National Weather Service United States Department of Commerce

Severe Thunderstorms With Heavy Rain from Great Lakes to Mid-Atlantic; Excessive Heat For Central/Southern U.S. to Mid-Atlantic

Severe thunderstorms are possible today into Sunday across the upper Great Lakes region to the northern Mid-Atlantic. Damaging winds, large hail, and flooding will be the primary threats with these storms. Meanwhile, dangerous heat will continue through Sunday across the central and southern U.S. into the Mid-Atlantic. Read More >

Click a location below for detailed forecast.

Last Map Update: Sat, Jul. 22, 2017 at 2:28:17 pm CDT

National Weather Service Amarillo, TXNational Weather Service Norman, OKNational Weather Service Tulsa, OK
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National Weather Service Shreveport, LA
National Weather Service Austin/San Antonio, TXNational Weather Service Houston/Galveston, TXNational Weather Service Lake Charles, LA

We'll have mostly sunny skies today with highs in the mid 90s east to 103 degrees northwest. When you account for the humidity, it will feel like it is 101 to 109 degrees. A Heat Advisory is in effect along and east of a Bowie to Killeen line. Isolated thunderstorms are possible by late afternoon southeast of a Temple to Athens line. Stay hydrated and don't overexert yourself.
Yes, it's July and it's hot. So you're probably thinking why is the National Weather Service bothering us? Well, it's simple: heat kills. Know the signs of heat exhaustion versus heat stroke. Faint or dizzy with excessive sweating, that's heat exhaustion. Get to a cooler place and drink water. If you or someone you know, is in the heat and suddenly stop sweating, get a throbbing headache and/or nausea, these are signs of heat stroke and it is an emergency situation. Your body is no longer able to cool off and if you don't get immediate care, you can die. If you're suffering from Heat Stroke, you should call 9-1-1. . When you stop sweating, you're in real trouble.
An upper level ridge will build back across the region midweek, bringing some of the hottest weather so far to this summer. High temperatures will be in the mid 90s to around 100 degrees Monday and Tuesday and then will rise into the upper 90s to 105 degrees by Saturday. Heat index values will be in the 98 to 104 degree range Monday, but will reach the 100 to 110 degree range Wednesday through Saturday. There will be low chances of showers and thunderstorms north of a Breckenridge to Cleburne to Centerville line Monday and northeast of a Sherman to Canton line Tuesday. Rain-free weather is then expected for the rest of the week.
There will be a low risk for isolated thunderstorms on Sunday morning mainly across northwestern and southeastern counties. Severe weather is UNLIKELY during this time. The better risk for more numerous thunderstorms will be on Sunday afternoon and evening, especially across the southeastern counties. There will be a risk for strong to severe thunderstorms capable of damaging downburst winds. Isolated instances of minor flooding will be possible due to the slow moving nature of thunderstorms.

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