Alert archive / Louisiana / Flash Flood Warnings in 2025

Flash Flood Warning 18, NWS New Orleans, LA

April 21, 20254 parishes in Louisiana

NWS New Orleans, LA issued this flash flood warning at Apr 21, 2025, 5:52 PM CDT for 4 parishes in Louisiana. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Apr 21, 2025, 5:52 PM CDT (22:52 UTC)
Expired
Apr 21, 2025, 8:45 PM CDT
In force
3 hr
Issued by
NWS New Orleans, LA
Area
Storm-based polygon
Flood severity
None

Counties East Baton Rouge Parish, LA, East Feliciana Parish, LA, Saint Helena Parish, LA, West Feliciana Parish, LA

The radar

The Hammond radar (KHDC), 69 km from the middle of the area, began a volume at 22:52 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The office that day

Everything else NWS New Orleans, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 21, 12:10 PM CDTAreal Flood AdvisoryLIXJefferson, Orleans2 hr
Apr 21, 1:22 PM CDTSpecial Weather StatementLIXSaint Charles23 min
Apr 21, 1:48 PM CDTAreal Flood AdvisoryLIXJefferson, Orleans, Plaquemines117 min
Apr 21, 2:00 PM CDTSpecial Marine WarningLIX45 min
Apr 21, 2:02 PM CDTSpecial Weather StatementLIXOrleans28 min
Apr 21, 2:23 PM CDTSpecial Weather StatementLIXSaint Helena52 min
Apr 21, 2:31 PM CDTAreal Flood AdvisoryLIXJefferson, Orleans, Saint Bernard119 min
Apr 21, 2:44 PM CDTSpecial Marine WarningLIX61 min
Apr 21, 2:50 PM CDTFlash Flood WarningLIXJefferson, Orleans, Saint Bernard4 hr
Apr 21, 2:54 PM CDTAreal Flood AdvisoryLIXJefferson, Saint Charles3 hr
Apr 21, 3:16 PM CDTFlash Flood WarningLIXJefferson, Saint Charles2 hr
Apr 21, 3:19 PM CDTFlash Flood WarningLIXJefferson, Orleans3 hr
Apr 21, 4:06 PM CDTFlash Flood WarningLIXOrleans, Saint Bernard3 hr
Apr 21, 4:22 PM CDTFlash Flood WarningLIXJefferson, Orleans3 hr
Apr 21, 4:42 PM CDTSpecial Weather StatementLIXEast Feliciana33 min
Apr 21, 5:02 PM CDTAreal Flood AdvisoryLIXEast Baton Rouge, East Feliciana, Livingston, Saint Helena, Tangipahoa, West Feliciana3 hr

Nearby

Flash Flood Warnings in Louisiana, 2025Every flash flood warning in 2025

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.