Severe Thunderstorm Warning 697, NWS Jackson, MS

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE JACKSON MS
1050 AM CST SAT DEC 16 2000

AIRMASS IS QUITE UNSTABLE WITH DEWPOINTS IN THE 60S. STRONG COLD FRONT
IS ABOUT TO MOVE INTO THE COUNTY WARNING AREA. UPPER DYNAMICS IS
ABOUT TO AFFECT THE REGION FROM THE WEST. TORNADO WATCH HAS BEEN
ISSUED FOR THE EAST/SOUTHEAST PORTIONS OF COUNTY WARNING AREA. SO
HAVE UPDATED THE ZONES AND HAVE UPPED TEMPS ACCORDINGLY.

.JAN...
AR...HARD FREEZE WARNING/WIND CHILL ADVISORY TONIGHT ASHLEY/CHICOT.
LA...HARD FREEZE WARNING/WIND CHILL ADVISORY TONIGHT Z007-009.
MS...FARD FREEZE WARNING/WIND CHILL ADVISORY TONIGHT ALONG AND NORTH
OF VALLEY PARK TO LEXINGTON TO WALTHALL LINE.

17

ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>066-072>
074-171200-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSON MS
1110 AM CST SAT DEC 16 2000

...THUNDERSTORMS...
SCATTERED THUNDERSTORMS..SOME SEVERE..ARE LIKELY OVER MUCH OF THE
FORECAST REGION THIS AFTERNOON AS THE FRONT MOVES INTO THE AREA OF
DEEPEST MOISTURE. A FEW TORNADOS WILL BE POSSIBLE IN THE EASTERN
HALF OF MISSISSIPPI...MAINLY ALONG AND EAST OF A STARKVILLE TO
PHILADELPHIA TO COLUMBIA LINE DURING THE LATE MORNING AND EARLY
AFTERNOON HOURS. LARGE HAIL AND DAMAGING THUNDERSTORM WINDS WILL
ALSO BE POSSIBLE TODAY AS THE FRONT MOVES INTO NORTHEAST LOUISIANA
AND SOUTHEAST ARKANSAS DURING THE EARLY AFTERNOON HOURS AND INTO
EASTERN MISSISSIPPI BY LATE THIS AFTERNOON. THE THUNDERSTORM THREAT
WILL END BY SUNSET AFTER THE FRONT EXITS MISSISSIPPI.

...WINTER WEATHER...
THE STRONG COLD FRONT THAT TRACKS ACROSS THE REGION TODAY WILL SERVE
AS THE LEADING EDGE OF A VERY COLD ARCTIC AIR MASS. TEMPERATURES
WILL FALL RAPIDLY BEHIND THE FRONT WITH READINGS DROPPING INTO THE
40S AND 50S BY LATE AFTERNOON. TEMPERATURES WILL FALL INTO THE 20S
OVER MOST OF THE FORECAST AREA BY SUNRISE SUNDAY. OVERNIGHT LOWS
WILL DROP INTO THE TEENS OVER NORTHWEST MISSISSIPPI...SOUTHEAST
ARKANSAS AND EXTREME NORTHEAST LOUISIANA. GUSTY NORTHWEST WIND IN
THESE AREAS WILL CONTINUE MOST OF SATURDAY NIGHT...PRODUCING WIND
CHILLS FROM ZERO TO MINUS FIVE.

...WIND...
A VIGOROUS COLD FRONT WILL MOVE INTO THE AREA FROM THE WEST THIS
AFTERNOON. STRONG SOUTHWEST WINDS OF 15 TO 25 MPH WITH GUSTS AS HIGH
AS 40 MPH WILL OCCUR.  AS THE FRONT MOVES THROUGHT THE
REGION...WINDS WILL SWITCH TO THE NORTHWEST. WIND SPEEDS WILL
DECREASE SLIGHTLY DURING THE EVENING...DIMINISHING TO AROUND 10
MILES AN HOUR BY SUNRISE SUNDAY.

ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>066-072>
074-171200-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSON MS
200 PM CST SAT DEC 16 2000

...THUNDERSTORMS...
ISOLATED SEVERE THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON IN EXTREME
EASTERN MISSISSIPPI. THE MAIN THREAT WILL BE DAMAGING STRAIGHT-LINE
WINDS...BUT AN ISOLATED TORNADO IS ALSO POSSIBLE THROUGH 4 PM. THE
THREAT OF SEVERE WEATHER WILL RAPIDLY DIMINISH AS A STRONG COLD
FRONT MOVES ACROSS MISSISSIPPI DURING THE NEXT SEVERAL HOURS.

...WINTER WEATHER...
EXPECT A HARD FREEZE TONIGHT IN PORTIONS OF NORTHWEST
MISSISSIPPI...SOUTHEAST ARKANSAS...AND NORTHEAST LOUISIANA.
TEMPERATURES WILL DROP TO 15 TO 20 DEGREES WITH WIND CHILLS OF 0 TO
-10 DEGREES BY SUNRISE.

...NON PRECIPITATION...
AS A COLD FRONT PUSHES ACROSS THE FORECAST AREA...WINDS WILL GUST UP TO
40 MPH. THE WINDS WILL START OUT AS SOUTHWESTERLY IN EASTERN
MISSISSIPPI ANDM WILL BECOME NORTHWESTERLY ACROSS THE ENTIRE FORECAST
AREA BY LATE AFTERNOON AND WELL INTO THE EVENING HOURS.