Alert archive / Louisiana / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 54, NWS Shreveport, LA
NWS Shreveport, LA issued this severe thunderstorm warning at Apr 6, 2019, 12:39 PM CDT for 4 parishes in Louisiana. It was in force for 66 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 6, 2019, 12:39 PM CDT (17:39 UTC)
- Expired
- Apr 6, 2019, 1:45 PM CDT
- In force
- 66 min
- Issued by
- NWS Shreveport, LA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Caldwell Parish, LA, Grant Parish, LA, LaSalle Parish, LA, Winn Parish, LA
The radar
The Ft Polk radar (KPOE), 94 km from the middle of the area, began a volume at 17:42 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 (KBAD), launched 12:00Z, 5.7 hours before the alert went out and 149 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
- 242 J/kg
- Mixed-layer CIN
- -295 J/kg
- Mixed-layer LCL
- 570 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 179 m²/s²
- 0-3 km storm-relative helicity
- 240 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.3
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 6, 11:49 AM CDT, 50 minutes earlier.
Area forecast discussion, Apr 6, 11:49 AM CDT, 50 minutes before
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</html>Hazardous weather outlook, Apr 6, 12:16 PM CDT, 23 minutes before
Hazardous Weather Outlook...UPDATED National Weather Service Shreveport LA 1216 PM CDT Sat Apr 6 2019 TXZ124>126-136>138-149>153-165>167-071100- Wood-Upshur-Marion-Smith-Gregg-Harrison-Cherokee-Rusk-Panola- Nacogdoches-Shelby-Angelina-San Augustine-Sabine- 1216 PM CDT Sat Apr 6 2019 This Hazardous Weather Outlook is for portions of east Texas and northeast Texas. .DAY ONE...This Afternoon and Tonight... A Tornado Watch is in effect until 6 PM CDT this afternoon. Strong to severe thunderstorms are likely today ahead of a strong upper level trough. The storms are expected to intensify as a warm front moves northward and instability increases. The severe weather threat should gradually diminish this evening. However, strong to severe thunderstorms are expected to redevelop late tonight and into the early morning hours of Sunday over portions of East Texas. During both rounds of severe weather, the primary threats will be isolated tornadoes, damaging winds, and large hail. Locally heavy rainfall may also lead to isolated flash flooding, especially where storms repeatedly move over the same locations. .DAYS TWO THROUGH SEVEN...Sunday through Friday... Strong to severe thunderstorms are likely Sunday and should become widespread by Sunday afternoon. Isolated tornadoes, damaging winds, and large hail will be the primary threats. Locally heavy rainfall may also lead to isolated flash flooding. The threat for severe weather and heavy rainfall should diminish from southwest to northeast Sunday night, but a few isolated thunderstorms may persist until late Monday afternoon. .SPOTTER INFORMATION STATEMENT... Spotter activation will likely be needed this afternoon and again late tonight and into Sunday. ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077- TXZ096-097-108>112-071100- 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- 1216 PM CDT Sat Apr 6 2019 This Hazardous Weather Outlook is for portions of south central Arkansas, southwest Arkansas, north central Louisiana, northwest Louisiana, southeast Oklahoma and northeast Texas. .DAY ONE...This Afternoon and Tonight... Strong to severe thunderstorms are likely today ahead of a strong upper level trough. The storms are expected to intensify as a warm front moves northward and instability increases. The severe weather threat should gradually diminish this evening. However, strong to severe thunderstorms are expected to redevelop late tonight and into the early morning hours of Sunday over portions of East Texas, Southwest Arkansas, and Northwest Louisiana. During both rounds of severe weather, the primary threats will be isolated tornadoes, damaging winds, and large hail. Locally heavy rainfall may also lead to isolated flash flooding, especially where storms repeatedly move over the same locations. .DAYS TWO THROUGH SEVEN...Sunday through Friday... Strong to severe thunderstorms are likely Sunday and should become widespread by Sunday afternoon. Isolated tornadoes, damaging winds, and large hail will be the primary threats. Locally heavy rainfall may also lead to isolated flash flooding. The threat for severe weather and heavy rainfall should diminish from southwest to northeast Sunday night, but a few isolated thunderstorms may persist until late Monday afternoon. Isolated thunderstorms will be possible Thursday afternoon and evening over portions of Southern Arkansas and North Central Louisiana as a cold front moves across the region. .SPOTTER INFORMATION STATEMENT... Spotter activation will likely be needed this afternoon and again late tonight and into Sunday. 09
In the hours before
Special weather statement, Apr 6, 11:23 AM CDT, 1 hour 16 minutes before
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</html>Local storm report, Apr 6, 12:26 PM CDT, 13 minutes before
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</html>Special weather statement, Apr 6, 12:39 PM CDT, 0 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 6, 9:16 AM CDT | Special Weather Statement | SHV | San Augustine | 59 min |
| Apr 6, 9:28 AM CDT | Special Weather Statement | SHV | Sabine | 62 min |
| Apr 6, 10:27 AM CDT | Special Weather Statement | SHV | Sabine | 63 min |
| Apr 6, 12:09 PM CDT | Severe Thunderstorm Warning | SHV | Franklin, Wood | 37 min |
| Apr 6, 12:13 PM CDT | Special Weather Statement | SHV | Gregg, Smith, Upshur | 47 min |
| Apr 6, 12:39 PM CDT | Special Weather Statement | SHV | Sabine | 66 min |
| Apr 6, 12:50 PM CDT | Special Weather Statement | SHV | Bowie, Cass, Morris | 55 min |
| Apr 6, 4:17 PM CDT | Severe Thunderstorm Warning | SHV | Cherokee, Rusk | 58 min |
| Apr 6, 4:23 PM CDT | Tornado Warning | SHV | Cherokee | 22 min |
| Apr 6, 4:41 PM CDT | Tornado Warning | SHV | Cherokee, Rusk | 34 min |
| Apr 6, 6:10 PM CDT | Severe Thunderstorm Warning | SHV | Cherokee, Nacogdoches, Rusk | 65 min |
| Apr 6, 6:23 PM CDT | Tornado Warning | SHV | Cherokee, Nacogdoches, Rusk | 52 min |
| Apr 6, 10:19 AM CDT | Special Weather Statement | SHV | Grant, Winn | 56 min |
| Apr 6, 11:14 AM CDT | Special Weather Statement | SHV | Caddo | 61 min |
| Apr 6, 11:23 AM CDT | Special Weather Statement | SHV | Grant, Natchitoches, Winn | 52 min |
| Apr 6, 11:39 AM CDT | Special Weather Statement | SHV | Bienville, Red River | 66 min |
| Apr 6, 11:44 AM CDT | Severe Thunderstorm Warning | SHV | Grant, LaSalle, Natchitoches, Winn | 61 min |
| Apr 6, 12:18 PM CDT | Special Weather Statement | SHV | Bossier | 57 min |
| Apr 6, 2:50 PM CDT | Special Weather Statement | SHV | Caldwell | 40 min |
| Apr 6, 2:53 PM CDT | Severe Thunderstorm Warning | SHV | Caldwell, LaSalle | 24 min |
| Apr 6, 4:58 PM CDT | Special Weather Statement | SHV | Jackson, Ouachita | 62 min |
| Apr 6, 5:37 PM CDT | Special Weather Statement | SHV | Jackson, Ouachita | 23 min |
| Apr 6, 5:44 PM CDT | Tornado Warning | SHV | Natchitoches, Red River | 16 min |
| Apr 6, 6:28 PM CDT | Special Weather Statement | SHV | Jackson, Ouachita, Winn | 62 min |
| Apr 6, 6:54 PM CDT | Special Weather Statement | SHV | Bienville, Jackson, Lincoln, Red River | 51 min |
| Apr 6, 1:17 PM CDT | Special Weather Statement | SHV | Nevada | 28 min |
| Apr 6, 1:21 PM CDT | Special Weather Statement | SHV | Howard | 39 min |
| Apr 6, 1:29 PM CDT | Severe Thunderstorm Warning | SHV | Howard, Sevier | 26 min |
| Apr 6, 2:59 PM CDT | Special Weather Statement | SHV | Union | 31 min |
Nearby
Severe Thunderstorm Warnings in Louisiana, 2019Every severe thunderstorm warning in 2019
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.