Alert archive / Oklahoma / Special Weather Statements in 2012

Special Weather Statement, NWS Norman, OK

March 7, 2012Woods County, Oklahoma

NWS Norman, OK issued this special weather statement at Mar 7, 2012, 10:09 PM CST for Woods County, Oklahoma. It was in force for 36 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: Mar 7, 2012, 10:09 PM CST (04:09 UTC)
Expired: Mar 7, 2012, 10:45 PM CST
In force: 36 min
Issued by: NWS Norman, OK

County Woods County, OK

The radar

The Vance AFB radar (KVNX), 64 km from the middle of the area, began a volume at 04:10 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

Lamont, OK (KLMN), launched 00:00Z, 4.2 hours before the alert went out and 122 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: 645 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 1207 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 134 m²/s²
0-3 km storm-relative helicity: 180 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 1.9

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 Norman, OK wrote its last area forecast discussion before this special weather statement went out at Mar 7, 9:06 PM CST, 1 hour 3 minutes earlier.

Area forecast discussion, Mar 7, 9:06 PM CST, 1 hour 3 minutes before

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  <meta name="viewport" content="width=device-width, initial-scale=1">
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</head>
<body>
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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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      <p id="message2">
        Please try again in a few minutes.
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Hazardous weather outlook, Mar 7, 9:11 PM CST, 58 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
911 PM CST WED MAR 7 2012

OKZ004>048-050>052-TXZ083>090-081000-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
911 PM CST WED MAR 7 2012

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...REST OF TONIGHT...

THUNDERSTORM OUTLOOK...
SCATTERED THUNDERSTORMS WILL REMAIN THROUGH EARLY THURSDAY MORNING.
ALTHOUGH SEVERE STORMS ARE NOT EXPECTED...A FEW STRONG THUNDERSTORMS
MAY PRODUCE SMALL HAIL AND STRONG WIND GUSTS.

DISCUSSION...
A COLD FRONT WILL CONTINUE TO MOVE ACROSS THE REGION OVERNIGHT
REACHING PORTIONS OF SOUTHWESTERN AND CENTRAL OKLAHOMA BY AROUND
SUNRISE THURSDAY. THUNDERSTORMS ARE EXPECTED TO BE MOST WIDESPREAD
NEAR AND NORTH OF THE COLD FRONT. ORGANIZED SEVERE STORMS ARE NOT
EXPECTED. HOWEVER... SOME STORMS MAY BECOME STRONG ENOUGH TO PRODUCE
SMALL HAIL.

PROBABILITY TABLE...
VALID THROUGH 700 AM CST THURSDAY MAR 8.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
              NWS NORMAN COUNTY WARNING AREA...100 PERCENT.
PROBABILITY OF SEVERE STORMS IF STORMS OCCUR...15 PERCENT.

OTHER HAZARDOUS WEATHER...
NONE.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY...

THUNDERSTORM OUTLOOK...
SHOWERS AND THUNDERSTORMS WILL CONTINUE TO DEVELOP ALONG AND BEHIND
A COLD FRONT THURSDAY...AS IT MOVES ACROSS SOUTHERN OKLAHOMA AND
WESTERN NORTH TEXAS.  SEVERE STORMS WILL BE POSSIBLE...MAINLY IN
SOUTHEAST OKLAHOMA...AS THE FRONT MOVES INTO AN INCREASINGLY
UNSTABLE AIRMASS.  THE CHANCE FOR THUNDERSTORMS WILL CONTINUE INTO
THE WEEKEND... HOWEVER THE THREAT OF SEVERE WEATHER IS EXPECTED TO
REMAIN LOW BEYOND THURSDAY.

OTHER HAZARDOUS WEATHER...
SOME SNOW MAY FALL ACROSS FAR NORTHWEST OKLAHOMA THURSDAY NIGHT
INTO FRIDAY MORNING.  ANY ACCUMULATION OF SNOW...WILL LIKELY BE
CONFINED TO GRASSY SURFACES...CARS...AND PERHAPS BRIDGES.

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED BY 5 AM
THURSDAY.

In the hours before

Special weather statement, Mar 7, 9:33 PM CST, 36 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
933 PM CST WED MAR 7 2012

OKZ004-005-010-011-080400-
HARPER OK-WOODWARD OK-MAJOR OK-WOODS OK-
933 PM CST WED MAR 7 2012

...SIGNIFICANT WEATHER ADVISORY...

THIS SIGNIFICANT WEATHER ADVISORY IS FOR HARPER...MAJOR...WOODS AND
WOODWARD COUNTIES.

AT 931 PM CST...SEVERAL STRONG THUNDERSTORMS WERE LOCATED OVER
WOODWARD AND WOODS COUNTY. ONE STRONG THUNDERSTORM WAS LOCATED 4
MILES SOUTHEAST OF WOODWARD WHILE ANOTHER STRONG STORM WAS LOCATED 6
MILES SOUTHEAST OF FORT SUPPLY. ANOTHER STRONG STORM WAS LOCATED 8
MILES EAST OF WAURIKA. THE STORMS ARE MOVING NORTHEAST AT 40 MPH.

HAZARDS INCLUDE...
HAIL UP TO THE SIZE OF DIMES...

LAT...LON 3687 9897 3653 9858 3617 9949 3648 9961

MAXWELL

Special weather statement, Mar 7, 9:49 PM CST, 20 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
949 PM CST WED MAR 7 2012

OKZ007-080415-
GRANT OK-
949 PM CST WED MAR 7 2012

...SIGNIFICANT WEATHER ADVISORY...

THIS SIGNIFICANT WEATHER ADVISORY IS FOR GRANT COUNTY.

AT 948 PM CST...A STRONG THUNDERSTORM WAS LOCATED OVER NASH...MOVING
NORTHEAST AT 35 TO 40 MPH.

HAZARDS INCLUDE...
HAIL UP TO THE SIZE OF NICKELS...
FREQUENT CLOUD TO GROUND LIGHTNING...

LAT...LON 3661 9757 3659 9810 3660 9810 3673 9811
      3698 9782

AUSTIN

Special weather statement, Mar 7, 10:09 PM CST, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
1009 PM CST WED MAR 7 2012

OKZ005-010-011-080445-
WOODWARD OK-MAJOR OK-WOODS OK-
1009 PM CST WED MAR 7 2012

...SIGNIFICANT WEATHER ADVISORY...

THIS SIGNIFICANT WEATHER ADVISORY IS FOR MAJOR...WOODS AND WOODWARD
COUNTIES.

AT 1008 PM CST...A CLUSTER OF STRONG THUNDERSTORMS WAS LOCATED
ACROSS EASTERN WOODWARD COUNTY AND WESTERN WOODS COUNTY...FROM 9
MILES NORTHWEST OF AVARD TO 6 MILES SOUTHEAST OF WAYNOKA...MOVING
NORTHEAST AT 40 MPH.

HAZARDS INCLUDE...
HAIL UP TO THE SIZE OF DIMES...
FREQUENT CLOUD TO GROUND LIGHTNING...

LAT...LON 3679 9854 3646 9854 3630 9909 3662 9929
      3683 9927 3701 9880 3701 9867

AUSTIN

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 7, 9:33 PM CST	Special Weather Statement	OUN	Woods, Woodward	27 min
Mar 7, 9:49 PM CST	Special Weather Statement	OUN	Grant	26 min
Mar 7, 10:16 PM CST	Special Weather Statement	OUN	Grant	29 min
Mar 7, 11:16 PM CST	Special Weather Statement	OUN	Grant	44 min
Mar 7, 11:32 PM CST	Severe Thunderstorm Warning	OUN	Grant, Kay	43 min
Mar 8, 12:18 AM CST	Special Weather Statement	OUN	Kay	27 min
Mar 8, 4:09 AM CST	Special Weather Statement	OUN	Jackson	21 min
Mar 8, 4:17 AM CST	Special Weather Statement	OUN	Harmon	28 min
Mar 8, 4:51 AM CST	Special Weather Statement	OUN	Tillman	24 min
Mar 8, 5:07 AM CST	Wind Advisory	OUN	Beckham, Caddo, Comanche, Cotton, Custer, Dewey and 11 more	12 hr
Mar 8, 5:26 AM CST	Special Weather Statement	OUN	Kiowa	34 min
Mar 8, 5:27 AM CST	Special Weather Statement	OUN	Harper	33 min
Mar 8, 5:53 AM CST	Special Weather Statement	OUN	Caddo, Comanche, Greer, Harmon, Jackson, Kiowa and 2 more	52 min
Mar 8, 7:37 AM CST	Special Weather Statement	OUN	Caddo, Grady, Stephens	23 min
Mar 8, 7:52 AM CST	Severe Thunderstorm Warning	OUN	Garvin, Stephens	38 min
Mar 8, 8:25 AM CST	Special Weather Statement	OUN	Garvin	35 min
Mar 8, 9:10 AM CST	Special Weather Statement	OUN	Seminole	35 min
Mar 8, 2:09 PM CST	Special Weather Statement	OUN	Johnston	36 min
Mar 8, 2:16 PM CST	Severe Thunderstorm Warning	OUN	Atoka, Bryan	44 min
Mar 8, 4:35 PM CST	Special Weather Statement	OUN	Lincoln	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.