Hazardous weather outlook, National Weather Service, Norman

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1125 AM CDT MON AUG 29 2011

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

.DAY ONE…THIS AFTERNOON AND TONIGHT…

THUNDERSTORM OUTLOOK…
THERE WILL BE A CHANCE OF THUNDERSTORMS THIS AFTERNOON AND EVENING.
ISOLATED SEVERE STORMS WILL BE POSSIBLE.

DISCUSSION…
A COLD FRONT OVER KANSAS AND NORTHWEST OKLAHOMA WILL ADVANCE SLOWLY
SOUTH THIS AFTERNOON. THIS FRONT WILL MERGE WITH AN OUTFLOW BOUNDARY
THAT WILL MOVE NORTHWEST THE SAME AREA. IN ADDITION…AN UPPER-LEVEL
DISTURBANCE WILL BE OVER THE TEXAS PANHANDLE AND WESTERN OKLAHOMA.
THIS COMBINATION OF SYSTEMS WILL RESULT IN A CHANCE OF THUNDERSTORMS
AGAIN THIS AFTERNOON AND EVENING ACROSS NORTHWEST OKLAHOMA.
ELSEWHERE IN OKLAHOMA AND NORTH TEXAS…INTENSE AFTERNOON HEATING
WILL AGAIN RESULT IN THE POSSIBILITY OF ISOLATED SHOWERS AND
THUNDERSTORMS. WITH DRY CONDITIONS IN THE LOWER LEVELS OF THE
ATMOSPHERE…ANY SIGNIFICANT SHOWER OR THUNDERSTORM WILL BE CAPABLE
OF PRODUCING GUSTY OR POTENTIALLY DAMAGING WINDS. THUNDERSTORM
CHANCES WILL PERSIST TONIGHT BUT THE POTENTIAL FOR STRONG TO SEVERE
THUNDERSTORMS WILL DECREASE WITH TIME.

PROBABILITY TABLE…
VALID THROUGH 700 AM CDT TUESDAY AUG 30.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
              NWS NORMAN COUNTY WARNING AREA…60 PERCENT.
PROBABILITY OF SEVERE STORMS IF STORMS OCCUR…40 PERCENT.

OTHER HAZARDOUS WEATHER…
A HEAT ADVISORY REMAINS IN EFFECT ACROSS SOUTHERN OKLAHOMA AND
WESTERN NORTH TEXAS. FIRE DANGER ALSO REMAINS HIGH.

.DAYS TWO THROUGH SEVEN…TUESDAY THROUGH SUNDAY…

THUNDERSTORM OUTLOOK…
THERE IS A SLIGHT CHANCE OF THUNDERSTORMS ACROSS NORTHERN OKLAHOMA
ON TUESDAY. THUNDERSTORM CHANCES RETURN ON THURSDAY NIGHT AND
PERSIST THROUGH THE WEEKEND.

OTHER HAZARDOUS WEATHER…
THE HEAT ADVISORY REMAINS IN EFFECT ACROSS SOUTHERN OKLAHOMA AND
WESTERN NORTH TEXAS THROUGH AT LEAST WEDNESDAY. FIRE DANGER WILL
REMAIN HIGH TO VERY HIGH THROUGH FRIDAY… ESPECIALLY WITH DRY AND
WINDY CONDITIONS EXPECTED ON TUESDAY. A FIRE WEATHER WATCH IS IN
EFFECT FOR TUESDAY.

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