Alert archive / Louisiana / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 129, NWS Shreveport, LA
NWS Shreveport, LA issued this severe thunderstorm warning at Apr 24, 2020, 9:53 PM CDT for 8 parishes in Louisiana. It was in force for 52 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
- Apr 24, 2020, 9:53 PM CDT (02:53 UTC)
- Expired
- Apr 24, 2020, 10:45 PM CDT
- In force
- 52 min
- Issued by
- NWS Shreveport, LA
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 70.0 mph
Counties Bienville Parish, LA, De Soto Parish, LA, Grant Parish, LA, Jackson Parish, LA, Natchitoches Parish, LA, Red River Parish, LA, Sabine Parish, LA, Winn Parish, LA
The radar
The Ft Polk radar (KPOE), 89 km from the middle of the area, began a volume at 02:51 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 |
|---|---|---|---|
| Apr 24, 4:49 PM CDT | Tornado Watch | SPC | 7 hr |
| Apr 24, 8:31 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Shreveport, LA (KSHV), launched 00:00Z, 2.9 hours before the alert went out and 87 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
- 319 J/kg
- Mixed-layer CIN
- -165 J/kg
- Mixed-layer LCL
- 1943 m above ground
- 0-6 km bulk shear
- 72 kt
- 0-1 km storm-relative helicity
- 160 m²/s²
- 0-3 km storm-relative helicity
- 350 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 6.1
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 Apr 24, 8:48 PM CDT, 1 hour 5 minutes earlier.
Area forecast discussion, Apr 24, 8:48 PM CDT, 1 hour 5 minutes before
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</html>Hazardous weather outlook, Apr 24, 3:13 PM CDT, 6 hours 40 minutes before
Hazardous Weather Outlook National Weather Service Shreveport LA 313 PM CDT Fri Apr 24 2020 ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077- TXZ096-097-108>112-124>126-136>138-149>153-165>167-251200- 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- 313 PM CDT Fri Apr 24 2020 This Hazardous Weather Outlook is for portions of south central Arkansas, southwest Arkansas, north central Louisiana, northwest Louisiana, southeast Oklahoma, east Texas and northeast Texas. .DAY ONE...This Afternoon and Tonight... Severe thunderstorms are possible late this afternoon through this evening across much of the region. Very large hail, damaging winds, and isolated tornadoes will be possible quickly move east. The threat for severe weather should end by midnight as the storms exit the area. .DAYS TWO THROUGH SEVEN...Saturday through Thursday... Thunderstorms are possible once again Tuesday and Tuesday night areawide ahead of another upper level disturbance and associated cold front. While the threat for severe thunderstorms can not be ruled out, the threat for heavy rainfall will exist as well, which may lead to localized flooding. Any severe weather or flood threat will diminish by Wednesday morning as much drier air spills southeast in the wake of the cold front. .SPOTTER INFORMATION STATEMENT... Activation of emergency management personnel...amateur radio operators...and storm spotters will be needed late this afternoon through this evening. Please relay any information about observed severe weather to the NWS while following all local, state, and CDC guidelines. 09
In the hours before
Local storm report, Apr 24, 9:24 PM CDT, 29 minutes before
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</html>Local storm report, Apr 24, 9:28 PM CDT, 25 minutes before
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</html>Local storm report, Apr 24, 9:32 PM CDT, 21 minutes before
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</html>Local storm report, Apr 24, 9:38 PM CDT, 15 minutes before
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</html>Local storm report, Apr 24, 9:43 PM CDT, 10 minutes before
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</html>Local storm report, Apr 24, 9:47 PM CDT, 6 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 |
|---|---|---|---|---|
| Apr 24, 7:01 PM CDT | Special Weather Statement | SHV | Panola, Rusk | 44 min |
| Apr 24, 7:08 PM CDT | Severe Thunderstorm Warning | SHV | Red River | 67 min |
| Apr 24, 7:14 PM CDT | Special Weather Statement | SHV | Harrison | 46 min |
| Apr 24, 7:40 PM CDT | Tornado Warning | SHV | Franklin, Red River, Titus | 52 min |
| Apr 24, 7:48 PM CDT | Special Weather Statement | SHV | Panola | 42 min |
| Apr 24, 8:02 PM CDT | Severe Thunderstorm Warning | SHV | Harrison | 43 min |
| Apr 24, 8:03 PM CDT | Severe Thunderstorm Warning | SHV | Harrison, Marion | 42 min |
| Apr 24, 8:07 PM CDT | Severe Thunderstorm Warning | SHV | Gregg, Harrison, Panola, Rusk | 38 min |
| Apr 24, 8:10 PM CDT | Severe Thunderstorm Warning | SHV | Cass, Marion | 23 min |
| Apr 24, 8:15 PM CDT | Tornado Warning | SHV | Bowie, Cass, Morris, Red River, Titus | 45 min |
| Apr 24, 8:40 PM CDT | Severe Thunderstorm Warning | SHV | Harrison, Panola | 50 min |
| Apr 24, 8:42 PM CDT | Severe Thunderstorm Warning | SHV | Harrison, Panola | 48 min |
| Apr 24, 8:44 PM CDT | Tornado Warning | SHV | Cass, Marion | 44 min |
| Apr 24, 10:11 PM CDT | Severe Thunderstorm Warning | SHV | Harrison, Marion, Panola | 25 min |
| Apr 24, 7:13 PM CDT | Special Weather Statement | SHV | Caddo | 47 min |
| Apr 24, 7:57 PM CDT | Special Weather Statement | SHV | Bossier, Caddo | 48 min |
| Apr 24, 8:34 PM CDT | Severe Thunderstorm Warning | SHV | Caddo | 41 min |
| Apr 24, 8:37 PM CDT | Severe Thunderstorm Warning | SHV | Claiborne, Webster | 53 min |
| Apr 24, 8:43 PM CDT | Severe Thunderstorm Warning | SHV | Bienville, Bossier, Caddo, Webster | 47 min |
| Apr 24, 9:13 PM CDT | Severe Thunderstorm Warning | SHV | Bossier, Caddo | 62 min |
| Apr 24, 9:17 PM CDT | Severe Thunderstorm Warning | SHV | Bienville, Bossier, Caddo, De Soto, Natchitoches, Red River and 1 more | 43 min |
| Apr 24, 9:24 PM CDT | Severe Thunderstorm Warning | SHV | Bienville, Bossier, Claiborne, Lincoln, Red River, Webster | 51 min |
| Apr 24, 9:41 PM CDT | Severe Thunderstorm Warning | SHV | Bossier, Caddo | 25 min |
| Apr 24, 9:57 PM CDT | Severe Thunderstorm Warning | SHV | Bienville, Claiborne, Lincoln, Webster | 63 min |
| Apr 24, 10:30 PM CDT | Special Weather Statement | SHV | Caldwell, LaSalle, Winn | 45 min |
| Apr 24, 10:42 PM CDT | Severe Thunderstorm Warning | SHV | Bienville, Grant, Jackson, Winn | 63 min |
| Apr 24, 10:52 PM CDT | Special Weather Statement | SHV | De Soto, Red River | 38 min |
| Apr 24, 11:24 PM CDT | Severe Thunderstorm Warning | SHV | Caldwell, Jackson, LaSalle, Winn | 28 min |
| Apr 24, 11:40 PM CDT | Special Weather Statement | SHV | Grant, LaSalle, Winn | 50 min |
| Apr 24, 8:12 PM CDT | Special Weather Statement | SHV | Lafayette, Miller | 48 min |
| Apr 24, 8:47 PM CDT | Severe Thunderstorm Warning | SHV | Columbia, Hempstead, Lafayette, Miller, Nevada | 43 min |
| Apr 24, 10:25 PM CDT | Special Weather Statement | SHV | Howard, Little River, Sevier | 50 min |
Nearby
Severe Thunderstorm Warnings in Louisiana, 2020Every severe thunderstorm warning in 2020
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.