Alert archive / Arkansas / Severe Thunderstorm Warnings in 2023
Severe Thunderstorm Warning 320, NWS Shreveport, LA
NWS Shreveport, LA issued this severe thunderstorm warning at Jun 15, 2023, 4:45 AM CDT for Union County, Arkansas. It was in force for 30 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
- Jun 15, 2023, 4:45 AM CDT (09:45 UTC)
- Expired
- Jun 15, 2023, 5:15 AM CDT
- In force
- 30 min
- Issued by
- NWS Shreveport, LA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Union County, AR
The radar
The Shreveport radar (KSHV), 141 km from the middle of the area, began a volume at 09:47 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, 9.8 hours before the alert went out and 254 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
- 2979 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 1194 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 44 m²/s²
- 0-3 km storm-relative helicity
- 107 m²/s²
- Significant tornado parameter
- 1.5
- Supercell composite
- 8.0
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 Jun 15, 4:01 AM CDT, 44 minutes earlier.
Area forecast discussion, Jun 15, 4:01 AM CDT, 44 minutes before
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</html>Hazardous weather outlook, Jun 14, 9:46 AM CDT, 18 hours 59 minutes before
Hazardous Weather Outlook National Weather Service Shreveport LA 946 AM CDT Wed Jun 14 2023 ARZ050-051-059>061-070>073-LAZ001>006-012>014-OKZ077-TXZ096-097- 108>112-124>126-138-151100- Sevier-Howard-Little River-Hempstead-Nevada-Miller-Lafayette- Columbia-Union-Caddo-Bossier-Webster-Claiborne-Lincoln-Bienville- Jackson-Ouachita-McCurtain-Red River-Bowie-Franklin-Titus-Camp- Morris-Cass-Wood-Upshur-Marion-Harrison- 946 AM CDT Wed Jun 14 2023 ...SEVERE THUNDERSTORM WATCH 290 IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON... This Hazardous Weather Outlook is for south central Arkansas, southwest Arkansas, north central Louisiana, northwest Louisiana, southeast Oklahoma and northeast Texas. .DAY ONE...Today and tonight. Strong to severe thunderstorms are expected again today and through tonight as a stationary front continues to linger across the region. Very large hail 2 inches in diameter or greater and damaging winds will be the primary threats, but an isolated tornado cannot be completely ruled out across parts of the I-20 and I-30 corridors. Finally, areas of heavy rainfall may also pose a threat of localized flash flooding with thunderstorms that train over the same areas, mainly along and north of the I-20 corridor. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. The potential for scattered thunderstorms will persist through the remainder of this week as a frontal boundary is expected to remain nearly stationary and linger across the region. Although the threat of severe weather is expected to gradually diminish by late week, a few strong to marginally severe thunderstorms cannot be ruled out. By this weekend and into early next week, thunderstorm chances will largely decrease while temperatures increase into the mid and upper 90s to near 100 degrees with heat advisory conditions likely. .SPOTTER INFORMATION STATEMENT... Spotter activation will likely be needed today through tonight. LAZ010-011-017>022-TXZ136-137-149>153-165>167-151100- De Soto-Red River-Sabine-Natchitoches-Winn-Grant-Caldwell-La Salle- Smith-Gregg-Cherokee-Rusk-Panola-Nacogdoches-Shelby-Angelina- San Augustine- 946 AM CDT Wed Jun 14 2023 This Hazardous Weather Outlook is for north central Louisiana, northwest Louisiana, east Texas and northeast Texas. .DAY ONE...Today and tonight. Strong to severe thunderstorms are expected again today and through tonight as a stationary front continues to linger across the region. Very large hail 2 inches in diameter or greater and damaging winds will be the primary threats, but an isolated tornado cannot be completely ruled out across parts of the I-20 and I-30 corridors. Finally, areas of heavy rainfall may also pose a threat of localized flash flooding with thunderstorms that train over the same areas, mainly along and north of the I-20 corridor. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. The potential for scattered thunderstorms will persist through the remainder of this week as a frontal boundary is expected to remain nearly stationary and linger across the region. Although the threat of severe weather is expected to gradually diminish by late week, a few strong to marginally severe thunderstorms cannot be ruled out. By this weekend and into early next week, thunderstorm chances will largely decrease while temperatures increase into the mid and upper 90s to near 100 degrees with heat advisory conditions likely. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed later today and tonight. 09
In the hours before
Local storm report, Jun 14, 11:44 PM CDT, 5 hours 1 minute before
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</html>Local storm report, Jun 14, 11:46 PM CDT, 4 hours 59 minutes before
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</html>Special weather statement, Jun 15, 4:02 AM CDT, 43 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 |
|---|---|---|---|---|
| Jun 15, 2:55 AM CDT | Heat Advisory | SHV | Angelina, Cherokee, Gregg, Nacogdoches, Panola, Rusk and 5 more | 17 hr |
| Jun 15, 6:40 AM CDT | Special Weather Statement | SHV | Union | 35 min |
| Jun 15, 4:02 AM CDT | Special Weather Statement | SHV | Union | 58 min |
| Jun 15, 5:03 AM CDT | Special Weather Statement | SHV | Union | 42 min |
Nearby
Severe Thunderstorm Warnings in Arkansas, 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.