Alert archive / Louisiana / Flash Flood Warnings in 2025

Flash Flood Warning 42, NWS New Orleans, LA

July 17, 2025Saint Charles Parish, Saint John the Baptist Parish, Louisiana

NWS New Orleans, LA issued this flash flood warning at Jul 17, 2025, 5:13 PM CDT for Saint Charles Parish, Saint John the Baptist Parish, Louisiana. It was in force for 4 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
Jul 17, 2025, 5:13 PM CDT (22:13 UTC)
Expired
Jul 17, 2025, 9:00 PM CDT
In force
4 hr
Issued by
NWS New Orleans, LA
Area
Storm-based polygon
Flood severity
None

Counties Saint Charles Parish, LA, Saint John the Baptist Parish, LA

The radar

The Hammond radar (KHDC), 56 km from the middle of the area, began a volume at 22:15 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.

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS New Orleans, LA wrote its last area forecast discussion before this flash flood warning went out at Jul 17, 1:34 PM CDT, 3 hours 39 minutes earlier.

Area forecast discussion, Jul 17, 1:34 PM CDT, 3 hours 39 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 16, 7:45 PM CDTSpecial Weather StatementLIXSaint Tammany30 min
Jul 16, 9:06 PM CDTSpecial Weather StatementLIXJefferson39 min
Jul 16, 9:09 PM CDTSpecial Marine WarningLIX66 min
Jul 16, 9:45 PM CDTSpecial Marine WarningLIX45 min
Jul 16, 9:53 PM CDTSpecial Weather StatementLIXLafourche52 min
Jul 16, 10:10 PM CDTSpecial Weather StatementLIXSaint James50 min
Jul 16, 10:36 PM CDTSpecial Weather StatementLIXSaint James39 min
Jul 16, 10:47 PM CDTSpecial Weather StatementLIXLafourche43 min
Jul 16, 10:52 PM CDTSpecial Weather StatementLIXLafourche38 min
Jul 16, 11:13 PM CDTSevere Thunderstorm WarningLIXAssumption, Lafourche, Terrebonne29 min
Jul 16, 11:47 PM CDTSpecial Weather StatementLIXTerrebonne43 min
Jul 17, 12:18 AM CDTSpecial Marine WarningLIX57 min
Jul 17, 1:15 AM CDTSpecial Marine WarningLIX60 min
Jul 17, 1:51 AM CDTAreal Flood AdvisoryLIXLafourche, Terrebonne3 hr
Jul 17, 2:31 AM CDTSpecial Marine WarningLIX119 min
Jul 17, 4:42 AM CDTSpecial Marine WarningLIX2 hr
Jul 17, 4:55 AM CDTAreal Flood AdvisoryLIXAscension, Assumption, East Baton Rouge, East Feliciana, Iberville, Lafourche and 9 more3 hr
Jul 17, 6:39 AM CDTSpecial Marine WarningLIX111 min
Jul 17, 7:50 AM CDTAreal Flood AdvisoryLIXAscension, Assumption, East Baton Rouge, Iberville, Lafourche, Livingston and 6 more3 hr
Jul 17, 8:22 AM CDTSpecial Marine WarningLIX53 min
Jul 17, 8:29 AM CDTSpecial Weather StatementLIXLafourche31 min
Jul 17, 9:11 AM CDTSpecial Marine WarningLIX49 min
Jul 17, 9:46 AM CDTAreal Flood AdvisoryLIXLafourche, Terrebonne119 min
Jul 17, 1:48 PM CDTAreal Flood AdvisoryLIXJefferson, Orleans, Saint Bernard3 hr
Jul 17, 5:00 PM CDTAreal Flood AdvisoryLIXSaint Charles, Saint John the Baptist13 min
Jul 16, 7:16 PM CDTSpecial Weather StatementLIXHancock29 min

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.