Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest

An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana tonight. Intense tornadoes, swaths of damaging gusts, and hail in excess of 2 inches in diameter possible. Tropical Storm Arthur will continue to produce strong winds across coastal Upper Texas and Louisiana tonight, as well as potentially life-threatening flooding across southern Louisiana into Mississippi. Read More >

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Last Map Update: Wed, Jun 17, 2026 at 9:06:30 pm CDT

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Potential for Significant Flash Flooding

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Moderate to Major River Flooding

Significant, potentially life-threatening flash flooding is likely tonight through Thursday. The risk for flash flooding will continue into Friday along and north of the I-10/12 corridor. Significant rises to local creeks and rivers are expected.

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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	19:53	Light Rain \ Lightning Observed	10	78	74	87	SE 13G20	-	29.75
Biloxi MS	20:35	Lightning Observed	10	84	77	79	S 12	94 [HI]	29.78
Gulfport MS	19:53	Partly Cloudy	10	83	78	85	S 9	93 [HI]	29.80
Hammond LA	20:35	Light Rain With Thunder In The Vicinity \ Lightning Observed	5	76	75	97	WSW 8	-	29.77
Houma LA	18:47	Overcast	7	82	78	88	SE 15G22	91 [HI]	29.77
McComb MS	20:45	Thunder In The Vicinity \ Mist \ Lightning Observed	2 1/2	75	72	90	SW 16G28	-	29.81
New Orleans LA	20:53	Light Rain \ Cumulonimbus Clouds Observed	7	82	78	87	SSE 22G31	91 [HI]	29.77
Slidell La	20:53	Lightning Observed	10	83	77	82	SSE 13	92 [HI]	29.78

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Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest

Weather Forecast Office New Orleans/Baton Rouge