Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 272, NWS Tulsa, OK

October 13, 20126 counties in Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Oct 13, 2012, 5:14 PM CDT for 6 counties in Oklahoma. 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
Oct 13, 2012, 5:14 PM CDT (22:14 UTC)
Expired
Oct 13, 2012, 6:15 PM CDT
In force
61 min
Issued by
NWS Tulsa, OK
Area
Storm-based polygon

Counties Nowata County, OK, Osage County, OK, Pawnee County, OK, Rogers County, OK, Tulsa County, OK, Washington County, OK

The radar

The Tulsa radar (KINX), 61 km from the middle of the area, began a volume at 22:15 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

TimeReportWhereRemark
Oct 13, 5:24 PM CDTTSTM WND DMG2 E Barnsdall, OK4 INCH DIAMETER LIMBS DOWN...TIME ESTIMATED BY RADAR

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Lamont, OK (KLMN), launched 12:00Z, 10.2 hours before the alert went out and 144 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-pSkew-T log-p diagram, Lamont, OK at 12:00Z on 2012-10-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 349 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lamont, OK at 12:00Z on 2012-10-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 271 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
349 J/kg
Mixed-layer CIN
-256 J/kg
Mixed-layer LCL
798 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
271 m²/s²
0-3 km storm-relative helicity
322 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

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

832 
WUUS54 KTSA 132214
SVRTSA
OKC105-113-117-131-143-147-132315-
/O.NEW.KTSA.SV.W.0272.121013T2214Z-121013T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
514 PM CDT SAT OCT 13 2012

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NOWATA COUNTY IN NORTHEAST OKLAHOMA
  EASTERN OSAGE COUNTY IN NORTHEAST OKLAHOMA
  EASTERN PAWNEE COUNTY IN NORTHEAST OKLAHOMA
  NORTHERN ROGERS COUNTY IN NORTHEAST OKLAHOMA
  NORTHERN TULSA COUNTY IN NORTHEAST OKLAHOMA
  WASHINGTON COUNTY IN NORTHEAST OKLAHOMA

* UNTIL 615 PM CDT

* AT 511 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM OSAGE HILLS STATE PARK TO 3 MILES EAST OF WYNONA TO
  5 MILES SOUTHEAST OF WALNUT CREEK STATE PARK...MOVING NORTHEAST AT 
50 MPH. A WIND GUST OF 70 MPH WAS REPORTED 2 MILES SOUTH OF WYNONA 
AT 504 PM. .

  STORM HAZARDS INCLUDE...
  DAMAGING WIND GUSTS TO 70 MPH...

* SOME LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE...OSAGE
  HILLS STATE PARK...OKESA...BARNSDALL...AVANT...SPERRY...SKIATOOK...
  BARTLESVILLE...OCHELATA...COPAN...DEWEY...RAMONA...VERA...
  COLLINSVILLE...WANN...OOLOGAH...TALALA...WATOVA...NOWATA...
  DELAWARE...LENAPAH AND NEW ALLUWE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

PREPARE FOR DAMAGING STRAIGHT LINE WINDS. TAKE COVER INSIDE A STURDY
BUILDING AWAY FROM WINDOWS AND DOORS. MOBILE HOMES AND HIGH PROFILE
VEHICLES MAY BE OVERTURNED.

&&

LAT...LON 3700 9544 3651 9544 3614 9628 3649 9636
      3684 9623
TIME...MOT...LOC 2212Z 235DEG 44KT 3673 9620 3654 9626
          3622 9620

$$
3 follow-up statements
449 
WWUS54 KTSA 132233
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
533 PM CDT SAT OCT 13 2012

OKC117-132243-
/O.CAN.KTSA.SV.W.0272.000000T0000Z-121013T2315Z/
PAWNEE OK-
533 PM CDT SAT OCT 13 2012

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN PAWNEE COUNTY IS
CANCELLED...

LAT...LON 3626 9603 3662 9615 3687 9607 3700 9544
      3651 9544
TIME...MOT...LOC 2233Z 242DEG 40KT 3677 9594 3666 9601
          3634 9595

$$

OKC105-113-131-143-147-132315-
/O.CON.KTSA.SV.W.0272.000000T0000Z-121013T2315Z/
NOWATA OK-OSAGE OK-ROGERS OK-TULSA OK-WASHINGTON OK-
533 PM CDT SAT OCT 13 2012

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR
WASHINGTON...NORTHERN TULSA...NORTHERN ROGERS...EASTERN OSAGE AND
NOWATA COUNTIES...

AT 528 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM BARTLESVILLE TO OCHELATA TO SPERRY...MOVING NORTHEAST 
AT 45 MPH. SEVERE DOWNBURST WINDS COULD OCCUR ANYWHERE ALONG THIS 
LINE. 

STORM HAZARDS INCLUDE...
DAMAGING WIND GUSTS TO 70 MPH...

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
OCHELATA...DEWEY...TULSA...RAMONA...COPAN...VERA...COLLINSVILLE...
WANN...OOLOGAH...TALALA...WATOVA...LENAPAH...NOWATA...DELAWARE AND
NEW ALLUWE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

PREPARE FOR DAMAGING STRAIGHT LINE WINDS. TAKE COVER INSIDE A STURDY
BUILDING AWAY FROM WINDOWS AND DOORS. MOBILE HOMES AND HIGH PROFILE
VEHICLES MAY BE OVERTURNED.

TORNADOES CAN DEVELOP SUDDENLY IN THESE CONDITIONS. TAKE COVER ON THE
LOWEST FLOOR IN AN INTERIOR ROOM AWAY FROM WINDOWS AND DOORS. PREPARE
TO TAKE TORNADO PRECAUTIONS ON SHORT NOTICE.

&&

LAT...LON 3626 9603 3662 9615 3687 9607 3700 9544
      3651 9544
TIME...MOT...LOC 2233Z 242DEG 40KT 3677 9594 3666 9601
          3634 9595

$$
567 
WWUS54 KTSA 132249
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
549 PM CDT SAT OCT 13 2012

OKC113-143-132258-
/O.CAN.KTSA.SV.W.0272.000000T0000Z-121013T2315Z/
OSAGE OK-TULSA OK-
549 PM CDT SAT OCT 13 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN TULSA AND EASTERN
OSAGE COUNTIES IS CANCELLED...

LAT...LON 3700 9544 3651 9544 3636 9580 3639 9581
      3640 9579 3642 9579 3642 9582 3667 9592
      3691 9587
TIME...MOT...LOC 2248Z 242DEG 40KT 3689 9577 3673 9582
          3642 9575

$$

OKC105-131-147-132315-
/O.CON.KTSA.SV.W.0272.000000T0000Z-121013T2315Z/
NOWATA OK-ROGERS OK-WASHINGTON OK-
549 PM CDT SAT OCT 13 2012

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR
WASHINGTON...NORTHERN ROGERS AND NOWATA COUNTIES...

AT 545 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM WANN TO 12 MILES WEST OF NOWATA TO OOLOGAH...MOVING 
NORTHEAST AT 45 MPH. 

STORM HAZARDS INCLUDE...
DAMAGING WIND GUSTS 60 TO TO 70 MPH...

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...OOLOGAH...
TALALA...WATOVA...NOWATA...LENAPAH...DELAWARE AND NEW ALLUWE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

PREPARE FOR DAMAGING STRAIGHT LINE WINDS. TAKE COVER INSIDE A STURDY
BUILDING AWAY FROM WINDOWS AND DOORS. MOBILE HOMES AND HIGH PROFILE
VEHICLES MAY BE OVERTURNED.

TORNADOES CAN DEVELOP SUDDENLY IN THESE CONDITIONS. TAKE COVER ON THE
LOWEST FLOOR IN AN INTERIOR ROOM AWAY FROM WINDOWS AND DOORS. PREPARE
TO TAKE TORNADO PRECAUTIONS ON SHORT NOTICE.

&&

LAT...LON 3700 9544 3651 9544 3636 9580 3639 9581
      3640 9579 3642 9579 3642 9582 3667 9592
      3691 9587
TIME...MOT...LOC 2248Z 242DEG 40KT 3689 9577 3673 9582
          3642 9575

$$
513 
WWUS54 KTSA 132303
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
603 PM CDT SAT OCT 13 2012

OKC147-132312-
/O.CAN.KTSA.SV.W.0272.000000T0000Z-121013T2315Z/
WASHINGTON OK-
603 PM CDT SAT OCT 13 2012

...THE SEVERE THUNDERSTORM WARNING FOR WASHINGTON COUNTY IS
CANCELLED...

LAT...LON 3669 9578 3693 9575 3700 9544 3651 9544
      3638 9575
TIME...MOT...LOC 2302Z 239DEG 43KT 3696 9556 3680 9560
          3662 9553 3645 9558

$$

OKC105-131-132315-
/O.CON.KTSA.SV.W.0272.000000T0000Z-121013T2315Z/
NOWATA OK-ROGERS OK-
603 PM CDT SAT OCT 13 2012

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR
NORTHERN ROGERS AND NOWATA COUNTIES...

AT 558 PM CDT...THE LEADING EDGE OF A LIN OF SEVERE THUNDERSTORMS 
LOCATED EXTENDED FROM 6 MILES NORTH OF LENAPAH TO DELAWARE TO WATOVA 
TO OOLOGAH...MOVING NORTHEAST AT 50 MPH. SEVERE WIND GUSTS COULD 
OCCUR ANYWHERE ALONG THIS LINE. 

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

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...NEW 
ALLUWE...LENAPAH...NOWATA AND OOLAGAH LAKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH IS IN EFFECT FOR THE WARNED AREA. PEOPLE OUTDOORS
SHOULD MOVE INSIDE A STURDY BUILDING. STAY AWAY FROM WINDOWS AND
DOORS UNTIL THE STORM HAS PASSED.

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

PREPARE FOR DAMAGING STRAIGHT LINE WINDS. TAKE COVER INSIDE A STURDY
BUILDING AWAY FROM WINDOWS AND DOORS. MOBILE HOMES AND HIGH PROFILE
VEHICLES MAY BE OVERTURNED.

TORNADOES CAN DEVELOP SUDDENLY IN THESE CONDITIONS. TAKE COVER ON THE
LOWEST FLOOR IN AN INTERIOR ROOM AWAY FROM WINDOWS AND DOORS. PREPARE
TO TAKE TORNADO PRECAUTIONS ON SHORT NOTICE.

&&

LAT...LON 3669 9578 3693 9575 3700 9544 3651 9544
      3638 9575
TIME...MOT...LOC 2302Z 239DEG 43KT 3696 9556 3680 9560
          3662 9553 3645 9558

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 13, 12:43 PM CDTFlash Flood WatchTSAAdair, Cherokee, Choctaw, Craig, Creek, Delaware and 16 more12 hr
Oct 13, 4:30 PM CDTSpecial Weather StatementTSACreek30 min
Oct 13, 5:01 PM CDTSpecial Weather StatementTSAOsage29 min
Oct 13, 6:12 PM CDTSevere Thunderstorm WarningTSACraig, Nowata, Rogers48 min
Oct 13, 6:21 PM CDTAreal Flood AdvisoryTSACreek, Osage, Pawnee, Rogers, Tulsa, Washington3 hr
Oct 13, 6:33 PM CDTFlash Flood WarningTSACreek, Osage, Rogers, Tulsa, Wagoner4 hr
Oct 13, 6:44 PM CDTSevere Thunderstorm WarningTSADelaware, Ottawa44 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2012Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.