Alert archive / Arkansas / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 484, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Aug 8, 2011, 2:59 PM CDT for 4 counties in Arkansas. It was in force for 61 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
- Aug 8, 2011, 2:59 PM CDT (19:59 UTC)
- Expired
- Aug 8, 2011, 4:00 PM CDT
- In force
- 61 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
Counties Benton County, AR, Carroll County, AR, Madison County, AR, Washington County, AR
The radar
The Western Arkansas radar (KSRX), 113 km from the middle of the area, began a volume at 19:59 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 |
|---|---|---|---|
| Aug 8, 3:33 PM CDT | TSTM WND DMG | Aurora, AR | NUMEROUS LARGE TREE LIMBS BROKEN IN AREA. ESTIMATED 50-60 MPH GUSTS. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 8.0 hours before the alert went out and 97 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
- 107 J/kg
- Mixed-layer CIN
- -274 J/kg
- Mixed-layer LCL
- 1571 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- -115 m²/s²
- 0-3 km storm-relative helicity
- -24 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
155
WUUS54 KTSA 081959
SVRTSA
ARC007-015-087-143-082100-
/O.NEW.KTSA.SV.W.0484.110808T1959Z-110808T2100Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
259 PM CDT MON AUG 8 2011
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
EASTERN BENTON COUNTY IN NORTHWEST ARKANSAS
SOUTHERN CARROLL COUNTY IN NORTHWEST ARKANSAS
CENTRAL MADISON COUNTY IN NORTHWEST ARKANSAS
NORTHEASTERN WASHINGTON COUNTY IN NORTHWEST ARKANSAS
* UNTIL 400 PM CDT
* AT 255 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 4 MILES WEST OF
HINDSVILLE...MOVING EAST AT 35 MPH.
STORM HAZARDS INCLUDE...
QUARTER SIZE HAIL...
DAMAGING WIND GUSTS TO 70 MPH...
* SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
HINDSVILLE...CLIFTY...FORUM...HUNTSVILLE...AURORA...MARBLE AND
KINGSTON.
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 3612 9347 3609 9347 3608 9344 3597 9345
3594 9348 3593 9348 3592 9350 3589 9351
3608 9405 3627 9393 3612 9333 3612 9334
TIME...MOT...LOC 1959Z 289DEG 31KT 3611 9389
$$6 follow-up statements
588
WWUS54 KTSA 082020
SVSTSA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
320 PM CDT MON AUG 8 2011
ARC007-015-087-143-082100-
/O.CON.KTSA.SV.W.0484.000000T0000Z-110808T2100Z/
BENTON AR-CARROLL AR-MADISON AR-WASHINGTON AR-
320 PM CDT MON AUG 8 2011
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM CDT FOR
NORTHEASTERN WASHINGTON...NORTHERN MADISON...SOUTHERN CARROLL AND
EASTERN BENTON COUNTIES...
AT 316 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM WITHROW SPRINGS STATE PARK TO 7 MILES SOUTH OF
HINDSVILLE...MOVING EAST AT 35 MPH.
STORM HAZARDS INCLUDE...
WIND GUSTS TO 60 MPH...
SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
HUNTSVILLE...ALABAM...HARMONY...AURORA...MARBLE...DRYFORK...KINGSTON
AND WEATHERS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PEOPLE OUTSIDE SHOULD MOVE TO A SAFE SHELTER...PREFERABLY INSIDE A
STRONG BUILDING. STAY AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
&&
LAT...LON 3612 9347 3609 9347 3608 9344 3597 9345
3594 9348 3593 9348 3592 9350 3589 9351
3608 9405 3627 9393 3612 9333 3612 9334
TIME...MOT...LOC 2020Z 289DEG 31KT 3617 9373 3603 9384
$$363
WWUS54 KTSA 082023
SVSTSA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
323 PM CDT MON AUG 8 2011
ARC007-143-082034-
/O.CAN.KTSA.SV.W.0484.000000T0000Z-110808T2100Z/
BENTON AR-WASHINGTON AR-
323 PM CDT MON AUG 8 2011
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN WASHINGTON AND
EASTERN BENTON COUNTIES IS CANCELLED...
LAT...LON 3612 9347 3609 9347 3608 9344 3597 9345
3594 9348 3593 9348 3592 9350 3589 9351
3605 9395 3607 9394 3625 9383 3613 9335
TIME...MOT...LOC 2024Z 289DEG 31KT 3616 9369 3602 9380
$$
ARC015-087-082100-
/O.CON.KTSA.SV.W.0484.000000T0000Z-110808T2100Z/
CARROLL AR-MADISON AR-
323 PM CDT MON AUG 8 2011
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM CDT FOR
NORTHERN MADISON AND SOUTHERN CARROLL COUNTIES...
AT 320 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM WITHROW SPRINGS STATE PARK TO 7 MILES SOUTHWEST OF
HUNTSVILLE...MOVING EAST AT 35 MPH.
STORM HAZARDS INCLUDE...
WIND GUSTS TO 60 MPH...
SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...ALABAM...
HARMONY...AURORA...MARBLE...DRYFORK...KINGSTON AND WEATHERS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PEOPLE OUTSIDE SHOULD MOVE TO A SAFE SHELTER...PREFERABLY INSIDE A
STRONG BUILDING. STAY AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
&&
LAT...LON 3612 9347 3609 9347 3608 9344 3597 9345
3594 9348 3593 9348 3592 9350 3589 9351
3605 9395 3607 9394 3625 9383 3613 9335
TIME...MOT...LOC 2024Z 289DEG 31KT 3616 9369 3602 9380
$$802
WWUS54 KTSA 082031
SVSTSA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
331 PM CDT MON AUG 8 2011
ARC015-087-082100-
/O.CON.KTSA.SV.W.0484.000000T0000Z-110808T2100Z/
CARROLL AR-MADISON AR-
331 PM CDT MON AUG 8 2011
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM CDT FOR
NORTHERN MADISON AND SOUTHERN CARROLL COUNTIES...
AT 329 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM ALABAM TO AURORA...MOVING EAST AT 35 MPH.
STORM HAZARDS INCLUDE...
WIND GUSTS TO 60 MPH...
SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...AURORA...
MARBLE...DRYFORK...KINGSTON AND WEATHERS.
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 3622 9378 3613 9335 3612 9347 3609 9347
3608 9344 3597 9345 3594 9348 3593 9348
3592 9350 3589 9351 3601 9385
TIME...MOT...LOC 2031Z 289DEG 31KT 3613 9364 3600 9373
$$550
WWUS54 KTSA 082040
SVSTSA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
340 PM CDT MON AUG 8 2011
ARC015-082051-
/O.CAN.KTSA.SV.W.0484.000000T0000Z-110808T2100Z/
CARROLL AR-
340 PM CDT MON AUG 8 2011
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN CARROLL COUNTY IS
CANCELLED...
LAT...LON 3597 9345 3592 9350 3589 9351 3601 9384
3620 9370 3616 9358 3615 9358 3615 9355
3612 9355 3612 9348 3609 9347 3608 9344
TIME...MOT...LOC 2041Z 289DEG 31KT 3610 9354 3597 9363
$$
ARC087-082100-
/O.CON.KTSA.SV.W.0484.000000T0000Z-110808T2100Z/
MADISON AR-
340 PM CDT MON AUG 8 2011
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM CDT FOR
NORTHERN MADISON COUNTY...
AT 337 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM MARBLE TO AURORA...MOVING EAST AT 35 MPH.
STORM HAZARDS INCLUDE...
WIND GUSTS TO 60 MPH...
SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...KINGSTON
AND WEATHERS.
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 3597 9345 3592 9350 3589 9351 3601 9384
3620 9370 3616 9358 3615 9358 3615 9355
3612 9355 3612 9348 3609 9347 3608 9344
TIME...MOT...LOC 2041Z 289DEG 31KT 3610 9354 3597 9363
$$642
WWUS54 KTSA 082048
SVSTSA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
348 PM CDT MON AUG 8 2011
ARC087-082100-
/O.CON.KTSA.SV.W.0484.000000T0000Z-110808T2100Z/
MADISON AR-
348 PM CDT MON AUG 8 2011
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM CDT FOR
EASTERN MADISON COUNTY...
AT 346 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM KINGSTON TO WEATHERS...MOVING EAST AT 35 MPH.
STORM HAZARDS INCLUDE...
WIND GUSTS TO 60 MPH...
SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...KINGSTON
AND WEATHERS.
AT 333 PM...60 MPH WINDS AND NUMEROUS BROKEN TREE LIMBS WERE
REPORTED IN AURORA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PEOPLE OUTSIDE SHOULD MOVE TO A SAFE SHELTER...PREFERABLY INSIDE A
STRONG BUILDING. STAY AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
&&
LAT...LON 3597 9345 3592 9350 3589 9351 3598 9376
3616 9361 3616 9358 3615 9358 3615 9355
3612 9355 3612 9348 3609 9347 3608 9344
TIME...MOT...LOC 2048Z 289DEG 31KT 3605 9354 3595 9358
$$560
WWUS54 KTSA 082101
SVSTSA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
401 PM CDT MON AUG 8 2011
ARC087-082111-
/O.EXP.KTSA.SV.W.0484.000000T0000Z-110808T2100Z/
MADISON AR-
401 PM CDT MON AUG 8 2011
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN MADISON COUNTY EXPIRES
AT 400 PM CDT...
THE THUNDERSTORM HAS MOVED OUT OF THE WARNED AREA...THEREFORE THE
SEVERE THUNDERSTORM WARNING WILL BE ALLOWED TO EXPIRE.
GUSTY WINDS...SMALL HAIL AND HEAVY RAIN WILL STILL BE POSSIBLE WITH
THIS STORM.
LAT...LON 3597 9345 3592 9350 3589 9351 3598 9376
3616 9361 3616 9358 3615 9358 3615 9355
3612 9355 3612 9348 3609 9347 3608 9344
TIME...MOT...LOC 2048Z 289DEG 31KT 3605 9354 3595 9358
$$The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 2:19 PM CDT | Special Weather Statement | TSA | Benton | 26 min |
| Aug 8, 2:34 PM CDT | Severe Thunderstorm Warning | TSA | Benton, Carroll, Madison, Washington | 45 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.