Alert archive / Oklahoma / Special Weather Statements in 2012

Special Weather Statement, NWS Tulsa, OK

February 3, 2012LeFlore County, Oklahoma

NWS Tulsa, OK issued this special weather statement at Feb 3, 2012, 8:09 PM CST for LeFlore County, Oklahoma. It was in force for 66 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: Feb 3, 2012, 8:09 PM CST (02:09 UTC)
Expired: Feb 3, 2012, 9:15 PM CST
In force: 66 min
Issued by: NWS Tulsa, OK

County LeFlore County, OK

The radar

The Western Arkansas radar (KSRX), 48 km from the middle of the area, began a volume at 02:09 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 nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 2.2 hours before the alert went out and 286 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: 785 J/kg
Mixed-layer CIN: -23 J/kg
Mixed-layer LCL: 633 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 201 m²/s²
0-3 km storm-relative helicity: 251 m²/s²
Significant tornado parameter: 1.0
Supercell composite: 5.9

Open this sounding in Storm Lab

The text

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

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Tulsa, OK wrote its last area forecast discussion before this special weather statement went out at Feb 3, 5:26 PM CST, 2 hours 43 minutes earlier.

Area forecast discussion, Feb 3, 5:26 PM CST, 2 hours 43 minutes before

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Hazardous weather outlook, Feb 3, 5:17 PM CST, 2 hours 52 minutes before

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In the hours before

Special weather statement, Feb 3, 2:11 PM CST, 5 hours 58 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
211 PM CST FRI FEB 3 2012

OKZ056>058-032115-
CRAIG OK-NOWATA OK-OTTAWA OK-
211 PM CST FRI FEB 3 2012

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 315 PM CST
FOR THE FOLLOWING COUNTIES...

IN NORTHEAST OKLAHOMA
     NORTHERN CRAIG...EASTERN NOWATA AND NORTHWESTERN OTTAWA

AT 211 PM CST...STRONG THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 9 MILES NORTHWEST OF CENTRALIA TO 13 MILES SOUTHWEST
OF CENTRALIA...MOVING NORTHEAST AT 50 MPH.

SOME LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE...
BLUEJACKET...WELCH...COMMERCE...PICHER AND QUAPAW.

THESE STORMS WILL BE CAPABLE OF PRODUCING PENNY SIZE HAIL AND WIND
GUSTS TO 40 MPH.

LAT...LON 3700 9477 3695 9476 3659 9545 3660 9547
      3688 9558 3701 9537
TIME...MOT...LOC 2011Z 236DEG 42KT 3688 9548 3664 9545

Special weather statement, Feb 3, 4:51 PM CST, 3 hours 18 minutes before

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Special weather statement, Feb 3, 5:20 PM CST, 2 hours 49 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 3, 7:14 PM CST	Special Weather Statement	TSA	Pushmataha	61 min
Feb 3, 7:21 PM CST	Areal Flood Advisory	TSA	Adair, Cherokee, Haskell, McIntosh, Muskogee, Sequoyah	84 min
Feb 3, 8:30 PM CST	Special Weather Statement	TSA	Choctaw, LeFlore, Pushmataha	60 min
Feb 3, 8:58 PM CST	Special Weather Statement	TSA	LeFlore	62 min
Feb 3, 9:17 PM CST	Areal Flood Advisory	TSA	LeFlore, Pushmataha	3 hr
Feb 3, 9:50 PM CST	Special Weather Statement	TSA	Franklin	25 min

Nearby

Special Weather Statements in Oklahoma, 2012 Every special weather statement 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.