Louisiana Severe Flash Flood Warning | Effective 06-18-2026 01:46

Headline: 
Flash Flood Warning issued June 18 at 3:46AM CDT until June 18 at 5:30AM CDT by NWS New Orleans LA
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
June 18, 2026 - 1:46am
Expires: 
June 18, 2026 - 3:30am
Description: 
At 346 AM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 5 and 7 inches of rain have fallen. Flash flooding is ongoing or expected to begin shortly. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Radar indicated. IMPACT...Life threatening flash flooding of creeks and streams, urban areas, highways, streets and underpasses. Some locations that will experience flash flooding include... Houma, Thibodaux, Gray, Bayou Cane, Schriever, Raceland, Chackbay and Labadieville.
Instruction: 
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding.
SNM: AVISO DE INUNDACIONES REPENTINAS hasta 5:30 AM CDT. Evite areas inundadas.
Servicio Nacional de Meteorologia: AVISO DE INUNDACIONES REPENTINAS en efecto para esta area hasta las 5:30 AM CDT. Esta es una situacion peligrosa y amenaza la vida. No intente viajar a menos que sea para abandonar un area propensa a inundaciones o bajo una orden de desalojo.
Area Description: 
Assumption, LA; Lafourche, LA; Terrebonne, LA
Forcast Office: 
NWS New Orleans LA