Alert archive / Louisiana / Severe Thunderstorm Warnings in 2025
Severe Thunderstorm Warning 412, NWS Shreveport, LA
NWS Shreveport, LA issued this severe thunderstorm warning at Aug 28, 2025, 7:05 PM CDT for Caldwell Parish, LaSalle Parish, Winn Parish, Louisiana. It was in force for 40 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 28, 2025, 7:05 PM CDT (00:05 UTC)
- Expired
- Aug 28, 2025, 7:45 PM CDT
- In force
- 40 min
- Issued by
- NWS Shreveport, LA
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Caldwell Parish, LA, LaSalle Parish, LA, Winn Parish, LA
The radar
The Ft Polk radar (KPOE), 105 km from the middle of the area, began a volume at 00:07 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
Jackson, MS (KJAN), launched 00:00Z, 0.1 hours before the alert went out and 215 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 912 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 43 m²/s²
- 0-3 km storm-relative helicity
- 164 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
What forecasters said that day
The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Aug 28, 6:56 PM CDT, 9 minutes earlier.
Area forecast discussion, Aug 28, 6:56 PM CDT, 9 minutes before
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Local storm report, Aug 28, 5:18 PM CDT, 1 hour 47 minutes before
Preliminary Local Storm Report
National Weather Service Shreveport LA
518 PM CDT Thu Aug 28 2025
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0448 PM Tstm Wnd Dmg 1 NW Lisbon 32.80N 92.87W
08/28/2025 Claiborne LA Law Enforcement
Trees down at the intersection of LA Hwy 2 &
518.
&&
09Local storm report, Aug 28, 5:21 PM CDT, 1 hour 44 minutes before
Preliminary Local Storm Report
National Weather Service Shreveport LA
521 PM CDT Thu Aug 28 2025
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0443 PM Tstm Wnd Dmg 4 WNW Lisbon 32.80N 92.93W
08/28/2025 Claiborne LA Law Enforcement
Trees down at the intersection of LA Hwy 2
and Greer Road.
&&
09Special weather statement, Aug 28, 6:13 PM CDT, 52 minutes before
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Please try again in a few minutes.
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</html>The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 28, 7:07 PM CDT | Special Weather Statement | SHV | Harrison, Panola | 38 min |
| Aug 28, 7:14 PM CDT | Special Weather Statement | SHV | Smith | 46 min |
| Aug 29, 1:35 AM CDT | Special Weather Statement | SHV | Cass | 40 min |
| Aug 29, 5:17 AM CDT | Areal Flood Advisory | SHV | Camp, Cass, Harrison, Marion, Morris, Titus and 1 more | 6 hr |
| Aug 29, 5:41 AM CDT | Areal Flood Advisory | SHV | Harrison, Marion, Panola | 3 hr |
| Aug 29, 6:38 AM CDT | Flash Flood Warning | SHV | Harrison, Panola | 5 hr |
| Aug 29, 6:50 AM CDT | Areal Flood Advisory | SHV | Gregg, Harrison, Marion, Panola, Rusk, Shelby and 1 more | 3 hr |
| Aug 29, 7:32 AM CDT | Flash Flood Warning | SHV | Gregg, Harrison, Marion, Upshur | 6 hr |
| Aug 29, 7:38 AM CDT | Flash Flood Warning | SHV | Panola, Shelby | 5 hr |
| Aug 29, 8:44 AM CDT | Areal Flood Advisory | SHV | Gregg, Nacogdoches, Panola, Rusk, Shelby | 5 hr |
| Aug 29, 11:07 AM CDT | Flash Flood Warning | SHV | Camp | 3 hr |
| Aug 29, 1:24 PM CDT | Areal Flood Advisory | SHV | Gregg, Harrison, Marion, Upshur | 111 min |
| Aug 29, 1:53 PM CDT | Areal Flood Advisory | SHV | Camp | 112 min |
| Aug 28, 7:11 PM CDT | Special Weather Statement | SHV | Bienville | 34 min |
| Aug 28, 7:47 PM CDT | Special Weather Statement | SHV | LaSalle | 43 min |
| Aug 28, 8:14 PM CDT | Special Weather Statement | SHV | Grant, Natchitoches | 61 min |
| Aug 28, 8:33 PM CDT | Special Weather Statement | SHV | LaSalle | 57 min |
| Aug 28, 9:02 PM CDT | Special Weather Statement | SHV | Grant | 43 min |
| Aug 28, 10:27 PM CDT | Special Weather Statement | SHV | Sabine | 48 min |
| Aug 29, 12:29 AM CDT | Areal Flood Advisory | SHV | Sabine | 2 hr |
| Aug 29, 1:21 AM CDT | Special Weather Statement | SHV | Bossier | 39 min |
| Aug 29, 1:37 AM CDT | Special Weather Statement | SHV | Lincoln | 23 min |
| Aug 29, 4:03 AM CDT | Areal Flood Advisory | SHV | Bienville, Bossier, Caddo, De Soto, Red River, Webster | 4 hr |
| Aug 29, 4:20 AM CDT | Special Weather Statement | SHV | Caddo | 25 min |
| Aug 29, 4:34 AM CDT | Flash Flood Warning | SHV | Bienville, Bossier, Caddo, De Soto, Red River, Webster | 6 hr |
| Aug 29, 4:46 AM CDT | Special Weather Statement | SHV | De Soto, Red River | 59 min |
| Aug 29, 5:50 AM CDT | Areal Flood Advisory | SHV | Caldwell, Grant, LaSalle, Natchitoches, Winn | 3 hr |
| Aug 29, 7:19 AM CDT | Flash Flood Warning | SHV | Caldwell, Grant, LaSalle, Winn | 5 hr |
| Aug 29, 12:32 AM CDT | Special Weather Statement | SHV | Lafayette | 43 min |
| Aug 29, 1:06 AM CDT | Special Weather Statement | SHV | Lafayette | 24 min |
Nearby
Severe Thunderstorm Warnings in Louisiana, 2025Every severe thunderstorm 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.