Hazardous weather outlook, National Weather Service, Norman

 

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1141 AM CDT WED JUN 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…
ISOLATED SEVERE STORMS WILL BE POSSIBLE IN PARTS OF SOUTHERN
OKLAHOMA LATE THIS AFTERNOON AND EVENING.

DISCUSSION…
A FEW ISOLATED STORMS COULD DEVELOP LATE THIS AFTERNOON AND EARLY
EVENING DUE TO AFTERNOON HEATING. THE MOST LIKELY AREA WOULD BE IN
SOUTH CENTRAL AND SOUTHEAST OKLAHOMA WHERE THE RICHER MOISTURE IS
LOCATED AND THE AIRMASS WAS LESS DISRUPTED BY THE EARLY MORNING
CONVECTION. AN ISOLATED STORM OR TWO MAY ALSO BE POSSIBLE IN OTHER
LOCATIONS NEAR ANY RESIDUAL BOUNDARY LEFT IN THE AREA. HOWEVER…
MOST OF THESE BOUNDARIES ARE EXPECTED TO DISSIPATE BY LATE THIS
AFTERNOON. IF STORMS DO DEVELOP… STRONG WIND GUSTS TO 60 MPH AND
HAIL TO THE SIZE OF HALF DOLLARS WILL BE THE MAIN CONCERNS. CLOUD TO
GROUND LIGHTNING AND HEAVY DOWNPOURS WILL ALSO BE A CONCERN.
THUNDERSTORM CHANCES ARE EXPECTED TO END AFTER SUNSET THIS EVENING.

PROBABILITY TABLE…
VALID THROUGH 700 AM CDT THURSDAY JUN 30.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
              NWS NORMAN COUNTY WARNING AREA…20 PERCENT.
PROBABILITY OF SEVERE STORMS IF STORMS OCCUR…40 PERCENT.

OTHER HAZARDOUS WEATHER…
TRIPLE DIGIT HEAT WILL RETURN TO MUCH OF THE AREA THIS AFTERNOON.
HIGH TEMPERATURES ARE FORECAST TO APPROACH 110 IN PARTS OF
SOUTHWESTERN OKLAHOMA AND WESTERN NORTH TEXAS… WITH HEAT INDICES
IN MANY AREAS APPROACHING OR EXCEEDING 105.

TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE…RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN POSSIBLE
AND DRINK PLENTY OF WATER.

TO REDUCE RISK DURING OUTDOOR WORK THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS
IN SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY HEAT
SHOULD BE MOVED TO A COOL AND SHADED LOCATION.

.DAYS TWO THROUGH SEVEN…THURSDAY THROUGH TUESDAY…

THUNDERSTORM OUTLOOK…
ORGANIZED THUNDERSTORMS ARE NOT EXPECTED.

OTHER HAZARDOUS WEATHER…
HOT WEATHER WILL PERSIST THROUGH SEVEN DAYS. HEAT INDICES WILL
GENERALLY RANGE BETWEEN 100 AND 105 DEGREES. PEOPLE SHOULD USE
CAUTION TO AVOID HEAT STRESS AND MONITOR INFORMATION FROM THE
NATIONAL WEATHER SERVICE AND PUBLIC OFFICIALS.

EXCEPTIONAL DROUGHT CONDITIONS ACROSS WESTERN OKLAHOMA AND WESTERN
NORTH TEXAS WILL CONTINUE TO ELEVATE THE RISK OF WILDFIRES. A FIRE
WEATHER WATCH HAS BEEN ISSUED FOR THURSDAY AFTERNOON FOR MUCH OF
WESTERN AND NORTHERN OKLAHOMA.

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