Alert archive / Texas / Special Weather Statements in 2023
Special Weather Statement, NWS Shreveport, LA
NWS Shreveport, LA issued this special weather statement at Apr 28, 2023, 7:21 PM CDT for Nacogdoches County, Texas. It was in force for 24 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Apr 28, 2023, 7:21 PM CDT (00:21 UTC)
- Expired
- Apr 28, 2023, 7:45 PM CDT
- In force
- 24 min
- Issued by
- NWS Shreveport, LA
- Hail
- 0.50 in
- Wind
- 40
County Nacogdoches County, TX
The radar
The Shreveport radar (KSHV), 138 km from the middle of the area, began a volume at 00:25 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
Fort Worth, TX (KFWD), launched 00:00Z, 0.4 hours before the alert went out and 271 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 762 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- -75 m²/s²
- 0-3 km storm-relative helicity
- 255 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.4
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Apr 28, 3:02 PM CDT, 4 hours 19 minutes earlier.
Area forecast discussion, Apr 28, 3:02 PM CDT, 4 hours 19 minutes before
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</html>Hazardous weather outlook, Apr 28, 10:55 AM CDT, 8 hours 26 minutes before
Hazardous Weather Outlook National Weather Service Shreveport LA 1055 AM CDT Fri Apr 28 2023 ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077-TXZ096- 097-108>112-124>126-136>138-149>153-165>167-291200- 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- 1055 AM CDT Fri Apr 28 2023 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...This afternoon and tonight. Showers and thunderstorms will return to portions of Northeast Texas, Southeast Oklahoma and Southwest Arkansas late this afternoon but more likely this evening into the overnight hours. The atmosphere will become unstable enough such that strong to severe thunderstorms, capable of producing large hail and damaging wind gusts will become possible across mainly Northeast Texas. Thunderstorms will likely wait until the late night hours across portions of South Central Arkansas and Northwest and North Central Louisiana but any severe thunderstorms this far east would be isolated at best. While an isolated tornado threat cannot be ruled out across Northeast Texas late this evening, large hail and damaging wind gusts will be the primary threat. In addition, rainfall amounts nearing one inch with isolated higher amounts will be possible across Northeast Texas, Southeast Oklahoma and adjacent counties in Southwest Arkansas. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. Scattered showers and thunderstorms will be possible on Saturday with the upper level storm system itself before the precipitation comes to an end Saturday Night. Dry weather will round out Sunday and much of the new work week. .SPOTTER INFORMATION STATEMENT... Spotter activation will likely be needed late this afternoon into this evening across mainly Northeast Texas. 13
In the hours before
Special weather statement, Apr 28, 6:58 PM CDT, 23 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 28, 7:03 PM CDT | Special Weather Statement | SHV | Red River | 27 min |
| Apr 28, 7:27 PM CDT | Special Weather Statement | SHV | Camp | 48 min |
| Apr 28, 7:31 PM CDT | Special Weather Statement | SHV | Red River | 44 min |
| Apr 28, 8:09 PM CDT | Special Weather Statement | SHV | Angelina | 51 min |
| Apr 28, 8:43 PM CDT | Special Weather Statement | SHV | San Augustine | 32 min |
| Apr 28, 9:25 PM CDT | Special Weather Statement | SHV | Marion | 35 min |
| Apr 28, 9:33 PM CDT | Severe Thunderstorm Warning | SHV | Harrison, Marion | 31 min |
| Apr 28, 10:00 PM CDT | Special Weather Statement | SHV | Marion | 30 min |
| Apr 28, 10:10 PM CDT | Special Weather Statement | SHV | Natchitoches, Red River | 35 min |
| Apr 29, 5:47 AM CDT | Special Weather Statement | SHV | Bossier | 28 min |
| Apr 29, 6:09 AM CDT | Special Weather Statement | SHV | Columbia | 36 min |
| Apr 28, 7:29 PM CDT | Special Weather Statement | SHV | McCurtain | 46 min |
Nearby
Special Weather Statements in Texas, 2023Every special weather statement 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.