Severe Thunderstorm Warning 578, NWS Jackson, MS

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSON MS
1057 AM CST TUE DEC 12 2006

.DISCUSSION...FRONT IS SLOWLY MOVING INTO THE WRN ZONES OF THE CWA
WITH MOST OF THE RAIN NOW EAST OF I 55. LARGE AMOUNT OF DRY AIR
MOVING IN BEHIND THE PRECIP AS EVIDENT ON WV. EXPECT THIS RAIN TO
CONTINUE TO PROGRESS EAST AND MOVE OUT OF THE CWA AROUND THE
BEGINNING OF THE EVENING. BEHIND IT CLOUDS WILL BEGIN TO CLEAR OUT
AND TEMPS SHOULD RISE INTO THE UPPER 60S TO LOWER 70S ALONG AND EAST
OF I 55 WHERE CLOUDS WILL HANG AROUND LONGER SHOULD ONLY SEE HIGHS
IN THE MID TO UPPER 60S. OVERALL THE FORECAST LOOKS TO BE ON TRACK.
WILL ONLY MAKE SOME ADJUSTMENTS TO END RAIN A LITTLE SOONER ACROSS
WRN MS. ZONES AND GRIDS OUT SHORTLY.

&&

.AVIATION...STILL CONCERNED WITH THE ONGOING RAIN BUT FOG COULD BE
AN EVEN BIGGER PROBLEM TONIGHT. RAIN HAS MOVED THROUGH HALF OF THE
CWA AND SHOULD BE THROUGH ERN MS BY 00Z. AS THE RAIN MOVES THROUGH
CEILINGS WILL CONTINUE TO LIFT. PLACES WHERE THE RAIN FALLS WILL
CAUSE VISBIES PROBLEMS. MAINLY MVFR CONDITIONS WILL BE IN PLACE WITH
THE RAIN BUT THEY MAY DROP TO IFR TEMPORARILY.

AFTER THE RAIN MOVES OUT SKIES WILL START TO CLEAR. THE CLEARING
WINDOW WILL SET THE STAGE FOR DENSE FOG TO DEVELOP. I WILL BEGIN
REDUCING VIS AROUND 03-07Z FROM W TO E. I WILL HIT THE FOG HARD AND
CARRY 1/2 TO 1/4SM FOR ALL SITES AFTER 07-09Z.

&&

.JAN WATCHES/WARNINGS/ADVISORIES...
MS...NONE.
LA...NONE.
AR...NONE.
&&

CAB

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSON MS
0423 AM CST TUE DEC 12 2006

ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>066-072>074-
131023-
ADAMS-ASHLEY-ATTALA-BOLIVAR-CARROLL-CATAHOULA-CHICOT-CHOCTAW-
CLAIBORNE-CLARKE-CLAY-CONCORDIA-COPIAH-COVINGTON-EAST CARROLL-
FORREST-FRANKLIN LA-FRANKLIN MS-GRENADA-HINDS-HOLMES-HUMPHREYS-
ISSAQUENA-JASPER-JEFFERSON-JEFFERSON DAVIS-JONES-KEMPER-LAMAR-
LAUDERDALE-LAWRENCE-LEAKE-LEFLORE-LINCOLN-LOWNDES-MADISON LA-
MADISON MS-MARION-MONTGOMERY-MOREHOUSE-NESHOBA-NEWTON-NOXUBEE-
OKTIBBEHA-RANKIN-RICHLAND-SCOTT-SHARKEY-SIMPSON-SMITH-SUNFLOWER-
TENSAS-WARREN-WASHINGTON-WEBSTER-WEST CARROLL-WINSTON-YAZOO-
0423 AM CST TUE DEC 12 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL MISSISSIPPI...
NORTHEAST LOUISIANA...AND EXTREME SOUTHEAST ARKANSAS

.DAY ONE...TODAY AND TONIGHT...

...THUNDERSTORMS...
A FEW STRONG THUNDERSTORMS WILL BE POSSIBLE TODAY AS A POTENT
UPPER LEVEL TROUGH AND ASSOCIATED FRONTAL SYSTEM MOVE ACROSS THE
REGION. INSTABILITY OVER THE AREA WILL BE QUITE WEAK...BUT STRONG
WINDS ALOFT WILL AT LEAST SUPPORT THE POTENTIAL FOR SOME STORMS
TO CONTAIN GUSTY WINDS. THE MAIN AREAS THAT MAY SEE THESE STRONG
STORMS WILL BE SOUTH OF A LINE FROM WINNSBORO LOUISIANA TO
GRENADA MISSISSIPPI.

THE AREA OF SHOWERS AND STORMS WILL STEADILY PUSH EAST ACROSS THE
REGION TODAY WITH AN END TO THE ACTIVITY OCCURRING BY 6 OR 8 PM
ACROSS THE FAR EAST.

...NON PRECIPITATION...
DENSE FOG WILL BE POSSIBLE AFTER MIDNIGHT TONIGHT ACROSS ALL
AREAS. THIS FOG WILL BE POSSIBLE AS SKIES BECOME CLEAR LATE THIS
AFTERNOON INTO THE EVENING HOURS. AS SKIES CLEAR...WINDS WILL
BECOME LIGHT OR GO ENTIRELY CALM. THIS WILL COMBINE WITH WET
GROUND CONDITIONS AND DENSE FOG WILL FORM. EXPECT LARGE AREAS
WITH VISIBILITIES 1/4 MILE OR LESS WITH THE FOG LASTING UNTIL MID
MORNING WEDNESDAY.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY...

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER CALL TO ACTION STATEMENT...
THE ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS...AND
EMERGENCY MANAGEMENT PERSONNEL IN SUPPORT OF SEVERE WEATHER
OPERATIONS...IS NOT ANTICIPATED THROUGH NEXT TUESDAY.

FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT
WWW.SRH.NOAA.GOV/JAN. THIS INCLUDES THE GRAPHICAL HAZARDOUS
WEATHER OUTLOOK.

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
1242 PM CST TUE DEC 12 2006

MSZ057-121920-
JASPER-
1242 PM CST TUE DEC 12 2006

...STRONG THUNDERSTORM MOVING THROUGH JASPER COUNTY...

NATIONAL WEATHER SERVICE DOPPLER RADAR AT 134 PM INDICATED A
STRONG THUNDERSTORM MOVING EAST NORTHEAST AT 30 TO 35 MPH ACROSS
SOUTHERN SECTIONS OF JASPER COUNTY. THIS STORM IS CAPABLE OF
PRODUCING GUSTY WINDS TO 45 OR 50 MPH...IN ADDITION TO HEAVY
DOWNPOURS AND OCCASIONAL CLOUD TO GROUND LIGHTNING STRIKES. THIS
STORM IS EXPECTED TO AFFECT HEIDELBERG BY 1 PM.

STAY TUNED TO THE NATIONAL WEATHER SERVICE IN JACKSON FOR FURTHER
UPDATES.

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