Severe Thunderstorm Warning 20, NWS Birmingham, AL

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BIRMINGHAM, AL
242 PM CST FRI FEB 09 2001

COLD FRONT LOCATED ACROSS PORTIONS OF WRN TN AND W/CNTRL MS WILL
MOVE RAPIDLY EWD.  THIS FRONT WILL ENTER WRN SECTIONS THIS EVE...
BE NEAR A HSV/BHM LINE BY MIDNIGHT...THEN BE ACROSS THE EXTREME SE
SECTIONS BY 6 AM SAT MORNING.  ALTHOUGH THE BEST UPPER SUPPORT IS
WELL NORTH OF THE AREA...MODELS FORECAST DECENT INSTABILITY AND
LIFT ACROSS THE NRN HALF OF THE AREA.  LATEST RADAR LOOPS SHOW
LINE OF SHWRS/TSTMS EXTENDING FROM NEAR JACKSON TN SWD TO NEAR
JACKSON MS.  WILL INCLUDE SLGT RISK WORDING FOR MUCH OF THE NORTH...
CENTRAL AND SW SECTIONS OF THE AREA PER THE LATEST OUTLOOK FROM
SPC.  WILL GO WITH HIGH POPS ACROSS THE ENTIRE AREA AS FRONT MOVES
TRHOUGH.

RAPID DRYING ON SAT AS WEAK HIGH PRESSURE BUILDS ACROSS THE AREA.
ONLY POPS WILL BE SLIGHT CHC ACROSS THE SE SECTIONS IN CASE FRONT
IS SLOW TO CLEAR.  MOIST SOUTHWEST FLOW ALOFT WILL PREVAIL SAT NIGHT
THROUGH SUN AS SEVERAL IMPULSES ARE FORECAST TO MOVE FROM SW TO NE
ACROSS THE AREA.  WILL GO WITH INCREASING CLOUDS SUN NIGHT AND
THEN SMALL POPS ON SUN.

EXTENDED FORECAST WILL CONTINUE WITH A MILD AND WET PATTERN AS THE
MOIST SOUTHWEST FLOW ALOFT MOVES SEVERAL IMPULSES INTO AND ACROSS THE
AREA.

HSV 40/46/35/50 +002
BHM 43/51/36/55 +002
MGM 50/58/40/57 8102

.BHM...NONE.

ALZ001>038-040>050-092230-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1225 PM CST FRI FEB 9 2001

HAZARDOUS WEATHER OUTLOOK FOR NORTH AND CENTRAL ALABAMA.

A STRONG COLD FRONT WILL APPROACH NORTH AND CENTRAL ALABAMA FROM THE
WEST THIS AFTERNOON AND EVENING...AND EXIT THE AREA BY SATURDAY
MORNING.

SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP ALONG AND AHEAD OF
THIS FRONTAL BOUNDARY.  SOME STORMS COULD BECOME SEVERE THIS
AFTERNOON AND EVENING NORTHWEST OF A LINE FROM SCOTTSBORO...TO
BIRMINGHAM...AND MARION...WITH THE MAIN THREAT BEING DAMAGING WINDS.
THE THREAT OF THUNDERSTORM ACTIVITY WILL MAINLY BE BETWEEN 2 PM AND
11 PM...WITH THE STRONGEST LINE OF STORMS EXPECTED TO ENTER EXTREME
NORTHWEST ALABAMA AROUND 3 PM.  THE UPPER LEVEL SUPPORT ASSOCIATED
WITH THIS STORM SYSTEM WILL MOVE NORTH OF THE AREA TONIGHT...REMOVING
THE THREAT OF SEVERE WEATHER THREAT TO EASTERN PORTIONS OF NORTH AND
CENTRAL ALABAMA.

WINDS AHEAD OF THE COLD FRONT CONTINUE TO BE STRONG AND GUSTY THIS
AFTERNOON...RANGING FROM 15 TO 30 MPH...WITH OCCASIONAL GUSTS AS HIGH
AS 40 MPH.  A WIND ADVISORY REMAINS IN EFFECT AT LEAST THROUGH 4
PM...NORTHWEST OF A LINE FROM MARION...TO CALERA...TO GADSDEN...TO
CENTRE.

EMERGENCY MANAGEMENT PERSONNEL AND STORM SPOTTER GROUPS SHOULD
MONITOR THE LATEST WEATHER CONDITIONS AND BE READY FOR POSSIBLE
ACTIVATION THIS AFTERNOON AND EVENING.