Alert archive / Arkansas / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 196, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Aug 8, 2012, 2:39 PM CDT for Franklin County, Sebastian County, Arkansas. It was in force for 21 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
- Aug 8, 2012, 2:39 PM CDT (19:39 UTC)
- Expired
- Aug 8, 2012, 3:00 PM CDT
- In force
- 21 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
Counties Franklin County, AR, Sebastian County, AR
The radar
The Western Arkansas radar (KSRX), 37 km from the middle of the area, began a volume at 19:39 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 184 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
- 145 J/kg
- Mixed-layer CIN
- -243 J/kg
- Mixed-layer LCL
- 2303 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- -30 m²/s²
- 0-3 km storm-relative helicity
- -26 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
758
WUUS54 KTSA 081939
SVRTSA
ARC047-131-082030-
/O.NEW.KTSA.SV.W.0196.120808T1939Z-120808T2030Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
239 PM CDT WED AUG 8 2012
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHWESTERN FRANKLIN COUNTY IN WEST CENTRAL ARKANSAS
EASTERN SEBASTIAN COUNTY IN WEST CENTRAL ARKANSAS
* UNTIL 330 PM CDT
* AT 236 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED JUST SOUTH OF
CHARLESTON...MOVING SLOWLY NORTHEAST.
STORM HAZARDS INCLUDE...
WIND GUSTS TO 60 MPH...
MINOR STREET FLOODING IN AREAS OF POOR DRAINAGE...
* SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
CHARLESTON AND BRANCH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PEOPLE OUTSIDE SHOULD MOVE TO A SAFE SHELTER...PREFERABLY INSIDE A
STRONG BUILDING. STAY AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
&&
LAT...LON 3531 9382 3532 9390 3523 9392 3523 9393
3523 9402 3514 9403 3513 9404 3514 9406
3529 9417 3545 9381
TIME...MOT...LOC 1939Z 240DEG 9KT 3526 9401
$$1 follow-up statement
380
WWUS54 KTSA 082000
SVSTSA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
300 PM CDT WED AUG 8 2012
ARC047-131-082010-
/O.CAN.KTSA.SV.W.0196.000000T0000Z-120808T2030Z/
FRANKLIN AR-SEBASTIAN AR-
300 PM CDT WED AUG 8 2012
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN SEBASTIAN AND
SOUTHWESTERN FRANKLIN COUNTIES IS CANCELLED...
THE THUNDERSTORM HAS WEAKENED BELOW SEVERE LIMITS...THEREFORE THE
SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED.
GUSTY WINDS AND LOCALLY HEAVY RAIN WILL STILL BE POSSIBLE WITH THIS
STORM.
LAT...LON 3531 9382 3532 9390 3523 9392 3523 9393
3523 9402 3514 9403 3513 9404 3514 9406
3529 9417 3545 9381
TIME...MOT...LOC 2000Z 240DEG 9KT 3529 9395
$$The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 10:53 AM CDT | Special Weather Statement | TSA | Benton | 37 min |
| Aug 8, 12:21 PM CDT | Special Weather Statement | TSA | Washington | 39 min |
| Aug 8, 12:44 PM CDT | Severe Thunderstorm Warning | TSA | Madison | 46 min |
| Aug 8, 12:53 PM CDT | Severe Thunderstorm Warning | TSA | Washington | 52 min |
| Aug 8, 1:35 PM CDT | Special Weather Statement | TSA | Franklin | 25 min |
| Aug 8, 2:34 PM CDT | Special Weather Statement | TSA | Sebastian | 26 min |
| Aug 8, 2:55 PM CDT | Special Weather Statement | TSA | Crawford | 50 min |
Nearby
Severe Thunderstorm Warnings in Arkansas, 2012Every severe thunderstorm warning in 2012
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.