Alert archive / Louisiana / Flash Flood Warnings in 2025

Flash Flood Warning 36, NWS Shreveport, LA

May 2, 2025Ouachita Parish, Union Parish, Louisiana

NWS Shreveport, LA issued this flash flood warning at May 2, 2025, 1:33 PM CDT for Ouachita Parish, Union Parish, Louisiana. It was in force for 6 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: May 2, 2025, 1:33 PM CDT (18:33 UTC)
Expired: May 2, 2025, 8:00 PM CDT
In force: 6 hr
Issued by: NWS Shreveport, LA
Area: Storm-based polygon
Flood severity: None

Counties Ouachita Parish, LA, Union Parish, LA

The radar

The Shreveport radar (KSHV), 149 km from the middle of the area, began a volume at 18:33 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 nearest sounding before it

Shreveport, LA (KSHV), launched 12:00Z, 6.6 hours before the alert went out and 141 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 541 J/kg
Mixed-layer CIN: -225 J/kg
Mixed-layer LCL: 1643 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 80 m²/s²
0-3 km storm-relative helicity: 74 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 Shreveport, LA wrote its last area forecast discussion before this flash flood warning went out at May 2, 12:23 PM CDT, 1 hour 10 minutes earlier.

Area forecast discussion, May 2, 12:23 PM CDT, 1 hour 10 minutes before

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In the hours before

Special weather statement, May 2, 12:46 PM CDT, 47 minutes before

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Special weather statement, May 2, 12:47 PM CDT, 46 minutes before

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Special weather statement, May 2, 1:02 PM CDT, 31 minutes before

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Special weather statement, May 2, 1:06 PM CDT, 27 minutes before

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Local storm report, May 2, 1:15 PM CDT, 18 minutes before

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Special weather statement, May 2, 1:20 PM CDT, 13 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 2, 7:16 AM CDT	River Flood Warning	SHV	Gregg, Harrison, Panola, Rusk	50 hr
May 2, 11:51 AM CDT	Severe Thunderstorm Warning	SHV	Shelby	16 min
May 2, 12:02 PM CDT	Special Weather Statement	SHV	Angelina	58 min
May 2, 12:46 PM CDT	Special Weather Statement	SHV	Shelby	29 min
May 2, 1:02 PM CDT	Special Weather Statement	SHV	San Augustine	28 min
May 2, 1:06 PM CDT	Special Weather Statement	SHV	San Augustine	24 min
May 2, 1:11 PM CDT	Severe Thunderstorm Warning	SHV	Angelina, Sabine, San Augustine	49 min
May 2, 1:56 PM CDT	Severe Thunderstorm Warning	SHV	Sabine, San Augustine, Shelby	49 min
May 2, 2:23 PM CDT	Special Weather Statement	SHV	Shelby	37 min
May 2, 3:34 PM CDT	Flash Flood Warning	SHV	Nacogdoches, Panola, Rusk, Shelby	5 hr
May 2, 4:57 PM CDT	Special Weather Statement	SHV	Angelina, Nacogdoches	33 min
May 2, 5:05 PM CDT	Flash Flood Warning	SHV	Angelina, Nacogdoches	3 hr
May 1, 7:34 PM CDT	Severe Thunderstorm Warning	SHV	Bossier, Webster	56 min
May 1, 8:30 PM CDT	Special Weather Statement	SHV	Claiborne, Webster	60 min
May 2, 10:31 AM CDT	River Flood Warning	SHV	Bienville, Bossier, Red River, Webster	58 hr
May 2, 11:33 AM CDT	Special Weather Statement	SHV	Union	27 min
May 2, 11:39 AM CDT	Severe Thunderstorm Warning	SHV	Lincoln, Ouachita, Union	66 min
May 2, 11:41 AM CDT	Special Weather Statement	SHV	Sabine	34 min
May 2, 12:26 PM CDT	Special Weather Statement	SHV	Bienville	34 min
May 2, 12:47 PM CDT	Special Weather Statement	SHV	Ouachita	43 min
May 2, 1:07 PM CDT	Severe Thunderstorm Warning	SHV	Ouachita	38 min
May 2, 1:20 PM CDT	Special Weather Statement	SHV	Winn	40 min
May 2, 1:25 PM CDT	Severe Thunderstorm Warning	SHV	Ouachita	37 min
May 2, 1:39 PM CDT	Special Weather Statement	SHV	Sabine	36 min
May 2, 1:52 PM CDT	Special Weather Statement	SHV	Ouachita	23 min
May 2, 1:56 PM CDT	Special Weather Statement	SHV	Winn	34 min
May 2, 2:06 PM CDT	Special Weather Statement	SHV	Jackson	24 min
May 2, 2:08 PM CDT	Special Weather Statement	SHV	Natchitoches	52 min
May 2, 2:11 PM CDT	Special Weather Statement	SHV	De Soto	49 min
May 2, 2:26 PM CDT	Severe Thunderstorm Warning	SHV	Natchitoches, Red River, Winn	64 min
May 2, 2:35 PM CDT	Special Weather Statement	SHV	Caldwell	55 min
May 2, 2:45 PM CDT	Severe Thunderstorm Warning	SHV	Bienville, De Soto, Natchitoches, Red River, Sabine	60 min
May 2, 2:58 PM CDT	Special Weather Statement	SHV	Caddo	47 min
May 2, 3:00 PM CDT	Flash Flood Warning	SHV	Caldwell, Jackson, Ouachita, Winn	5 hr
May 2, 3:06 PM CDT	Flash Flood Warning	SHV	Natchitoches, Winn	5 hr
May 2, 3:27 PM CDT	Severe Thunderstorm Warning	SHV	Bienville, Bossier, De Soto, Jackson, Natchitoches, Red River and 2 more	48 min
May 2, 3:37 PM CDT	Severe Thunderstorm Warning	SHV	Bossier, Caddo	38 min
May 2, 3:59 PM CDT	Flash Flood Warning	SHV	Bossier, Caddo, De Soto	3 hr
May 2, 4:06 PM CDT	Severe Thunderstorm Warning	SHV	Bossier, Caddo, Webster	39 min
May 2, 4:07 PM CDT	Severe Thunderstorm Warning	SHV	Bienville, Claiborne, Jackson, Lincoln, Union	32 min
May 2, 4:33 PM CDT	Flash Flood Warning	SHV	Bossier, Webster	3 hr
May 2, 5:56 PM CDT	Special Weather Statement	SHV	LaSalle	34 min

Nearby

Flash Flood Warnings in Louisiana, 2025 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.