Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 6, NWS Tulsa, OK

February 28, 20124 counties in Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Feb 28, 2012, 10:47 PM CST for 4 counties in Oklahoma. It was in force for 58 min. 3 reports 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 28, 2012, 10:47 PM CST (04:47 UTC)
Expired
Feb 28, 2012, 11:45 PM CST
In force
58 min
Issued by
NWS Tulsa, OK
Area
Storm-based polygon

Counties Craig County, OK, Nowata County, OK, Ottawa County, OK, Washington County, OK

The radar

The Tulsa radar (KINX), 67 km from the middle of the area, began a volume at 04:49 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
Feb 28, 11:00 PM CSTTSTM WND GST 587 E Centrailia, OK58 MPH MEASURED GUST AT VINITA MESONET
Feb 28, 11:30 PM CSTTSTM WND DMG2 E Miami, OKROOF DAMAGE AND GRILL LIFTED OFF PATIO 2 MILES EAST OF MIAMI ON HIGHWAY 10.
Feb 28, 11:50 PM CSTTSTM WND GST 60Wyandotte, 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.

IssuedProductOfficeLasted
Feb 28, 8:10 PM CSTTornado WatchSPC5 hr
Feb 28, 10:30 PM CSTTornado WatchSPC6 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 4.8 hours before the alert went out and 132 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, Springfield, MO at 00:00Z on 2012-02-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 75 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 00:00Z on 2012-02-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 482 square meters per square second.1939587897117136Sfc1 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
75 J/kg
Mixed-layer CIN
-196 J/kg
Mixed-layer LCL
595 m above ground
0-6 km bulk shear
76 kt
0-1 km storm-relative helicity
482 m²/s²
0-3 km storm-relative helicity
563 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.4

Open this sounding in Storm Lab

The text

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

189 
WUUS54 KTSA 290447
SVRTSA
OKC035-105-115-147-290545-
/O.NEW.KTSA.SV.W.0006.120229T0447Z-120229T0545Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
1047 PM CST TUE FEB 28 2012

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CRAIG COUNTY IN NORTHEAST OKLAHOMA
  NOWATA COUNTY IN NORTHEAST OKLAHOMA
  OTTAWA COUNTY IN NORTHEAST OKLAHOMA
  WASHINGTON COUNTY IN NORTHEAST OKLAHOMA

* UNTIL 1145 PM CST

* AT 1045 PM CST...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM 12 MILES NORTHEAST OF LENAPAH TO 18 MILES WEST OF
  WATOVA...MOVING EAST AT 50 MPH. THESE STORMS HAVE A HISTORY OF     
  PRODUCING DAMAGING WINDS NORTH OF DEWEY.

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

* SOME LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE...
  DELAWARE...NOWATA...WATOVA...WELCH...BLUEJACKET...PICHER...
  COMMERCE...QUAPAW...MIAMI...VINITA...NARCISSA...WYANDOTTE...
  FAIRLAND AND AFTON.

THIS INCLUDES INTERSTATE 44 BETWEEN MILE MARKERS 283 AND 324.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH IS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP SUDDENLY FROM SEVERE THUNDERSTORMS. IF YOU ARE NEAR THE PATH
OF THIS STORM...BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS.
TAKE COVER ON THE LOWEST FLOOR IN AN INTERIOR ROOM AND STAY AWAY FROM
WINDOWS.

PEOPLE OUTSIDE SHOULD MOVE TO A SAFE SHELTER...PREFERABLY INSIDE A
STRONG BUILDING. STAY AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

&&

LAT...LON 3699 9461 3683 9461 3667 9494 3667 9499
      3664 9500 3662 9504 3662 9563 3660 9572
      3660 9581 3657 9581 3652 9600 3656 9600
      3701 9555 3700 9462
TIME...MOT...LOC 0446Z 270DEG 42KT 3697 9546 3658 9595

$$
3 follow-up statements
807 
WWUS54 KTSA 290509
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1109 PM CST TUE FEB 28 2012

OKC035-105-115-147-290545-
/O.CON.KTSA.SV.W.0006.000000T0000Z-120229T0545Z/
CRAIG OK-NOWATA OK-OTTAWA OK-WASHINGTON OK-
1109 PM CST TUE FEB 28 2012

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1145 PM CST
FOR WASHINGTON...OTTAWA...NOWATA AND CRAIG COUNTIES...

AT 1106 PM CST...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 8 MILES NORTH OF WELCH TO WATOVA...MOVING EAST AT 50 
MPH. THESE STORMS HAVE A HISTORY OF PRODUCING DAMAGING WINDS TO 58 
MPH 7 MILES EAST OF CENTRALIA.

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

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...WELCH...
PYRAMID CORNERS...CARDIN...PICHER...BLUEJACKET...COMMERCE...QUAPAW...
MIAMI...VINITA...NARCISSA...OTTAWA...PEORIA...AFTON...FAIRLAND...TWIN
BRIDGES STATE PARK AND WYANDOTTE.

THIS INCLUDES INTERSTATE 44 BETWEEN MILE MARKERS 282 AND 324.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH IS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP SUDDENLY FROM SEVERE THUNDERSTORMS. IF YOU ARE NEAR THE PATH
OF THIS STORM...YOU SHOULD BE ALERT FOR RAPIDLY CHANGING WEATHER
CONDITIONS AND BE READY TO ACT QUICKLY.

PEOPLE OUTSIDE SHOULD MOVE TO A SAFE SHELTER...PREFERABLY INSIDE A
STRONG BUILDING. STAY AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

&&

LAT...LON 3699 9461 3683 9461 3667 9494 3667 9499
      3664 9500 3662 9504 3662 9563 3660 9572
      3660 9581 3657 9581 3652 9600 3656 9600
      3701 9555 3700 9462
TIME...MOT...LOC 0508Z 270DEG 42KT 3698 9506 3661 9556

$$
739 
WWUS54 KTSA 290515
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1115 PM CST TUE FEB 28 2012

OKC147-290525-
/O.CAN.KTSA.SV.W.0006.000000T0000Z-120229T0545Z/
WASHINGTON OK-
1115 PM CST TUE FEB 28 2012

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

LAT...LON 3699 9461 3683 9461 3667 9494 3667 9499
      3664 9500 3662 9504 3663 9553 3699 9526
      3700 9462
TIME...MOT...LOC 0515Z 270DEG 42KT 3699 9493 3657 9528

$$

OKC035-105-115-290545-
/O.CON.KTSA.SV.W.0006.000000T0000Z-120229T0545Z/
CRAIG OK-NOWATA OK-OTTAWA OK-
1115 PM CST TUE FEB 28 2012

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1145 PM CST
FOR OTTAWA...SOUTHEASTERN NOWATA AND CRAIG COUNTIES...

AT 1111 PM CST...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 8 MILES NORTHWEST OF COMMERCE TO 11 MILES SOUTHWEST OF
VINITA...MOVING EAST AT 60 MPH.

STORM HAZARDS INCLUDE...
WIND GUSTS TO 65 MPH...

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
BLUEJACKET...VINITA...CARDIN...PICHER...COMMERCE...MIAMI...
NARCISSA...QUAPAW...AFTON...OTTAWA...FAIRLAND...PEORIA...TWIN BRIDGES
STATE PARK AND WYANDOTTE.

THIS INCLUDES INTERSTATE 44 BETWEEN MILE MARKERS 282 AND 324.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH IS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP SUDDENLY FROM SEVERE THUNDERSTORMS. IF YOU ARE NEAR THE PATH
OF THIS STORM...YOU SHOULD BE ALERT FOR RAPIDLY CHANGING WEATHER
CONDITIONS AND BE READY TO ACT QUICKLY.

PEOPLE OUTSIDE SHOULD MOVE TO A SAFE SHELTER...PREFERABLY INSIDE A
STRONG BUILDING. STAY AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

&&

LAT...LON 3699 9461 3683 9461 3667 9494 3667 9499
      3664 9500 3662 9504 3663 9553 3699 9526
      3700 9462
TIME...MOT...LOC 0515Z 270DEG 42KT 3699 9493 3657 9528

$$
798 
WWUS54 KTSA 290523
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1123 PM CST TUE FEB 28 2012

OKC105-290533-
/O.CAN.KTSA.SV.W.0006.000000T0000Z-120229T0545Z/
NOWATA OK-
1123 PM CST TUE FEB 28 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN NOWATA COUNTY IS
CANCELLED...

LAT...LON 3699 9461 3683 9461 3667 9493 3667 9499
      3664 9500 3662 9504 3663 9531 3700 9498
      3700 9462
TIME...MOT...LOC 0523Z 270DEG 42KT 3697 9489 3656 9525

$$

OKC035-115-290545-
/O.CON.KTSA.SV.W.0006.000000T0000Z-120229T0545Z/
CRAIG OK-OTTAWA OK-
1123 PM CST TUE FEB 28 2012

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1145 PM CST
FOR OTTAWA AND EASTERN CRAIG COUNTIES...

AT 1119 PM CST...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM COMMERCE TO 10 MILES SOUTHWEST OF VINITA...MOVING EAST
AT 50 MPH.

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

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...VINITA...
CARDIN...COMMERCE...PICHER...MIAMI...NARCISSA...QUAPAW...AFTON...
OTTAWA...FAIRLAND...PEORIA...TWIN BRIDGES STATE PARK AND WYANDOTTE.

THIS INCLUDES INTERSTATE 44 BETWEEN MILE MARKERS 283 AND 324.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH IS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP SUDDENLY FROM SEVERE THUNDERSTORMS. IF YOU ARE NEAR THE PATH
OF THIS STORM...YOU SHOULD BE ALERT FOR RAPIDLY CHANGING WEATHER
CONDITIONS AND BE READY TO ACT QUICKLY.

PEOPLE OUTSIDE SHOULD MOVE TO A SAFE SHELTER...PREFERABLY INSIDE A
STRONG BUILDING. STAY AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

&&

LAT...LON 3699 9461 3683 9461 3667 9493 3667 9499
      3664 9500 3662 9504 3663 9531 3700 9498
      3700 9462
TIME...MOT...LOC 0523Z 270DEG 42KT 3697 9489 3656 9525

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 28, 9:01 PM CSTSevere Thunderstorm WarningTSAOsage44 min
Feb 28, 9:41 PM CSTSevere Thunderstorm WarningTSANowata, Osage, Pawnee, Washington64 min
Feb 28, 10:15 PM CSTSpecial Weather StatementTSACreek, Tulsa30 min
Feb 28, 10:31 PM CSTSpecial Weather StatementTSACreek, Okmulgee, Tulsa29 min
Feb 28, 10:57 PM CSTSevere Thunderstorm WarningTSAMayes, Rogers, Tulsa, Wagoner48 min
Feb 28, 11:31 PM CSTSevere Thunderstorm WarningTSACraig, Delaware, Mayes30 min
Feb 28, 11:44 PM CSTSevere Thunderstorm WarningTSAOttawa20 min
Feb 28, 11:48 PM CSTSpecial Weather StatementTSAWagoner27 min
Feb 28, 11:53 PM CSTSevere Thunderstorm WarningTSADelaware52 min
Feb 28, 11:57 PM CSTSevere Thunderstorm WarningTSACherokee, Muskogee, Wagoner48 min
Feb 29, 12:28 AM CSTSpecial Weather StatementTSAPittsburg32 min
Feb 29, 12:36 AM CSTSevere Thunderstorm WarningTSAAdair, Cherokee39 min
Feb 29, 12:58 AM CSTSpecial Weather StatementTSALatimer32 min
Feb 29, 4:14 AM CSTFire Weather WatchTSACraig, Creek, Delaware, Mayes, Nowata, Okfuskee and 7 more23 hr
Feb 29, 4:14 AM CSTRed Flag WarningTSACraig, Nowata, Ottawa14 hr

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.