Alert archive / Arkansas / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 173, NWS Shreveport, LA
NWS Shreveport, LA issued this severe thunderstorm warning at May 5, 2020, 5:56 AM CDT for 4 counties in Arkansas. It was in force for 49 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
- May 5, 2020, 5:56 AM CDT (10:56 UTC)
- Expired
- May 5, 2020, 6:45 AM CDT
- In force
- 49 min
- Issued by
- NWS Shreveport, LA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Hempstead County, AR, Howard County, AR, Little River County, AR, Sevier County, AR
The radar
The Western Arkansas radar (KSRX), 160 km from the middle of the area, began a volume at 10:59 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
Springfield, MO (KSGF), launched 00:00Z, 10.9 hours before the alert went out and 336 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
- 135 J/kg
- Mixed-layer CIN
- -464 J/kg
- Mixed-layer LCL
- 494 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 436 m²/s²
- 0-3 km storm-relative helicity
- 495 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 6.7
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 May 5, 5:46 AM CDT, 10 minutes earlier.
Area forecast discussion, May 5, 5:46 AM CDT, 10 minutes before
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</html>Hazardous weather outlook, May 4, 12:01 PM CDT, 17 hours 55 minutes before
Hazardous Weather Outlook National Weather Service Shreveport LA 1201 PM CDT Mon May 4 2020 ARZ060-061-070>073-LAZ001>006-010>014-017>022-TXZ110>112-124>126- 136>138-149>153-165>167-051715- 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-Camp- Morris-Cass-Wood-Upshur-Marion-Smith-Gregg-Harrison-Cherokee-Rusk- Panola-Nacogdoches-Shelby-Angelina-San Augustine- 1201 PM CDT Mon May 4 2020 This Hazardous Weather Outlook is for portions of south central Arkansas, southwest Arkansas, north central Louisiana, northwest Louisiana, east Texas and northeast Texas. .DAY ONE...This Afternoon and Tonight... No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday... A few scattered to widely scattered showers and thunderstorms will be possible as a cold front passes through the area on Tuesday. A few strong storms will be possible but should remain sub-severe. Another round of thunderstorms will be possible on Friday as a stronger cold front will move through the area. At this time, the threat for severe weather appears to be low, but will continue to closely monitor the potential. .SPOTTER INFORMATION STATEMENT... Activation of emergency management personnel, amateur radio operators, and storm spotters will not be needed through tonight. ARZ050-051-059-OKZ077-TXZ096-097-108-109-051715- Sevier-Howard-Little River-McCurtain-Red River-Bowie-Franklin- Titus- 1201 PM CDT Mon May 4 2020 This Hazardous Weather Outlook is for portions of southwest Arkansas, southeast Oklahoma and northeast Texas. .DAY ONE...This Afternoon and Tonight... Isolated strong to possibly severe thunderstorms will be possible for areas north of I-30 early this evening and into the overnight hours. Stronger storms will be capable of producing large hail and damaging winds. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday... Showers and thunderstorms will push out of the area early Tuesday morning as the front advances to the southeast. Another round of thunderstorms will be possible on Friday as a stronger cold front will move through the area. At this time, the threat for severe weather appears to be low, but will continue to closely monitor the potential. .SPOTTER INFORMATION STATEMENT... Activation of emergency management personnel...amateur radio operators...and storm spotters may be needed this evening. Please relay any information about observed severe weather to the NWS while following all local, state, and CDC guidelines. 19
In the hours before
Special weather statement, May 5, 2:34 AM CDT, 3 hours 22 minutes before
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</html>Local storm report, May 5, 3:07 AM CDT, 2 hours 49 minutes before
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</html>Special weather statement, May 5, 3:15 AM CDT, 2 hours 41 minutes before
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</html>Special weather statement, May 5, 5:41 AM CDT, 15 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 |
|---|---|---|---|---|
| May 5, 5:41 AM CDT | Special Weather Statement | SHV | Red River | 64 min |
| May 5, 8:37 AM CDT | Special Weather Statement | SHV | Claiborne | 38 min |
| May 5, 9:58 AM CDT | Special Weather Statement | SHV | Union | 32 min |
| May 5, 6:26 PM CDT | Special Weather Statement | SHV | Natchitoches | 34 min |
| May 5, 1:45 AM CDT | Severe Thunderstorm Warning | SHV | Howard, Sevier | 45 min |
| May 5, 2:28 AM CDT | Severe Thunderstorm Warning | SHV | Howard, Sevier | 35 min |
| May 5, 2:45 AM CDT | Severe Thunderstorm Warning | SHV | Howard, Sevier | 45 min |
| May 5, 3:15 AM CDT | Special Weather Statement | SHV | Sevier | 45 min |
| May 5, 5:00 AM CDT | Severe Thunderstorm Warning | SHV | Sevier | 60 min |
| May 5, 6:45 AM CDT | Special Weather Statement | SHV | Hempstead, Nevada | 60 min |
| May 5, 7:08 AM CDT | Special Weather Statement | SHV | Miller | 37 min |
| May 5, 7:45 AM CDT | Special Weather Statement | SHV | Nevada | 45 min |
| May 5, 7:50 AM CDT | Special Weather Statement | SHV | Columbia, Lafayette | 40 min |
Nearby
Severe Thunderstorm Warnings in Arkansas, 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.