HAZARDOUS WEATHER OUTLOOK
Issue Date: 431 PM CST WED DEC 23 2009
Expiration: 445 PM CST THU DEC 24 2009
THIS HAZARDOUS WEATHER OUTLOOK IS FOR EXTREME SOUTHEAST ARKANSAS
AND PORTIONS OF NORTHEAST LOUISIANA AND FAR WEST CENTRAL AND
NORTHWEST MISSISSIPPI.
.DAY ONE...TONIGHT AND THURSDAY
A POWERFUL STORM SYSTEM IS EXPECTED TO PUSH ACROSS THE REGION ON
THURSDAY AND BRING HEAVY RAIN...THUNDERSTORMS AND GUSTY WINDS TO THE
AREA. FLASH FLOODING IS POSSIBLE WITH ADDITIONAL RAINFALL AMOUNTS
THROUGH THURSDAY AFTERNOON EXPECTED TO RANGE FROM 2 TO 4 INCHES.
SEVERE THUNDERSTORMS ARE ALSO POSSIBLE...ESPECIALLY BETWEEN DAYBREAK
AND EARLY AFTERNOON TOMORROW. A FLASH FLOOD WATCH IS IN EFFECT FOR
THESE AREAS FROM MIDNIGHT TONIGHT THROUGH 6 PM ON THURSDAY.
EXPECT RAINFALL AND EMBEDDED THUNDERSTORMS TO INCREASE LATER TONIGHT
AS A WARM FRONT PUSHES NORTH INTO THE AREA. SOME OF THESE STORMS
BETWEEN MIDNIGHT AND DAYBREAK THURSDAY COULD BE CAPABLE OF PRODUCING
SMALL HAIL AND FREQUENT LIGHTNING...BUT ARE GENERALLY NOT EXPECTED TO
BE SEVERE. THE MAIN RISK FOR SEVERE WEATHER WILL COME THURSDAY
BETWEEN MID MORNING AND EARLY AFTERNOON AS A SQUALL LINE OF
THUNDERSTORMS MOVES THROUGH JUST AHEAD OF AN ADVANCING COLD FRONT.
DAMAGING WIND GUSTS OF 50 TO 60 MPH WILL BE POSSIBLE WITH THIS
SQUALL LINE AND AN ISOLATED TORNADO CANNOT BE RULED OUT.
IN ADDITION TO THE POTENTIAL FOR HIGH WINDS WITH THE SQUALL
LINE...WINDS WILL ALSO BE EXTREMELY GUSTY LATE TONIGHT AND THROUGH
MUCH OF THURSDAY AWAY FROM STORMS DUE TO A VERY TIGHT PRESSURE
GRADIENT OVER THE REGION. THESE GUSTS COULD PEAK UP TO 40 MPH
THURSDAY MORNING AND A WIND ADVISORY IS IN EFFECT FROM MIDNIGHT
TONIGHT THROUGH NOON THURSDAY.
.DAYS TWO THROUGH SEVEN...THURSDAY NIGHT THROUGH TUESDAY
NO WIDESPREAD HAZARDOUS WEATHER IS EXPECTED.
.SPOTTER CALL TO ACTION STATEMENT...
THE ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS...AND
EMERGENCY MANAGEMENT PERSONNEL IN SUPPORT OF SEVERE WEATHER
OPERATIONS...WILL BE NEEDED ON THURSDAY...BUT IS OTHERWISE NOT
ANTICIPATED THROUGH NEXT TUESDAY.
SPECIAL WEATHER STATEMENT
Issue Date: 250 PM CST WED DEC 23 2009
Expiration: 800 PM CST WED DEC 23 2009
...INTENSE STORM SYSTEM TO AFFECT THE REGION CHRISTMAS EVE...
SEVERE THUNDERSTORMS...WINDY CONDITIONS...AND LOCALIZED FLOODING
WILL ALL BE POSSIBLE CHRISTMAS EVE AS A STRONG WEATHER SYSTEM AFFECTS
THE AREA.
AN UNUSUALLY INTENSE LOW PRESSURE CENTER WILL BE PASSING FROM
NORTHERN LOUISIANA ACROSS ARKANSAS INTO SOUTHERN MISSOURI THURSDAY.
THE LOW WILL PUSH A STRONG COLD FRONT ACROSS THE REGION FROM WEST TO
EAST THURSDAY AFTERNOON. AHEAD OF THE FRONT...A LINE OF STRONG TO
SEVERE THUNDERSTORMS WILL DEVELOP AND SWEEP ACROSS THE AREA FROM
LATE MORNING THROUGH THE AFTERNOON HOURS. ADDITIONALLY...A FEW STRONG
TO SEVERE STORMS COULD DEVELOP AHEAD OF THE LINE...WITH THE RISK OF
THIS ACTIVITY STARTING WEST OF THE MISSISSIPPI RIVER LATE TONIGHT.
THE GREATEST RISK FOR SEVERE WEATHER LOOKS TO BE SOUTH OF
INTERSTATE 20. THE THREAT FOR NUMEROUS DAMAGING WIND GUSTS...WITH THE
POTENTIAL FOR WIND GUSTS IN EXCESS OF 70 MPH...WILL EXIST IN THIS
AREA ALONG WITH THE POSSIBILITY OF TORNADOES. FARTHER TO THE NORTH...
THE SEVERE WEATHER RISK WILL BE SOMEWHAT LESS...BUT DAMAGING WINDS OF
60 MPH WILL BE POSSIBLE ALONG WITH A SLIGHT RISK OF A TORNADO.
EVEN OUTSIDE OF THE THUNDERSTORMS...THE LOW PRESSURE SYSTEM WILL
PRODUCE STRONG SOUTH TO SOUTHEAST WINDS LATE TONIGHT AND THURSDAY.
SUSTAINED WINDS OF 15 TO 30 MPH...WITH GUSTS UP TO 40 MPH...WILL BE
COMMON...WITH THE STRONGEST WINDS IN THE MISSISSIPPI DELTA REGION.
THESE TYPES OF WINDS CAN CAUSE LARGE LIMBS AND A FEW TREES TO BE
DOWNED.
FINALLY...VERY HEAVY DOWNPOURS WILL OCCUR WITH THE STRONGEST STORMS
LATE TONIGHT AND THURSDAY. THIS WILL CAUSE LOCALIZED FLOODING OF LOW
LYING AND POOR DRAINAGE AREAS. TOTAL RAINFALL AMOUNTS OF 2 TO 4
INCHES WILL BE COMMON. FLASH FLOOD WATCHES HAVE BEEN ISSUED FOR
NORTHERN AND WESTERN PORTIONS OF THE ARKLAMISS...AND MAY NEED TO BE
EXPANDED THURSDAY.
WITH MANY PEOPLE TRAVELING TO HOLIDAY FESTIVITIES THURSDAY...IT IS
EXTRA IMPORTANT TO KEEP AWARE OF THE WEATHER SITUATION. PEOPLE SHOULD
BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS...AND LISTEN FOR
POSSIBLE WATCHES AND WARNINGS.
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