Alert archive / Arkansas / Tornado Warnings in 2011
Tornado Warning 39, NWS Tulsa, OK
NWS Tulsa, OK issued this tornado warning at Apr 14, 2011, 11:12 PM CDT for Franklin County, Sebastian County, Arkansas. It was in force for 33 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
- Apr 14, 2011, 11:12 PM CDT (04:12 UTC)
- Expired
- Apr 14, 2011, 11:45 PM CDT
- In force
- 33 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
Counties Franklin County, AR, Sebastian County, AR
The radar
The Western Arkansas radar (KSRX), 42 km from the middle of the area, began a volume at 04:12 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 |
|---|---|---|---|
| Apr 14, 11:14 PM CDT | TSTM WND DMG | 2 S Branch, AR | ABOUT 1 1/2 SOUTH OF HIGHWAY 22 AND 41 INTERSECTION TWO CHICKEN HOUSES DAMAGED. SHEET METAL RIPPED OFF. A MOBILE HOME WAS DAMAGED...ON UCAL ROAD...EITHER ROLLED OR A TREE FELL INTO IT. |
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 |
|---|---|---|---|
| Apr 14, 9:06 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 4.2 hours before the alert went out and 176 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
- 2194 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 81 m²/s²
- 0-3 km storm-relative helicity
- 249 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
321
WFUS54 KTSA 150412
TORTSA
ARC047-131-150445-
/O.NEW.KTSA.TO.W.0039.110415T0412Z-110415T0445Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
1112 PM CDT THU APR 14 2011
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
* TORNADO WARNING FOR...
SOUTHERN FRANKLIN COUNTY IN WEST CENTRAL ARKANSAS
NORTHEASTERN SEBASTIAN COUNTY IN WEST CENTRAL ARKANSAS
* UNTIL 1145 PM CDT
* AT 1107 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
TORNADO WAS LOCATED 2 MILES SOUTHEAST OF CHARLESTON...MOVING EAST
AT 30 MPH. THIS IS A DANGEROUS STORM WITH STRONG LOW LEVEL
ROTATION...A TORNADO IS OCCURRING OR COULD FORM AT ANY TIME.
* SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
BRANCH...DENNING AND ALTUS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
NIGHTTIME TORNADOES ARE ESPECIALLY DANGEROUS...TAKE COVER NOW! IF YOU
WAIT UNTIL YOU SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A
SAFE PLACE!
&&
LAT...LON 3538 9370 3537 9374 3539 9379 3531 9381
3531 9391 3522 9392 3523 9402 3516 9402
3514 9412 3538 9419 3538 9415 3546 9369
TIME...MOT...LOC 0412Z 256DEG 24KT 3528 9397
$$2 follow-up statements
223
WWUS54 KTSA 150421
SVSTSA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1121 PM CDT THU APR 14 2011
ARC131-150431-
/O.CAN.KTSA.TO.W.0039.000000T0000Z-110415T0445Z/
SEBASTIAN AR-
1121 PM CDT THU APR 14 2011
...THE TORNADO WARNING FOR EASTERN SEBASTIAN COUNTY IS CANCELLED...
LAT...LON 3523 9402 3522 9408 3539 9407 3546 9369
3538 9370 3537 9374 3539 9379 3531 9381
3531 9391 3522 9392
TIME...MOT...LOC 0421Z 256DEG 24KT 3529 9390
$$
ARC047-150445-
/O.CON.KTSA.TO.W.0039.000000T0000Z-110415T0445Z/
FRANKLIN AR-
1121 PM CDT THU APR 14 2011
...TORNADO WARNING REMAINS IN EFFECT UNTIL 1145 PM CDT FOR SOUTHERN
FRANKLIN COUNTY...
AT 1117 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING A TORNADO LOCATED NEAR BRANCH...
MOVING EAST AT 30 MPH. THIS IS A DANGEROUS STORM WITH STRONG LOW
LEVEL ROTATION...A TORNADO IS OCCURRING OR COULD FORM AT ANY TIME.
SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...MEG...
DENNING...ALTUS AND ALIX.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE NEAR THE PATH OF THIS STORM...TAKE COVER NOW! IF NO
UNDERGROUND SHELTER IS AVAILABLE MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR. MOBILE HOMES AND VEHICLES SHOULD BE ABANDONED FOR MORE
SUBSTANTIAL SHELTER. AVOID WINDOWS!
&&
LAT...LON 3523 9402 3522 9408 3539 9407 3546 9369
3538 9370 3537 9374 3539 9379 3531 9381
3531 9391 3522 9392
TIME...MOT...LOC 0421Z 256DEG 24KT 3529 9390
$$459
WWUS54 KTSA 150440
SVSTSA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1140 PM CDT THU APR 14 2011
ARC047-150450-
/O.EXP.KTSA.TO.W.0039.000000T0000Z-110415T0445Z/
FRANKLIN AR-
1140 PM CDT THU APR 14 2011
...THE TORNADO WARNING FOR SOUTHERN FRANKLIN COUNTY EXPIRES AT 1145
PM CDT...
THE THUNDERSTORM HAS MOVED OUT OF THE WARNED AREA...THEREFORE THE
TORNADO WARNING WILL BE ALLOWED TO EXPIRE.
GUSTY WINDS AND HEAVY RAIN WILL STILL BE POSSIBLE WITH THIS STORM.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 4 AM.
LAT...LON 3523 9402 3522 9408 3539 9407 3546 9369
3538 9370 3537 9374 3539 9379 3531 9381
3531 9391 3522 9392
TIME...MOT...LOC 0440Z 256DEG 24KT 3532 9375
$$The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 14, 7:48 PM CDT | Tornado Warning | TSA | Benton | 42 min |
| Apr 14, 9:14 PM CDT | Tornado Warning | TSA | Sebastian | 61 min |
| Apr 14, 9:48 PM CDT | Tornado Warning | TSA | Crawford, Sebastian | 42 min |
| Apr 14, 10:17 PM CDT | Tornado Warning | TSA | Franklin, Sebastian | 58 min |
| Apr 14, 10:28 PM CDT | Tornado Warning | TSA | Crawford, Franklin, Sebastian | 62 min |
| Apr 14, 10:36 PM CDT | Areal Flood Advisory | TSA | Crawford, Franklin, Sebastian | 114 min |
| Apr 14, 11:24 PM CDT | Special Weather Statement | TSA | Madison | 36 min |
| Apr 15, 12:43 AM CDT | Special Weather Statement | TSA | Carroll | 32 min |
Nearby
Tornado Warnings in Arkansas, 2011Every tornado warning in 2011Tornadoes in 2011
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.