Alert archive / Texas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 23, NWS Shreveport, LA
NWS Shreveport, LA issued this severe thunderstorm warning at Mar 23, 2021, 12:58 AM CDT for 11 counties in Texas. It was in force for 30 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Mar 23, 2021, 12:58 AM CDT (05:58 UTC)
- Expired
- Mar 23, 2021, 1:28 AM CDT
- In force
- 30 min
- Issued by
- NWS Shreveport, LA
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Camp County, TX, Cass County, TX, Gregg County, TX, Harrison County, TX, Marion County, TX, Morris County, TX, Rusk County, TX, Smith County, TX, Titus County, TX, Upshur County, TX, Wood County, TX
The radar
The Shreveport radar (KSHV), 83 km from the middle of the area, began a volume at 05:58 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 23, 1:10 AM CDT | TSTM WND DMG | Liberty City, Tx, TX | SMALL 1 INCH LIMBS RIPPED OFF TRESS AND SEVERAL SMALL BUSHES UPROOTED. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Shreveport, LA (KSHV), launched 00:00Z, 6.0 hours before the alert went out and 90 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1424 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 160 m²/s²
- 0-3 km storm-relative helicity
- 393 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
864
WUUS54 KSHV 230558
SVRSHV
TXC063-067-183-203-315-343-401-423-449-459-499-230645-
/O.NEW.KSHV.SV.W.0023.210323T0558Z-210323T0645Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Shreveport LA
1258 AM CDT Tue Mar 23 2021
The National Weather Service in Shreveport has issued a
* Severe Thunderstorm Warning for...
Northeastern Smith County in northeastern Texas...
Western Marion County in northeastern Texas...
Southwestern Cass County in northeastern Texas...
Western Harrison County in northeastern Texas...
Northern Rusk County in northeastern Texas...
Southeastern Wood County in northeastern Texas...
Upshur County in northeastern Texas...
Southern Morris County in northeastern Texas...
Southeastern Titus County in northeastern Texas...
Camp County in northeastern Texas...
Gregg County in northeastern Texas...
* Until 145 AM CDT.
* At 1258 AM CDT, severe thunderstorms were located along a line
extending from 8 miles northeast of Hainesville to near Hawkins to
9 miles southwest of Big Sandy, moving northeast at 50 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Longview, Kilgore, White Oak, Gladewater, Gilmer, Pittsburg,
Hallsville, Daingerfield, Hughes Springs, Lone Star, Big Sandy,
Hawkins, Ore City, Clarksville City, East Mountain, Cason, Rocky
Branch, Harleton, Diana and Rosewood.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3319 9453 3292 9444 3236 9444 3237 9446
3239 9448 3239 9449 3236 9449 3236 9523
3263 9522 3286 9533
TIME...MOT...LOC 0558Z 245DEG 42KT 3277 9524 3265 9519 3247 9519
HAIL...0.75IN
WIND...60MPH
$$
441 follow-up statement
646
WWUS54 KSHV 230628 RRA
SVSSHV
Severe Weather Statement
National Weather Service Shreveport LA
128 AM CDT Tue Mar 23 2021
TXC063-067-183-203-315-343-401-423-449-459-499-230638-
/O.CAN.KSHV.SV.W.0023.000000T0000Z-210323T0645Z/
Smith TX-Marion TX-Cass TX-Harrison TX-Rusk TX-Wood TX-Upshur TX-
Morris TX-Titus TX-Camp TX-Gregg TX-
128 AM CDT Tue Mar 23 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN SMITH...WESTERN
MARION...SOUTHWESTERN CASS...WESTERN HARRISON...NORTHERN RUSK...
SOUTHEASTERN WOOD...UPSHUR...SOUTHERN MORRIS...SOUTHEASTERN TITUS...
CAMP AND GREGG COUNTIES IS CANCELLED...
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning has been cancelled. However gusty winds are
still possible with these thunderstorms.
LAT...LON 3319 9453 3292 9444 3236 9444 3237 9446
3239 9448 3239 9449 3236 9449 3236 9523
3263 9522 3286 9533
TIME...MOT...LOC 0625Z 245DEG 42KT 3291 9489 3279 9484 3261 9484
$$
44The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 22, 10:15 PM CDT | Special Weather Statement | SHV | Franklin, Red River, Titus | 30 min |
| Mar 23, 12:18 AM CDT | Severe Thunderstorm Warning | SHV | Cherokee, Rusk, Smith | 42 min |
| Mar 23, 12:33 AM CDT | Special Weather Statement | SHV | Gregg, Upshur | 42 min |
| Mar 23, 1:00 AM CDT | Severe Thunderstorm Warning | SHV | Cherokee, Panola, Rusk, Smith | 28 min |
| Mar 23, 2:55 AM CDT | Special Weather Statement | SHV | Angelina | 50 min |
| Mar 23, 3:22 AM CDT | Special Weather Statement | SHV | Panola | 38 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2021Every severe thunderstorm warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.