Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 101, NWS Tulsa, OK

May 30, 2012Osage County, Pawnee County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at May 30, 2012, 9:25 PM CDT for Osage County, Pawnee County, Oklahoma. It was in force for 65 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 30, 2012, 9:25 PM CDT (02:25 UTC)
Expired: May 30, 2012, 10:30 PM CDT
In force: 65 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon

Counties Osage County, OK, Pawnee County, OK

The radar

The Vance AFB radar (KVNX), 121 km from the middle of the area, began a volume at 02:26 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 30, 7:32 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Lamont, OK (KLMN), launched 00:00Z, 2.4 hours before the alert went out and 63 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: 1367 J/kg
Mixed-layer CIN: -49 J/kg
Mixed-layer LCL: 1816 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 61 m²/s²
0-3 km storm-relative helicity: 158 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 3.2

Open this sounding in Storm Lab

The text

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

568 
WUUS54 KTSA 310225
SVRTSA
OKC113-117-310330-
/O.NEW.KTSA.SV.W.0101.120531T0225Z-120531T0330Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
925 PM CDT WED MAY 30 2012

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  OSAGE COUNTY IN NORTHEAST OKLAHOMA
  PAWNEE COUNTY IN NORTHEAST OKLAHOMA

* UNTIL 1030 PM CDT

* AT 920 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM 30 MILES NORTH OF GRAINOLA TO 9 MILES NORTHWEST OF
  GRAINOLA TO 43 MILES WEST OF BURBANK...MOVING SOUTHEAST AT 30 MPH.

  STORM HAZARDS INCLUDE...
  QUARTER SIZE HAIL...
  WIND GUSTS TO 60 MPH...

* SOME LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE...
  GRAINOLA...FORAKER...SHIDLER...OSAGE HILLS STATE PARK...RALSTON...
  HULAH...BIGHEART...PEARSONIA...OKESA...BURBANK...BARNSDALL...
  FAIRFAX...WYNONA...AVANT AND PAWHUSKA.

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 3700 9601 3643 9602 3642 9704 3651 9704
      3656 9691 3658 9690 3659 9692 3658 9700
      3659 9705 3668 9707 3670 9704 3669 9695
      3675 9689 3675 9683 3679 9676 3701 9675
TIME...MOT...LOC 0225Z 325DEG 16KT 3733 9643 3704 9672
          3684 9747

$$

1 follow-up statement

945 
WWUS54 KTSA 310256
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
956 PM CDT WED MAY 30 2012

OKC113-117-310330-
/O.CON.KTSA.SV.W.0101.000000T0000Z-120531T0330Z/
OSAGE OK-PAWNEE OK-
956 PM CDT WED MAY 30 2012

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT
FOR PAWNEE AND OSAGE COUNTIES...

AT 952 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 24 MILES NORTHWEST OF WAH SHA SHE STATE PARK TO
GRAINOLA TO 29 MILES WEST OF APPERSON...MOVING SOUTHEAST AT 30 MPH.

STORM HAZARDS INCLUDE...
QUARTER SIZE HAIL...
WIND GUSTS TO 60 MPH...

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...WEBB
CITY...FORAKER...SHIDLER...APPERSON...BURBANK...PEARSONIA...WAH SHA
SHE STATE PARK...OSAGE HILLS STATE PARK...RALSTON...HULAH...
BIGHEART...OKESA...NELAGONEY...TALLANT...PERSHING...BARNSDALL...
FAIRFAX...WOLCO...WYNONA...AVANT AND PAWHUSKA.

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 3700 9601 3643 9602 3642 9704 3651 9704
      3656 9691 3658 9690 3659 9692 3658 9700
      3659 9705 3668 9707 3670 9704 3669 9695
      3675 9689 3675 9683 3679 9676 3701 9675
TIME...MOT...LOC 0255Z 328DEG 20KT 3720 9632 3687 9666
          3674 9728

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 30, 10:06 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee	24 min
May 30, 10:24 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee, Washington	66 min
May 30, 11:06 PM CDT	Special Weather Statement	TSA	Craig, Nowata	39 min
May 30, 11:20 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Mayes, Nowata, Osage, Rogers, Washington	55 min
May 30, 11:21 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Osage, Pawnee, Tulsa	54 min
May 30, 11:44 PM CDT	Special Weather Statement	TSA	Tulsa	46 min
May 30, 11:51 PM CDT	Severe Thunderstorm Warning	TSA	Rogers, Tulsa	24 min
May 31, 12:10 AM CDT	Severe Thunderstorm Warning	TSA	Craig, Mayes, Nowata, Rogers	65 min
May 31, 12:13 AM CDT	Severe Thunderstorm Warning	TSA	Creek, Osage, Pawnee, Rogers, Tulsa, Wagoner and 1 more	62 min
May 31, 12:20 AM CDT	Special Weather Statement	TSA	Okfuskee, Okmulgee	40 min
May 31, 12:50 AM CDT	Special Weather Statement	TSA	Cherokee, Delaware	40 min
May 31, 1:13 AM CDT	Special Weather Statement	TSA	McIntosh, Mayes, Muskogee, Okmulgee, Rogers, Wagoner	62 min
May 31, 1:17 AM CDT	Special Weather Statement	TSA	Craig	28 min
May 31, 1:26 AM CDT	Areal Flood Advisory	TSA	Creek, Rogers, Tulsa	109 min
May 31, 1:47 AM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Muskogee, Sequoyah, Wagoner	43 min
May 31, 2:16 AM CDT	Special Weather Statement	TSA	Adair, Cherokee	59 min
May 31, 2:17 AM CDT	Special Weather Statement	TSA	Delaware	58 min
May 31, 2:38 AM CDT	Special Weather Statement	TSA	Adair	67 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.