Special Weather Statement, NWS Norman, OK

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
233 PM CDT SAT AUG 9 2014

.DISCUSSION...
WEAKLY FORCED ENVIRONMENT AGAIN MAKES POPS DIFFICULT THIS
EVENING. APPEARS THAT BEST CHANCES EARLY THIS EVENING WILL BE IN
THE VICINITY OF WEAK OUTFLOW BOUNDARY SE INTO CNTRL OK FROM
SHOWERS/STORMS EARLIER THIS MORNING AND ALONG DIFFERENTIAL HEATING
BOUNDARY SOUTH OF PERSISTENT MID CLOUD DECK. LATER TONIGHT EXPECT
BETTER CHANCES TO SHIFT TOWARD NRN PARTS OF THE AREA ALONG AND
NORTH OF RETREATING BOUNDARY. ALTHOUGH SHEAR REMAINS WEAK...ENOUGH
INSTAB PRESENT FOR A FEW STRONG TO MARGINALLY SEVERE STORMS
THROUGH MID EVENING.

COLD FRONT EXPECTED TO PUSH SOUTHWARD INTO THE REGION ON SUNDAY.
DID NOT CHANGE TIMING MUCH FROM PREV FORECAST WITH THE FRONT
EXPECTED TO PUSH THROUGH NW HALF BY LATE AFTN. WILL GENERALLY
ALIGN SLIGHTLY HIGHER POPS ALONG THE FRONT THROUGH SUNDAY NIGHT.
ANOTHER HOT DAY EXPECTED FROM N TX INTO SERN HALF OF OK WITH FROPA
NOT EXPECTED UNTIL LATE AFTN OR SUNDAY NIGHT. BY MONDAY POPS WILL
BE LIMITED TO FAR SRN PARTS OF THE FA WITH COOLER HIGHS EXPECTED
AREAWIDE.

FORECAST REMAINS DRY TUESDAY THROUGH THURSDAY WITH UPPER RIDGE
BUILDING BACK INTO THE REGION. PRECIP CHANCES RETURN TO MAINLY NRN
OK AS UPPER FLOW BEGINS TO FLATTEN OUT AS DISTURBANCES MOVE
THROUGH THE CENTRAL PLAINS. TEMPS NEAR OR BLO EARLY AUGUST NORMS
TUES/WED BEFORE WARMING UP LATER IN THE WEEK.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  74  97  72  92 /  20  30  30  10
HOBART OK         73  99  72  95 /  20  30  30  10
WICHITA FALLS TX  75 102  73  97 /  20  10  30  20
GAGE OK           69  93  67  90 /  20  30  30  10
PONCA CITY OK     73  92  70  89 /  30  30  20  10
DURANT OK         75  99  74  97 /  30  10  30  30

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

25/02

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
1128 AM CDT SAT AUG 9 2014

OKZ004>048-050>052-TXZ083>090-101030-
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-
1128 AM CDT SAT AUG 9 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHERN...
WESTERN...CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH
TEXAS.

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

.THUNDERSTORMS...
ISOLATED TO SCATTERED THUNDERSTORMS ARE POSSIBLE AGAIN THIS AFTERNOON
AND TONIGHT ACROSS PARTS OF OKLAHOMA AND WESTERN NORTH TEXAS. SMALL
HAIL... GUSTY WINDS... FREQUENT LIGHTNING... AND HEAVY RAIN WILL BE
THE MAIN IMPACTS. HOWEVER... A STORM OR TWO MAY BECOME MARGINALLY
SEVERE THIS AFTERNOON AND EVENING PRODUCING HAIL TO THE SIZE OF HALF
DOLLARS AND WIND GUSTS TO 60 MPH. ANY POTENTIAL FOR SEVERE STORMS
WILL DECREASE AFTER SUNSET.

.HEAT...
HEAT INDEX VALUES WILL AGAIN REACH NEAR OR ABOVE 100 OVER MUCH OF
THE AREA THIS AFTERNOON. TAKE PRECAUTIONS TO PREVENT HEAT-RELATED
ILLNESS.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY...

.HEAT...
HIGH TEMPERATURES AND HEAT INDEX VALUES ARE EXPECTED TO PERSIST
INTO EARLY NEXT WEEK. AFTERNOON HEAT INDEX VALUES WILL BE NEAR OR
ABOVE 100 THROUGH THE AREA SUNDAY AND AGAIN ACROSS SOUTHERN
OKLAHOMA AND NORTH TEXAS ON MONDAY.

.THUNDERSTORMS...
AT LEAST LOW STORM CHANCES REMAIN THROUGH MONDAY. THE SEVERE
WEATHER RISK REMAINS LOW.

GET GRAPHICS AND MORE DETAILS AT WEATHER.GOV/NORMAN...AND FOLLOW
OUR WEATHER FORECAST OFFICE ON TWITTER AND FACEBOOK.

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
342 PM CDT SAT AUG 9 2014

OKZ048-092115-
ATOKA OK-
342 PM CDT SAT AUG 9 2014

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN ATOKA COUNTY UNTIL 415 PM
CDT...

AT 340 PM CDT...A STRONG THUNDERSTORM WAS LOCATED 4 MILES NORTH OF
LANE...MOVING NORTHEAST AT 25 MPH.

HAZARDS INCLUDE...
HAIL UP TO THE SIZE OF NICKELS...
WIND GUSTS TO 40 MPH...
MINOR FLOODING IN AREAS OF POOR DRAINAGE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3451 9568 3451 9578 3435 9578 3425 9591
      3435 9614 3466 9588 3460 9588 3459 9567
TIME...MOT...LOC 2040Z 238DEG 24KT 3436 9599

30

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
358 PM CDT SAT AUG 9 2014

TXZ088-089-092130-
BAYLOR TX-ARCHER TX-
358 PM CDT SAT AUG 9 2014

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN BAYLOR AND
SOUTHWESTERN ARCHER COUNTIES UNTIL 430 PM CDT...

AT 355 PM CDT...STRONG THUNDERSTORMS WERE ALONG A LINE EXTENDING FROM
3 MILES NORTHEAST OF MEGARGEL TO 10 MILES WEST OF WESTOVER...MOVING
NORTH AT 10 MPH.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3365 9936 3370 9871 3341 9875 3339 9919
      3340 9932
TIME...MOT...LOC 2055Z 176DEG 8KT 3348 9887 3344 9918

30

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
413 PM CDT SAT AUG 9 2014

OKZ045-TXZ090-092145-
JEFFERSON OK-CLAY TX-
413 PM CDT SAT AUG 9 2014

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN JEFFERSON AND
NORTHEASTERN CLAY COUNTIES UNTIL 445 PM CDT...

AT 411 PM CDT...A STRONG THUNDERSTORM WAS LOCATED 6 MILES EAST OF
HENRIETTA...MOVING NORTHEAST AT 20 MPH.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3368 9831 3412 9808 3403 9781 3386 9789
      3388 9794 3388 9798 3369 9797 3366 9799
TIME...MOT...LOC 2111Z 218DEG 17KT 3385 9809

30