Potential Severe Weather

Oklahoma County has been placed in a Severe Thunderstorm WATCH area until 10:00 PM. There is currently no severe weather near, or threatening Oklahoma County, however, due to a cold front that is approaching from the northwest, and the presence of significant moisture in central Oklahoma, the possibility of severe thunderstorm development is present. Below is part of the actual WATCH information provided from the Storm Prediction Center (SPC) in Norman

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 742
NWS STORM PREDICTION CENTER NORMAN OK
200 PM CDT MON SEP 21 2009

THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

EXTREME NORTHWEST ARKANSAS
SOUTHEAST KANSAS
SOUTHWEST AND CENTRAL MISSOURI
CENTRAL AND EASTERN OKLAHOMA
EXTREME NORTHWEST TEXAS

EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 200 PM UNTIL
1000 PM CDT.

HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 75
STATUTE MILES EAST AND WEST OF A LINE FROM 50 MILES NORTH
NORTHWEST OF SPRINGFIELD MISSOURI TO 40 MILES SOUTH SOUTHEAST OF
WICHITA FALLS TEXAS.

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.

DISCUSSION...THUNDERSTORMS WILL GRADUALLY INCREASE IN
COVERAGE/INTENSITY ACROSS MO/SE KS AND OK THIS AFTERNOON AS THE LOW
LEVELS CONTINUE TO DESTABILIZE IN ADVANCE OF A COLD FRONT AND
PRE-FRONTAL TROUGH. DEEP LAYER VERTICAL SHEAR IS SOMEWHAT MARGINAL
FOR SUPERCELLS IN THE WARM SECTOR...WHILE MLCAPE VALUES RANGE FROM
2000-3000 J/KG BASED ON SURFACE TEMPERATURES IN THE 80S WITH
BOUNDARY LAYER DEWPOINTS OF 68-70 F. IT APPEARS THAT LARGE HAIL AND
DAMAGING WINDS WILL BE THE MAIN SEVERE THREATS THIS AFTERNOON. THE
SEVERE THREAT WILL CONTINUE INTO THIS EVENING AND EARLY TONIGHT AS
STORMS GRADUALLY EVOLVE INTO AN EXTENSIVE BAND ALONG THE FRONT AND
SPREAD EWD/SEWD.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 26025.

Flooding Expected in The Central States

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH...CORRECTED
NATIONAL WEATHER SERVICE NORMAN OK
1228 PM CDT WED SEP 10 2008

...CORRECTED SECOND LINE OF THE SYNOPSIS TEXT...

...OCCASIONAL AREAS OF FLOODING RAIN LIKELY THROUGH THE WEEKEND...

.FOR SEVERAL DAYS...AN UPPER LEVEL TROUGH WILL ANCHOR A MODERATELY
STRONG JET STREAM FROM THE BAJA PENINSULA ACROSS MEXICO...WESTERN
NORTH TEXAS AND OKLAHOMA. THE JET STREAM WILL COMBINE WITH A COLD
FRONT...AND DEEP MOISTURE...TO PRODUCE WIDESPREAD HEAVY RAIN. THE
AXIS OF GREATEST RAIN WILL LIFT FROM THE RED RIVER TOWARD WESTERN
AND NORTHERN OKLAHOMA FROM TODAY THROUGH FRIDAY. THIS ALONE WILL
RESULT IN SOME FLOODING. THEN THE REMNANTS OF HURRICANE IKE ARE
EXPECTED TO AFFECT A GOOD PART OF THE REGION BEGINNING LATE
SATURDAY. IKE MAY BRING EXTREMELY HEAVY RAIN...WHICH IS CURRENTLY
EXPECTED CLOSE TO AND EAST OF INTERSTATE 44...BUT THIS PATH COULD
CHANGE. THE COMBINATION OF THE TWO WEATHER SYSTEMS MAY PRODUCE
SIGNIFICANT FLOODING OVER A LARGE AREA...AND COULD LINGER INTO
EARLY NEXT WEEK.

OKZ004>048-050>052-TXZ083>090-110145-
/O.NEW.KOUN.FA.A.0004.080910T1728Z-080914T1700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
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-
INCLUDING THE CITIES OF...BUFFALO...ALVA...CHEROKEE...MEDFORD...
PONCA CITY...ARNETT...WOODWARD...FAIRVIEW...ENID...PERRY...
CHEYENNE...TALOGA...WEATHERFORD...CLINTON...WATONGA...
KINGFISHER...GUTHRIE...STILLWATER...ELK CITY...SAYRE...CORDELL...
ANADARKO...YUKON...EL RENO...MUSTANG...OKLAHOMA CITY...CHANDLER...
CHICKASHA...PURCELL...NORMAN...MOORE...SHAWNEE...SEMINOLE...
HOLDENVILLE...HOLLIS...MANGUM...HOBART...ALTUS...FREDERICK...
LAWTON...DUNCAN...PAULS VALLEY...SULPHUR...ADA...COALGATE...
WALTERS...WAURIKA...ARDMORE...TISHOMINGO...ATOKA...MARIETTA...
MADILL...DURANT...QUANAH...CHILLICOTHE...CROWELL...VERNON...
WICHITA FALLS...MUNDAY...KNOX CITY...SEYMOUR...ARCHER CITY...
HOLLIDAY...LAKESIDE CITY...HENRIETTA
1228 PM CDT WED SEP 10 2008

...FLOOD WATCH IN EFFECT THROUGH SUNDAY MORNING...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A

* FLOOD WATCH FOR PORTIONS OF OKLAHOMA AND NORTHERN TEXAS...
INCLUDING THE FOLLOWING AREAS...IN OKLAHOMA...ALFALFA...
ATOKA...BECKHAM...BLAINE...BRYAN...CADDO...CANADIAN...CARTER...
CLEVELAND...COAL...COMANCHE...COTTON...CUSTER...DEWEY...
ELLIS...GARFIELD...GARVIN...GRADY...GRANT...GREER...HARMON...
HARPER...HUGHES...JACKSON...JEFFERSON...JOHNSTON...KAY...
KINGFISHER...KIOWA...LINCOLN...LOGAN...LOVE...MAJOR...
MARSHALL...MCCLAIN...MURRAY...NOBLE...OKLAHOMA...PAYNE...
PONTOTOC...POTTAWATOMIE...ROGER MILLS...SEMINOLE...STEPHENS...
TILLMAN...WASHITA...WOODS AND WOODWARD. IN NORTHERN TEXAS...
ARCHER...BAYLOR...CLAY...FOARD...HARDEMAN...KNOX...WICHITA AND
WILBARGER.

* THROUGH SUNDAY MORNING

* EXCESSIVE RAIN MAY GRADUALLY LEAD TO WIDESPREAD FLOODING

* GRADUAL ACCUMULATIONS OF HEAVY RAIN WILL BEGIN IN WESTERN NORTH
TEXAS...AND SPREAD NORTH AND EASTWARD ACROSS OKLAHOMA. HEAVY
RAIN MAY PERSIST IN WESTERN AND NORTHERN OKLAHOMA INTO THE EARLY
PART OF THE WEEKEND. THEN THE REMNANTS OF HURRICANE IKE WILL
AFFECT THE REGION BEGINNING LATE SATURDAY. ALTHOUGH THE EXACT
TRACK OF IKE IS UNCERTAIN...IT IS VERY LIKELY TO AFFECT SOME
PARTS OF THE REGION...WITH GREATER ODDS ALONG AND EAST OF A
WICHITA FALLS TO ENID LINE. IKE COULD BRING EXTREMELY HEAVY
RAIN...AND CAUSE WIDESPREAD FLOODING.

A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON
CURRENT FORECASTS.

YOU SHOULD MONITOR LATER FORECASTS AND BE ALERT FOR POSSIBLE
FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE
PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP. REMEMBER THAT
WITH ONGOING RAIN...PREPARATIONS OF PROPERTY AND LIVESTOCK MAY
REQUIRE MORE TIME.

Weather Post From Central Oklahoma

From:  Bonnie (stormspotter)

 

September 6, 2007

 

The National Weather Service said remnants of Hurricane Henriette and a cold front are on track to merge over the state on Friday and possibly dump a lot of water on the region before moving east.

Southwestern Oklahoma received a taste of things to come Thursday evening, when severe thunderstorms moved into the area from the Texas Panhandle. A severe thunderstorm warning was issued for Beckham, Greer, Harmon and Washita counties for storms packing 65-mph winds and nickel-sized hail.

Elsewhere, skies were partly cloudy and temperatures ranged from 88 degrees in Muskogee to a blistering 102 degrees in Guymon. The mercury peaked at 91 degrees in Bartlesville and Tulsa and hit 92 degrees in Oklahoma City and Ponca City, forecasters said.

The heavy rain makes flooding and flash-flooding a real possibility over the weekend, forecasters said, and another approaching storm system expected by Monday could exacerbate the situation.

Skies should be mostly cloudy through Saturday with thunderstorms likely Friday and Saturday. Highs should reach the 80s and 90s on Friday and cool into the 80s on Saturday. Lows should dip into the 60s and 70s both nights, according to weather service forecasts.

A chance of storms will linger into Sunday and Monday, with temperatures holding in the 80s both days and lows in the 50s and 60s expected.

Skies should turn partly cloudy by Tuesday, with temperatures peaking in the 70s and 80s before ranging from the upper 40s in the northwest to the lower 60s in the southeast.