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Status: Alert

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
520 AM CDT FRI APR 25 2008

ARZ001-002-010-011-019-020-029-OKZ049-053>076-261000-
ADAIR OK-BENTON AR-CARROLL AR-CHEROKEE OK-CHOCTAW OK-CRAIG OK-
CRAWFORD AR-CREEK OK-DELAWARE OK-FRANKLIN AR-HASKELL OK-LATIMER OK-
LE FLORE OK-MADISON AR-MAYES OK-MCINTOSH OK-MUSKOGEE OK-NOWATA OK-
OKFUSKEE OK-OKMULGEE OK-OSAGE OK-OTTAWA OK-PAWNEE OK-PITTSBURG OK-
PUSHMATAHA OK-ROGERS OK-SEBASTIAN AR-SEQUOYAH OK-TULSA OK-WAGONER OK-
WASHINGTON OK-WASHINGTON AR-
520 AM CDT FRI APR 25 2008

THIS OUTLOOK IS FOR NORTHWEST AND WEST CENTRAL ARKANSAS AS WELL AS
MUCH OF EASTERN OKLAHOMA.

.DAY ONE...TODAY AND TONIGHT.

SEVERE THUNDERSTORM.
RISK...ELEVATED.
AREA...EASTERN OKLAHOMA AND NORTHWEST ARKANSAS .
ONSET...AFTER 8 AM.

AREA AT GREATEST RISK...FAR EASTERN OKLAHOMA AND NORTHWEST ARKANSAS...
AFTER 10 AM.

DISCUSSION...
A SURFACE COLD FRONT WAS LOCATED ACROSS ACROSS NORTHWEST OKLAHOMA
EARLY THIS MORNING. THIS BOUNDARY WILL CONTINUE TO MOVE EAST THIS
MORNING. WHILE A STRONG INVERSION IS CURRENTLY IN
PLACE...THUNDERSTORMS MAY DEVELOP AFTER SUNRISE AS THE INVERSION
WEAKENS ONCE HEATING COMMENCES. WHILE THUNDERSTORM CHANCES APPEAR
LOWEST ACROSS THE WESTERN SECTIONS OF THE REGION...A HIGHER
CONDITIONAL SEVERE PROBABILITY EXISTS AS AMPLE ELEVATED AND SURFACE
INSTABILITY COMBINED WITH A STRONG LOW LEVEL JET OF 50 TO 60 KNOTS
WILL BE IN PLACE THIS MORNING. AS THE FRONT MOVES FURTHER INTO
EASTERN OKLAHOMA AND NORTHWEST ARKANSAS BY AFTERNOON...AREAL
COVERAGE ALONG THE FRONT IS EXPECTED TO INCREASE AS THE INVERSION
ERODES AND SURFACE BASE INSTABILITY BECOMES MAXIMIZED. LARGE HAIL
AND DAMAGING STRAIGHT LINE WINDS CAN BE EXPECTED WITH ANY SEVERE
STORMS TODAY. ANY SEVERE WEATHER THREAT WILL END FROM WEST TO EAST
ONCE FRONTAL PASSAGE OCCURS. DRIER AND COOLER AIR WILL FILTER ACROSS
ALL OF THE AREA BY TONIGHT.

SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT...
SPOTTER ACTIVATION MAY BE NEEDED.