Tracey Anthony

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High pressure has returned to the Southwest. Extreme Heat Warnings (in pink) have been issued for cities including Los Angeles, Phoenix, Las Vegas, Tucson, and Yuma. Heat Advisories (in orange) have been issued across the Inland Empire of California.<img src="https://media.weathernationtv.com/app/uploads/2026/08/Screenshot 2026-08-26 192300-1787793786105.png">We started the week with plenty of triple digits across the Southwest; even Los Angeles has reached 95° or warmer the last 6 days! Most of the Southwest, which is normally hot, will have many cities running above average and breaking records through Saturday. <img src="https://media.weathernationtv.com/app/uploads/2026/08/Screenshot 2024-06-20 201133-1787923915070.png">Until the heat breaks, as this next system approaches, winds will pick up for the coast. Red Flag Warnings in place from LA to the bay area, so the fire risk will continue for areas of the west.<img src="https://media.weathernationtv.com/app/uploads/2026/08/Screenshot 2026-08-28 073027-1787923933336.png">By Sunday we will start to feel the impacts of the trough that is digging into the PNW and the cooler air associated with it. <img src="https://media.weathernationtv.com/app/uploads/2026/08/Screenshot 2026-08-28 072905-1787923991514.png">Stay tuned to WeatherNation for the latest.

Extreme Heat In Los Angeles and the Southwest

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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 .

Rob Bradley

East Coast Storm Threat Lingers Friday

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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.

El Nino Pushes Sharks into Southern California Beaches

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WeatherNation Meteorologists

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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. It will likely stay around tropical storm strength for much of its life cycle, or even weaker. Though the waters of the Atlantic are warm, there is a considerable amount of shear working against Dolly's strengthening. It will likely move through the Northern Lesser Antilles, Virgin Islands and Puerto Rico.<img src="https://media.weathernationtv.com/app/uploads/2026/08/pic4-1787866040898.png">Puerto Rico has seen dire drought conditions and is in desperate need of rain. Hopefully, we can see some decent rainfall out of Dolly for them, without the strong, damaging winds. 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 2026-08-28 063657-1787920639757.png"><img src="https://media.weathernationtv.com/app/uploads/2026/08/Screenshot 2026-08-28 063703-1787920652176.png">El Niño has been smothering tropical waves in the Atlantic this summer, with four named storms to date but only 12% of average cyclone energy! 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">

Dolly Heading Toward the Northeast Caribbean

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Thursday afternoon, two areas of investigation in the Eastern Pacific were determined strong enough and organized enough to be named. Tropical Storms Karina and Lowell are now being tracked as they slowly track west and northwest through the weekend.<img src="https://media.weathernationtv.com/app/uploads/2026/08/RAV_3-1787923416869.png">With unseasonably warm ocean waters in the EPAC, both of these storms will likely become hurricanes on Friday or Saturday. We'll have to watch how close they get to one another to see if they have any impact.Good news is, they are expected to stay away from land for the short term. We will keep an eye on Hawaii later next week to see if any additional rainfall heads their way.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>

El Nino Pushes Sharks into Southern California Beaches

Dolly Heading Toward the Northeast Caribbean

NEW: Karina & Lowell Named in the Eastern Pacific

Extreme Heat In Los Angeles and the Southwest

East Coast Storm Threat Lingers Friday

El Nino Pushes Sharks into Southern California Beaches

Dolly Heading Toward the Northeast Caribbean

NEW: Karina & Lowell Named in the Eastern Pacific

Extreme Heat In Los Angeles and the Southwest

East Coast Storm Threat Lingers Friday

El Nino Pushes Sharks into Southern California Beaches

Dolly Heading Toward the Northeast Caribbean

NEW: Karina & Lowell Named in the Eastern Pacific