Moke Impacts Hawaii; Severe Thunderstorms and Heavy Rainfall from the Great Basin to the Plains

Heavy rain from Tropical Storm Moke will begin to impact the Big Island today, risking life-threatening flooding and mudslides in windward and southeast areas. Severe thunderstorms are expected across the northern Rockies/Plains and northern Great Basin. Repeated storms and heavy rainfall may cause flash flooding from the Plains into the Lower MS Valley. Dangerous heat persists across the South. Read More >

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Last Map Update: Sun, Aug 23, 2026 at 12:40:36 pm CDT

Watches, Warnings & Advisories

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National Weather Service Austin/San Antonio, TX

National Weather Service Houston/Galveston, TX

National Weather Service Lake Charles, LA

Extreme Heat Warning

Heat Advisory

Air Quality Alert

Hazardous Weather Outlook

Extreme Heat Warning

Dangerously Hot Today

A Hot Week Ahead

Help Prevent Wildfires

Extreme Heat Safety

An Extreme Heat Warning is in effect for North and Central Texas, with high temperatures up to 109° and heat index values from 103° to 113°. Extreme heat is dangerous, especially for those without reliable shelter. Limit outdoor activity during the hottest hours (2 to 7 PM), rest in shade or air conditioning, and drink plenty of water.

A dangerously hot Sunday can be expected as temperatures climb well above 100. Elevated fire concerns will also persist region-wide. A very low (10%) chance for storms exists in East Texas, though most will remain dry.

Exceptionally hot weather will mark the start of the week, with high temperatures reaching well into the triple digits. However, a slight cool-down is expected in the latter half of the week as an upper-level disturbance and weak cold front bring increased cloud cover and low chances of rain.

Here are some helpful tips and resources to help prevent wildfires. With the elevated fire threat persisting, make sure to avoid outdoor activities that could ignite grass fires!

Heat can escalate quickly. Warm temperatures can quickly become dangerous. Heat is one of the most deadly weather hazards - don't underestimate it. Never leave people or pets alone in a car. Drink plenty of water, even if you don't feel thirsty. Wear loose-fitting, light-colored clothing. Spend time in air conditioning and in the shade.