Alert archive / Arkansas / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 33, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Apr 4, 2011, 5:21 AM CDT for 4 counties in Arkansas. It was in force for 32 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 4, 2011, 5:21 AM CDT (10:21 UTC)
- Expired
- Apr 4, 2011, 5:53 AM CDT
- In force
- 32 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
Counties Crawford County, AR, Franklin County, AR, Madison County, AR, Sebastian County, AR
The radar
The Western Arkansas radar (KSRX), 84 km from the middle of the area, began a volume at 10:21 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 4, 3:44 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 10.4 hours before the alert went out and 128 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
- 342 J/kg
- Mixed-layer CIN
- -476 J/kg
- Mixed-layer LCL
- 2436 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 263 m²/s²
- 0-3 km storm-relative helicity
- 457 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
605
WUUS54 KTSA 041021
SVRTSA
ARC033-047-087-131-041115-
/O.NEW.KTSA.SV.W.0033.110404T1021Z-110404T1115Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
521 AM CDT MON APR 4 2011
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHEASTERN CRAWFORD COUNTY IN NORTHWEST ARKANSAS
SOUTHEASTERN MADISON COUNTY IN NORTHWEST ARKANSAS
NORTHERN FRANKLIN COUNTY IN WEST CENTRAL ARKANSAS
NORTHEASTERN SEBASTIAN COUNTY IN WEST CENTRAL ARKANSAS
* UNTIL 615 AM CDT
* AT 516 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 8 MILES WEST OF CASS TO 6 MILES SOUTHWEST OF
MULBERRY...MOVING EAST AT 50 MPH.
STORM HAZARDS INCLUDE...
QUARTER SIZE HAIL...
WIND GUSTS TO 60 MPH...
* SOME LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE...
CASS...SAINT PAUL...OZARK...PETTIGREW...WIEDERKEHR VILLAGE AND
BOSTON.
THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 20 AND 43.
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 3585 9351 3582 9350 3577 9351 3576 9352
3576 9368 3547 9370 3541 9418 3576 9393
3594 9348 3592 9348
TIME...MOT...LOC 1021Z 251DEG 46KT 3569 9389 3546 9407
$$3 follow-up statements
475
WWUS54 KTSA 041029
SVSTSA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
529 AM CDT MON APR 4 2011
ARC033-131-041039-
/O.CAN.KTSA.SV.W.0033.000000T0000Z-110404T1115Z/
SEBASTIAN AR-CRAWFORD AR-
529 AM CDT MON APR 4 2011
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CRAWFORD AND
NORTHEASTERN SEBASTIAN COUNTIES IS CANCELLED...
LAT...LON 3585 9351 3582 9350 3576 9352 3576 9368
3547 9370 3543 9403 3561 9403 3566 9400
3567 9398 3572 9396 3573 9391 3576 9389
3576 9392 3594 9348
TIME...MOT...LOC 1029Z 251DEG 46KT 3574 9390 3545 9396
$$
ARC047-087-041115-
/O.CON.KTSA.SV.W.0033.000000T0000Z-110404T1115Z/
FRANKLIN AR-MADISON AR-
529 AM CDT MON APR 4 2011
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 AM CDT FOR
SOUTHEASTERN MADISON AND NORTHERN FRANKLIN COUNTIES...
AT 527 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 7 MILES NORTHWEST OF CASS TO TONEY...MOVING EAST AT 55
MPH.
STORM HAZARDS INCLUDE...
QUARTER SIZE HAIL...
WIND GUSTS TO 60 MPH...
SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...CRAVENS...
JETHRO...TURNERS BEND...PARADISE...CASS...BRASHEARS...BARNES...
WATALULA...SAINT PAUL...REDDING...OZARK...WIEDERKEHR VILLAGE...
DUTTON...MOUNTAIN TOP...TAFT...PETTIGREW...BOSTON...RED STAR AND
ARBAUGH.
THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 24 AND 43.
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 3585 9351 3582 9350 3576 9352 3576 9368
3547 9370 3543 9403 3561 9403 3566 9400
3567 9398 3572 9396 3573 9391 3576 9389
3576 9392 3594 9348
TIME...MOT...LOC 1029Z 251DEG 46KT 3574 9390 3545 9396
$$522
WWUS54 KTSA 041036
SVSTSA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
536 AM CDT MON APR 4 2011
ARC047-087-041115-
/O.CON.KTSA.SV.W.0033.000000T0000Z-110404T1115Z/
FRANKLIN AR-MADISON AR-
536 AM CDT MON APR 4 2011
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 AM CDT FOR
SOUTHEASTERN MADISON AND NORTHEASTERN FRANKLIN COUNTIES...
AT 532 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM CASS TO OZARK...MOVING EAST AT 55 MPH.
STORM HAZARDS INCLUDE...
QUARTER SIZE HAIL...
WIND GUSTS TO 60 MPH...
SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...REDDING...
WIEDERKEHR VILLAGE...MOUNTAIN TOP...TAFT...DUTTON...PETTIGREW...
BOSTON...RED STAR AND ARBAUGH.
THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 30 AND 43.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PEOPLE OUTSIDE SHOULD MOVE TO A SAFE SHELTER...PREFERABLY INSIDE A
STRONG BUILDING. STAY AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
&&
LAT...LON 3585 9351 3582 9350 3576 9352 3576 9368
3547 9370 3545 9395 3557 9391 3567 9397
3573 9393 3573 9391 3575 9389 3577 9391
3594 9348
TIME...MOT...LOC 1037Z 251DEG 46KT 3576 9379 3549 9383
$$602
WWUS54 KTSA 041053
SVSTSA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
553 AM CDT MON APR 4 2011
ARC047-087-041103-
/O.CAN.KTSA.SV.W.0033.000000T0000Z-110404T1115Z/
FRANKLIN AR-MADISON AR-
553 AM CDT MON APR 4 2011
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MADISON AND
NORTHEASTERN FRANKLIN COUNTIES IS CANCELLED...
THE THUNDERSTORM HAS MOVED OUT OF THE WARNED AREA AND WEAKENED BELOW
SEVERE LIMITS...THEREFORE THE SEVERE THUNDERSTORM WARNING HAS BEEN
CANCELLED.
LAT...LON 3585 9351 3582 9350 3576 9352 3576 9368
3547 9370 3545 9395 3557 9391 3567 9397
3573 9393 3573 9391 3575 9389 3577 9391
3594 9348
TIME...MOT...LOC 1053Z 251DEG 46KT 3578 9353 3551 9358
$$The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 4, 4:56 AM CDT | Special Weather Statement | TSA | Crawford, Franklin | 64 min |
| Apr 4, 3:59 PM CDT | Freeze Warning | TSA | Benton, Carroll, Madison, Washington | 17 hr |
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.