Alert archive / Arkansas / Severe Thunderstorm Warnings in 2024
Severe Thunderstorm Warning 290, NWS Shreveport, LA
NWS Shreveport, LA issued this severe thunderstorm warning at Aug 18, 2024, 10:20 PM CDT for Hempstead County, Nevada County, Arkansas. 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 18, 2024, 10:20 PM CDT (03:20 UTC)
- Expired
- Aug 18, 2024, 11:00 PM CDT
- In force
- 40 min
- Issued by
- NWS Shreveport, LA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Hempstead County, AR, Nevada County, AR
The radar
The Shreveport radar (KSHV), 143 km from the middle of the area, began a volume at 03:21 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, 3.3 hours before the alert went out and 353 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
- 2104 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 1832 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 36 m²/s²
- 0-3 km storm-relative helicity
- 129 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 6.3
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 Aug 18, 10:13 PM CDT, 7 minutes earlier.
Area forecast discussion, Aug 18, 10:13 PM CDT, 7 minutes before
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</html>Hazardous weather outlook, Aug 18, 5:50 AM CDT, 16 hours 30 minutes before
Hazardous Weather Outlook National Weather Service Shreveport LA 550 AM CDT Sun Aug 18 2024 ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077-TXZ096- 097-108>112-124>126-136>138-150-151-153-191100- 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-Rusk-Panola-Shelby- 550 AM CDT Sun Aug 18 2024 ...EXCESSIVE HEAT WARNING IN EFFECT FROM 10 AM THIS MORNING TO 8 PM CDT THIS EVENING... 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. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Excessive Heat Warning. Heat and high humidity will result in heat index values up to 109 degrees and possibly higher this afternoon. Please use caution if you must be outside for an extended period of time. A few strong thunderstorms are possible today across portions of northwest Louisiana and adjacent counties in Arkansas and northeast Texas. Damaging winds and large hail will be the primary associated hazard. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Hot conditions with heat index values approaching 110 degrees will remain possible across portions of east and northeast Texas on Monday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. TXZ149-152-165>167-191100- Cherokee-Nacogdoches-Angelina-San Augustine-Sabine- 550 AM CDT Sun Aug 18 2024 ...HEAT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 8 PM CDT THIS EVENING... This Hazardous Weather Outlook is for east Texas and northeast Texas. .DAY ONE...Today and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Heat Advisory. Heat and high humidity will result in heat index values ranging from 105 to 109 degrees this afternoon. Please use caution if you must be outside for an extended period of time. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Hot conditions with heat index values approaching 110 degrees will remain possible across portions of east on Monday. A few strong thunderstorms are possible today across portions of east Texas. Damaging winds and large hail will be the primary associated hazard. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
In the hours before
Special weather statement, Aug 18, 8:51 PM CDT, 1 hour 29 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 |
|---|---|---|---|---|
| Aug 18, 11:45 PM CDT | Special Weather Statement | SHV | Marion | 30 min |
| Aug 19, 12:49 AM CDT | Special Weather Statement | SHV | Panola, Shelby | 56 min |
| Aug 19, 1:47 AM CDT | Special Weather Statement | SHV | Panola, Sabine, San Augustine, Shelby | 73 min |
| Aug 19, 3:30 AM CDT | Special Weather Statement | SHV | Bowie | 60 min |
| Aug 18, 8:56 PM CDT | Special Weather Statement | SHV | Ouachita | 34 min |
| Aug 18, 10:35 PM CDT | Severe Thunderstorm Warning | SHV | Union | 40 min |
| Aug 18, 11:06 PM CDT | Special Weather Statement | SHV | Claiborne, Lincoln, Ouachita, Union | 24 min |
| Aug 18, 11:31 PM CDT | Special Weather Statement | SHV | Bienville, Jackson, Lincoln, Ouachita | 29 min |
| Aug 18, 11:34 PM CDT | Special Weather Statement | SHV | Claiborne | 26 min |
| Aug 18, 11:58 PM CDT | Special Weather Statement | SHV | Caldwell | 32 min |
| Aug 19, 12:00 AM CDT | Special Weather Statement | SHV | Bienville, Jackson, Winn | 30 min |
| Aug 19, 12:22 AM CDT | Special Weather Statement | SHV | De Soto, Red River | 23 min |
| Aug 19, 12:30 AM CDT | Special Weather Statement | SHV | Grant, LaSalle, Natchitoches, Winn | 60 min |
| Aug 19, 1:18 AM CDT | Special Weather Statement | SHV | Grant | 42 min |
| Aug 19, 5:07 AM CDT | Special Weather Statement | SHV | Claiborne, Union, Webster | 68 min |
| Aug 19, 7:21 AM CDT | Special Weather Statement | SHV | Bossier | 54 min |
| Aug 18, 8:51 PM CDT | Special Weather Statement | SHV | Union | 39 min |
| Aug 18, 8:59 PM CDT | Special Weather Statement | SHV | Howard, Sevier | 31 min |
| Aug 18, 9:17 PM CDT | Severe Thunderstorm Warning | SHV | Howard, Sevier | 43 min |
| Aug 18, 9:35 PM CDT | Special Weather Statement | SHV | Howard | 25 min |
| Aug 18, 9:54 PM CDT | Severe Thunderstorm Warning | SHV | Hempstead, Howard | 36 min |
| Aug 18, 10:07 PM CDT | Special Weather Statement | SHV | Nevada | 23 min |
| Aug 18, 10:39 PM CDT | Special Weather Statement | SHV | Columbia, Union | 36 min |
| Aug 18, 11:02 PM CDT | Special Weather Statement | SHV | Columbia, Nevada | 28 min |
Nearby
Severe Thunderstorm Warnings in Arkansas, 2024Every severe thunderstorm warning in 2024
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.