Alert archive / Arkansas / Tornado Warnings in 2011
Tornado Warning 49, NWS Tulsa, OK
NWS Tulsa, OK issued this tornado warning at Apr 22, 2011, 6:54 PM CDT for Benton County, Arkansas. It was in force for 41 min. 5 reports 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 22, 2011, 6:54 PM CDT (23:54 UTC)
- Expired
- Apr 22, 2011, 7:35 PM CDT
- In force
- 41 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
County Benton County, AR
The radar
The Western Arkansas radar (KSRX), 114 km from the middle of the area, began a volume at 23:54 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 22, 7:05 PM CDT | TORNADO | Highfill, AR | BRIEF TORNADO TOUCHDOWN NEAR THE NORTHWEST ARKANSAS REGIONAL AIRPORT. |
| Apr 22, 7:10 PM CDT | HAIL 1.5 | Centerton, AR | LARGE HAIL FELL FOR 3 MIN |
| Apr 22, 7:10 PM CDT | HAIL 2 | Centerton, AR | LARGE HAIL FELL FOR 3 MIN...MOSTLY 1.5 INCH HAIL WITH LARGEST BEING 2 INCHES |
| Apr 22, 7:15 PM CDT | HAIL 2 | 3 S Bentonville, AR | |
| Apr 22, 7:21 PM CDT | TORNADO | Bentonville, AR | A BRIEF TORNADO WAS REPORTED NEAR MILE MARKER 88 ON INTERSTATE 540. NO DAMAGE REPORTS HAVE BEEN RECEIVED IN THIS AREA. THIS IS A PRELIMINARY REPORT. |
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 22, 3:47 PM CDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 11.9 hours before the alert went out and 74 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
- 148 J/kg
- Mixed-layer CIN
- -391 J/kg
- Mixed-layer LCL
- 454 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 516 m²/s²
- 0-3 km storm-relative helicity
- 554 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.1
The text
As transmitted, in the capitals the NWS used until 2016.
125
WFUS54 KTSA 222354
TORTSA
ARC007-230045-
/O.NEW.KTSA.TO.W.0049.110422T2354Z-110423T0045Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
654 PM CDT FRI APR 22 2011
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
* TORNADO WARNING FOR...
BENTON COUNTY IN NORTHWEST ARKANSAS
* UNTIL 745 PM CDT
* AT 650 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
TORNADO WAS LOCATED NEAR GENTRY...MOVING EAST AT 30 MPH.
* SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
HIGHFILL...CAVE SPRINGS...BELLA VISTA...BENTONVILLE...LOWELL...
ROGERS AND PEA RIDGE.
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!
IN ADDITION TO A TORNADO...THIS STORM IS CAPABLE OF PRODUCING GOLF BALL
SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS. IF NO UNDERGROUND
SHELTER IS AVAILABLE TAKE COVER ON THE LOWEST FLOOR IN AN INTERIOR
ROOM AWAY FROM WINDOWS.
&&
LAT...LON 3624 9399 3623 9401 3621 9401 3621 9418
3621 9454 3635 9456 3650 9408 3650 9401
TIME...MOT...LOC 2354Z 262DEG 28KT 3628 9442
$$4 follow-up statements
480
WWUS54 KTSA 230004
SVSTSA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
704 PM CDT FRI APR 22 2011
ARC007-230045-
/O.CON.KTSA.TO.W.0049.000000T0000Z-110423T0045Z/
BENTON AR-
704 PM CDT FRI APR 22 2011
...TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR CENTRAL
BENTON COUNTY...
AT 702 PM CDT...NWS METEOROLOGISTS AND STORM SPOTTERS CONTINUED TO
TRACK A VERY DANGEROUS TORNADO LOCATED NEAR HIGHFILL AND NORTHWEST
ARKANSAS REGIONAL AIRPORT...MOVING EAST AT 35 MPH. A TORNADO HAS
BEEN CONFIRMED...TAKE COVER NOW!
SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...VAUGHN...
HEALING SPRINGS...CENTERTON...MILLER...CAVE SPRINGS...BELLA VISTA...
BENTONVILLE...LOWELL...ROGERS...PEA RIDGE...MONTE NE AND AVOCA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE NEAR THE PATH OF THIS STORM...TAKE COVER NOW! IF NO
UNDERGROUND SHELTER IS AVAILABLE MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR. MOBILE HOMES AND VEHICLES SHOULD BE ABANDONED FOR MORE
SUBSTANTIAL SHELTER. AVOID WINDOWS!
&&
LAT...LON 3624 9399 3623 9401 3621 9401 3622 9446
3638 9446 3650 9408 3650 9403 3649 9401
TIME...MOT...LOC 0005Z 260DEG 30KT 3630 9431
$$158
WWUS54 KTSA 230014
SVSTSA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
714 PM CDT FRI APR 22 2011
ARC007-230045-
/O.CON.KTSA.TO.W.0049.000000T0000Z-110423T0045Z/
BENTON AR-
714 PM CDT FRI APR 22 2011
...TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR EASTERN
BENTON COUNTY...
AT 710 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING A TORNADO LOCATED NEAR VAUGHN...
MOVING EAST AT 30 MPH.
SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...CAVE
SPRINGS...MILLER...BELLA VISTA...BENTONVILLE...LOWELL...ROGERS...PEA
RIDGE...MONTE NE AND AVOCA.
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!
IN ADDITION TO A TORNADO...THIS STORM IS CAPABLE OF PRODUCING HALF
DOLLAR SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS. IF NO
UNDERGROUND SHELTER IS AVAILABLE TAKE COVER ON THE LOWEST FLOOR IN
AN INTERIOR ROOM AWAY FROM WINDOWS.
&&
LAT...LON 3649 9401 3625 9399 3624 9399 3623 9401
3621 9401 3626 9436 3641 9436 3650 9408
3650 9403
TIME...MOT...LOC 0014Z 258DEG 27KT 3632 9426
$$481
WWUS54 KTSA 230028
SVSTSA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
728 PM CDT FRI APR 22 2011
ARC007-230045-
/O.CON.KTSA.TO.W.0049.000000T0000Z-110423T0045Z/
BENTON AR-
728 PM CDT FRI APR 22 2011
...TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR CENTRAL
BENTON COUNTY...
AT 727 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING A TORNADO LOCATED NEAR ROGERS...
MOVING EAST AT 30 MPH.
SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...PEA RIDGE
AND AVOCA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE NEAR THE PATH OF THIS STORM...TAKE COVER NOW! IF NO
UNDERGROUND SHELTER IS AVAILABLE MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR. MOBILE HOMES AND VEHICLES SHOULD BE ABANDONED FOR MORE
SUBSTANTIAL SHELTER. AVOID WINDOWS!
&&
LAT...LON 3649 9401 3629 9400 3630 9421 3646 9422
3650 9408 3650 9403
TIME...MOT...LOC 0028Z 255DEG 26KT 3635 9412
$$044
WWUS54 KTSA 230035
SVSTSA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
735 PM CDT FRI APR 22 2011
ARC007-230045-
/O.CAN.KTSA.TO.W.0049.000000T0000Z-110423T0045Z/
BENTON AR-
735 PM CDT FRI APR 22 2011
...THE TORNADO WARNING FOR CENTRAL BENTON COUNTY IS CANCELLED...
THE THUNDERSTORM NO LONGER APPEARS CAPABLE OF PRODUCING A
TORNADO...THEREFORE THE TORNADO WARNING HAS BEEN CANCELLED. GOLF
BALL SIZE HAIL AND WIND GUSTS TO 60 MPH WILL REMAIN POSSIBLE...AND A
SEVERE THUNDERSTORM WARNING IS NOW IN EFFECT.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 10 PM CDT.
LAT...LON 3649 9401 3629 9400 3630 9421 3646 9422
3650 9408 3650 9403
TIME...MOT...LOC 0035Z 255DEG 26KT 3636 9406
$$The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 21, 8:37 PM CDT | Areal Flood Advisory | TSA | Benton | 83 min |
| Apr 22, 6:21 PM CDT | Tornado Warning | TSA | Benton | 39 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.