Severe Thunderstorm Warning 14, NWS Norman, OK

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
228 PM CST SAT MAR 10 2007

.DISCUSSION...
MAIN FOCUS IS ON UPPER LOW MOVING THROUGH THE CENTRAL ROCKIES THIS
AFTN. THIS LOW WILL CONT TO AMPLIFY THIS EVENING AND CLOSE OFF TO
OUR WEST LATE TONIGHT. EXPECT ACTIVITY TO DEVELOP TO OUR WEST THIS
EVENING AND WORK ITS WAY EAST ACROSS MUCH OF WESTERN OKLAHOMA INTO
WESTERN NORTH TEXAS OVERNIGHT AS WE COME UNDER THE INFLUENCE FROM
UPPER LOW. WE WILL ALSO SEE STRENGTHENING LLJ AND SFC FRONT ALSO AID
IN PRECIP DEVELOPMENT. AS CLOSED LOW MOVES SLOWLY SOUTH AND
SOUTHEAST INTO WEST TX ON SUNDAY SOUTHERN PLAINS WILL BE SET UP IN A
VERY FAVORABLE AREA FOR UPPER LEVEL DIFFLUENCE ALONG WITH CONT WAA
AND SFC FRONT. THIS WILL MEAN WIDESPREAD RAIN AND THUNDERSTORMS
ACROSS MOST IF NOT ALL OF OKLAHOMA AND NORTH TEXAS SUNDAY INTO
SUNDAY NIGHT. THIS SHOULD ALSO RESULT IN MANY AREAS GETTING MUCH
NEEDED RAINFALL. WIDESPREAD 2 TO 3 INCHES OF RAIN ARE NOT OUT OF THE
QUESTION BY MONDAY MORNING. ENOUGH INSTABILITY MAY EXIST TO THE
SOUTH OF THE SFC FRONT ACROSS SOUTHERN OK AND N TX FOR A FEW
STRONGER STORMS TO BE POSSIBLE.

MODELS CONT TO WOBBLE UPPER LOW OVER WEST TEXAS THROUGH TUESDAY
BEFORE PUSHING IT TOWARD THE EAST BY WEDNESDAY. WILL SPREAD POPS
FURTHER INTO THE FUTURE WITH BETTER CHANCES REMAINING ACROSS
SOUTHERN OK AND N TX CLOSER TO CENTER OF UPPER LOW.

MAY GET A BREAK IN THE PRECIP ON WED BEFORE ANOTHER COLD FRONT MOVES
SOUTH THROUGH THE AREA ON THURSDAY. THIS WILL BRING ANOTHER CHANCE
OF RAIN TO THE AREA... ALTHOUGH AMOUNTS WILL BE MUCH LIGHTER THAN
WHAT IS EXPECTED TO OCCUR OVER THE NEXT 48HRS. GFS DOES SHOW AREA OF
PRECIP DEVELOPING OVER AREA ON FRI WITH AN EMBEDDED WAVE... HOWEVER
IT APPEARS THAT THIS COULD BE AIDED BY SOME FEEDBACK ISSUES AND WILL
NOT BITE OFF ON THIS AT THIS POINT LEAVING FORECAST DRY BEYOND THURSDAY.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  55  60  51  65 /  40  90  60  40
HOBART OK         54  60  50  65 /  70  90  70  40
WICHITA FALLS TX  57  64  54  65 /  60  90  80  50
GAGE OK           48  55  45  67 /  70  90  50  30
PONCA CITY OK     50  56  46  67 /  30  80  40  30
DURANT OK         57  65  56  63 /  30  80  80  60

&&

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

26/30

HAZARDOUS WEATHER OUTLOOK...CORRECTION
NATIONAL WEATHER SERVICE NORMAN OK
1203 PM CST SAT MAR 10 2007

OKZ004>048-050>052-TXZ083>090-111200-
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-
1203 PM CST SAT MAR 10 2007

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

.DAY ONE...TODAY AND TONIGHT...

THUNDERSTORM OUTLOOK...
SEVERE THUNDERSTORMS ARE NOT EXPECTED THROUGH TONIGHT.

DISCUSSION...
SHOWERS AND THUNDERSTORMS WILL DEVELOP AND SPREAD INTO WESTERN
SECTIONS OF OKLAHOMA AND NORTH TEXAS THIS EVENING AHEAD OF A STORM
SYSTEM MOVING FROM THE ROCKIES INTO THE SOUTHERN PLAINS. THE SHOWERS
AND THUNDERSTORMS ARE EXPECTED TO AFFECT THE AREA MAINLY AFTER
MIDNIGHT.  LOW LEVEL MOISTURE AND INSTABILITY REMAIN LIMITED AND ARE
CURRENTLY EXPECTED TO BE LOW ENOUGH THAT SEVERE THUNDERSTORMS ARE
NOT LIKELY... HOWEVER THE INSTABILITY WILL INCREASE SOMEWHAT THROUGH
THE NIGHT AND MAY BE SUFFICIENT FOR SOME THUNDERSTORMS TO PRODUCE
SMALL HAIL AND MAY APPROACH MARGINALLY SEVERE LEVELS.

PROBABILITY TABLE...
VALID THROUGH 700 AM CST SUNDAY MAR 11.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
              NWS NORMAN COUNTY WARNING AREA...80 PERCENT.
PROBABILITY OF SEVERE STORMS IF STORMS OCCUR...20 PERCENT.

OTHER HAZARDOUS WEATHER...
NONE.

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

THUNDERSTORM OUTLOOK...
WIDESPREAD SHOWERS AND EMBEDDED THUNDERSTORMS ARE EXPECTED TO SPREAD
ACROSS MUCH OF WESTERN... CENTRAL AND SOUTHEAST OKLAHOMA AND WESTERN
NORTH TEXAS ON SUNDAY. INSTABILITY MAY INCREASE SUFFICIENTLY FOR
LOW CHANCES OF ISOLATED SEVERE THUNDERSTORMS ACROSS PORTIONS OF
SOUTHERN OKLAHOMA AND NORTH TEXAS... ALTHOUGH WIDESPREAD SEVERE
WEATHER IS NOT EXPECTED. IN ADDITION... THE STORM SYSTEM WILL ONLY
MOVE SLOWLY ACROSS THE REGION THIS WEEKEND ALLOWING SOME AREAS TO
RECEIVE LOCALLY HEAVY RAINFALL SUNDAY INTO SUNDAY NIGHT.

OTHER HAZARDOUS WEATHER...
NONE.

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT 7 AM
ON SUNDAY MARCH 11.