Alert archive / Louisiana / River Flood Warnings in 2025

River Flood Warning 21, NWS New Orleans, LA

May 6, 2025Saint Tammany Parish, Louisiana

NWS New Orleans, LA issued this river flood warning at May 6, 2025, 11:21 AM CDT for Saint Tammany Parish, Louisiana. It took effect at May 9, 2025, 1:00 AM CDT. It was in force for 3 days.

The area

The counties it named.

The facts

Issued: May 6, 2025, 11:21 AM CDT (16:21 UTC)
In effect from: May 9, 2025, 1:00 AM CDT
Expired: May 12, 2025, 2:27 AM CDT
In force: 3 days
Issued by: NWS New Orleans, LA
Area: Storm-based polygon
Flood severity: Minor

County Saint Tammany Parish, LA

The radar

The Hammond radar (KHDC), 45 km from the middle of the area, began a volume at 16:21 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 river

Written for the forecast point Bogue Chitto River near Bush (BSHL1). The gauge peaked at 12.26 ft at May 10, 2025, 8:00 AM CDT.

Action stage: 9 ft
Minor stage: 11 ft
Moderate stage: 15 ft
Major stage: 18 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 02492000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river 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 river flood warning went out at May 6, 3:44 AM CDT, 7 hours 37 minutes earlier.

Area forecast discussion, May 6, 3:44 AM CDT, 7 hours 37 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 6, 12:53 AM CDT	Special Marine Warning	LIX		67 min
May 6, 1:51 AM CDT	Special Marine Warning	LIX		54 min
May 6, 2:40 AM CDT	Special Marine Warning	LIX		65 min
May 6, 3:44 AM CDT	Small Craft Advisory	LIX		27 hr
May 6, 11:20 AM CDT	River Flood Warning	LIX	Washington	17 days
May 6, 11:20 AM CDT	River Flood Warning	LIX	Saint Tammany	19 days
May 6, 11:23 AM CDT	River Flood Warning	LIX	Tangipahoa	6 days
May 6, 11:57 AM CDT	Special Weather Statement	LIX	West Baton Rouge	33 min
May 6, 11:59 AM CDT	Severe Thunderstorm Warning	LIX	Iberville	46 min
May 6, 12:04 PM CDT	Severe Thunderstorm Warning	LIX	Pointe Coupee, West Feliciana	26 min
May 6, 12:26 PM CDT	Severe Thunderstorm Warning	LIX	Pointe Coupee, West Feliciana	49 min
May 6, 12:57 PM CDT	Severe Thunderstorm Warning	LIX	Iberville	48 min
May 6, 1:28 PM CDT	Special Weather Statement	LIX	East Baton Rouge	32 min
May 6, 1:41 PM CDT	Severe Thunderstorm Warning	LIX	Iberville, West Baton Rouge	49 min
May 6, 2:30 PM CDT	Severe Thunderstorm Warning	LIX	Ascension, East Baton Rouge, Iberville, Livingston, West Baton Rouge	45 min
May 6, 3:11 PM CDT	Severe Thunderstorm Warning	LIX	Ascension, East Baton Rouge, Livingston	49 min
May 6, 3:48 PM CDT	Severe Thunderstorm Warning	LIX	Livingston, Saint Helena, Tangipahoa	25 min
May 6, 5:31 PM CDT	Severe Thunderstorm Warning	LIX	Livingston, Saint Helena, Tangipahoa	44 min
May 6, 5:35 PM CDT	Special Marine Warning	LIX		55 min
May 6, 5:41 PM CDT	Severe Thunderstorm Warning	LIX	Ascension, Livingston, Saint John the Baptist, Tangipahoa	49 min
May 6, 5:47 PM CDT	Special Weather Statement	LIX	Saint Charles, Saint John the Baptist	43 min
May 6, 6:22 PM CDT	Special Weather Statement	LIX	Washington	23 min
May 6, 11:21 AM CDT	River Flood Warning	LIX	Pike, Walthall	71 hr
May 6, 11:22 AM CDT	River Flood Warning	LIX	Pearl River	64 hr
May 6, 11:22 AM CDT	River Flood Warning	LIX	Pearl River	64 hr
May 6, 4:16 PM CDT	Special Weather Statement	LIX	Amite, Wilkinson	44 min
May 6, 4:48 PM CDT	Severe Thunderstorm Warning	LIX	Amite, Wilkinson	42 min
May 6, 5:19 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LIX	Amite, Pike	41 min
May 6, 5:58 PM CDT	Severe Thunderstorm Warning	LIX	Amite, Pike	18 min

Nearby

River Flood Warnings in Louisiana, 2025 Every river 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; the gauge from the NWS water service and the USGS.