Severe Thunderstorm Warning 212, NWS Birmingham, AL

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BIRMINGHAM, AL
830 AM CDT MON APR 3 2000

SENT OUT QUICK UPDATE TO REMOVE SEVERE TSTM WATCH WORDING ALTHOUGH A
NEW WATCH MAY BE NEEDED SOON. ALSO CLEANED UP THE FORECAST. NO
CONTENT CHANGE ATTM.  75

.BHM...FLASH FLOOD WATCH TODAY ALZ001>027-030>032-034.

ALZ001>038-040>050-031600-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BIRMINGHAM AL
632 AM CDT MON APR 03 2000

...MORE HEAVY RAINFALL LIKELY FOR NORTHERN AND CENTRAL ALABAMA
   TODAY...
...SEVERE WEATHER POSSIBLE FOR CENTRAL ALABAMA TODAY AND EARLY
   TONIGHT...

A COMPLEX...SLOW MOVING UPPER LEVEL STORM SYSTEM WILL APPROACH
ALABAMA FROM THE WEST TODAY...AND FINALLY MOVE EAST OF THE STATE BY
TUESDAY AFTERNOON.  AT THE SURFACE...A COLD FRONT OVER ARKANSAS EARLY
THIS MORNING WILL MOVE EASTWARD AND ENTER WESTERN ALABAMA THIS
EVENING.  AHEAD OF THIS BOUNDARY...MOIST...UNSTABLE AIR WILL CONTINUE
TO STREAM NORTHWARD OUT OF THE GULF TODAY...FEEDING INTO WIDESPREAD
SHOWERS AND THUNDERSTORMS OVER NORTHERN AND CENTRAL ALABAMA.  THE
THREAT OF HEAVY RAINFALL AND SEVERE WEATHER SHOULD START TO DIMINISH
LATER TONIGHT AS THE UPPER LEVEL STORM SYSTEM AND COLD FRONT MOVE
ACROSS THE STATE.

...FLASH FLOODING THREAT...

EARLY THIS MORNING...A WARM FRONT IS LOCATED OVER SOUTHERN ALABAMA...
EXTENDING FROM NEAR HATTIESBURG MISSISSIPPI TO NEAR COLUMBUS GEORGIA.
WARM...MOIST AIR WILL CONTINUE TO RIDE OVER THIS BOUNDARY THROUGH THE
EARLY AFTERNOON HOURS...TRIGGERING WIDESPREAD SHOWERS AND
THUNDERSTORMS OVER MUCH OF WEST AND NORTH CENTRAL ALABAMA.
ADDITIONAL RAINFALL AMOUNTS OF ONE TO THREE INCHES ARE POSSIBLE
THROUGH THE DAYTIME HOURS OVER NORTHERN ALABAMA...PRIMARILY ALONG AND
JUST NORTH OF INTERSTATE 20-59.

A FLASH FLOOD WATCH REMAINS IN EFFECT FOR ROUGHLY THE NORTHERN ONE
HALF OF ALABAMA THROUGH THIS AFTERNOON.  RAINFALL AMOUNTS OF TWO
TO FOUR INCHES HAVE ALREADY OCCURRED ACROSS NORTHERN ALABAMA...AND
THE GROUND ACROSS THE AREA IS THOROUGHLY SATURATED.  AREA STREAMS ARE
ALREADY RUNNING QUITE HIGH...AND IT WILL NOT TAKE THAT MUCH
ADDITIONAL RAINFALL TO PRODUCE DANGEROUS FLASH FLOODING TODAY.

...SEVERE THUNDERSTORM THREAT...

THE AIRMASS OVER CENTRAL ALABAMA SHOULD CONTINUE TO DESTABILIZE
THROUGH THE LATE MORNING AND AFTERNOON HOURS.  THE WARM FRONT IN
PLACE OVER SOUTH ALABAMA...COUPLED WITH OTHER BOUNDARIES LEFT OVER
FROM THE OVERNIGHT THUNDERSTORMS...WILL SERVE AS A FOCUS FOR
ADDITIONAL STRONG THUNDERSTORM DEVELOPMENT OVER CENTRAL ALABAMA
DURING THE AFTERNOON AND EARLY EVENING.  THE MAIN THREAT AREA FOR
STRONG STORMS WILL EXTEND FROM THE INTERSTATE 20 59 CORRIDOR BETWEEN
TUSCALOOSA AND ANNISTON...SOUTHWARD INTO THE SELMA...MONTGOMERY AND
AUBURN AREAS.

GIVEN THE UNSTABLE NATURE OF THE AIRMASS OVER CENTRAL ALABAMA...
COMBINED WITH FAVORABLE WINDS ALOFT...THERE IS A RISK OF SEVERE
THUNDERSTORMS OVER THE AREA TODAY.  LARGE HAIL AND DAMAGING
WINDS WILL BE THE PRIMARY THREAT...BUT ISOLATED TORNADOES
ASSOCIATED WITH SUPERCELL STORMS ARE ALSO POSSIBLE.  AT THE
MOMENT...THE STRONGEST STORMS APPEAR LIKELY TO DEVELOP ANYTIME
FROM THE LATE MORNING HOURS THROUGH MID EVENING TONIGHT.

THIS CONTINUES TO BE A POTENTIALLY DANGEROUS WEAT"HER EVENT.
EMERGENCY MANAGEMENT PERSONNEL...AND STORM SPOTTERS GROUPS SHOULD
MONITOR THE LATEST WEATHER CONDITIONS...AND BE READY FOR ACTIVATION
TODAY AND EARLY TONIGHT.

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ALZ013-015-022-023-030>034-040-031300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
647 AM CDT MON APR 3 2000

SEVERE THUNDERSTORM WATCH NUMBER 152 IS NO LONGER IN EFFECT FOR THE
FOLLOWING COUNTIES IN WESTERN ALABAMA...

FAYETTE...WALKER...PICKENS...TUSCALOOSA...SUMTER...GREENE...HALE...
BIBB...PERRY...AND DALLAS.

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ALZ001>038-040>050-032000-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BIRMINGHAM AL
909 AM CDT MON APR 3 2000

...FLASH FLOOD WATCH IN EFFECT FOR NORTH AND CENTRAL ALABAMA
THROUGH EARLY TONIGHT...
...SEVERE THUNDERSTORMS POSSIBLE ACROSS MUCH OF NORTH AND CENTRAL
ALABAMA TODAY AND EARLY TONIGHT...

THE THREAT OF LOCALLY HEAVY RAIN AND POSSIBLE SEVERE THUNDERSTORMS
WILL CONTINUE ACROSS THE NORTHERN HALF OF ALABAMA THROUGH EARLY
TONIGHT.  A SERIES OF UPPER LEVEL DISTURBANCES WILL MOVE ACROSS THE
AREA.  A SURFACE LOW WILL ALSO MOVE ACROSS THE AREA IN ADVANCE OF
A COLD FRONT WHICH WILL MOVE INTO THE AREA LATER TONIGHT.
NUMEROUS SHOWERS AND THUNDERSTORMS WILL MOVE INTO AND ACROSS THE
AREA.  WITH MOST AREAS SATURATED FROM RECENT RAINFALL...ANY
ADDITIONAL RAINFALL WILL CAUSE SOME FLASH FLOODING TO OCCUR.  IF
YOU LIVE IN AREAS THAT ARE EASILY PRONE TO FLOODING...HAVE AN
EMERGENCY PLAN READY SHOULD THE WATER RISE QUICKLY.

WITH NUMEROUS BOUNDARIES ACROSS THE STATE...SOME SEVERE
THUNDERSTORMS WILL ALSO BE POSSIBLE AS WE GO THROUGH THE PEAK
HEATING HOURS.

STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL SHOULD
REMAIN ALERT FOR CHANGING WEATHER CONDITIONS AND MONITOR NOAA
WEATHER RADIO OR...LOCAL TV AND RADIO...FOR POSSIBLE WARNINGS
LATER TODAY.

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