Alert archive / Arkansas / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 461, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Jul 30, 2011, 6:42 PM CDT for 5 counties in Arkansas. It was in force for 48 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
- Jul 30, 2011, 6:42 PM CDT (23:42 UTC)
- Expired
- Jul 30, 2011, 7:30 PM CDT
- In force
- 48 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
Counties Benton County, AR, Crawford County, AR, Franklin County, AR, Madison County, AR, Washington County, AR
The radar
The Western Arkansas radar (KSRX), 80 km from the middle of the area, began a volume at 23:43 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, 11.7 hours before the alert went out and 118 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
- 2029 J/kg
- Mixed-layer CIN
- -70 J/kg
- Mixed-layer LCL
- 1301 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 18 m²/s²
- 0-3 km storm-relative helicity
- 17 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
606
WUUS54 KTSA 302342
SVRTSA
ARC007-033-047-087-143-310030-
/O.NEW.KTSA.SV.W.0461.110730T2342Z-110731T0030Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
642 PM CDT SAT JUL 30 2011
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHERN BENTON COUNTY IN NORTHWEST ARKANSAS
NORTHEASTERN CRAWFORD COUNTY IN NORTHWEST ARKANSAS
SOUTHERN MADISON COUNTY IN NORTHWEST ARKANSAS
WASHINGTON COUNTY IN NORTHWEST ARKANSAS
NORTHEASTERN FRANKLIN COUNTY IN WEST CENTRAL ARKANSAS
* UNTIL 730 PM CDT
* AT 638 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 5 MILES SOUTH OF SPRINGTOWN TO 6 MILES SOUTHEAST OF
SAINT PAUL...MOVING SOUTH AT 20 MPH. THESE STORMS HAVE A HISTORY OF
PRODUCING DAMAGING WINDS TO 80 MPH.
STORM HAZARDS INCLUDE...
DAMAGING WIND GUSTS TO 70 TO 80 MPH...
* SOME LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE...
FARMINGTON...GREENLAND...WEST FORK...CASS...BRENTWOOD...PRAIRIE
GROVE...CINCINNATI...WINSLOW AND LINCOLN.
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.
PERSONS NEAR THE PATH OF THIS DANGEROUS STORM SHOULD PREPARE FOR
DESTRUCTIVE STRAIGHT LINE WINDS. THIS STORM HAS THE POTENTIAL TO
CAUSE SERIOUS INJURY AND SIGNIFICANT DAMAGE TO PROPERTY. IF NO
UNDERGROUND SHELTER IS AVAILABLE TAKE COVER ON THE LOWEST FLOOR IN AN
INTERIOR ROOM AND STAY AWAY FROM WINDOWS.
&&
LAT...LON 3576 9353 3576 9369 3558 9369 3556 9371
3600 9453 3629 9447 3606 9378 3586 9351
3578 9351
TIME...MOT...LOC 2342Z 010DEG 16KT 3618 9444 3572 9372
$$2 follow-up statements
545
WWUS54 KTSA 310006
SVSTSA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
706 PM CDT SAT JUL 30 2011
ARC007-033-047-087-143-310030-
/O.CON.KTSA.SV.W.0461.000000T0000Z-110731T0030Z/
BENTON AR-CRAWFORD AR-FRANKLIN AR-MADISON AR-WASHINGTON AR-
706 PM CDT SAT JUL 30 2011
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT FOR
WASHINGTON...SOUTHWESTERN MADISON...NORTHEASTERN FRANKLIN...
NORTHEASTERN CRAWFORD AND SOUTHERN BENTON COUNTIES...
AT 703 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM WEDINGTON TO TAFT...MOVING SOUTH AT 20 MPH. THESE
STORMS HAVE A HISTORY OF PRODUCING DAMAGING WINDS TO 80 MPH.
STORM HAZARDS INCLUDE...
DAMAGING WIND GUSTS TO 70 MPH...
SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...RHEA...
WOOLSEY...CASS...CINCINNATI...MOUNTAIN TOP...HOGEYE...TURNERS BEND...
BIDVILLE...BARNES...WINSLOW...SUMMERS...PARADISE AND LINCOLN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PEOPLE OUTSIDE SHOULD MOVE TO A SAFE SHELTER...PREFERABLY INSIDE A
STRONG BUILDING. STAY AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
THIS STORM HAS A HISTORY OF PRODUCING DAMAGING WINDS. SEEK SHELTER
IMMEDIATELY INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.
MOBILE HOMES AND HIGH PROFILE VEHICLES ARE ESPECIALLY SUSCEPTIBLE TO
HIGH WINDS AND MAY BE OVERTURNED.
&&
LAT...LON 3628 9444 3613 9403 3578 9351 3576 9353
3576 9369 3558 9369 3556 9371 3600 9453
TIME...MOT...LOC 0007Z 004DEG 18KT 3605 9445 3565 9372
$$997
WWUS54 KTSA 310028
SVSTSA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
728 PM CDT SAT JUL 30 2011
ARC007-033-047-087-143-310038-
/O.EXP.KTSA.SV.W.0461.000000T0000Z-110731T0030Z/
BENTON AR-CRAWFORD AR-FRANKLIN AR-MADISON AR-WASHINGTON AR-
728 PM CDT SAT JUL 30 2011
...THE SEVERE THUNDERSTORM WARNING FOR WASHINGTON...SOUTHWESTERN
MADISON...NORTHEASTERN FRANKLIN...NORTHEASTERN CRAWFORD AND SOUTHERN
BENTON COUNTIES EXPIRES AT 730 PM CDT...
THE LINE OF THUNDERSTORMS HAS WEAKENED BELOW SEVERE LIMITS...AND
THEREFORE THE SEVERE THUNDERSTORM WARNING WILL BE ALLOWED TO EXPIRE.
GUSTY WINDS TO 50 MPH...AND HEAVY RAIN WILL STILL BE POSSIBLE WITH
THIS LINE OF STORMS.
TO REPORT PREVIOUS HAIL OR WIND DAMAGE...HAVE THE NEAREST LAW
ENFORCEMENT AGENCY RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
FORECAST OFFICE IN TULSA.
LAT...LON 3628 9444 3613 9403 3578 9351 3576 9353
3576 9369 3558 9369 3556 9371 3600 9453
TIME...MOT...LOC 0028Z 004DEG 18KT 3595 9446 3555 9373
$$The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 30, 3:28 PM CDT | Special Weather Statement | TSA | Carroll | 47 min |
| Jul 30, 4:11 PM CDT | Special Weather Statement | TSA | Carroll | 34 min |
| Jul 30, 5:06 PM CDT | Special Weather Statement | TSA | Madison | 24 min |
| Jul 30, 6:13 PM CDT | Special Weather Statement | TSA | Madison | 47 min |
| Jul 30, 6:24 PM CDT | Severe Thunderstorm Warning | TSA | Benton, Washington | 66 min |
Nearby
Severe Thunderstorm Warnings in Arkansas, 2011Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.