Alert archive / Arkansas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 21, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Apr 9, 2021, 2:41 PM CDT for Carroll County, Arkansas. It was in force for 34 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 9, 2021, 2:41 PM CDT (19:41 UTC)
- Expired
- Apr 9, 2021, 3:15 PM CDT
- In force
- 34 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Carroll County, AR
The radar
The Springfield radar (KSGF), 99 km from the middle of the area, began a volume at 19:45 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.
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 7.7 hours before the alert went out and 69 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
- 107 J/kg
- Mixed-layer CIN
- -149 J/kg
- Mixed-layer LCL
- 1650 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 415 m²/s²
- 0-3 km storm-relative helicity
- 429 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.8
The text
As transmitted.
101
WUUS54 KTSA 091941
SVRTSA
ARC015-092015-
/O.NEW.KTSA.SV.W.0021.210409T1941Z-210409T2015Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tulsa OK
241 PM CDT Fri Apr 9 2021
The National Weather Service in Tulsa has issued a
* Severe Thunderstorm Warning for...
Eastern Carroll County in northwestern Arkansas...
* Until 315 PM CDT.
* At 241 PM CDT, a severe thunderstorm was located 3 miles southeast
of Green Forest, moving north at 40 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 in or near the path include...
Berryville... Green Forest...
Carrollton... Urbanette...
Rule... Coin...
Cabanal... Denver...
Connor... Metalton...
LAT...LON 3624 9362 3626 9362 3650 9349 3650 9330
3648 9329 3618 9330
TIME...MOT...LOC 1941Z 200DEG 35KT 3631 9339
HAIL...1.00IN
WIND...60MPH
$$3 follow-up statements
700
WWUS54 KTSA 091950
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
250 PM CDT Fri Apr 9 2021
ARC015-092015-
/O.CON.KTSA.SV.W.0021.000000T0000Z-210409T2015Z/
Carroll AR-
250 PM CDT Fri Apr 9 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM CDT
FOR NORTHEASTERN CARROLL COUNTY...
At 250 PM CDT, a severe thunderstorm was located 4 miles northeast of
Green Forest, moving north at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations in or near the path include...
Berryville... Green Forest...
Coin... Denver...
LAT...LON 3632 9358 3650 9349 3650 9330 3648 9329
3626 9330
TIME...MOT...LOC 1950Z 202DEG 25KT 3636 9337
HAIL...1.00IN
WIND...60MPH
$$244
WWUS54 KTSA 092002 RRA
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
302 PM CDT Fri Apr 9 2021
ARC015-092015-
/O.CON.KTSA.SV.W.0021.000000T0000Z-210409T2015Z/
Carroll AR-
302 PM CDT Fri Apr 9 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM CDT
FOR NORTHEASTERN CARROLL COUNTY...
At 302 PM CDT, a severe thunderstorm was located 5 miles southwest of
Roberson Hollow, moving north at 35 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 in or near the path include...
Denver...
LAT...LON 3640 9353 3650 9349 3650 9330 3648 9329
3633 9330
TIME...MOT...LOC 2002Z 201DEG 30KT 3643 9335
HAIL...1.00IN
WIND...60MPH
$$619
WWUS54 KTSA 092010
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
310 PM CDT Fri Apr 9 2021
ARC015-092020-
/O.EXP.KTSA.SV.W.0021.000000T0000Z-210409T2015Z/
Carroll AR-
310 PM CDT Fri Apr 9 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CARROLL COUNTY
WILL EXPIRE AT 315 PM CDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore the warning will be allowed to expire. However gusty winds
are still possible with this thunderstorm.
LAT...LON 3640 9353 3650 9349 3650 9330 3648 9329
3633 9330
TIME...MOT...LOC 2010Z 203DEG 26KT 3644 9333
$$The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 9, 12:41 PM CDT | Special Weather Statement | TSA | Franklin | 34 min |
| Apr 9, 1:11 PM CDT | Special Weather Statement | TSA | Franklin | 34 min |
| Apr 9, 1:41 PM CDT | Special Weather Statement | TSA | Franklin | 19 min |
| Apr 9, 2:24 PM CDT | Special Weather Statement | TSA | Carroll | 36 min |
| Apr 9, 2:33 PM CDT | Severe Thunderstorm Warning | TSA | Carroll, Madison | 42 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.