Alert archive / Oklahoma / Special Weather Statements in 2012

Special Weather Statement, NWS Norman, OK

August 7, 2012Pontotoc County, Oklahoma

NWS Norman, OK issued this special weather statement at Aug 7, 2012, 2:34 PM CDT for Pontotoc County, Oklahoma. It was in force for 56 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: Aug 7, 2012, 2:34 PM CDT (19:34 UTC)
Expired: Aug 7, 2012, 3:30 PM CDT
In force: 56 min
Issued by: NWS Norman, OK

County Pontotoc County, OK

The radar

The Norman radar (KTLX), 108 km from the middle of the area, began a volume at 19:35 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 104 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: 1162 J/kg
Mixed-layer CIN: -208 J/kg
Mixed-layer LCL: 1956 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 8 m²/s²
0-3 km storm-relative helicity: 135 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.1

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 Aug 7, 12:49 PM CDT, 1 hour 45 minutes earlier.

Area forecast discussion, Aug 7, 12:49 PM CDT, 1 hour 45 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
1249 PM CDT TUE AUG 7 2012

.DISCUSSION...
PLEASE SEE THE 18Z AVIATION DISCUSSION BELOW.

&&

.AVIATION...
VFR WILL APPLY THROUGH THE PERIOD. HOWEVER...TSRA IS EXPECTED THIS
AFTERNOON THROUGH LATE TONIGHT. TSRA DEVELOPMENT APPEARS MOST
LIKELY THIS AFTERNOON NEAR OUN AND OKC. VCTS HAS BEEN INCLUDED
FOR THE TWO PREVIOUSLY MENTIONED TERMINALS...BUT FELT LIKE
CONFIDENCE WAS TOO LOW WITH REGARDS TO COVERAGE TO INCLUDE IT
ANYWHERE ELSE. CONFIDENCE WILL INCREASE LATER TONIGHT ESPECIALLY
NEAR GAG...WWR AND PNC AS STORMS MOVE OUT OF KS AND INTO NORTHERN
OK.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  74 100  74 101 /  20  30  20  10
HOBART OK         73  99  74 102 /  30  30  20  10
WICHITA FALLS TX  76 101  76 103 /  20  30  20  10
GAGE OK           69  97  68 101 /  40  20  10  10
PONCA CITY OK     71  96  73 100 /  30  20  20  10
DURANT OK         75  98  76  99 /  30  20  20  20

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...HEAT ADVISORY UNTIL 10 PM CDT THIS EVENING FOR OKZ012-013-
     017>020-023>032-037>048-050>052.

TX...HEAT ADVISORY UNTIL 10 PM CDT THIS EVENING FOR TXZ086-089-090.

&&

17/03/03

Hazardous weather outlook, Aug 7, 12:05 PM CDT, 2 hours 29 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
1205 PM CDT TUE AUG 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-
1205 PM CDT TUE AUG 7 2012

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

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

THUNDERSTORM OUTLOOK...
ISOLATED TO SCATTERED THUNDERSTORMS ARE EXPECTED THROUGH
TONIGHT.  ALTHOUGH WIDESPREAD SEVERE STORMS ARE UNLIKELY...A
FEW STORMS MAY BE SEVERE AND PRODUCE DAMAGING WIND GUSTS UP
TO 65 MPH.

DISCUSSION...
ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS WILL PREVAIL ACROSS
OKLAHOMA AND NORTH TEXAS THIS AFTERNOON WITH SLIGHTLY BETTER COVERAGE
OF STORMS EAST OF I-35.  THESE STORMS WILL REMAIN UNORGANIZED AND
PULSE IN NATURE.  WITH SIGNIFICANT DIFFERENCES IN LOW LEVEL TEMPERATURE
AND DEWPOINT EXPECTED THIS AFTERNOON AND EVENING...A FEW OF THESE
STORMS MAY BE STRONG TO SEVERE WITH DAMAGING WINDS UP T0 65 MPH...
CLOUD TO GROUND LIGHTNING STRIKES WHICH MAY IGNITE FIRES...AND
LOCALLY HEAVY RAINFALL.

TONIGHT...A SEMI-ORGANIZED LINE OF STORMS MAY DEVELOP IN KANSAS
AND SURGE SOUTHWARD.  THIS LINE MAY BRING ISOLATED DAMAGING WIND
GUSTS UP TO 65 MPH ACROSS NORTHWESTERN OKLAHOMA MAINLY BEFORE
MIDNIGHT BEFORE IT WEAKENS.  ADDITIONAL ISOLATED TO SCATTERED
THUNDERSTORMS MAY OCCUR ACROSS THE REST OF OKLAHOMA AND
NORTH TEXAS...MAINLY BEFORE MIDNIGHT.

PROBABILITY TABLE...
VALID THROUGH 700 AM CDT WEDNESDAY AUG 8.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
              NWS NORMAN COUNTY WARNING AREA...100 PERCENT.
PROBABILITY OF SEVERE STORMS IF STORMS OCCUR...40 PERCENT.

OTHER HAZARDOUS WEATHER...
HIGH WILDFIRE DANGER WILL PERSIST ACROSS THE REGION.

THE PERSISTENT HOT TEMPERATURES WILL ALSO INCREASE CHANCES OF HEAT
RELATED ILLNESSES...ESPECIALLY FOR THOSE PARTICIPATING IN STRENUOUS
OUTDOOR ACTIVITIES DURING THE HEAT OF THE DAY.  A HEAT ADVISORY
REMAINS IN EFFECT THROUGH 10 PM CDT THIS EVENING FOR LOCATIONS
SOUTHEAST OF A SEYMOUR TEXAS TO WATONGA OKLAHOMA TO PERRY
OKLAHOMA LINE.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY...

THUNDERSTORM OUTLOOK...
THERE WILL BE A CHANCE OF THUNDERSTORMS THROUGH THURSDAY.  ALTHOUGH
ORGANIZED SEVERE WEATHER IS NOT EXPECTED...THE STRONGER STORMS WILL
BE CAPABLE OF PRODUCING STRONG AND POSSIBLY DAMAGING WIND GUSTS.

OTHER HAZARDOUS WEATHER...
WILDFIRE DANGER WILL REMAIN HIGH REGIONWIDE DUE TO SIGNIFICANT
DROUGHT CONDITIONS.

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AROUND
5 AM WEDNESDAY.

MBS/03

In the hours before

Special weather statement, Aug 7, 1:20 PM CDT, 1 hour 14 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
120 PM CDT TUE AUG 7 2012

OKZ048-052-071845-
BRYAN OK-ATOKA OK-
120 PM CDT TUE AUG 7 2012

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN BRYAN AND
SOUTHWESTERN ATOKA COUNTIES UNTIL 145 PM CDT...

AT 120 PM CDT...A STRONG THUNDERSTORM WAS LOCATED NEAR TUSHKA...
MOVING SOUTH AT 20 MPH.

HAZARDS INCLUDE...
WIND GUSTS TO 50 MPH...
MINOR FLOODING IN AREAS OF POOR DRAINAGE...
FREQUENT CLOUD TO GROUND LIGHTNING...

LOCATIONS IMPACTED INCLUDE...
ATOKA...BOKCHITO...TUSHKA...BENNINGTON...CANEY...BLUE AND BENTLEY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MONITOR THE WEATHER SITUATION CLOSELY AND BE ALERT FOR THREATENING
WEATHER CONDITIONS.

&&

LAT...LON 3397 9623 3439 9628 3443 9604 3416 9595
      3415 9596 3415 9595 3412 9594 3401 9594
TIME...MOT...LOC 1816Z 349DEG 16KT 3433 9614

MBS

Special weather statement, Aug 7, 1:25 PM CDT, 1 hour 9 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
125 PM CDT TUE AUG 7 2012

OKZ043-047-048-071900-
JOHNSTON OK-ATOKA OK-COAL OK-
125 PM CDT TUE AUG 7 2012

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN JOHNSTON...WEST
CENTRAL ATOKA AND SOUTHWESTERN COAL COUNTIES UNTIL 200 PM CDT...

AT 125 PM CDT...A STRONG THUNDERSTORM WAS LOCATED NEAR CLARITA...
MOVING SOUTH AT 15 MPH.

HAZARDS INCLUDE...
WIND GUSTS TO 50 MPH...
MINOR FLOODING IN AREAS OF POOR DRAINAGE...
FREQUENT CLOUD TO GROUND LIGHTNING...

LOCATIONS IMPACTED INCLUDE...
WAPANUCKA...BROMIDE...CLARITA...OLNEY...COLEMAN...FILLMORE AND
BOGGY DEPOT STATE PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MONITOR THE WEATHER SITUATION CLOSELY AND BE ALERT FOR THREATENING
WEATHER CONDITIONS.

&&

LAT...LON 3421 9649 3449 9654 3455 9634 3430 9618
TIME...MOT...LOC 1820Z 341DEG 13KT 3447 9642

MBS

Special weather statement, Aug 7, 1:39 PM CDT, 55 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
139 PM CDT TUE AUG 7 2012

OKZ047-051-052-071930-
BRYAN OK-MARSHALL OK-JOHNSTON OK-
139 PM CDT TUE AUG 7 2012

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN BRYAN...EASTERN
MARSHALL AND SOUTHEASTERN JOHNSTON COUNTIES UNTIL 230 PM CDT...

AT 139 PM CDT...A STRONG THUNDERSTORM WAS LOCATED NEAR TISHOMINGO...
MOVING SOUTH AT 20 MPH.

HAZARDS INCLUDE...
WIND GUSTS TO 50 MPH...
MINOR FLOODING IN AREAS OF POOR DRAINAGE...
FREQUENT CLOUD TO GROUND LIGHTNING...

LOCATIONS IMPACTED INCLUDE...
DURANT...MADILL...TISHOMINGO...KINGSTON...RAVIA...MILBURN...SILO...
ARMSTRONG...MEAD...WOODVILLE...FILLMORE...NIDA...REAGAN...LITTLE
CITY AND MCBRIDE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MONITOR THE WEATHER SITUATION CLOSELY AND BE ALERT FOR THREATENING
WEATHER CONDITIONS.

&&

LAT...LON 3435 9682 3444 9652 3421 9640 3416 9641
      3415 9638 3397 9629 3390 9664 3392 9666
      3389 9669 3388 9676
TIME...MOT...LOC 1835Z 350DEG 17KT 3425 9661

MBS

Special weather statement, Aug 7, 1:54 PM CDT, 40 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
154 PM CDT TUE AUG 7 2012

OKZ042-043-047-071945-
JOHNSTON OK-PONTOTOC OK-COAL OK-
154 PM CDT TUE AUG 7 2012

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN JOHNSTON...
SOUTHEASTERN PONTOTOC AND SOUTHWESTERN COAL COUNTIES UNTIL 245 PM
CDT...

AT 154 PM CDT...A STRONG THUNDERSTORM WAS LOCATED NEAR PONTOTOC...
MOVING SOUTHEAST AT 20 MPH.

HAZARDS INCLUDE...
WIND GUSTS TO 50 MPH...
MINOR FLOODING IN AREAS OF POOR DRAINAGE...
FREQUENT CLOUD TO GROUND LIGHTNING...

LOCATIONS IMPACTED INCLUDE...
BROMIDE...CONNERVILLE...PONTOTOC AND JESSE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MONITOR THE WEATHER SITUATION CLOSELY AND BE ALERT FOR THREATENING
WEATHER CONDITIONS.

&&

LAT...LON 3432 9669 3453 9673 3461 9653 3442 9641
TIME...MOT...LOC 1850Z 334DEG 19KT 3452 9661

MBS

Special weather statement, Aug 7, 2:08 PM CDT, 26 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
208 PM CDT TUE AUG 7 2012

OKZ048-052-072015-
BRYAN OK-ATOKA OK-
208 PM CDT TUE AUG 7 2012

...SIGNIFICANT WEATHER ADVISORY FOR BRYAN AND SOUTHWESTERN ATOKA
COUNTIES UNTIL 315 PM CDT...

AT 208 PM CDT...A STRONG THUNDERSTORM WAS LOCATED NEAR CADDO...
MOVING SOUTH AT 20 MPH. ANOTHER STRONG THUNDERSTORM WAS NEAR
WADE...ALSO MOVING SOUTH AT 20 MPH.

HAZARDS INCLUDE...
WIND GUSTS TO 50 MPH...
MINOR FLOODING IN AREAS OF POOR DRAINAGE...
FREQUENT CLOUD TO GROUND LIGHTNING...
HAIL UP TO ONE-HALF INCH DIAMETER...

LOCATIONS IMPACTED INCLUDE...
DURANT...CADDO...BOKCHITO...ACHILLE...BENNINGTON...CANEY...KENEFIC...
KEMP...ARMSTRONG...ALBANY...BLUE...UTICA...WADE AND BENTLEY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MONITOR THE WEATHER SITUATION CLOSELY AND BE ALERT FOR THREATENING
WEATHER CONDITIONS.

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.

&&

LAT...LON 3386 9581 3384 9584 3389 9594 3386 9594
      3387 9600 3384 9601 3386 9602 3384 9605
      3384 9615 3375 9619 3377 9629 3368 9635
      3373 9639 3420 9641 3427 9609 3412 9594
      3393 9592 3387 9576 3385 9576
TIME...MOT...LOC 1901Z 354DEG 23KT 3410 9623

MBS

Special weather statement, Aug 7, 2:34 PM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
234 PM CDT TUE AUG 7 2012

OKZ041-042-047-072030-
JOHNSTON OK-PONTOTOC OK-MURRAY OK-
234 PM CDT TUE AUG 7 2012

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN JOHNSTON...
SOUTHWESTERN PONTOTOC AND NORTHEASTERN MURRAY COUNTIES UNTIL 330
PM CDT...

AT 234 PM CDT...A STRONG THUNDERSTORM WAS LOCATED NEAR ROFF...
MOVING SOUTHEAST AT 15 MPH.

HAZARDS INCLUDE...
WIND GUSTS TO 50 MPH...
MINOR FLOODING IN AREAS OF POOR DRAINAGE...
FREQUENT CLOUD TO GROUND LIGHTNING...

LOCATIONS IMPACTED INCLUDE...
ROFF...MILL CREEK...FITZHUGH...HICKORY...SCULLIN...CONNERVILLE...
PONTOTOC...REAGAN AND FITTSTOWN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MONITOR THE WEATHER SITUATION CLOSELY AND BE ALERT FOR THREATENING
WEATHER CONDITIONS.

&&

LAT...LON 3432 9647 3432 9682 3474 9693 3476 9669
TIME...MOT...LOC 1931Z 335DEG 14KT 3459 9679

MBS

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 6, 8:21 PM CDT	Special Weather Statement	OUN	Love	24 min
Aug 6, 10:49 PM CDT	Special Weather Statement	OUN	Love	26 min
Aug 7, 9:45 AM CDT	Special Weather Statement	OUN	Stephens	30 min
Aug 7, 12:23 PM CDT	Special Weather Statement	OUN	Atoka	52 min
Aug 7, 12:37 PM CDT	Severe Thunderstorm Warning	OUN	Atoka	38 min
Aug 7, 12:54 PM CDT	Special Weather Statement	OUN	Johnston	36 min
Aug 7, 1:20 PM CDT	Special Weather Statement	OUN	Atoka	25 min
Aug 7, 1:25 PM CDT	Special Weather Statement	OUN	Coal	35 min
Aug 7, 1:39 PM CDT	Special Weather Statement	OUN	Johnston, Marshall	51 min
Aug 7, 1:54 PM CDT	Special Weather Statement	OUN	Johnston	51 min
Aug 7, 2:08 PM CDT	Special Weather Statement	OUN	Bryan	67 min
Aug 7, 2:44 PM CDT	Special Weather Statement	OUN	Blaine	46 min
Aug 7, 3:12 PM CDT	Special Weather Statement	OUN	Pontotoc	48 min
Aug 7, 3:36 PM CDT	Severe Thunderstorm Warning	OUN	Garvin, McClain, Pontotoc, Pottawatomie	39 min
Aug 7, 4:16 PM CDT	Special Weather Statement	OUN	Seminole	44 min
Aug 7, 4:19 PM CDT	Special Weather Statement	OUN	Grady	26 min
Aug 7, 4:26 PM CDT	Special Weather Statement	OUN	Canadian	49 min
Aug 7, 4:30 PM CDT	Special Weather Statement	OUN	Carter, Love, Marshall, Murray	45 min
Aug 7, 4:41 PM CDT	Severe Thunderstorm Warning	OUN	Grady	34 min
Aug 7, 4:59 PM CDT	Special Weather Statement	OUN	Cleveland, Oklahoma	31 min
Aug 7, 5:20 PM CDT	Special Weather Statement	OUN	Grady	25 min
Aug 7, 5:37 PM CDT	Severe Thunderstorm Warning	OUN	Canadian, Kingfisher, Logan, Oklahoma	38 min
Aug 7, 6:14 PM CDT	Special Weather Statement	OUN	Comanche	31 min
Aug 7, 6:18 PM CDT	Special Weather Statement	OUN	McClain	42 min
Aug 7, 6:22 PM CDT	Special Weather Statement	OUN	Jefferson	53 min
Aug 7, 6:30 PM CDT	Special Weather Statement	OUN	Logan	30 min
Aug 7, 6:54 PM CDT	Special Weather Statement	OUN	Cotton	51 min
Aug 7, 6:57 PM CDT	Special Weather Statement	OUN	Hughes	33 min
Aug 7, 5:48 PM CDT	Special Weather Statement	OUN	Knox	27 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.