Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 554, NWS Tulsa, OK

November 7, 20114 counties in Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Nov 7, 2011, 8:42 PM CST for 4 counties in Oklahoma. It was in force for 63 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: Nov 7, 2011, 8:42 PM CST (02:42 UTC)
Expired: Nov 7, 2011, 9:45 PM CST
In force: 63 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon

Counties Creek County, OK, Osage County, OK, Pawnee County, OK, Tulsa County, OK

The radar

The Tulsa radar (KINX), 92 km from the middle of the area, began a volume at 02:43 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
Nov 7, 9:27 PM CST	HAIL 1	1 E Terlton, 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.

Issued	Product	Office	Lasted
Nov 7, 5:37 PM CST	Tornado Watch	SPC	7 hr
Nov 7, 8:28 PM CST	Tornado Watch	SPC	8 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 2.7 hours before the alert went out and 139 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: 1647 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 574 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 316 m²/s²
0-3 km storm-relative helicity: 325 m²/s²
Significant tornado parameter: 3.0
Supercell composite: 12.9

Open this sounding in Storm Lab

The text

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

943 
WUUS54 KTSA 080242
SVRTSA
OKC037-113-117-143-080345-
/O.NEW.KTSA.SV.W.0554.111108T0242Z-111108T0345Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
842 PM CST MON NOV 7 2011

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN CREEK COUNTY IN NORTHEAST OKLAHOMA
  SOUTHERN OSAGE COUNTY IN NORTHEAST OKLAHOMA
  PAWNEE COUNTY IN NORTHEAST OKLAHOMA
  WESTERN TULSA COUNTY IN NORTHEAST OKLAHOMA

* UNTIL 945 PM CST

* AT 838 PM CST...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM 10 MILES WEST OF PAWNEE TO 8 MILES SOUTHWEST OF QUAY
  TO 25 MILES WEST OF SHAMROCK...MOVING EAST AT 40 MPH.

  STORM HAZARDS INCLUDE...
  HALF DOLLAR SIZE HAIL...
  DESTRUCTIVE WIND GUSTS TO 80 MPH...

* SOME LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE...
  QUAY...PAWNEE...MARAMEC...SKEDEE...JENNINGS...RALSTON...HALLETT...
  BLACKBURN...OILTON...TERLTON...SHAMROCK...CLEVELAND...DRUMRIGHT...
  OSAGE...HOMINY...WESTPORT...WALNUT CREEK STATE PARK...MANNFORD...
  WYNONA...PAWHUSKA...KEYSTONE STATE PARK...BARNSDALL AND AVANT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PERSONS NEAR THE PATH OF THIS DANGEROUS STORM SHOULD PREPARE FOR 
DESTRUCTIVE STRAIGHT LINE WINDS. THIS STORM HAS THE POTENTIAL TO 
CAUSE SERIOUS INJURY AND SIGNIFICANT DAMAGE TO PROPERTY. IF NO 
UNDERGROUND SHELTER IS AVAILABLE TAKE COVER ON THE LOWEST FLOOR IN AN
INTERIOR ROOM AND STAY AWAY FROM WINDOWS.

A TORNADO WATCH IS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN 
DEVELOP SUDDENLY FROM SEVERE THUNDERSTORMS. 

&&

LAT...LON 3673 9616 3638 9601 3600 9621 3598 9623
      3589 9662 3615 9663 3615 9682 3624 9682
      3624 9692 3633 9693 3633 9704 3644 9704
TIME...MOT...LOC 0242Z 248DEG 36KT 3638 9693 3612 9678
          3587 9697

$$

2 follow-up statements

791 
WWUS54 KTSA 080305
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
905 PM CST MON NOV 7 2011

OKC037-113-117-143-080345-
/O.CON.KTSA.SV.W.0554.000000T0000Z-111108T0345Z/
CREEK OK-OSAGE OK-PAWNEE OK-TULSA OK-
905 PM CST MON NOV 7 2011

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM CST FOR
WESTERN TULSA...PAWNEE...SOUTHERN OSAGE AND NORTHERN CREEK
COUNTIES...

AT 904 PM CST...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM RALSTON TO HALLETT TO DRUMRIGHT...MOVING EAST AT 40
MPH.

STORM HAZARDS INCLUDE...
QUARTER SIZE HAIL...
DAMAGING WIND GUSTS TO 70 MPH...

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
DRUMRIGHT...OILTON...CLEVELAND...TERLTON...OSAGE...SILVER CITY...
HOMINY...WESTPORT...MANNFORD...WALNUT CREEK STATE PARK...WYNONA...
PAWHUSKA...KEYSTONE STATE PARK...PERSHING...NELAGONEY...TALLANT...
BARNSDALL AND AVANT.

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.

&&

LAT...LON 3646 9699 3673 9616 3638 9601 3600 9621
      3598 9623 3589 9662 3615 9663 3615 9682
      3624 9682
TIME...MOT...LOC 0305Z 248DEG 36KT 3647 9666 3624 9653
          3604 9665

$$

274 
WWUS54 KTSA 080326
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
926 PM CST MON NOV 7 2011

OKC037-113-117-143-080345-
/O.CON.KTSA.SV.W.0554.000000T0000Z-111108T0345Z/
CREEK OK-OSAGE OK-PAWNEE OK-TULSA OK-
926 PM CST MON NOV 7 2011

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM CST FOR
WESTERN TULSA...PAWNEE...SOUTHERN OSAGE AND NORTHERN CREEK
COUNTIES...

AT 921 PM CST...THE LEADING EDGE OF DAMAGING WIND FROM SEVERE 
THUNDERSTORMS WAS LOCATED ALONG A LINE EXTENDING FROM 7 MILES WEST 
OF WYNONA TO OSAGE TO SILVER CITY...MOVING EAST AT 40 MPH.

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

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...WYNONA...
WESTPORT...PAWHUSKA...MANNFORD...WALNUT CREEK STATE PARK...
PERSHING...NELAGONEY...KEYSTONE STATE PARK...TALLANT...BARNSDALL AND
AVANT.

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.

&&

LAT...LON 3654 9675 3673 9616 3638 9601 3600 9621
      3598 9623 3589 9662 3615 9663
TIME...MOT...LOC 0325Z 248DEG 36KT 3655 9641 3633 9632
          3611 9645

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 7, 6:11 PM CST	Severe Thunderstorm Warning	TSA	Osage	49 min
Nov 7, 7:03 PM CST	Special Weather Statement	TSA	Osage	42 min
Nov 7, 9:46 PM CST	Severe Thunderstorm Warning	TSA	Nowata, Osage, Rogers, Tulsa, Washington	59 min
Nov 7, 9:48 PM CST	Special Weather Statement	TSA	Creek	27 min
Nov 7, 10:31 PM CST	Areal Flood Advisory	TSA	Creek, Osage, Pawnee, Tulsa	3 hr
Nov 7, 10:42 PM CST	Special Weather Statement	TSA	Craig, Nowata, Ottawa, Rogers	63 min
Nov 7, 10:59 PM CST	Flash Flood Warning	TSA	Creek	3 hr
Nov 7, 11:37 PM CST	Flash Flood Warning	TSA	Creek, Osage, Tulsa, Washington	3 hr
Nov 8, 12:06 AM CST	Special Weather Statement	TSA	Okfuskee	54 min
Nov 8, 1:06 AM CST	Special Weather Statement	TSA	McIntosh, Muskogee, Okmulgee	54 min
Nov 8, 1:52 AM CST	Special Weather Statement	TSA	Cherokee, Muskogee	53 min
Nov 8, 1:55 AM CST	Special Weather Statement	TSA	McIntosh	65 min
Nov 8, 2:59 AM CST	Special Weather Statement	TSA	Adair, Sequoyah	61 min
Nov 8, 3:20 AM CST	Flash Flood Watch	TSA	Adair, Cherokee, Craig, Creek, Delaware, McIntosh and 11 more	9 hr
Nov 8, 8:17 AM CST	Special Weather Statement	TSA	Pittsburg	43 min
Nov 8, 8:53 AM CST	Flash Flood Warning	TSA	Cherokee, Muskogee	3 hr
Nov 8, 8:58 AM CST	Special Weather Statement	TSA	Haskell, Latimer, Pittsburg	47 min
Nov 8, 9:31 AM CST	Special Weather Statement	TSA	Haskell, Sequoyah	44 min
Nov 8, 10:02 AM CST	Severe Thunderstorm Warning	TSA	LeFlore, Sequoyah	43 min
Nov 8, 10:10 AM CST	Special Weather Statement	TSA	Latimer	35 min
Nov 8, 10:22 AM CST	Tornado Warning	TSA	Sequoyah	23 min
Nov 8, 10:27 AM CST	Tornado Warning	TSA	Pushmataha	33 min
Nov 8, 10:51 AM CST	Special Weather Statement	TSA	LeFlore	54 min
Nov 8, 11:00 AM CST	Tornado Warning	TSA	LeFlore, Pushmataha	30 min
Nov 8, 11:29 AM CST	Tornado Warning	TSA	LeFlore	37 min
Nov 8, 12:19 PM CST	Special Weather Statement	TSA	LeFlore	41 min
Nov 8, 12:29 PM CST	Tornado Warning	TSA	Pushmataha	31 min
Nov 8, 12:57 PM CST	Tornado Warning	TSA	Pushmataha	33 min
Nov 8, 1:24 PM CST	Tornado Warning	TSA	LeFlore, Pushmataha	36 min
Nov 8, 1:37 PM CST	River Flood Warning	TSA	Adair	23 hr
Nov 8, 1:37 PM CST	River Flood Warning	TSA	Cherokee	41 hr
Nov 8, 1:42 PM CST	River Flood Advisory	TSA	Cherokee, Delaware	6 hr

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2011 Every severe thunderstorm warning in 2011

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.