Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 98, NWS Tulsa, OK

May 29, 20124 counties in Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at May 29, 2012, 11:38 PM CDT for 4 counties in Oklahoma. It was in force for 67 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: May 29, 2012, 11:38 PM CDT (04:38 UTC)
Expired: May 30, 2012, 12:45 AM CDT
In force: 67 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon

Counties Choctaw County, OK, Latimer County, OK, Pittsburg County, OK, Pushmataha County, OK

The radar

The Western Arkansas radar (KSRX), 152 km from the middle of the area, began a volume at 04:38 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
May 29, 7:33 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 4.6 hours before the alert went out and 189 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: 2199 J/kg
Mixed-layer CIN: -34 J/kg
Mixed-layer LCL: 1607 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: -23 m²/s²
0-3 km storm-relative helicity: 192 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 6.2

Open this sounding in Storm Lab

The text

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

077 
WUUS54 KTSA 300438
SVRTSA
OKC023-077-121-127-300545-
/O.NEW.KTSA.SV.W.0098.120530T0438Z-120530T0545Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
1138 PM CDT TUE MAY 29 2012

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN CHOCTAW COUNTY IN SOUTHEAST OKLAHOMA
  SOUTHWESTERN LATIMER COUNTY IN SOUTHEAST OKLAHOMA
  SOUTHERN PITTSBURG COUNTY IN SOUTHEAST OKLAHOMA
  PUSHMATAHA COUNTY IN SOUTHEAST OKLAHOMA

* UNTIL 1245 AM CDT

* AT 1133 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM 23 MILES NORTHWEST OF MOYERS TO 8 MILES NORTHWEST OF
  STANLEY...MOVING SOUTH AT 25 MPH.

  STORM HAZARDS INCLUDE...
  WIND GUSTS TO 60 MPH...

* SOME LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE...
  TUSKAHOMA...CLAYTON...STANLEY...CLAYTON LAKE STATE PARK...DUNBAR...
  NASHOBA...KOSOMA...SNOW...MOYERS...KELLOND...ANTLERS...CLOUDY...
  OLETA AND RATTAN.

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 3412 9594 3416 9598 3417 9578 3450 9579
      3451 9568 3459 9568 3459 9588 3462 9589
      3463 9589 3472 9547 3451 9497 3450 9504
      3424 9504 3424 9514 3419 9514 3407 9594
TIME...MOT...LOC 0439Z 340DEG 21KT 3452 9593 3460 9553

$$

1 follow-up statement

713 
WWUS54 KTSA 300515
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1215 AM CDT WED MAY 30 2012

OKC077-121-300525-
/O.CAN.KTSA.SV.W.0098.000000T0000Z-120530T0545Z/
PITTSBURG OK-LATIMER OK-
1215 AM CDT WED MAY 30 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN LATIMER AND
SOUTHERN PITTSBURG COUNTIES IS CANCELLED...

LAT...LON 3443 9579 3451 9537 3418 9523 3408 9585
      3416 9589 3417 9578
TIME...MOT...LOC 0515Z 340DEG 21KT 3432 9584 3440 9544

$$

OKC023-127-300545-
/O.CON.KTSA.SV.W.0098.000000T0000Z-120530T0545Z/
CHOCTAW OK-PUSHMATAHA OK-
1215 AM CDT WED MAY 30 2012

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 AM CDT
FOR SOUTHWESTERN PUSHMATAHA AND NORTHERN CHOCTAW COUNTIES...

AT 1210 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 12 MILES WEST OF MOYERS TO SNOW...MOVING SOUTH AT 25
MPH.

STORM HAZARDS INCLUDE...
WIND GUSTS TO 60 MPH...

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...KOSOMA...
MOYERS...FINLEY...KELLOND...ANTLERS...OLETA...RATTAN...DELA AND
CORINNE.

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 3443 9579 3451 9537 3418 9523 3408 9585
      3416 9589 3417 9578
TIME...MOT...LOC 0515Z 340DEG 21KT 3432 9584 3440 9544

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 29, 7:11 PM CDT	Special Weather Statement	TSA	Osage	49 min
May 29, 7:27 PM CDT	Special Weather Statement	TSA	Creek	48 min
May 29, 7:49 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee	41 min
May 29, 8:07 PM CDT	Special Weather Statement	TSA	Creek	53 min
May 29, 8:17 PM CDT	Severe Thunderstorm Warning	TSA	Osage	43 min
May 29, 8:25 PM CDT	Severe Thunderstorm Warning	TSA	Osage	35 min
May 29, 8:30 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Okmulgee, Tulsa	45 min
May 29, 8:40 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Okfuskee, Okmulgee	50 min
May 29, 8:44 PM CDT	Severe Thunderstorm Warning	TSA	Osage	46 min
May 29, 8:49 PM CDT	Special Weather Statement	TSA	Tulsa	41 min
May 29, 8:55 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Tulsa	28 min
May 29, 8:57 PM CDT	Severe Thunderstorm Warning	TSA	Muskogee, Okmulgee, Tulsa, Wagoner	48 min
May 29, 9:18 PM CDT	Severe Thunderstorm Warning	TSA	McIntosh, Muskogee, Okfuskee, Okmulgee	27 min
May 29, 9:29 PM CDT	Special Weather Statement	TSA	Muskogee	46 min
May 29, 9:34 PM CDT	Special Weather Statement	TSA	Okfuskee	26 min
May 29, 9:39 PM CDT	Special Weather Statement	TSA	Wagoner	36 min
May 29, 9:46 PM CDT	Special Weather Statement	TSA	McIntosh	44 min
May 29, 10:05 PM CDT	Special Weather Statement	TSA	Cherokee, Craig, Mayes, Muskogee, Nowata	55 min
May 29, 10:10 PM CDT	Areal Flood Advisory	TSA	McIntosh, Okfuskee, Okmulgee	110 min
May 29, 10:19 PM CDT	Special Weather Statement	TSA	McIntosh, Pittsburg	41 min
May 29, 10:22 PM CDT	Severe Thunderstorm Warning	TSA	Latimer, McIntosh, Pittsburg	53 min
May 29, 10:52 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, Latimer, McIntosh, Pittsburg	68 min
May 29, 10:54 PM CDT	Special Weather Statement	TSA	Ottawa	36 min
May 29, 11:04 PM CDT	Severe Thunderstorm Warning	TSA	Delaware, Ottawa	45 min
May 29, 11:17 PM CDT	Special Weather Statement	TSA	Sequoyah	58 min
May 29, 11:21 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, Latimer, LeFlore, Pittsburg, Pushmataha	54 min
May 30, 12:31 AM CDT	Severe Thunderstorm Warning	TSA	Choctaw, Pushmataha	59 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2012 Every severe thunderstorm warning in 2012

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.