Alert archive / Oklahoma / Tornado Warnings in 2011

Tornado Warning 111, NWS Tulsa, OK

October 22, 2011Okfuskee County, Oklahoma

NWS Tulsa, OK issued this tornado warning at Oct 22, 2011, 7:10 PM CDT for Okfuskee County, Oklahoma. It was in force for 20 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: Oct 22, 2011, 7:10 PM CDT (00:10 UTC)
Expired: Oct 22, 2011, 7:30 PM CDT
In force: 20 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon

County Okfuskee County, OK

The radar

The Tulsa radar (KINX), 92 km from the middle of the area, began a volume at 00:12 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
Oct 22, 3:37 PM CDT	Severe Thunderstorm Watch	SPC	14 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 0.2 hours before the alert went out and 111 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: 1908 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 1265 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 44 m²/s²
0-3 km storm-relative helicity: 230 m²/s²
Significant tornado parameter: 1.2
Supercell composite: 9.0

Open this sounding in Storm Lab

The text

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

426 
WFUS54 KTSA 230010
TORTSA
OKC107-230045-
/O.NEW.KTSA.TO.W.0111.111023T0010Z-111023T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
710 PM CDT SAT OCT 22 2011

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL OKFUSKEE COUNTY IN EAST CENTRAL OKLAHOMA

* UNTIL 745 PM CDT

* AT 707 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 3 MILES NORTHEAST OF CASTLE...MOVING EAST AT 15
  MPH.

* SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
  OKFUSKEE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE NEAR THE PATH OF THIS STORM...TAKE COVER NOW! IF NO
UNDERGROUND SHELTER IS AVAILABLE MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR. MOBILE HOMES AND VEHICLES SHOULD BE ABANDONED FOR MORE
SUBSTANTIAL SHELTER. AVOID WINDOWS!

&&

LAT...LON 3564 9622 3558 9619 3555 9619 3555 9617
      3551 9614 3542 9637 3554 9643
TIME...MOT...LOC 0011Z 249DEG 13KT 3550 9633

$$

1 follow-up statement

505 
WWUS54 KTSA 230030
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
730 PM CDT SAT OCT 22 2011

OKC107-230041-
/O.CAN.KTSA.TO.W.0111.000000T0000Z-111023T0045Z/
OKFUSKEE OK-
730 PM CDT SAT OCT 22 2011

...THE TORNADO WARNING FOR CENTRAL OKFUSKEE COUNTY IS CANCELLED...

THE THUNDERSTORM HAS MOVED OUT OF THE WARNED AREA...THEREFORE THE
TORNADO WARNING HAS BEEN CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT.

LAT...LON 3564 9622 3558 9619 3555 9619 3555 9617
      3551 9614 3542 9637 3554 9643
TIME...MOT...LOC 0031Z 249DEG 13KT 3553 9625

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 22, 7:14 PM CDT	Severe Thunderstorm Warning	TSA	McIntosh, Okfuskee, Okmulgee	61 min
Oct 22, 7:24 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Okfuskee	36 min
Oct 22, 7:26 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Mayes, Muskogee, Rogers, Tulsa, Wagoner	53 min
Oct 22, 8:03 PM CDT	Special Weather Statement	TSA	Haskell	57 min
Oct 22, 8:11 PM CDT	Severe Thunderstorm Warning	TSA	McIntosh, Okfuskee, Pittsburg	64 min
Oct 22, 8:13 PM CDT	Special Weather Statement	TSA	Cherokee	62 min
Oct 22, 8:29 PM CDT	Special Weather Statement	TSA	Haskell, Sequoyah	61 min
Oct 22, 8:55 PM CDT	Severe Thunderstorm Warning	TSA	McIntosh, Pittsburg	65 min
Oct 22, 9:17 PM CDT	Special Weather Statement	TSA	Haskell, LeFlore, Sequoyah	58 min
Oct 22, 9:45 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore	60 min
Oct 22, 9:55 PM CDT	Special Weather Statement	TSA	Latimer	65 min
Oct 22, 10:18 PM CDT	Special Weather Statement	TSA	Pushmataha	57 min
Oct 22, 10:46 PM CDT	Special Weather Statement	TSA	Choctaw, LeFlore, Pushmataha	74 min

Nearby

Tornado Warnings in Oklahoma, 2011 Every tornado warning in 2011 Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.