WeatherNation Meteorologists

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At 7:24 pm ET on Tuesday, July 29th, a magnitude 8.8 earthquake struck Russia’s Far East, prompting tsunami alerts for Alaska, Hawaii, and the U.S. West Coast. The largest earthquake ever recorded was a 9.5M quake in Biobio, Chile in 1960.<img src="https://media.weathernationtv.com/app/uploads/2025/07/Screenshot 2025-07-30 142730-1753907262489.png">A couple locations on the West Coast remain under Tsunami Advisories through Crescent City, California.<img src="https://media.weathernationtv.com/app/uploads/2025/07/Screenshot 2025-07-30 142609-1753907175868.png">Below are some of the observed maximum tsunami heights recorded for Hawaii, the West Coast of the United States, and Alaska. <img src="https://media.weathernationtv.com/app/uploads/2025/07/Screenshot 2025-07-30 144338-1753908237553.png">A part of the Northern California coast line was under a Tsunami Warning Wednesday morning as tsunami waves continued to come ashore. Below you can see the observations from Crescent City, CA where wave heights measured 3.7 ft.<img src="https://media.weathernationtv.com/app/uploads/2025/07/Screenshot 2025-07-30 052229-1753874561022.png"><div class="twitter-tweet" style="display: flex; justify-content: center" data-twitt-post-id="1950396558660554830" src="https://x.com/WeatherNation/status/1950396558660554830"></div>Sirens sounded in Hawaii Tuesday evening every hour from when the Tsunami Warning was issued until the first waves impacted around 7:17 pm local time. Maximum amplitude of the waves reached nearly six feet in Kahului. For more on evacuation zones in Hawaii, see this<a target="_blank" rel="noopener noreferrer nofollow" href="https://static.pdc.org/tsunami/index.html?fbclid=IwY2xjawL2Uj5leHRuA2FlbQIxMQABHjZTTPWnQRd1wGqZ9g_HvYaTOt4HLmXa7dBAhOLV9sKEfw84BLS7cE7CgrJn_aem_92Fax-jvYytTZm5riEe0ig"> website.</a><img src="https://media.weathernationtv.com/app/uploads/2025/07/Screenshot 2025-07-30 053800-1753875555241.png"><div class="twitter-tweet" style="display: flex; justify-content: center" data-twitt-post-id="1950483958728438027" src="https://x.com/CivilDefenseHI/status/1950483958728438027"></div><a target="_blank" rel="noopener noreferrer nofollow" href="https://www.tsunami.gov/">The Pacific Tsunami Warning Center</a> said the impacts would be on a global scale, with waves of nearly 3 meters (~12 feet) possible along some coasts of Russia and Ecuador.&nbsp;The Tsunami Warning Center has broken down the potential hazards and public action needed to take based on the level of alerts. When a Tsunami warning is issued, you must move to higher ground or inland, as dangerous coastal flooding and powerful currents are possible.<img src="https://media.weathernationtv.com/app/uploads/2025/07/ea9d0de5-6816-43ff-b872-1f6a923e9edd-1753846260455.jpg">The quake’s preliminary rating of 8.0 was later bumped up to an 8.8, making it one of the highest magnitude earthquakes in recorded history.&nbsp;<img src="https://media.weathernationtv.com/app/uploads/2025/07/ezgif-4fd1f2bd3d959c-1753893497771.gif">Russia’s Tass news agency reported that many ran into the streets as damage started to occur to homes and other buildings, as they noticeably swayed under the earthquake's power. &nbsp;Earlier in July, five power quakes – the largest with a magnitude of 7.4 -- struck in the same area near Kamchatka. &nbsp;

Alana Cameron

Tsunami Impacts Hawaii, Alaska, West Coast After Russia Earthquake

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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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NORTHEAST - Record high temperatures broke in the northeast Wednesday afternoon, including Islip, Laguardia, Atlantic City, and Bridgeport.<img src="https://media.weathernationtv.com/app/uploads/2025/07/Screenshot 2025-07-30 191941-1753924917036.png">The intense high temperatures will relax as we head into Thursday due to a cold front coming in. The Storm Prediction Center has dropped the overnight severe risk, but brings it back for Thursday at a marginal level (1 out of 5).<img src="https://media.weathernationtv.com/app/uploads/2025/07/Screenshot 2025-07-30 192256-1753925014268.png">On Thursday, the SPC has issued a MARGINAL (level 1 out of 5) risk for severe storms for Washington DC, Philadelphia, PA, and Baltimore, MD.<img src="https://media.weathernationtv.com/app/uploads/2025/07/Screenshot 2025-07-30 192510-1753925117755.png">The timing of these storms will follow the front, but as surface temperatures rise in the afternoon, the threat for strong thunderstorms will be greatest.<video src="https://media.weathernationtv.com/app/uploads/2025/07/07-30_rne bams18z-1753925129241.mp4" controls="true" width="100%"></video><h3>Flooding Potential</h3>The Weather Prediction Center has upgraded the risk for flooding rain on Thursday. We are now at a MODERATE (level 3 out of 4) potential for flash flooding.<img src="https://media.weathernationtv.com/app/uploads/2025/07/Screenshot 2025-07-30 184714-1753925240960.png">Forecast models are highlighting over 3-5" of rainfall through Thursday night in these areas. According to the WPC, some localized maxima could even approach 8",<img src="https://media.weathernationtv.com/app/uploads/2025/07/Screenshot 2025-07-30 184721-1753925299783.png">

Northeast: From High Heat to Flooding Concerns

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Kevin Schneider

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The Dog Days of Summer might get told to heel by the end of the week. If your eyes lit up reading that sentence, I'm with you. Each one of these stretches of heat seems to take longer than the last to subside. Cities will see a dramatic jump in temperatures! On Tuesday, Omaha hit 97° with a heat index of 111°, and for the rest of the week, a high of the upper 70s. Omaha normally averages a high of 88°. Chicago will go from the upper 80s to the 70s.<img src="https://media.weathernationtv.com/app/uploads/2025/07/Screenshot 2025-07-30 180019-1753920031553.png"><img src="https://media.weathernationtv.com/app/uploads/2025/07/Screenshot 2025-07-30 180025-1753920037264.png"><img src="https://media.weathernationtv.com/app/uploads/2025/07/Screenshot 2025-07-30 105140-1753894312601.png">A strong cold front delivers a 20-degree temperature drop! Not to mention a massive drop in humidity. Dewpoints drop from the 70s into the 40s.<video src="https://media.weathernationtv.com/app/uploads/2025/07/dews-1753925741326.mp4" controls="true" width="100%"></video>The August temperature outlook looks to warm back up across the central U.S. But for the West, confidence in below average temperatures remains.<img src="https://media.weathernationtv.com/app/uploads/2025/07/Screenshot 2025-07-30 180049-1753920055187.png">Stay with WeatherNation for the latest.

Who's Ready for a Cold Front?

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The Pacific is looking more active. Iona has started to downgrade after becoming a major hurricane, and Keli is now a remnant low.<h1>Pacific Basins</h1>Iona strengthened into a Category 3 hurricane Tuesday morning, with sustained winds of 125 mph, but has since weakened to a tropical storm. Since the storm formed west of 140°W, it was named by the seldom-used Central Pacific Hurricane Center. Another tropical wave just behind Iona has a high chance of developing.<img src="https://media.weathernationtv.com/app/uploads/2025/07/Screenshot 2025-07-30 193005-1753925420243.png">Iona is expected to move west and not expected to bring any direct impacts to the Hawaiian Islands.<img src="https://media.weathernationtv.com/app/uploads/2025/07/Screenshot 2025-07-30 193011-1753925439245.png">The National Hurricane Center is also monitoring three other tropical waves in the Eastern Pacific. It is still too early to determine if any will pose a potential threat to Mexico or the U.S.<img src="https://media.weathernationtv.com/app/uploads/2025/07/Screenshot 2025-07-30 175714-1753919901380.png"><h1>Why Has the Atlantic Been So "Quiet"?</h1>Several factors are contributing to the current lull in tropical activity. One major factor is increased wind shear. Additionally, large-scale atmospheric disruptions—such as a displaced Hadley cell—have resulted in more sinking air over the tropics, which suppresses storm formation. Saharan dust and slightly cooler ocean temperatures in some areas are also playing a role.<h2>Saharan Dust</h2>Forecast models show dust plumes from Africa failing to make it across the Atlantic. This is significant because tropical systems thrive on moisture, and Saharan dust can dry out the atmosphere. Currently, you can see dust trailing behind the area of low pressure that recently moved into the Gulf.<video src="https://media.weathernationtv.com/app/uploads/2025/07/saharan dust-1753925492726.mp4" controls="true" width="100%"></video><h2>Ocean Temperatures</h2>In what is known as the Main Development Region (MDR), sea surface temperatures have been a little cooler than the record-breaking pace they've been on the last two seasons (23' &amp; 24'). Tropical systems typically need sea surface temperatures of 80° at a depth of 150 ft for tropical formation. Currently, in the MDR, our temperatures are in the high 70s. We are slowly seeing some SSTs climbing to around 80°.<img src="https://media.weathernationtv.com/app/uploads/2025/07/Screenshot 2025-07-28 082413-1753712658733.png">In fact, a lot of the season, in comparison to last year and the year before, has been a bit cooler. However, if you look at the numbers, it's been hovering around normal.<img src="https://media.weathernationtv.com/app/uploads/2025/07/Screenshot 2025-07-22 142616-1753216233169.png">So what is actually normal? If we look only at the number of storms, it appears we're ahead of schedule. However, accumulated cyclone energy (ACE) in the Atlantic is less than 20% of normal for this point in the season.<img src="https://media.weathernationtv.com/app/uploads/2025/07/Screenshot 2025-07-22 143043-1753216287218.png"><h1>Looking Ahead</h1>This early in the season, we're still trend spotting. Without a persistent El Niño setup to bring additional shear, we watch the water temperatures. In the Main Development Region, waters had been trending cooler - not anymore. Over the past few weeks, a noticeable spike in Ocean Heat Content has caused those temperatures through the column to average. Will this lead to a tropical wave developing into an organized system this week? It might, but the hostile conditions in the Atlantic won't give it much time, so the odds are not looking great.<img src="https://media.weathernationtv.com/app/uploads/2025/07/Screenshot 2025-07-29 135539-1753819091494.png">

Pacific Tropics Remains Active

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Originally born in Spokane, Washington,  Jackie's Dad was in the Air Force which led her to a life of travel. She has lived in Wichita, Okinawa, Japan, Baltimore, New Jersey, Indiana and South Carolina.  After graduating from Kadena High School, in Okinawa Japan, she got a full basketball scholarship to Coppin State College. On the court she was a 4-year starter and reached over 1000 points in her basketball career. She was also named Athlete of the Year for the whole university in 2002. Off the court, she earned a degree in Broadcast Production/English.

After college, she landed a job as a radio personality. Jackie went on to have a successful career for 12 years working at KXLY broadcast center. While on the radio, she decided to change career. Jackie went back to school, graduating from the Mississippi State Meteorology Broadcast Program. From snow, to tornadoes, to hurricanes, she has had experience forecasting all these events.

Jackie Brown

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The plains have had an active summer with severe storms, and in the past 24 hours, things were busy once again. Damaging winds, hail, and flooding were all reported. It was active today, but things are calming down overnight.<h1>OVERNIGHT</h1>The Storm Prediction Center has issued a marginal risk for severe storms overnight for a small portion of Kansas, including the cities of Salina and Wichita. The main threat with any severe storms that develop will be damaging winds and hail. For the rest of the plains and Midwest, there is a general risk of thunderstorms overnight with a low severe threat.<h1><img src="https://media.weathernationtv.com/app/uploads/2025/07/MARGINAL RISK -1753924763494.png">OVERNIGHT</h1>As the low lingers, strong to severe storms with heavy rain will be possible in eastern Kansas overnight. Precipitation will become more limited on Thursday morning for Kansas, Missouri, and Illinois.<video src="https://media.weathernationtv.com/app/uploads/2025/07/low presurejejeje-1753925421627.mp4" controls="true" width="100%"></video><h1>Flooding</h1>Watch for isolated to scattered flooding threats over the next few days as these storms continue to move through the region. The Weather Prediction Center has this region under a level 2 (SLIGHT) risk for flooding for at least the next two days.<img src="https://media.weathernationtv.com/app/uploads/2025/07/Screenshot 2025-07-30 135203-1753905127832.png">There are isolated to scattered risks for flooding through tonight.<img src="https://media.weathernationtv.com/app/uploads/2025/07/Screenshot 2025-07-30 135220-1753905144957.png">

Storms Wrapping Up In The Plains

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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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Unusual and intense heat and humidity have settled over the Middle Mississippi and Ohio Valleys and are expected to persist. The Heat Risk for much of the country is red, which is a major level of heat risk. There are even many areas of purple, which is the highest level of heat danger: Extreme. These locations need to limit time outdoors, stay hydrated, and check on your neighbors.<img src="https://media.weathernationtv.com/app/uploads/2025/07/Screenshot 2025-07-29 134308-1753818201812.png"><h1>Southeast</h1>Tampa, Florida, broke an all-time record high on Sunday, July 27th. Reaching 100° beats out the old record of 99° set on June 26, 2020. Tuesday, Tampa broke the all-time record for the highest heat index recorded by hitting 119°. When you're breaking all-time records in FLORIDA, that's how you know how hot it truly is.<img src="https://media.weathernationtv.com/app/uploads/2025/07/Screenshot 2025-07-29 161143-1753827107280.png">Heat alerts continue across the Southeast, with Heat Risk levels at their highest in the country. Most of the southeast is at extreme Heat Risk through Wednesday afternoon, with heat index values still expected to be near 110°.<img src="https://media.weathernationtv.com/app/uploads/2025/07/high vsss-1753893583733.png">These conditions are particularly dangerous for vulnerable populations such as the elderly, children, outdoor workers, and those without access to reliable air conditioning or hydration.&nbsp;<h1>Mid South</h1>Heat alerts are expected to continue across parts of the Gulf Coast and Mississippi River Valley. Just like parts of the Southeast, heat index values are going to climb to over dangerous levels near 115 degrees. There is likely to be some relief from the heat in these areas as thunderstorm chances increase mid-week.<img src="https://media.weathernationtv.com/app/uploads/2025/07/heattttt -1753893455049.png"><img src="https://media.weathernationtv.com/app/uploads/2025/07/todayaaaa-1753893518399.png"><h1>Northeast</h1>We even have heat advisories in the northeastern U.S, in particular, New England. Feels like temperatures here are likely to rise to 95-100°F through Wednesday before our next trough moves in.<img src="https://media.weathernationtv.com/app/uploads/2025/07/toddsss-1753893647902.png">Several records were broken on Tuesday, and there will likely be more records to add to the list before the day is over.<img src="https://media.weathernationtv.com/app/uploads/2025/07/Screenshot 2025-07-29 161427-1753827291973.png">The heat index values will be in the triple digits for cities like Philadelphia and New York.<img src="https://media.weathernationtv.com/app/uploads/2025/07/todayshshshs-1753893718276.png">Tune into WeatherNation for more top weather headlines.

Millions of Americans Under Heat Alerts

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Yep you read that right. The standing water from recent rains along with the water pulled out of the ground by stalks of corn can help make hot afternoons worse. Don't believe us? The National Weather Service follows this closely in the months of July and August, as the corn matures.READ MORE: <a target="_blank" rel="noopener noreferrer nofollow" href="https://www.weathernationtv.com/news/what-exactly-is-corn-sweat">All About Corn Sweat</a><div data-youtube-video=""><iframe width="640" height="480" allowfullscreen="false" src="https://www.youtube.com/embed/pyOT3C-_FHY" start="0"></iframe></div>Just tacking on a few degrees on the dew point temperature can make a huge difference! Some localized areas could sneak into the upper 70's and low 80's thanks to the corn. Imagine a 5% increase in the humidity.<img src="https://media.weathernationtv.com/app/uploads/2025/07/Screenshot 2025-07-22 104736-1753203165516.png">That can jump the Heat Index by 5° if you're hot enough! It makes a difference after a while.<img src="https://media.weathernationtv.com/app/uploads/2025/07/Screenshot 2025-07-22 104925-1753203019827.png">As with any sort of heat-related danger, it comes down to preparation - drinking plenty of water, and taking plenty of breaks. Be sure to check on your neighbors, even if they are a few miles away!

Rob Bradley

"Sweating" Corn Can Ramp Up Humidity in the Midwest

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Very busy weather is happening in the Pacific and it could get even busier in the next few days.  We already have Tropical Storm Miriam and Tropical Storm Norman...could Olivia be next?  Here is the very latest.
<h1>Pacific Tropical Outlook</h1>
<img class="alignnone wp-image-96196 size-full" src="https://media.weathernationtv.com/app/uploads/2018/08/7day2-15.jpg" alt="" width="1920" height="1080" />

Here is the latest overview of the Pacific.  We have Tropical Storm Miriam located 1165 miles from Hilo, Hawaii.  We have Tropical Storm Norman located 480 miles southwest of southern Baja California.  Then we have a tropical wave located off the southern coast of Mexico. At the moment this wave is very disorganized, but there are good indications that a low pressure system could form in the coming days and this could potentially become Olivia in the next 5 days.
<h1>Tropical Storm Miriam</h1>
<img class="alignnone wp-image-96206 size-full" src="https://media.weathernationtv.com/app/uploads/2018/08/7day2-16.jpg" alt="" width="1920" height="1080" />

<img class="alignnone wp-image-96207 size-full" src="https://media.weathernationtv.com/app/uploads/2018/08/7day3-14.jpg" alt="" width="1920" height="1080" />

The latest forecast track of Miriam keeps it well east of Hawaii.  A change in direction from west to northwest should start to develop by Wednesday afternoon.
<h1>Tropical Storm Norman</h1>
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<img class="alignnone wp-image-96205 size-full" src="https://media.weathernationtv.com/app/uploads/2018/08/bad-10.jpg" alt="" width="1920" height="1080" />

Right now Norman is not a threat to land, but seeing as by early next week it could be Category 2 Hurricane and moving west further into the Pacific.  Still too far out to determine if Norman will get near Hawaii.

Keep checking with <a href="https://twitter.com/WeatherNation">WeatherNation</a> for all your tropical updates.

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Very Active Tropical Weather in the Pacific

Pacific Tropical Outlook

Tropical Storm Miriam

Tropical Storm Norman

Tsunami Impacts Hawaii, Alaska, West Coast After Russia Earthquake

At 7:24 pm ET on Tuesday, July 29th, a magnit

Northeast: From High Heat to Flooding Concerns

NORTHEAST - Record high temperatures broke in

Who's Ready for a Cold Front?

The Dog Days of Summer might get told to heel

Pacific Tropics Remains Active

The Pacific is looking more active. Iona has

Storms Wrapping Up In The Plains

The plains have had an active summer with sev

Millions of Americans Under Heat Alerts

Unusual and intense heat and humidity have se

"Sweating" Corn Can Ramp Up Humidity in the Midwest

Yep you read that right. The standing water f