Hazardous weather outlook, National Weather Service, Norman

 

522 PM CDT FRI JUL 29 2011

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

.DAY ONE…THIS EVENING AND TONIGHT…

THUNDERSTORM OUTLOOK…
A FEW THUNDERSTORMS SHOULD PERSIST THROUGH THE EARLY EVENING HOURS.
WIND GUSTS OVER 55 MPH ARE POSSIBLE WITH THE STRONGER STORMS.

DISCUSSION…
SCATTERED THUNDERSTORMS ARE EXPECTED TO CONTINUE NEAR AN OUTFLOW
BOUNDARY ACROSS NORTHWEST OKLAHOMA INTO EARLY EVENING. OTHER STORMS
MAY AFFECT PORTIONS OF SOUTH CENTRAL AND SOUTHEAST OKLAHOMA.  STORM
INTENSITY WILL DECREASE DURING THE EARLY TO MID EVENING HOURS. 
ALTHOUGH INSTABILITY WILL BE WEAK…ANY STORMS THAT OCCUR WILL POSE
A THREAT TO PRODUCE LOCALLY DAMAGING WINDS. CLOUD TO GROUND
LIGHTNING AND LIGHTNING INDUCED FIRES ARE ALSO A HAZARD…ALONG WITH
LOCALIZED HEAVY RAINFALL.

PROBABILITY TABLE…
VALID THROUGH 700 AM CDT SATURDAY JUL 30.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
              NWS NORMAN COUNTY WARNING AREA…100 PERCENT.
PROBABILITY OF SEVERE STORMS IF STORMS OCCUR…30 PERCENT.

OTHER HAZARDOUS WEATHER…
A HEAT ADVISORY REMAINS IN EFFECT…AS A DANGEROUS HEAT WAVE
CONTINUES.

.DAYS TWO THROUGH SEVEN…SATURDAY THROUGH THURSDAY…

THUNDERSTORM OUTLOOK…
THE NATIONAL HURRICANE CENTER FORECASTS TROPICAL STORM DON TO MOVE
INLAND OVER FAR SOUTH TEXAS. THE TROPICAL STORM WILL NOT AFFECT
NORTH TEXAS OR OKLAHOMA DIRECTLY. INCREASED HIGH LEVEL
MOISTURE…HOWEVER…MAY LEAD TO A SLIGHT INCREASE IN AFTERNOON
THUNDERSTORM ACTIVITY ON SATURDAY AND SUNDAY…MAINLY ACROSS WESTERN
NORTH TEXAS AND SOUTHERN OKLAHOMA. GENERALLY SPEAKING…THUNDERSTORM
CHANCES WILL REMAIN VERY LOW THROUGH THURSDAY.

OTHER HAZARDOUS WEATHER…
THE HEAT ADVISORY IS EFFECTIVE THROUGH SUNDAY AND IS LIKELY TO BE
EXTENDED WELL INTO NEXT WEEK. LONG RANGE FORECASTS CONTINUE TO SHOW
NO SIGNS THAT THE HEAT WAVE WILL BREAK. UNUSUALLY DRY VEGETATION
WILL ALSO MAINTAIN VERY HIGH WILDFIRE POTENTIAL…ESPECIALLY ON
BREEZY DAYS.

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