Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 21, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Mar 26, 2011, 12:47 AM CDT for Adair County, Sequoyah County, Oklahoma; Crawford County, Arkansas. It was in force for 43 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
- Mar 26, 2011, 12:47 AM CDT (05:47 UTC)
- Expired
- Mar 26, 2011, 1:30 AM CDT
- In force
- 43 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
Counties Crawford County, AR, Adair County, OK, Sequoyah County, OK
The radar
The Western Arkansas radar (KSRX), 33 km from the middle of the area, began a volume at 05:47 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 |
|---|---|---|---|
| Mar 26, 12:52 AM CDT | HAIL 1 | 4 Ne Sallisaw, OK |
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 |
|---|---|---|---|
| Mar 25, 10:50 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 5.8 hours before the alert went out and 158 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
- 843 m above ground
- 0-6 km bulk shear
- 69 kt
- 0-1 km storm-relative helicity
- 99 m²/s²
- 0-3 km storm-relative helicity
- 200 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
376
WUUS54 KTSA 260547
SVRTSA
ARC033-OKC001-135-260630-
/O.NEW.KTSA.SV.W.0021.110326T0547Z-110326T0630Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
1247 AM CDT SAT MAR 26 2011
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
EASTERN SEQUOYAH COUNTY IN EAST CENTRAL OKLAHOMA
SOUTHEASTERN ADAIR COUNTY IN NORTHEAST OKLAHOMA
WESTERN CRAWFORD COUNTY IN NORTHWEST ARKANSAS
* UNTIL 130 AM CDT
* AT 1243 AM CDT...A SEVERE THUNDERSTORM WAS LOCATED 3 MILES NORTH OF
SALLISAW...MOVING EAST AT 40 MPH.
STORM HAZARDS INCLUDE...
QUARTER SIZE HAIL...
* SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...ALMA...
BRUSHY...CEDARVILLE...DYER...FIGURE FIVE...LEE CREEK...MARBLE
CITY...NATURAL DAM...RUDY...SALLISAW AND SHORT.
THIS INCLUDES INTERSTATE 40 IN OKLAHOMA BETWEEN MILE MARKERS 304 AND
328.
THIS INCLUDES INTERSTATE 40 IN ARKANSAS BETWEEN MILE MARKERS 0 AND
17.
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 3549 9412 3540 9482 3558 9489 3576 9437
3576 9433
TIME...MOT...LOC 0547Z 252DEG 36KT 3552 9474
$$3 follow-up statements
701
WWUS54 KTSA 260602
SVSTSA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
102 AM CDT SAT MAR 26 2011
ARC033-OKC001-135-260630-
/O.CON.KTSA.SV.W.0021.000000T0000Z-110326T0630Z/
CRAWFORD AR-ADAIR OK-SEQUOYAH OK-
102 AM CDT SAT MAR 26 2011
...SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 130 AM CDT FOR EASTERN
SEQUOYAH...SOUTHEASTERN ADAIR AND WESTERN CRAWFORD COUNTIES...
AT 100 AM CDT...A SEVERE THUNDERSTORM WAS LOCATED 9 MILES WEST OF
DORA...MOVING EAST AT 40 MPH.
STORM HAZARDS INCLUDE...
QUARTER SIZE HAIL...
SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...SHORT...
DORA...UNIONTOWN...FIGURE FIVE...CEDARVILLE...NATURAL DAM...FURRY...
LEE CREEK...CONCORD...RUDY...DYER AND ALMA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PEOPLE OUTSIDE SHOULD MOVE TO A SAFE SHELTER...PREFERABLY INSIDE A
STRONG BUILDING. STAY AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
&&
LAT...LON 3549 9412 3542 9467 3562 9475 3576 9437
3576 9433
TIME...MOT...LOC 0602Z 252DEG 35KT 3547 9459
$$331
WWUS54 KTSA 260621
SVSTSA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
121 AM CDT SAT MAR 26 2011
OKC001-260632-
/O.CAN.KTSA.SV.W.0021.000000T0000Z-110326T0630Z/
ADAIR OK-
121 AM CDT SAT MAR 26 2011
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ADAIR COUNTY IS
CANCELLED...
LAT...LON 3555 9451 3555 9441 3552 9421 3549 9412
3543 9456
TIME...MOT...LOC 0622Z 252DEG 35KT 3547 9441
$$
ARC033-OKC135-260630-
/O.CON.KTSA.SV.W.0021.000000T0000Z-110326T0630Z/
CRAWFORD AR-SEQUOYAH OK-
121 AM CDT SAT MAR 26 2011
...SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 130 AM CDT FOR EASTERN
SEQUOYAH AND CENTRAL CRAWFORD COUNTIES...
AT 117 AM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR DORA...MOVING
EAST AT 40 MPH.
STORM HAZARDS INCLUDE...
QUARTER SIZE HAIL...
SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...FIGURE
FIVE...RUDY...DYER...FURRY...ALMA AND CONCORD.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PEOPLE OUTSIDE SHOULD MOVE TO A SAFE SHELTER...PREFERABLY INSIDE A
STRONG BUILDING. STAY AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
&&
LAT...LON 3555 9451 3555 9441 3552 9421 3549 9412
3543 9456
TIME...MOT...LOC 0622Z 252DEG 35KT 3547 9441
$$393
WWUS54 KTSA 260629
SVSTSA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
129 AM CDT SAT MAR 26 2011
ARC033-OKC135-260639-
/O.EXP.KTSA.SV.W.0021.000000T0000Z-110326T0630Z/
CRAWFORD AR-SEQUOYAH OK-
129 AM CDT SAT MAR 26 2011
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN SEQUOYAH AND CENTRAL
CRAWFORD COUNTIES EXPIRES AT 130 AM CDT...
THE THUNDERSTORM HAS WEAKENED BELOW SEVERE LIMITS...THEREFORE THE
SEVERE THUNDERSTORM WARNING WILL BE ALLOWED TO EXPIRE.
LAT...LON 3555 9451 3555 9441 3552 9421 3549 9412
3543 9456
TIME...MOT...LOC 0629Z 252DEG 35KT 3549 9433
$$The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 25, 11:59 PM CDT | Special Weather Statement | TSA | Pittsburg | 46 min |
| Mar 26, 12:04 AM CDT | Severe Thunderstorm Warning | TSA | Pittsburg | 56 min |
| Mar 26, 12:07 AM CDT | Special Weather Statement | TSA | Sequoyah | 38 min |
| Mar 26, 12:30 AM CDT | Special Weather Statement | TSA | Haskell | 30 min |
| Mar 26, 12:44 AM CDT | Severe Thunderstorm Warning | TSA | Haskell, Latimer, Pittsburg | 46 min |
| Mar 26, 1:00 AM CDT | Severe Thunderstorm Warning | TSA | Haskell, LeFlore, Muskogee, Sequoyah | 45 min |
| Mar 26, 1:17 AM CDT | Severe Thunderstorm Warning | TSA | Sequoyah | 43 min |
| Mar 26, 1:28 AM CDT | Severe Thunderstorm Warning | TSA | Pushmataha | 47 min |
| Mar 26, 1:33 AM CDT | Special Weather Statement | TSA | Haskell | 27 min |
| Mar 26, 1:41 AM CDT | Severe Thunderstorm Warning | TSA | Adair, Cherokee, Haskell, Sequoyah | 36 min |
| Mar 26, 3:23 AM CDT | Severe Thunderstorm Warning | TSA | Adair | 29 min |
| Mar 26, 3:40 AM CDT | Freeze Watch | TSA | Adair, Cherokee, Craig, Creek, Delaware, Mayes and 7 more | 17 hr |
| Mar 26, 4:03 AM CDT | Special Weather Statement | TSA | Delaware | 42 min |
| Mar 26, 4:33 AM CDT | Special Weather Statement | TSA | Ottawa | 42 min |
| Mar 26, 4:39 AM CDT | Severe Thunderstorm Warning | TSA | Craig, Delaware, Ottawa | 24 min |
| Mar 26, 4:41 AM CDT | Special Weather Statement | TSA | Delaware | 49 min |
| Mar 26, 3:24 PM CDT | Freeze Warning | TSA | Craig, Delaware, Nowata, Ottawa, Pawnee, Washington | 18 hr |
| Mar 26, 12:01 AM CDT | Special Weather Statement | TSA | Madison | 29 min |
| Mar 26, 1:58 AM CDT | Special Weather Statement | TSA | Crawford | 32 min |
| Mar 26, 2:28 AM CDT | Severe Thunderstorm Warning | TSA | Crawford, Franklin | 47 min |
| Mar 26, 4:11 AM CDT | Special Weather Statement | TSA | Madison, Washington | 49 min |
| Mar 26, 5:03 AM CDT | Severe Thunderstorm Warning | TSA | Benton | 42 min |
| Mar 26, 5:31 AM CDT | Special Weather Statement | TSA | Carroll | 44 min |
| Mar 26, 6:05 AM CDT | Severe Thunderstorm Warning | TSA | Carroll | 40 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 2011Severe 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.