WeatherNation Meteorologists

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Lala continues to trace the Southern coastlines of the Hawaiian Islands. The center of circulation passed just south of the Big Island on Saturday. However, with its proximity, very heavy rain and winds gusting above 80mph still occurred.The Hawaii Department of Transportation reported that parts of Highway 11 on the Big Island were shut down due to flooding. More than 90,000 customers lost power Saturday as a result of the storm. As the storm moves west-northwest, expect conditions to deteriorate for each island through Sunday.<div class="twitter-tweet" style="display: flex; justify-content: center" data-twitt-post-id="2088807962383143316" src="https://x.com/WeatherNation/status/2088807962383143316"></div>Lala's intensity gradually increased through Saturday. Interaction with Hawaii will likely cause subtle weakening into Monday. However, once it moves into the open waters of the Pacific, expect it to return to Hurricane status.<img src="https://media.weathernationtv.com/app/uploads/2026/08/Screenshot 2026-08-16 061614-1786882590749.png">A Hurricane Warning remains in effect for the Big Island. Tropical Storm Warnings are in place for Maui and all other islands.<img src="https://media.weathernationtv.com/app/uploads/2026/08/Screenshot 2026-08-14 214457-1786765516348.png">Tropical storm and hurricane conditions will continue for portions of the state as the system moves through. The higher wind impacts will be felt on the east side of the circulation, as the front right quadrant sees the strongest winds. Tropical storm winds will start spreading west through Sunday. Flooding will likely be the biggest threat with this system, as terrain-enhanced rain could top a foot of accumulation on the Big Island. When heavy rain saturates soils, trees can be toppled more easily. Tropical storm-force winds could have bigger impacts in this scenario.<img src="https://media.weathernationtv.com/app/uploads/2026/08/Screenshot 2026-08-16 042723-1786876055198.png">Beach conditions are also expected to deteriorate as Lala gets closer. Larger swells generated by the system could lead to increasing surf and dangerous conditions along exposed coastlines.&nbsp;High Surf Warnings are in place for most eastern-facing shores.<img src="https://media.weathernationtv.com/app/uploads/2026/08/Screenshot 2026-08-14 215314-1786766061651.png">

Rob Bradley

Lala Impacting Hawaii with Damaging Winds, Flooding

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Kevin Schneider

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<div class="twitter-tweet" style="display: flex; justify-content: center" data-twitt-post-id="2088604118151479464" src="https://x.com/WeatherNation/status/2088604118151479464"></div>The Midwest can't catch a break. After a damaging week of severe thunderstorms and flooding, the pattern of destructive weather continues. Rounds of storms are likely in the same spots through Saturday. This will lead to a risk of flooding across these areas.<h1>FLOODING</h1>The Weather Prediction Center continues with another Moderate risk (Level 3 of 4) of excessive rainfall. Grounds are still saturated and local waterways are crested near record levels in Indiana, so any additional rain could have devastating impacts.<img src="https://media.weathernationtv.com/app/uploads/2026/08/Screenshot 2026-08-16 041955-1786875603026.png">The concern returns to areas like Buchannon, WV where catastrophic flooding has already been an issue. Flash Flood Warnings have already been issued in some areas, and a flood watch covers the rest of the day in the Ohio River Valley. <img src="https://media.weathernationtv.com/app/uploads/2026/08/Screenshot 2026-08-16 042125-1786875718657.png">Storms will steer clockwise around that high through the end of the weekend. An additional 3+ inches will be possible over these waterlogged areas. Models seem to favor areas in Virginia for the heaviest rainfall.<img src="https://media.weathernationtv.com/app/uploads/2026/08/Screenshot 2026-08-16 042231-1786875762330.png">Here is the latest timing of the storms over the next few days. It won't all be afternoon storms as the risk will also be there in these spots for the overnight and early morning hours.<video src="https://media.weathernationtv.com/app/uploads/2026/08/FORECAST-1786837980662.mp4" controls="true" width="100%"></video>

Flooding Risk Lingers for Another Day

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The last few days Mother Nature has turned down the heat somewhat for the Southwest, with the extra clouds and monsoon storms back in the picture. As we start a new work week, high pressure returns westward to the Desert Southwest. An Extreme Heat Warning has been issued for cities including Phoenix, Tucson, and Yuma.<img src="https://media.weathernationtv.com/app/uploads/2026/08/Screenshot 2026-08-16 041704-1786875443493.png">Monday high temperatures will return to the upper 100s and low 110s for the Southwest. So, make sure you stay hydrated and look after the elderly with the high heat returning. <img src="https://media.weathernationtv.com/app/uploads/2026/08/1-1786847315125.png">If you thought the hot temperatures would be a short-term thing, you would be wrong! Hot temperatures are here to stay for end of August.<img src="https://media.weathernationtv.com/app/uploads/2026/08/1-1786847600823.png">

Heat Returning to the Desert This Week

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Last week several rounds of storms moved through areas of the Midwest, producing significant wind gusts and flash flooding. notably for portions of Iowa and Illinois, while Nebraska and Kansas saw their share of impacts as well. Another cold front will arrive shortly after the previous front leaves, sparking a new wave of severe storms, including potential for flash flooding.<h1>Forecast</h1>Wind shear will increase across the Plains and Midwest as a strong trough moves across Canada, while a cold front will cut into the United States. Along the front on Monday and Tuesday, isolated to scattered severe storms are possible. Instability will be somewhat limited, so severe storms are more likely in the afternoons when daytime heating can add energy to the atmosphere.<video src="https://media.weathernationtv.com/app/uploads/2026/08/2026-08-16 04-37-08-1786876876753.mp4" controls="true" width="100%"></video><h1>Outlooks</h1>As the front dips into the Upper-Midwest on Monday, scattered severe storms will be possible from Sioux Falls down to central Nebraska, with isolated severe storms possible from NW Oklahoma though Minnesota. <img src="https://media.weathernationtv.com/app/uploads/2026/08/Screenshot 2026-08-16 042432-1786876706940.png">Wind and hail damage are the primary hazards with these storms, but a few tornadoes are possible as well (below). <img src="https://media.weathernationtv.com/app/uploads/2026/08/Screenshot 2026-08-16 042437-1786876722138.png">As the front swings farther south and east on Tuesday, another round of scattered severe storms is anticipated from Nebraska though western Illinois.<img src="https://media.weathernationtv.com/app/uploads/2026/08/Screenshot 2026-08-16 042442-1786876722138.png">By Tuesday, heavy rain will become a bigger hazard, with scattered flash flooding possible for areas in dark green (below). Soils are saturated from last weeks rain in many of these areas, meaning runoff or flooding will occur more quickly than normal. <img src="https://media.weathernationtv.com/app/uploads/2026/08/Screenshot 2026-08-16 043445-1786876722136.png">

Cold Front Brings Severe Storms Back to the Midwest

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A ridge of high pressure continues to dominate the southern tier of the US, sending storms riding around the ridge through the Midwest and Northeast. Under the high-pressure block, extreme heat and humidity will persist, lasting into next week for some locations.<h2>Central U.S.</h2>The long-lasting heat dome has triggered heat alerts from Missouri through Florida, with extreme heat warnings in effect (pink boxes, below) along with many heat advisories. Highs will soar into the triple digits, feeling 5-15 degrees hotter with the humidity. Make sure to find adequate ways to stay cool!<img src="https://media.weathernationtv.com/app/uploads/2026/08/1-1786845928114.png">Feels-like temperatures remain dangerously hot across the central United States. For cities like Little Rock, our temperatures will feel over 110 degrees.<img src="https://media.weathernationtv.com/app/uploads/2026/08/1-1786845989875.png"><h2>Southeast</h2>Heat alerts are also in place from Mississippi and toward the Atlantic Coast for the dangerous heat index values through the weekend. Many areas will feel like 110-115 in the afternoon. <img src="https://media.weathernationtv.com/app/uploads/2026/08/1-1786846017373.png"><img src="https://media.weathernationtv.com/app/uploads/2026/08/Screenshot 2026-08-15 043558-1786790173846.png">

Heat Returning to the Desert This Week

Cold Front Brings Severe Storms Back to the Midwest

Stifling Heat Slides East This Week

Lala Impacting Hawaii with Damaging Winds, Flooding

Flooding Risk Lingers for Another Day

Heat Returning to the Desert This Week

Cold Front Brings Severe Storms Back to the Midwest

Stifling Heat Slides East This Week

Lala Impacting Hawaii with Damaging Winds, Flooding

Flooding Risk Lingers for Another Day

Heat Returning to the Desert This Week

Cold Front Brings Severe Storms Back to the Midwest

Stifling Heat Slides East This Week