026-08-29 162922-1788042571459.png">For the latest updates on these storms, make sure to tune into the central regional forecast:30 past the hour.

Days of Severe Weather For The Plains

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Brittany Lockley

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The Pacific hurricane season is showing no signs of slowing down as multiple tropical systems churn across the basin, with warm ocean temperatures and a strengthening El Niño helping create favorable conditions for development.Tropical Storms Karina and Lowell are among the latest systems to form over the open Pacific. Both storms are forecast to strengthen as they remain over warm water and could reach hurricane intensity this weekend. Karina is moving northwest across the Eastern Pacific and is expected to continue strengthening while remaining over the open ocean. The storm is not currently expected to pose a direct threat to land.Farther west, Lowell is also forecast to intensify. The system is expected to make several changes in direction before eventually tracking westward this weekend. <img src="https://media.weathernationtv.com/app/uploads/2026/08/Screenshot 2026-08-29 192311-1788053028228.png">While Lowell remains far southeast of Hawaii, its longer-range track will be monitored closely. Some forecast guidance suggests the system could eventually move into the Central Pacific, potentially bringing indirect impacts to Hawaii. However, there remains considerable uncertainty in the forecast at that range.The active pattern may not end with the current systems. There is also another area southwest of Mexico where an area of low pressure could develop this weekend. Atmospheric and oceanic conditions are expected to become favorable for additional organization, giving the disturbance a high chance of tropical development over the next several days.Another disturbance south of Hawaii is also being watched, although its chances of development are currently much lower.<video src="https://media.weathernationtv.com/app/uploads/2026/08/08-29 gfs-1788053109065.mp4" controls="true" width="100%"></video>El Niño Helping Fuel Pacific Activity<img src="https://media.weathernationtv.com/app/uploads/2026/08/Screenshot 2026-08-29 063244-1788006785219.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/2026/08/Screenshot 2026-08-29 063337-1788006834640.png">This year’s El Niño has already strengthened considerably, and forecasts indicate it could become exceptionally strong later this year.While the Pacific remains crowded with tropical systems, many of the current storms are expected to remain over open water. Still, with several additional areas being monitored, the active stretch of the 2026 Pacific hurricane season is far from over.Click here for more on what is happening in the Atlantic Basin:<a target="_blank" rel="noopener noreferrer nofollow" href="https://www.weathernationtv.com/news/atlantic-tropics-watching-several-areas-strong-tropical-wave-next-week"> Atlantic Tropics.</a>

Pacific Tropics Active as El Niño Fuels Two Tropical Storms

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Tropical Storm Dolly formed in the Atlantic on Thursday. Former Invest 96-L was able to create a clearly defined center of circulation Thursday morning with robust convection. The system encountered strong winds which broke the system apart. These remnants have a low chance of developing again, but will still bring heavy rain to the Caribbean and the Bahamas in the days ahead.<video src="https://media.weathernationtv.com/app/uploads/2026/08/08-29 dolly caribean-1788052222941.mp4" controls="true" width="100%"></video>Puerto Rico has seen dire drought conditions and is in desperate need of rain. Still, with dry ground and hilly terrain, flash flooding will be a threat. Interests in the Lesser Antilles, Virgin Islands, and Puerto Rico should stay updated on the forecast in the coming days.<img src="https://media.weathernationtv.com/app/uploads/2026/08/Screenshot 2026-08-29 191032-1788052245028.png"><img src="https://media.weathernationtv.com/app/uploads/2026/08/Screenshot 2026-08-29 054609-1788003975626.png">Another low pressure system in the northern Gulf is being monitored for development, this is an area of investigation denoted Invest 97L. This weak low needs time to get organized but it probably won't have it. Most models expect to the low to move onshore by Monday, which would stop any development that occurs prior. A few heavy thunderstorms are expected on the north side of the low in the central Gulf.<img src="https://media.weathernationtv.com/app/uploads/2026/08/Screenshot 2026-08-29 163312-1788042798983.png"><img src="https://media.weathernationtv.com/app/uploads/2026/08/Screenshot 2026-08-29 190911-1788052270300.png">El Niño has been smothering tropical waves in the Atlantic this summer, with four named storms to date but only 11% of average cyclone energy!<img src="https://media.weathernationtv.com/app/uploads/2026/08/Screenshot 2026-08-29 110319-1788023024504.png">This doesn't mean the rest of the season will be just as quiet, however, as 66% of all hurricane activity in the Atlantic occurs between August 20th and October 10th. The climatological peak of Atlantic Hurricane Season is September 10.<img src="https://media.weathernationtv.com/app/uploads/2026/08/Screenshot 2026-08-27 090839-1787843332378.png">

NHC Monitoring Two Areas in the Atlantic

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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!

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High pressure continues to dominate the Southwest. Extreme Heat Warnings (in pink) still remain in place for cities including Phoenix, Tucson, Yuma, and the Coachella Valley. Heat Advisories (in orange) also remain in place through tonight across the California Coast including Los Angeles and San Diego.<img src="https://media.weathernationtv.com/app/uploads/2026/08/Screenshot 2026-08-29 124202-1788028928893.png">Most of the Southwest, which is normally hot, will have many cities running above average and breaking records through tonight.<img src="https://media.weathernationtv.com/app/uploads/2026/08/Screenshot 2026-08-29 124216-1788028995569.png">By tomorrow, we will start to feel the impacts of the trough that is digging into the PNW and the cooler air associated with it. Los Angeles will see temperatures drop down to the mid to low 80s by midweek.<img src="https://media.weathernationtv.com/app/uploads/2026/08/Screenshot 2026-08-29 124327-1788029016854.png">Stay tuned to WeatherNation for the latest.

Southwest Heatwave Slowing Breaking Down

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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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During El Nino, temperatures across the Eastern Pacific Ocean become warmer, or above normal. For the hurricane season, this means an increase in tropical activity across the Eastern Pacific.<img src="https://media.weathernationtv.com/app/uploads/2026/08/Screenshot 2026-08-26 160007-1787781615977.png">These warmer sea surface temperatures also mean an increase in shark activity for Southern California beaches. Meteorologist Taban Sharifi spoke to Dr. Christopher Lowe, professor of marine biology and director of the Shark Lab at California State University, Long Beach on how El Nino brings changes to marine life along the coast.<div data-youtube-video=""><iframe width="640" height="480" allowfullscreen="false" src="https://www.youtube.com/embed/1FcXy4BQcgA" start="0"></iframe></div>As the waters continue to warm through the Fall, Dr. Lowe talked about the changing species that will be seen across the Southern California waters that are not typically there. This includes hammerhead sharks, whale sharks, and even manta rays. This also includes white sharks. The water farther south will get too warm for the white sharks, that are normally off the Baha of California, and they will begin to push north. Dr. Lowe said, "It's going to push those juvenile white sharks that are normally in Mexico into Southern California waters." This is something they have already started to see happen during July and August of this year, and the numbers of these sharks are increasing. Dr. Lowe said the sharks could reach as far north as Santa Cruz, CA.<img src="https://media.weathernationtv.com/app/uploads/2026/08/Screenshot 2026-08-26 155905-1787784580682.png">There's a sweet spot for water temperatures for these sharks that sits between 64°-72°. Above 82° is when sharks begin to move north. Currently, water temperatures in the Eastern Pacific are significantly warmer than that 82° threshold.A message to beach goers: "Believe it or not, having all those white sharks off that beach might actually keep people safer. Because they are eating sting rays, there are fewer sting rays that might hurt people," said Dr. Lowe.Watch the full interview for more on how close these sharks get to the coastline and how scientists track their behavior.

Rob Bradley

El Nino Pushes Sharks into Southern California Beaches

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Kevin Schneider

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<div class="twitter-tweet" style="display: flex; justify-content: center" data-twitt-post-id="2093066020558872742" src="https://x.com/weathernation/status/2093066020558872742?s=46"></div>Strong storms and flash flooding hammered the I-95 corridor Thursday afternoon. Numerous flash flood warnings were issued to accompany storms with strong downdraft winds. As the front lingers on Friday, expect more storms during the afternoon and evening with potential for strong wind gusts and flash flooding.<img src="https://media.weathernationtv.com/app/uploads/2026/08/Screenshot 2026-08-28 064245-1787920984704.png">While wind is the primary severe weather hazard, a tornado or waterspout is not of the question.<video src="https://media.weathernationtv.com/app/uploads/2026/08/2026-08-28 06-46-58-1787921243269.mp4" controls="true" width="100%"></video>Some areas received 2-6 inches of rain on Thursday, with more on the way today. That means some areas will be more susceptible for flooding to develop again.<img src="https://media.weathernationtv.com/app/uploads/2026/08/Screenshot 2026-08-28 064317-1787921016407.png">We will have more updates and live coverage on this risk all day on Friday, so make sure to tune in to WeatherNation for the latest .

East Coast Storm Threat Lingers Friday

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Heavy Rain in the Upper Midwest

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For the past 48 hours, the rain in the upper Midwest has been almost nonstop. This year, the month of August became the second wettest August in history in Madison, WI. Water rescues and evacuations were needed in other areas in the upper Midwest with some areas receiving over a foot of rain this week.

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Rain is looking to continue this morning and can be expected to be heavy at times. It should start to dissipate after 11 A.M.

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In the next 12 hours, some cities are expected to receive two to three inches of rain. Most of the rain will be occurring before 11 A.M. Flooding is still a concern for the morning.

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Rain will be returning to the Midwest by the beginning of September. Some of this rain is looking to be heavy once again. The Climate Prediction Center predicts the beginning of September to be above average when it comes to precipitation. Stay weather aware throughout the weekend!

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For WeatherNation -Meteorologist <a href="https://media.weathernationtv.com/team/shelly-lindblade/">Shelly Lindblade</a>