Alert archive / Oklahoma / Special Weather Statements in 2012

Special Weather Statement, NWS Norman, OK

July 9, 2012Cotton County, Oklahoma

NWS Norman, OK issued this special weather statement at Jul 9, 2012, 2:33 PM CDT for Cotton County, Oklahoma. It was in force for 42 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
Jul 9, 2012, 2:33 PM CDT (19:33 UTC)
Expired
Jul 9, 2012, 3:15 PM CDT
In force
42 min
Issued by
NWS Norman, OK

County Cotton County, OK

The radar

The Altus AFB radar (KFDR), 68 km from the middle of the area, began a volume at 19:33 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

Norman, OK (KOUN), launched 12:00Z, 7.6 hours before the alert went out and 136 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, Norman, OK at 12:00Z on 2012-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1268 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, Norman, OK at 12:00Z on 2012-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 square meters per square second.1939Sfc1 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
1268 J/kg
Mixed-layer CIN
-64 J/kg
Mixed-layer LCL
1242 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
56 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 Jul 9, 12:41 PM CDT, 1 hour 52 minutes earlier.

Area forecast discussion, Jul 9, 12:41 PM CDT, 1 hour 52 minutes before
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Hazardous weather outlook, Jul 9, 11:50 AM CDT, 2 hours 43 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
1150 AM CDT MON JUL 9 2012

OKZ004>048-050>052-TXZ083>090-101000-
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-
1150 AM CDT MON JUL 9 2012

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

.DAY ONE...THIS AFTERNOON AND TONIGHT...

THUNDERSTORM OUTLOOK...
SCATTERED THUNDERSTORMS ARE EXPECTED OVER OKLAHOMA AND WESTERN NORTH
TEXAS.

DISCUSSION...
ALTHOUGH ISOLATED STORMS WILL BE POSSIBLE JUST ABOUT ANYWHERE THIS
AFTERNOON AND EVENING...MORE ORGANIZED AREAS OF THUNDERSTORMS ARE
EXPECTED ACROSS WESTERN AND SOUTHERN OKLAHOMA...AND WESTERN NORTH
TEXAS. DUE TO THE DEVELOPMENT OF MOIST NORTHEAST WINDS...STORMS
ARE MORE LIKELY WEST OF ALVA...WEATHERFORD AND LAWTON.
ALSO...WITH A WEAK FRONTAL BOUNDARY EXTENDED ACROSS WESTERN NORTH
TEXAS AND FAR SOUTHERN OKLAHOMA...STORMS MAY BE MORE NUMEROUS NEAR
THE FRONT IN THESE AREAS. THE STRONGER STORMS WILL PRODUCE WIND
GUSTS OF 30 TO 50 MPH...TORRENTIAL RAINFALL...AND FREQUENT
LIGHTNING. SEVERE WIND GUSTS CANNOT BE RULED OUT...BUT IF THEY DO
OCCUR...THEY WILL BE ISOLATED AND SHORT-LIVED.

PROBABILITY TABLE...
VALID THROUGH 700 AM CDT TUESDAY JUL 10.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
              NWS NORMAN COUNTY WARNING AREA...100 PERCENT.
PROBABILITY OF SEVERE STORMS IF STORMS OCCUR...20 PERCENT.

OTHER HAZARDOUS WEATHER...
NONE.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY...

THUNDERSTORM OUTLOOK...
SCATTERED THUNDERSTORMS WILL REMAIN POSSIBLE TUESDAY AND
WEDNESDAY...MAINLY OVER SOUTHERN OKLAHOMA AND WESTERN NORTH TEXAS...
AS THE MENTIONED FRONT CONTINUES TO MOVE SOUTH OF THE NWS NORMAN
FORECAST AREA. SEVERE WEATHER IS NOT EXPECTED BUT LOCALLY HEAVY
RAINFALL DUE TO SLOW STORM MOTIONS WILL CONTINUE TO POSE A THREAT OF
LOCALIZED FLOODING.

OTHER HAZARDOUS WEATHER...
NONE.

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE AROUND 5 AM
TUESDAY MORNING.

In the hours before

Special weather statement, Jul 9, 12:41 PM CDT, 1 hour 52 minutes before
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Special weather statement, Jul 9, 1:01 PM CDT, 1 hour 32 minutes before
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Special weather statement, Jul 9, 1:17 PM CDT, 1 hour 16 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
117 PM CDT MON JUL 9 2012

TXZ089-091900-
ARCHER TX-
117 PM CDT MON JUL 9 2012

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN ARCHER COUNTY UNTIL
200 PM CDT...

AT 113 PM CDT...A STRONG THUNDERSTORM WAS LOCATED JUST SOUTH OF
HOLLIDAY...MOVING SOUTH AT 5 MPH.

HAZARDS INCLUDE...
WIND GUSTS TO 50 MPH...
VERY HEAVY RAIN

LOCATIONS IMPACTED INCLUDE... LAKE KICKAPOO AND MANKINS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF ON OR NEAR LAKE KICKAPOO...GET OUT OF THE WATER AND MOVE INDOORS
OR INSIDE A VEHICLE. REMEMBER...LIGHTNING CAN STRIKE OUT TO 15 MILES
FROM THE PARENT THUNDERSTORM. IF YOU CAN HEAR THUNDER... YOU ARE
CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE TO SAFE SHELTER NOW. DO
NOT BE CAUGHT ON THE WATER IN A THUNDERSTORM.

&&

LAT...LON 3363 9886 3380 9880 3379 9859 3363 9856
      3359 9869
TIME...MOT...LOC 1813Z 5DEG 3KT 3375 9872

11
Special weather statement, Jul 9, 1:56 PM CDT, 37 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
156 PM CDT MON JUL 9 2012

OKZ045-TXZ090-091945-
JEFFERSON OK-CLAY TX-
156 PM CDT MON JUL 9 2012

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN JEFFERSON AND
NORTHEASTERN CLAY COUNTIES UNTIL 245 PM CDT...

AT 153 PM CDT...A STRONG THUNDERSTORM WAS LOCATED NEAR SUGDEN...
MOVING SOUTH AT 5 MPH.

HAZARDS INCLUDE...
WIND GUSTS TO 50 MPH...
MINOR FLOODING IN AREAS OF POOR DRAINAGE...

LOCATIONS IMPACTED INCLUDE...
RYAN...TERRAL AND SUGDEN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE WEATHER IS NOT EXPECTED AND NO WARNINGS ARE ANTICIPATED AT
THIS TIME.

&&

LAT...LON 3394 9825 3413 9814 3409 9790 3388 9794
      3388 9798
TIME...MOT...LOC 1853Z 15DEG 3KT 3404 9806

11
Special weather statement, Jul 9, 2:15 PM CDT, 18 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
215 PM CDT MON JUL 9 2012

OKZ045-046-050-092000-
JEFFERSON OK-LOVE OK-CARTER OK-
215 PM CDT MON JUL 9 2012

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN JEFFERSON...
WESTERN LOVE AND SOUTHWESTERN CARTER COUNTIES UNTIL 300 PM CDT...

AT 212 PM CDT...A STRONG THUNDERSTORM WAS LOCATED JUST SOUTH OF
WILSON...MOVING SOUTHWEST AT 10 MPH.

HAZARDS INCLUDE...
WIND GUSTS 40 TO TO 50 MPH...
MINOR FLOODING IN AREAS OF POOR DRAINAGE...

LOCATIONS IMPACTED INCLUDE...
LEON...RUBOTTOM...GRADY...OSCAR...COURTNEY AND PETERSBURG.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE WEATHER IS NOT EXPECTED AND NO WARNINGS ARE ANTICIPATED AT
THIS TIME.

&&

LAT...LON 3383 9746 3389 9745 3392 9749 3390 9759
      3395 9759 3399 9766 3392 9776 3392 9779
      3389 9778 3392 9790 3415 9750 3410 9727
      3386 9732 3385 9733 3388 9733 3382 9738
TIME...MOT...LOC 1912Z 34DEG 9KT 3408 9744

11
Special weather statement, Jul 9, 2:33 PM CDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
233 PM CDT MON JUL 9 2012

OKZ044-092015-
COTTON OK-
233 PM CDT MON JUL 9 2012

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN COTTON COUNTY
UNTIL 315 PM CDT...

AT 228 PM CDT...A STRONG THUNDERSTORM WAS LOCATED NEAR TEMPLE...
MOVING SOUTHWEST AT 10 MPH.

HAZARDS INCLUDE...
WIND GUSTS TO 50 MPH...
MINOR FLOODING IN AREAS OF POOR DRAINAGE...

LOCATIONS IMPACTED INCLUDE...
TEMPLE AND TAYLOR.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE WEATHER IS NOT EXPECTED AND NO WARNINGS ARE ANTICIPATED AT
THIS TIME.

&&

LAT...LON 3415 9831 3420 9842 3438 9822 3430 9814
      3413 9816
TIME...MOT...LOC 1928Z 32DEG 9KT 3430 9820

11

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 9, 12:33 AM CDTSpecial Weather StatementOUNAlfalfa27 min
Jul 9, 12:41 PM CDTSpecial Weather StatementOUNCarter49 min
Jul 9, 1:56 PM CDTSpecial Weather StatementOUNJefferson49 min
Jul 9, 2:15 PM CDTSpecial Weather StatementOUNJefferson45 min
Jul 9, 2:47 PM CDTSpecial Weather StatementOUNHughes43 min
Jul 9, 3:16 PM CDTSpecial Weather StatementOUNJefferson44 min
Jul 9, 3:37 PM CDTSpecial Weather StatementOUNJohnston53 min
Jul 9, 4:19 PM CDTSpecial Weather StatementOUNGarvin41 min
Jul 9, 4:35 PM CDTSevere Thunderstorm WarningOUNGarvin, Stephens40 min
Jul 9, 4:36 PM CDTSpecial Weather StatementOUNMurray39 min
Jul 9, 4:37 PM CDTSpecial Weather StatementOUNBryan38 min
Jul 9, 5:05 PM CDTSpecial Weather StatementOUNKingfisher40 min
Jul 9, 5:07 PM CDTSpecial Weather StatementOUNJackson23 min
Jul 9, 5:29 PM CDTSevere Thunderstorm WarningOUNCaddo, Comanche, Grady46 min
Jul 9, 5:46 PM CDTSpecial Weather StatementOUNOklahoma44 min
Jul 9, 12:11 PM CDTSpecial Weather StatementOUNClay, Wichita49 min
Jul 9, 1:01 PM CDTSpecial Weather StatementOUNClay44 min
Jul 9, 1:17 PM CDTSpecial Weather StatementOUNArcher43 min

Nearby

Special Weather Statements in Oklahoma, 2012Every 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.