Severe Thunderstorm Warning 109, NWS Jackson, MS

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE JACKSON MS
945 AM CDT MON APR 8 2002

FIRST ROUND OF ACTIVE WEATHER DYING DOWN AND EXPECT MORE DEVELOPMENT
THIS AFTERNOON WITH POSSIBLE SEVERE WEATHER...FLOODING...AND
SUSTAINED WINDS OF 20 TO 25 MPH.

EARLY MORNING MCS HAS ABOUT ENDED WITH OUTFLOW BOUNDARY ALONG I-59.
MOST STORM TOTAL PRECIPITATION AMOUNTS IN THE ONE HALF TO ONE INCH
RANGE EXCEPT LOCALLY 2 INCHES IN NERN LA. HAVE UPDATED ZONES TO
PUSH ADDITIONAL HEAVY RAINS TO THIS AFTERNOON AS DIFFERENTIAL
DIVERGENCE COUPLET(300-850MB) MOVES UP THE MS RIVER FROM 18Z TO 03Z.
UNDER C-11 WILL SHORTEN WORDING SOME ALSO BY REMOVING ASSUMED
CATEGORICAL POPS AT LEAST IN FIRST PERIOD.

CONCERNING SEVERE POTENTIAL...EARLY ONSET OF RAIN HAS STABILIZED
AIRMASS TEMPORARILY HOWEVER 0-3KM STORM RELATIVE HELICITIES OF
400(META) TO 600(RUC) M2/S2 STILL IN TACT FOR THIS AFTERNOON. EXPECT
ELEVATED INSTABILITY WILL MEAN MOSTLY LARGE HAIL THREAT AS STORMS
MOVE NE ACROSS THE RAIN-COOLED DOME. WILL KEEP MENTION OF SEVERE FOR
NEARLY ALL LOCATIONS THIS AFTERNOON AND ADD HEAVY RAINS FOR SERN
PORTIONS TONIGHT AS MID LEVEL TROUGH MOVES EASTWARD TONIGHT. MAY
HAVE TO EXPAND FLOOD WATCH SEWD FOR TONIGHT.

PRELIM NUMBERS...
JAN 070/062 075/058 075 +86-0
MEI 071/061 073/056 075 88710

.JAN...
AR...FLOOD WATCH FOR TODAY AND WIND ADVISORY FOR TODAY...EXTREME
SOUTHEAST AR ZONES.
LA....FLOOD WATCH FOR TODAY AND WIND ADVISORY FOR TODAY IN NORTHEAST
LA ZONES
MS...WIND ADVISORY FOR TODAY FOR ALL THE KJAN MS ZONES. FLOOD WATCH
FOR TODAY FOR ALL KJAN ZONES ALONG AND WEST OF EUPORA TO KOSCIUSKO
TO BRANDON TO BROOKHAVEN LINE.

ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>066-072>074-
091200-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSON MS
636 AM CDT MON APR 08 2002

...THUNDERSTORMS...
PERIODS OF SHOWERS AND THUNDERSTORMS ARE EXPECTED TODAY ACROSS
EXTREME SOUTHEAST ARKANSAS...NORTHEAST LOUISIANA...AND MUCH OF
MISSISSIPPI. THE STRONGEST STORMS ARE MAINLY LIKELY TO OCCUR
THROUGH THE AFTERNOON HOURS...MAINLY ALONG AND WEST OF A COLUMBUS
TO KOSCIUSKO TO JACKSON TO BROOKHAVEN LINE.

A COLD FRONTAL SYSTEM WILL MOVE SLOWLY EASTWARD TOWARDS
MISSISSIPPI TODAY. BY THIS AFTERNOON...THE UPPER LEVEL WIND
PATTERN WILL BECOME FAVORABLE FOR THE DEVELOPMENT OF VERY STRONG
THUNDERSTORMS. THE MAIN CONCERN WITH THIS SYSTEM WILL BE FROM
THUNDERSTORMS PRODUCING STRONG WINDS...SMALL HAIL AND VERY HEAVY
RAIN. WIDESPREAD RAINFALL TOTALS FROM 2 TO 4 INCHES WITH ISOLATED
AMOUNTS NEAR 5 INCHES WILL ALSO BE POSSIBLE THROUGH TONIGHT.

THE ACTIVATION OF EMERGENCY MANAGEMENT PERSONNEL MAY BE NEEDED
THIS AFTERNOON AND EVENING WHEN THE STRONGEST THUNDERSTORMS ARE
EXPECTED TO OCCUR.

...FLOODING...
A FLOOD WATCH IS IN EFFECT FOR TODAY ALONG AND WEST OF A LINE
FROM EUPORA TO KOSCIUSKO TO BRANDON TO BROOKHAVEN. A SLOW MOVING
FRONTAL SYSTEM WILL APPROACH THE MISSISSIPPI RIVER BY THIS
EVENING. AHEAD OF THE FRONT...STRONG THUNDERSTORMS WITH PERIODS
OF VERY HEAVY RAINFALL ARE EXPECTED TO OCCUR. EAST OF THE FLOOD
WATCH AREA IN EASTERN PORTIONS OF MISSISSIPPI...A FEW STRONG
STORMS WITH LOCALLY HEAVY RAINFALL IS ALSO POSSIBLE. PEOPLE
LIVING IN LOW LYING AREAS OR NEAR RIVERS OR STREAMS SHOULD BE
PREPARED TO MOVE TO HIGHER GROUND.

...NON PRECIPITATION...
BREEZY SOUTHERLY WINDS WILL CONTINUE THROUGH TODAY CAUSING AREA
LAKES AND RIVERS TO REMAIN CHOPPY. WITH WINDS STEADY FROM 20 TO
25 MPH WITH GUSTS TO 40 MPH POSSIBLE...CAUTION IS ADVISED.
CAUTION IS ALSO ADVISED FOR THOSE DRIVING HIGH PROFILE
VEHICLES...ESPECIALLY ON EAST-WEST ROADWAYS.

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

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
545 AM CST MON APR 08 2002

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0435 AM    VICKSBURG                 MS   WIND DAMAGE
04/08/02   WARREN                         VICKSBURG 911 REPORTED
                                          ROOFS BLOWN OFF OF TWO
                                          BUILDINGS...AS WELL AS
                                          SEVERAL TREES DOWN.

0436 AM    3NW MADISON               MS   0.75 INCH HAIL
04/08/02   MADISON                        S.O. REPORTED DIME SIZE
                                          HAIL ON HIGHWAY 463 NEAR
                                          MADISON.

ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>066-072>074-
091200-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSON MS
645 AM CDT MON APR 08 2002

...THUNDERSTORMS...
PERIODS OF SHOWERS AND THUNDERSTORMS ARE EXPECTED TODAY ACROSS
EXTREME SOUTHEAST ARKANSAS...NORTHEAST LOUISIANA...AND MUCH OF
MISSISSIPPI. THE STRONGEST STORMS ARE LIKELY TO OCCUR THROUGH THE
AFTERNOON HOURS...MAINLY ALONG AND WEST OF A COLUMBUS TO
KOSCIUSKO TO JACKSON TO BROOKHAVEN LINE.

A COLD FRONTAL SYSTEM WILL MOVE SLOWLY EASTWARD TOWARDS
MISSISSIPPI TODAY. BY THIS AFTERNOON...THE UPPER LEVEL WIND
PATTERN WILL BECOME FAVORABLE FOR THE DEVELOPMENT OF VERY STRONG
THUNDERSTORMS. THE MAIN CONCERN WITH THIS SYSTEM WILL BE FROM
THUNDERSTORMS PRODUCING STRONG WINDS...SMALL HAIL AND VERY HEAVY
RAIN. WIDESPREAD RAINFALL TOTALS FROM 2 TO 4 INCHES WITH ISOLATED
AMOUNTS NEAR 5 INCHES WILL ALSO BE POSSIBLE THROUGH TONIGHT.

THE ACTIVATION OF EMERGENCY MANAGEMENT PERSONNEL MAY BE NEEDED
THIS AFTERNOON AND EVENING WHEN THE STRONGEST THUNDERSTORMS ARE
EXPECTED TO OCCUR.

...FLOODING...
A FLOOD WATCH IS IN EFFECT FOR TODAY ALONG AND WEST OF A LINE
FROM EUPORA TO KOSCIUSKO TO BRANDON TO BROOKHAVEN. A SLOW MOVING
FRONTAL SYSTEM WILL APPROACH THE MISSISSIPPI RIVER BY THIS
EVENING. AHEAD OF THE FRONT...STRONG THUNDERSTORMS WITH PERIODS
OF VERY HEAVY RAINFALL ARE EXPECTED TO OCCUR. EAST OF THE FLOOD
WATCH AREA IN EASTERN PORTIONS OF MISSISSIPPI...A FEW STRONG
STORMS WITH LOCALLY HEAVY RAINFALL ARE ALSO POSSIBLE. PEOPLE
LIVING IN LOW LYING AREAS OR NEAR RIVERS OR STREAMS SHOULD BE
PREPARED TO MOVE TO HIGHER GROUND.

...NON PRECIPITATION...
BREEZY SOUTHERLY WINDS WILL CONTINUE THROUGH TODAY CAUSING AREA
LAKES AND RIVERS TO REMAIN CHOPPY. WITH WINDS STEADY FROM 20 TO
25 MPH WITH GUSTS TO 40 MPH POSSIBLE...CAUTION IS ADVISED.
CAUTION IS ALSO ADVISED FOR THOSE DRIVING HIGH PROFILE
VEHICLES...ESPECIALLY ON EAST-WEST ROADWAYS.

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