Alert archive / Arkansas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 217, NWS Shreveport, LA
NWS Shreveport, LA issued this severe thunderstorm warning at Dec 10, 2021, 10:58 PM CST for Hempstead County, Lafayette County, Nevada County, Arkansas. 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
- Dec 10, 2021, 10:58 PM CST (04:58 UTC)
- Expired
- Dec 11, 2021, 12:00 AM CST
- In force
- 62 min
- Issued by
- NWS Shreveport, LA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Hempstead County, AR, Lafayette County, AR, Nevada County, AR
The radar
The Shreveport radar (KSHV), 133 km from the middle of the area, began a volume at 04:57 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 |
|---|---|---|---|
| Dec 10, 11:38 PM CST | TSTM WND DMG | 2 E Rosston, AR | SMALL TREES DOWN ALONG HWY 278 TOWARD THE OUACHITA COUNTY BORDER. |
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 |
|---|---|---|---|
| Dec 10, 6:34 PM CST | Tornado Watch | SPC | 4 hr |
| Dec 10, 10:44 PM CST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Shreveport, LA (KSHV), launched 00:00Z, 5.0 hours before the alert went out and 128 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
- 1338 J/kg
- Mixed-layer CIN
- -32 J/kg
- Mixed-layer LCL
- 1005 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- 243 m²/s²
- 0-3 km storm-relative helicity
- 334 m²/s²
- Significant tornado parameter
- 2.6
- Supercell composite
- 10.4
The text
As transmitted.
090
WUUS54 KSHV 110458
SVRSHV
ARC057-073-099-110600-
/O.NEW.KSHV.SV.W.0217.211211T0458Z-211211T0600Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Shreveport LA
1058 PM CST Fri Dec 10 2021
The National Weather Service in Shreveport has issued a
* Severe Thunderstorm Warning for...
Southern Hempstead County in southwestern Arkansas...
Northwestern Lafayette County in southwestern Arkansas...
Nevada County in southwestern Arkansas...
* Until midnight CST.
* At 1058 PM CST, a severe thunderstorm was located near Mandeville,
or 9 miles northeast of Texarkana, moving east at 55 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Hope, Prescott, Emmet, Perrytown, Rosston, Fulton, Bodcaw, Bluff
City, White Oak Lake State Park, Cale, McNab, Patmos, Oakhaven,
Sutton, Mount Moriah, Morris, Laneburg and Reader.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 500 AM CST for southwestern
Arkansas.
For your protection move to an interior room on the lowest floor of a
building.
A Tornado Watch remains in effect until 500 AM CST for southwestern
Arkansas.
&&
LAT...LON 3380 9318 3382 9314 3378 9310 3358 9311
3348 9372 3350 9374 3353 9374 3350 9376
3353 9379 3355 9378 3354 9380 3356 9379
3357 9383 3361 9382 3364 9389 3363 9392
3365 9390 3384 9328
TIME...MOT...LOC 0458Z 254DEG 48KT 3354 9390
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
503 follow-up statements
046
WWUS54 KSHV 110518
SVSSHV
Severe Weather Statement
National Weather Service Shreveport LA
1118 PM CST Fri Dec 10 2021
ARC057-073-099-110600-
/O.CON.KSHV.SV.W.0217.000000T0000Z-211211T0600Z/
Hempstead AR-Lafayette AR-Nevada AR-
1118 PM CST Fri Dec 10 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
FOR SOUTHEASTERN HEMPSTEAD...NORTHWESTERN LAFAYETTE AND NEVADA
COUNTIES...
At 1118 PM CST, a severe thunderstorm was located near Hope, moving
east at 55 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Hope, Prescott, Emmet, Perrytown, Rosston, Bodcaw, Bluff City, White
Oak Lake State Park, Cale, Patmos, Oakhaven, Sutton, Mount Moriah,
Morris, Laneburg and Reader.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 500 AM CST for southwestern
Arkansas.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3356 9381 3369 9376 3384 9328 3380 9318
3382 9314 3378 9310 3359 9311 3357 9320
3348 9372 3350 9374 3353 9374 3350 9376
3353 9379 3355 9378 3354 9380 3356 9379
TIME...MOT...LOC 0518Z 254DEG 48KT 3361 9359
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
50777
WWUS54 KSHV 110535
SVSSHV
Severe Weather Statement
National Weather Service Shreveport LA
1135 PM CST Fri Dec 10 2021
ARC073-110545-
/O.CAN.KSHV.SV.W.0217.000000T0000Z-211211T0600Z/
Lafayette AR-
1135 PM CST Fri Dec 10 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN LAFAYETTE COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 500 AM CST for southwestern
Arkansas.
LAT...LON 3351 9353 3377 9349 3384 9328 3380 9318
3382 9314 3378 9310 3359 9311 3357 9320
TIME...MOT...LOC 0535Z 254DEG 48KT 3367 9332
$$
ARC057-099-110600-
/O.CON.KSHV.SV.W.0217.000000T0000Z-211211T0600Z/
Hempstead AR-Nevada AR-
1135 PM CST Fri Dec 10 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
FOR SOUTHEASTERN HEMPSTEAD AND NEVADA COUNTIES...
At 1135 PM CST, a severe thunderstorm was located near Rosston, or 9
miles southeast of Prescott, moving east at 55 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Prescott, Emmet, Rosston, Bodcaw, Bluff City, White Oak Lake State
Park, Cale, Mount Moriah, Sutton, Morris, Laneburg and Reader.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 500 AM CST for southwestern
Arkansas.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3351 9353 3377 9349 3384 9328 3380 9318
3382 9314 3378 9310 3359 9311 3357 9320
TIME...MOT...LOC 0535Z 254DEG 48KT 3367 9332
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
50433
WWUS54 KSHV 110600
SVSSHV
Severe Weather Statement
National Weather Service Shreveport LA
1200 AM CST Sat Dec 11 2021
ARC057-099-110610-
/O.EXP.KSHV.SV.W.0217.000000T0000Z-211211T0600Z/
Hempstead AR-Nevada AR-
1200 AM CST Sat Dec 11 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN HEMPSTEAD AND
NEVADA COUNTIES HAS EXPIRED...
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been allowed to expire.
A Tornado Watch remains in effect until 500 AM CST for southwestern
Arkansas.
LAT...LON 3351 9353 3377 9349 3384 9328 3380 9318
3382 9314 3378 9310 3359 9311 3357 9320
TIME...MOT...LOC 0600Z 254DEG 48KT 3376 9296
$$
50The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 10, 6:15 PM CST | Severe Thunderstorm Warning | SHV | Little River | 60 min |
| Dec 10, 7:05 PM CST | Severe Thunderstorm Warning | SHV | Little River, Sevier | 55 min |
| Dec 10, 7:30 PM CST | Severe Thunderstorm Warning | SHV | Hempstead, Howard, Little River, Nevada, Sevier | 45 min |
| Dec 10, 8:00 PM CST | Severe Thunderstorm Warning | SHV | Hempstead, Howard, Little River, Sevier | 45 min |
| Dec 10, 8:28 PM CST | Severe Thunderstorm Warning | SHV | Hempstead, Howard, Nevada | 62 min |
| Dec 10, 9:08 PM CST | Flash Flood Warning | SHV | Hempstead | 4 hr |
| Dec 10, 9:22 PM CST | Severe Thunderstorm Warning | SHV | Hempstead, Nevada | 29 min |
| Dec 10, 10:06 PM CST | Special Weather Statement | SHV | Little River | 24 min |
| Dec 10, 10:20 PM CST | Severe Thunderstorm Warning | SHV | Little River, Miller | 55 min |
| Dec 10, 11:30 PM CST | Severe Thunderstorm Warning | SHV | Lafayette, Miller | 45 min |
| Dec 11, 12:09 AM CST | Severe Thunderstorm Warning | SHV | Columbia, Lafayette | 51 min |
| Dec 11, 1:15 AM CST | Special Weather Statement | SHV | Union | 45 min |
Nearby
Severe Thunderstorm Warnings in Arkansas, 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.