Alert archive / Louisiana / Severe Thunderstorm Warnings in 2023
Severe Thunderstorm Warning 87, NWS Shreveport, LA
NWS Shreveport, LA issued this severe thunderstorm warning at Mar 26, 2023, 3:36 PM CDT for 4 parishes in Louisiana. It was in force for 54 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
- Mar 26, 2023, 3:36 PM CDT (20:36 UTC)
- Expired
- Mar 26, 2023, 4:30 PM CDT
- In force
- 54 min
- Issued by
- NWS Shreveport, LA
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Grant Parish, LA, LaSalle Parish, LA, Natchitoches Parish, LA, Winn Parish, LA
The radar
The Ft Polk radar (KPOE), 73 km from the middle of the area, began a volume at 20:38 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 26, 12:44 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 12:00Z, 8.6 hours before the alert went out and 188 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
- 766 J/kg
- Mixed-layer CIN
- -126 J/kg
- Mixed-layer LCL
- 584 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 152 m²/s²
- 0-3 km storm-relative helicity
- 245 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 3.6
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 Mar 26, 3:09 PM CDT, 27 minutes earlier.
Area forecast discussion, Mar 26, 3:09 PM CDT, 27 minutes before
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</html>Hazardous weather outlook, Mar 26, 5:30 AM CDT, 10 hours 6 minutes before
Hazardous Weather Outlook National Weather Service Shreveport LA 530 AM CDT Sun Mar 26 2023 ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077-TXZ096- 097-108>112-124>126-136>138-149>153-165>167-271030- Sevier-Howard-Little River-Hempstead-Nevada-Miller-Lafayette- Columbia-Union-Caddo-Bossier-Webster-Claiborne-Lincoln-De Soto- Red River-Bienville-Jackson-Ouachita-Sabine-Natchitoches-Winn-Grant- Caldwell-La Salle-McCurtain-Bowie-Franklin-Titus-Camp-Morris-Cass- Wood-Upshur-Marion-Smith-Gregg-Harrison-Cherokee-Rusk-Panola- Nacogdoches-Shelby-Angelina-San Augustine- 530 AM CDT Sun Mar 26 2023 This Hazardous Weather Outlook is for south central Arkansas, southwest Arkansas, north central Louisiana, northwest Louisiana, southeast Oklahoma, east Texas and northeast Texas. .DAY ONE...Today and tonight. Showers and thunderstorms will develop this afternoon across portions of deep east Texas and north central Louisiana. Isolated strong to severe thunderstorms can not be ruled out during the afternoon and early evening hours across these areas, with damaging winds and large hail the main threats. These showers and thunderstorms will diminish through the late evening. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Showers and thunderstorms look to return to the ArkLaTex overnight Monday into Tuesday, and again late in the week. At this time, no specific hazardous weather is expected. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
In the hours before
Special weather statement, Mar 26, 2:31 PM CDT, 1 hour 5 minutes before
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</html>Special weather statement, Mar 26, 3:11 PM CDT, 25 minutes before
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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 |
|---|---|---|---|---|
| Mar 26, 1:00 PM CDT | Special Weather Statement | SHV | Angelina, San Augustine | 45 min |
| Mar 26, 1:05 PM CDT | Severe Thunderstorm Warning | SHV | Angelina, Nacogdoches, San Augustine | 55 min |
| Mar 26, 1:34 PM CDT | Special Weather Statement | SHV | San Augustine | 41 min |
| Mar 26, 2:07 PM CDT | Severe Thunderstorm Warning | SHV | Sabine, San Augustine | 68 min |
| Mar 26, 3:25 PM CDT | Special Weather Statement | SHV | San Augustine | 50 min |
| Mar 26, 4:36 PM CDT | Special Weather Statement | SHV | San Augustine | 39 min |
| Mar 26, 1:21 PM CDT | Special Weather Statement | SHV | De Soto | 39 min |
| Mar 26, 1:50 PM CDT | Severe Thunderstorm Warning | SHV | Bienville, Bossier, Caddo, De Soto, Red River, Webster | 40 min |
| Mar 26, 2:10 PM CDT | Special Weather Statement | SHV | Sabine | 50 min |
| Mar 26, 2:20 PM CDT | Severe Thunderstorm Warning | SHV | Bienville, Jackson, Lincoln | 39 min |
| Mar 26, 2:31 PM CDT | Special Weather Statement | SHV | Red River, Winn | 44 min |
| Mar 26, 2:43 PM CDT | Special Weather Statement | SHV | Natchitoches, Winn | 47 min |
| Mar 26, 2:53 PM CDT | Severe Thunderstorm Warning | SHV | Natchitoches, Sabine | 67 min |
| Mar 26, 3:01 PM CDT | Special Weather Statement | SHV | Lincoln | 44 min |
| Mar 26, 3:11 PM CDT | Special Weather Statement | SHV | Caldwell, Ouachita | 34 min |
| Mar 26, 3:23 PM CDT | Severe Thunderstorm Warning | SHV | Caldwell, Grant, LaSalle, Winn | 67 min |
| Mar 26, 4:08 PM CDT | Special Weather Statement | SHV | Natchitoches, Sabine | 67 min |
| Mar 26, 4:10 PM CDT | Special Weather Statement | SHV | Sabine | 50 min |
| Mar 26, 4:16 PM CDT | Special Weather Statement | SHV | De Soto, Red River | 59 min |
| Mar 26, 4:21 PM CDT | Severe Thunderstorm Warning | SHV | Caldwell, Grant, LaSalle, Winn | 30 min |
| Mar 26, 4:26 PM CDT | Severe Thunderstorm Warning | SHV | Natchitoches, Sabine | 49 min |
| Mar 26, 4:38 PM CDT | Special Weather Statement | SHV | LaSalle | 37 min |
| Mar 26, 4:45 PM CDT | Special Weather Statement | SHV | Lincoln | 45 min |
| Mar 26, 5:13 PM CDT | Severe Thunderstorm Warning | SHV | Grant, Natchitoches, Winn | 62 min |
| Mar 26, 5:17 PM CDT | Special Weather Statement | SHV | Sabine | 43 min |
| Mar 26, 5:27 PM CDT | Special Weather Statement | SHV | Union | 48 min |
| Mar 26, 5:38 PM CDT | Severe Thunderstorm Warning | SHV | Union | 37 min |
| Mar 26, 6:06 PM CDT | Special Weather Statement | SHV | Ouachita | 39 min |
| Mar 26, 6:08 PM CDT | Severe Thunderstorm Warning | SHV | Caldwell, Grant, LaSalle, Winn | 52 min |
| Mar 26, 6:10 PM CDT | Severe Thunderstorm Warning | SHV | Ouachita | 35 min |
| Mar 26, 6:39 PM CDT | Special Weather Statement | SHV | Ouachita, Winn | 51 min |
Nearby
Severe Thunderstorm Warnings in Louisiana, 2023Every severe thunderstorm warning in 2023
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.