Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 21, NWS Tulsa, OK

February 25, 2013LeFlore County, Oklahoma; Sebastian County, Arkansas

NWS Tulsa, OK issued this severe thunderstorm warning at Feb 25, 2013, 12:21 PM CST for LeFlore County, Oklahoma; Sebastian County, Arkansas. It was in force for 39 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: Feb 25, 2013, 12:21 PM CST (18:21 UTC)
Expired: Feb 25, 2013, 1:00 PM CST
In force: 39 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon

Counties Sebastian County, AR, LeFlore County, OK

The radar

The Western Arkansas radar (KSRX), 30 km from the middle of the area, began a volume at 18:22 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
Feb 25, 12:36 PM CST	HAIL 0.75	2 Nw Mansfield, AR	HAIL COVERED THE GROUND.

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, 6.4 hours before the alert went out and 211 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1694 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 136 m²/s²
0-3 km storm-relative helicity: 219 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

972 
WUUS54 KTSA 251821
SVRTSA
ARC131-OKC079-251900-
/O.NEW.KTSA.SV.W.0021.130225T1821Z-130225T1900Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
1221 PM CST MON FEB 25 2013

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN LE FLORE COUNTY IN SOUTHEAST OKLAHOMA
  SOUTHERN SEBASTIAN COUNTY IN WEST CENTRAL ARKANSAS

* UNTIL 100 PM CST

* AT 1216 PM CST...A SEVERE THUNDERSTORM WAS LOCATED 11 MILES SOUTH
  OF HARTFORD...MOVING NORTHEAST AT 45 MPH.

  STORM HAZARDS INCLUDE...
  QUARTER SIZE HAIL...

* SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
  HARTFORD...MIDLAND...MANSFIELD...HUNTINGTON...EXCELSIOR...
  GREENWOOD...BURNVILLE AND WASHBURN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PEOPLE OUTDOORS SHOULD MOVE INSIDE A STURDY BUILDING. STAY AWAY FROM
WINDOWS AND DOORS UNTIL THE STORM HAS PASSED.

&&

LAT...LON 3514 9413 3510 9414 3507 9423 3497 9422
      3496 9424 3494 9434 3495 9436 3493 9444
      3483 9445 3487 9454 3529 9429 3516 9402
      3514 9403
TIME...MOT...LOC 1821Z 208DEG 40KT 3491 9439

$$

3 follow-up statements

818 
WWUS54 KTSA 251835
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1235 PM CST MON FEB 25 2013

OKC079-251845-
/O.CAN.KTSA.SV.W.0021.000000T0000Z-130225T1900Z/
LE FLORE OK-
1235 PM CST MON FEB 25 2013

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN LE FLORE COUNTY IS
CANCELLED...

LAT...LON 3514 9413 3510 9414 3507 9423 3497 9422
      3496 9424 3494 9434 3495 9436 3503 9443
      3529 9429 3516 9402 3514 9403
TIME...MOT...LOC 1835Z 207DEG 42KT 3504 9430

$$

ARC131-251900-
/O.CON.KTSA.SV.W.0021.000000T0000Z-130225T1900Z/
SEBASTIAN AR-
1235 PM CST MON FEB 25 2013

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 PM CST FOR
SOUTHERN SEBASTIAN COUNTY...

AT 1232 PM CST...A SEVERE THUNDERSTORM WAS LOCATED NEAR PATTERSON...
MOVING NORTHEAST AT 50 MPH.

STORM HAZARDS INCLUDE...
QUARTER SIZE HAIL...

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...LIBERTY...
MIDLAND...MANSFIELD...ARKOLA...HUNTINGTON...DAYTON...WITCHERVILLE...
CROSSROADS...EXCELSIOR...MILLTOWN...GREENWOOD...BURNVILLE AND
WASHBURN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PEOPLE OUTDOORS SHOULD MOVE INSIDE A STURDY BUILDING. STAY AWAY FROM
WINDOWS AND DOORS UNTIL THE STORM HAS PASSED.

&&

LAT...LON 3514 9413 3510 9414 3507 9423 3497 9422
      3496 9424 3494 9434 3495 9436 3503 9443
      3529 9429 3516 9402 3514 9403
TIME...MOT...LOC 1835Z 207DEG 42KT 3504 9430

$$

554 
WWUS54 KTSA 251845
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1245 PM CST MON FEB 25 2013

ARC131-251900-
/O.CON.KTSA.SV.W.0021.000000T0000Z-130225T1900Z/
SEBASTIAN AR-
1245 PM CST MON FEB 25 2013

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 PM CST FOR
SOUTHERN SEBASTIAN COUNTY...

AT 1242 PM CST...A SEVERE THUNDERSTORM WAS LOCATED NEAR
WITCHERVILLE...MOVING NORTHEAST AT 50 MPH.

STORM HAZARDS INCLUDE...
QUARTER SIZE HAIL...

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
BURNVILLE...GREENWOOD AND WASHBURN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PEOPLE OUTDOORS SHOULD MOVE INSIDE A STURDY BUILDING. STAY AWAY FROM
WINDOWS AND DOORS UNTIL THE STORM HAS PASSED.

&&

LAT...LON 3514 9413 3510 9414 3507 9423 3516 9436
      3529 9429 3516 9402 3514 9403
TIME...MOT...LOC 1845Z 204DEG 44KT 3519 9426

$$

001 
WWUS54 KTSA 251857
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1257 PM CST MON FEB 25 2013

ARC131-251907-
/O.EXP.KTSA.SV.W.0021.000000T0000Z-130225T1900Z/
SEBASTIAN AR-
1257 PM CST MON FEB 25 2013

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL SEBASTIAN COUNTY
EXPIRES AT 100 PM CST...

THE THUNDERSTORM HAS MOVED OUT OF THE WARNED AREA AND WEAKENED BELOW
SEVERE LIMITS...THEREFORE THE SEVERE THUNDERSTORM WARNING WILL BE
ALLOWED TO EXPIRE.

LAT...LON 3514 9413 3510 9414 3507 9423 3516 9436
      3529 9429 3516 9402 3514 9403
TIME...MOT...LOC 1857Z 204DEG 44KT 3532 9419

$$

The office that day

Everything else NWS Tulsa, OK issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 25, 4:04 AM CST	Winter Weather Advisory	TSA	Adair, Cherokee, Delaware, McIntosh, Mayes, Muskogee and 6 more	25 hr
Feb 25, 4:07 AM CST	Wind Advisory	TSA	Craig, Creek, Nowata, Pawnee, Rogers, Tulsa and 1 more	23 hr
Feb 25, 6:45 AM CST	Special Weather Statement	TSA	Pittsburg	30 min
Feb 25, 7:32 AM CST	Special Weather Statement	TSA	Muskogee	28 min
Feb 25, 10:00 AM CST	Special Weather Statement	TSA	Muskogee	30 min
Feb 25, 10:08 AM CST	Special Weather Statement	TSA	Latimer	37 min
Feb 25, 10:22 AM CST	Special Weather Statement	TSA	Haskell	23 min
Feb 25, 10:45 AM CST	Special Weather Statement	TSA	Haskell, Latimer	30 min
Feb 25, 10:58 AM CST	Special Weather Statement	TSA	Adair	32 min
Feb 25, 11:22 AM CST	Special Weather Statement	TSA	Sequoyah	23 min
Feb 25, 11:32 AM CST	Special Weather Statement	TSA	LeFlore	28 min
Feb 25, 11:37 AM CST	Special Weather Statement	TSA	Sequoyah	23 min
Feb 25, 11:47 AM CST	Special Weather Statement	TSA	LeFlore	28 min
Feb 25, 9:37 AM CST	Special Weather Statement	TSA	Sebastian	23 min
Feb 25, 12:09 PM CST	Special Weather Statement	TSA	Sebastian	36 min
Feb 25, 12:19 PM CST	Special Weather Statement	TSA	Sebastian	26 min
Feb 25, 12:52 PM CST	Special Weather Statement	TSA	Crawford, Franklin	38 min
Feb 25, 1:03 PM CST	Severe Thunderstorm Warning	TSA	Crawford, Franklin, Sebastian	27 min
Feb 25, 1:33 PM CST	Severe Thunderstorm Warning	TSA	Franklin	27 min
Feb 25, 1:36 PM CST	Special Weather Statement	TSA	Madison	39 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2013 Severe Thunderstorm Warnings in Arkansas, 2013 Every severe thunderstorm warning in 2013

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.