Severe Weather and Flash Flooding From the Upper Midwest to Mid-Atlantic; Heat Continues in the Central and Southeast U.S.

Severe thunderstorms are expected this afternoon and evening across parts of the Upper Midwest to western Great Lakes. Additional severe storms will also be possible in parts of the northern Plains, central Appalachians, and Mid-Atlantic. Extreme heat is expected to intensify across much of the Southeast and Tennessee Valley today, continuing through much of this week. Read More >

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Last Map Update: Sun, Jul 27, 2025 at 6:56:15 pm CDT

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Heat Advisory Sunday

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A heat advisory is in effect from 10 AM to 8 PM CDT, with heat index values up to 110°F. The affected areas include all parishes/counties in southeast Louisiana and southern Mississippi within the County Warning Area, highlighted in orange on the accompanying map. The graphic provides safety recommendations: "Take frequent breaks in the shade or air conditioning," "Drink plenty of water, even if not thirsty," "Check on elderly, ill neighbors, & relatives," and "Bring pets indoors or provide shade & plenty of water." The bottom of the graphic indicates "Elevated Risk of Heat-related Illnesses" and includes the NWS New Orleans/Baton Rouge logo and social media handles.

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Current Weather Observations...

Location	Time (CDT)	Weather	Vsby. (SM)	Temp. (ºF)	Dewpt. (ºF)	Hum. (%)	Wind (mph)	Wind Chill / Heat Index (ºF)	Pres. (in)
Baton Rouge LA	18:15	Heavy Rain With Thunder	5	84	76	76	S 12	93 [HI]	30.13
Biloxi MS	17:55	Clear	10	90	76	63	SW 7	101 [HI]	30.11
Gulfport MS	17:53	Mostly Clear	10	91	76	61	CALM	103 [HI]	30.13
Hammond LA	18:35	Clear	10	91	75	58	SSE 7	102 [HI]	30.13
Houma LA	16:50	Clear	7	89	77	66	SSE 10G17	102 [HI]	30.15
McComb MS	11:04	Thunder In The Vicinity \ Lightning Observed	10	84	76	76	SSW 10G23	93 [HI]	30.11
New Orleans LA	17:53	Mostly Clear	10	92	77	61	S 9	106 [HI]	30.13
Slidell La	17:53	Clear	10	91	75	59		-	30.12

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Severe Weather and Flash Flooding From the Upper Midwest to Mid-Atlantic; Heat Continues in the Central and Southeast U.S.

Weather Forecast Office New Orleans/Baton Rouge