Alert archive / Texas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 14, NWS Shreveport, LA
NWS Shreveport, LA issued this severe thunderstorm warning at Mar 17, 2021, 7:43 AM CDT for 5 counties in Texas. It was in force for 62 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 17, 2021, 7:43 AM CDT (12:43 UTC)
- Expired
- Mar 17, 2021, 8:45 AM CDT
- In force
- 62 min
- Issued by
- NWS Shreveport, LA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 70.0 mph
Counties Cherokee County, TX, Nacogdoches County, TX, Panola County, TX, Rusk County, TX, Smith County, TX
The radar
The Shreveport radar (KSHV), 145 km from the middle of the area, began a volume at 12:45 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 17, 8:20 AM CDT | HAIL 0.7 | Henderson, TX | PEA TO DIME SIZE HAIL IN HENDERSON. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 17, 4:37 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Shreveport, LA (KSHV), launched 12:00Z, 0.7 hours before the alert went out and 154 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
- 1417 J/kg
- Mixed-layer CIN
- -55 J/kg
- Mixed-layer LCL
- 682 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 328 m²/s²
- 0-3 km storm-relative helicity
- 340 m²/s²
- Significant tornado parameter
- 2.7
- Supercell composite
- 14.5
The text
As transmitted.
130
WUUS54 KSHV 171243
SVRSHV
TXC073-347-365-401-423-171345-
/O.NEW.KSHV.SV.W.0014.210317T1243Z-210317T1345Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Shreveport LA
743 AM CDT Wed Mar 17 2021
The National Weather Service in Shreveport has issued a
* Severe Thunderstorm Warning for...
Southeastern Smith County in northeastern Texas...
Southwestern Panola County in northeastern Texas...
Rusk County in northeastern Texas...
Northwestern Nacogdoches County in eastern Texas...
Cherokee County in northeastern Texas...
* Until 845 AM CDT.
* At 743 AM CDT, severe thunderstorms were located along a line
extending from near Troup to near Jacksonville to 8 miles south of
Maydelle, moving east at 30 mph.
HAZARD...70 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect considerable
tree damage. Wind damage is also likely to mobile homes,
roofs, and outbuildings.
* Locations impacted include...
Jacksonville, Henderson, Rusk, Bullard, Troup, Beckville, Ponta,
Pinehill, New Salem, Trawick, Mount Selman, Sacul, Mixon,
Turnertown, Reese, Minden, Maydelle, New Summerfield, Cushing and
Mount Enterprise.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3203 9541 3214 9532 3227 9435 3205 9452
3173 9469 3172 9534 3174 9533 3173 9537
3175 9536 3176 9540 3182 9540 3185 9544
3188 9543 3190 9544 3192 9542 3194 9544
TIME...MOT...LOC 1243Z 262DEG 26KT 3214 9517 3195 9519 3168 9533
HAIL...1.00IN
WIND...70MPH
$$
093 follow-up statements
552
WWUS54 KSHV 171301
SVSSHV
Severe Weather Statement
National Weather Service Shreveport LA
801 AM CDT Wed Mar 17 2021
TXC073-347-365-401-423-171345-
/O.CON.KSHV.SV.W.0014.000000T0000Z-210317T1345Z/
Smith TX-Panola TX-Rusk TX-Nacogdoches TX-Cherokee TX-
801 AM CDT Wed Mar 17 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 AM CDT
FOR SOUTHEASTERN SMITH...SOUTHWESTERN PANOLA...RUSK...NORTHWESTERN
NACOGDOCHES AND NORTHERN CHEROKEE COUNTIES...
At 801 AM CDT, severe thunderstorms were located along a line
extending from Turnertown to New Salem to near Rusk, moving east at
35 mph.
HAZARD...70 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect considerable
tree damage. Wind damage is also likely to mobile homes,
roofs, and outbuildings.
Locations impacted include...
Jacksonville, Henderson, Rusk, Troup, Beckville, Ponta, Pinehill, New
Salem, Trawick, Sacul, Mixon, Turnertown, Minden, Maydelle, New
Summerfield, Cushing, Mount Enterprise, Gallatin, Reklaw and
Fairplay.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3175 9538 3198 9531 3215 9524 3227 9435
3205 9452 3173 9469 3172 9534 3174 9533
3173 9537 3175 9536
TIME...MOT...LOC 1301Z 269DEG 30KT 3216 9495 3191 9497 3172 9515
HAIL...1.00IN
WIND...70MPH
$$
09739
WWUS54 KSHV 171321
SVSSHV
Severe Weather Statement
National Weather Service Shreveport LA
821 AM CDT Wed Mar 17 2021
TXC423-171331-
/O.CAN.KSHV.SV.W.0014.000000T0000Z-210317T1345Z/
Smith TX-
821 AM CDT Wed Mar 17 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN SMITH COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 1000 AM CDT for
northeastern Texas.
LAT...LON 3172 9524 3197 9510 3206 9498 3219 9495
3227 9435 3205 9452 3173 9469
TIME...MOT...LOC 1321Z 260DEG 25KT 3219 9471 3193 9482 3174 9499
$$
TXC073-347-365-401-171345-
/O.CON.KSHV.SV.W.0014.000000T0000Z-210317T1345Z/
Panola TX-Rusk TX-Nacogdoches TX-Cherokee TX-
821 AM CDT Wed Mar 17 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 AM CDT
FOR SOUTHWESTERN PANOLA...RUSK...NORTHWESTERN NACOGDOCHES AND
NORTHEASTERN CHEROKEE COUNTIES...
At 821 AM CDT, severe thunderstorms were located along a line
extending from near Henderson to 8 miles east of New Salem to 6 miles
southwest of Sacul, moving east at 30 mph.
HAZARD...70 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect considerable
tree damage. Wind damage is also likely to mobile homes,
roofs, and outbuildings.
Locations impacted include...
Henderson, Rusk, Beckville, Ponta, Pinehill, Sacul, Turnertown, New
Salem, Minden, Trawick, New Summerfield, Cushing, Mount Enterprise,
Gallatin, Reklaw, Chapman, Glenfawn, Fairplay, Brachfield and
Lilbert.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3172 9524 3197 9510 3206 9498 3219 9495
3227 9435 3205 9452 3173 9469
TIME...MOT...LOC 1321Z 260DEG 25KT 3219 9471 3193 9482 3174 9499
HAIL...1.00IN
WIND...70MPH
$$
09665
WWUS54 KSHV 171336
SVSSHV
Severe Weather Statement
National Weather Service Shreveport LA
836 AM CDT Wed Mar 17 2021
TXC073-347-365-401-171345-
/O.CON.KSHV.SV.W.0014.000000T0000Z-210317T1345Z/
Panola TX-Rusk TX-Nacogdoches TX-Cherokee TX-
836 AM CDT Wed Mar 17 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 AM CDT
FOR SOUTHWESTERN PANOLA...SOUTHERN RUSK...NORTHWESTERN NACOGDOCHES
AND EAST CENTRAL CHEROKEE COUNTIES...
At 836 AM CDT, severe thunderstorms were located along a line
extending from 7 miles north of Pinehill to near Minden to near
Sacul, moving east at 30 mph.
HAZARD...70 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect considerable
tree damage. Wind damage is also likely to mobile homes,
roofs, and outbuildings.
Locations impacted include...
Henderson, Beckville, Pinehill, Sacul, Minden, Trawick, Cushing,
Mount Enterprise, Reklaw, Chapman, Glenfawn, Fairplay, Brachfield,
Looneyville, Church Hill and Laneville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3174 9504 3192 9495 3202 9493 3222 9472
3227 9435 3205 9452 3173 9469
TIME...MOT...LOC 1336Z 262DEG 26KT 3220 9459 3194 9470 3176 9487
HAIL...1.00IN
WIND...70MPH
$$
09The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 17, 1:30 AM CDT | Special Weather Statement | SHV | Marion | 45 min |
| Mar 17, 2:45 AM CDT | Lake Wind Advisory | SHV | Angelina, Bowie, Camp, Cass, Cherokee, Franklin and 15 more | 40 hr |
| Mar 17, 6:12 AM CDT | Severe Thunderstorm Warning | SHV | Camp, Franklin, Smith, Titus, Wood | 63 min |
| Mar 17, 6:49 AM CDT | Special Weather Statement | SHV | Cherokee, Smith | 41 min |
| Mar 17, 6:56 AM CDT | Severe Thunderstorm Warning | SHV | Bowie, Camp, Franklin, Morris, Red River, Titus | 49 min |
| Mar 17, 7:08 AM CDT | Tornado Warning | SHV | Bowie, Cass, Morris, Red River, Titus | 37 min |
| Mar 17, 7:12 AM CDT | Special Weather Statement | SHV | Camp, Gregg, Morris, Upshur | 48 min |
| Mar 17, 7:32 AM CDT | Severe Thunderstorm Warning | SHV | Cherokee, Gregg, Harrison, Marion, Panola, Rusk and 2 more | 58 min |
| Mar 17, 7:36 AM CDT | Severe Thunderstorm Warning | SHV | Bowie, Cass, Morris | 54 min |
| Mar 17, 7:59 AM CDT | Special Weather Statement | SHV | Cass | 31 min |
| Mar 17, 8:27 AM CDT | Severe Thunderstorm Warning | SHV | Angelina, Cherokee, Nacogdoches, Rusk, Shelby | 63 min |
| Mar 17, 8:34 AM CDT | Severe Thunderstorm Warning | SHV | Cass, Gregg, Harrison, Marion, Panola, Rusk | 56 min |
| Mar 17, 8:40 AM CDT | Severe Thunderstorm Warning | SHV | Nacogdoches, Panola, Rusk, Shelby | 44 min |
| Mar 17, 9:29 AM CDT | Severe Thunderstorm Warning | SHV | Nacogdoches, Panola, Rusk, San Augustine, Shelby | 61 min |
| Mar 17, 11:42 AM CDT | Severe Thunderstorm Warning | SHV | Angelina, Sabine, San Augustine | 48 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.