Special Weather Statement, NWS Birmingham, AL

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BIRMINGHAM AL
646 PM CDT SUN MAY 6 2012

.UPDATE...
FOR AVIATION.

&&

.DISCUSSION...
SHORT TERM...THIS AFTERNOON AND TONIGHT

MOST OF THE STORMS FROM EARLIER TODAY HAVE PUSHED SOUTH OF THE
FORECAST AREA ALONG AN OUTFLOW BOUNDARIES. A FEW BOUNDARIES STILL
EXIST FROM PREVIOUS CONVECTION AND HAVE INITIATED A COUPLE OF STORMS
ACROSS MONTGOMERY AND BULLOCK COUNTIES. CLEARING HAS OCCURRED BEHIND
THE CONVECTION MAINLY NORTH OF A LINE FROM LIVINGSTON TO CLANTON TO
ROANOKE. HOWEVER...WEAK CONVECTIVE INHIBITION IS IN PLACE ACROSS
AREAS CURRENTLY WITH SUN. QUESTIONS STILL REMAIN ABOUT REDEVELOPMENT
LATER THIS AFTERNOON. ANY REDEVELOPMENT SHOULD REMAIN SCATTERED WITH
PULSE SEVERE STORMS POSSIBLE WITH DAYTIME HEATING THIS AFTERNOON. A
FEW SHOWERS AND STORMS HAVE ALREADY BEGUN TO REDEVELOP ACROSS THE
TENNESSEE VALLEY. VISIBLE SATELLITE SHOWS A LIMITED AMOUNT OF CU
ACROSS CENTRAL ALABAMA. THEREFORE...ADDITIONAL CONVECTION MAY REMAIN
RATHER ISOLATED. THE MAIN THREATS FROM ANY STORMS THAT FORM WILL BE
LARGE HAIL AND DAMAGING WINDS. A FEW OF THESE SHOWERS AND
THUNDERSTORMS COULD PERSIST INTO THE OVERNIGHT HOURS BUT SHOULD
WEAKEN SHORTLY AFTER SUNSET DUE TO THE LOSS OF DAYTIME HEATING.

MA

&&

.AVIATION...
00Z TAF DISCUSSION.

ROUND TWO HAS BEGUN...ALTHOUGH MORE ISOLATED THAN EARLIER. MOST OF
THE ACTIVITY HAS DEVELOPED ALONG A BOUNDARY THAT HAS DEVELOPED NEAR
THE US 78 CORRIDOR IN NORTHWESTERN ALABAMA. STORMS HAVE GONE UP
QUITE HIGH AND QUICKLY. THE INTERESTING PART OF IT IS THAT IT
APPEARS THAT THE ACTIVITY MAY ACTUALLY SPLIT MOST OF THE TERMINALS.
WENT AHEAD AND INCLUDED VCTS FOR TCL...ANB...BHM..AND EET...WITH EET
GETTING A TEMPO FROM 00Z TO 02Z. WILL AMEND THE OTHER SITES IF
NEEDED. OTHERWISE...VFR CONDITIONS THROUGH 06Z OUTSIDE THE RAIN
AREAS. KEPT THE CEILINGS VFR OVERNIGHT WITH VIS DROPPING INTO MVFR
TOWARD 11Z. WILL TRY TO REEVALUATE THE POTENTIAL LOWER CLOUDS AND
FOG ON THE NEXT PACKAGE AS ONGOING WEATHER TOOK PRECEDENCE.

NOTE***THE NATIONAL WEATHER SERVICE IS ISSUING SEASONAL TERMINAL
FORECASTS FOR THE TALLADEGA MUNICIPAL AIRPORT (KASN) IN
TALLADEGA...ALABAMA. THE FORECASTS WILL LAST THROUGH AT LEAST THE
9TH OF MAY. DUE TO THE LIMITED AVAILABILITY OF OBSERVATIONS...KASN
TAF WILL HAVE AMD NOT SKED APPENDED TO THE END OF THE FORECAST.

&&

.BMX WATCHES/WARNINGS/ADVISORIES...
NONE.

&&

HAZARDOUS WEATHER OUTLOOK...CORRECTED
NATIONAL WEATHER SERVICE BIRMINGHAM AL
524 PM CDT SUN MAY 6 2012

ALZ011>015-017>050-071845-
AUTAUGA-BARBOUR-BIBB-BLOUNT-BULLOCK-CALHOUN-CHAMBERS-CHEROKEE-
CHILTON-CLAY-CLEBURNE-COOSA-DALLAS-ELMORE-ETOWAH-FAYETTE-GREENE-HALE-
JEFFERSON-LAMAR-LEE-LOWNDES-MACON-MARENGO-MARION-MONTGOMERY-PERRY-
PICKENS-PIKE-RANDOLPH-RUSSELL-SHELBY-ST CLAIR-SUMTER-TALLADEGA-
TALLAPOOSA-TUSCALOOSA-WALKER-WINSTON-
524 PM CDT SUN MAY 6 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE COUNTIES SERVED BY THE
NATIONAL WEATHER SERVICE OFFICE IN BIRMINGHAM.

.DAY ONE...TONIGHT.

THERE IS A THREAT OF ISOLATED SEVERE THUNDERSTORMS THIS
EVENING...WITH DAMAGING STRAIGHT LINE WINDS AND LARGE HAIL. THERE IS
NOT A THREAT FOR TORNADO ACTIVITY. THE INITIAL COMPLEX OF STORMS
HAVE MOVED SOUTH OF THE AREA...BUT WITH PEAK HEATING AND AN UNSTABLE
AIRMASS...ADDITIONAL STORMS HAVE BEGUN TO DEVELOP IN NORTHERN
ALABAMA. THESE STORMS WILL LIKELY IMPACT THE NORTHERN HALF OF
CENTRAL ALABAMA THROUGH AT LEAST 10 PM. THE MAIN AREA FOR POTENTIAL
SEVERE WEATHER WILL GENERALLY BE NORTH OF A VERNON...TO
CHELSEA...TO WEDOWEE LINE. WILL NEED TO KEEP AN EYE ON ANY
ADDITIONAL DEVELOPMENT TO OUR NORTH FOR ACTIVITY DURING THE
OVERNIGHT HOURS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

THERE IS A THREAT OF ADDITIONAL SEVERE THUNDERSTORMS...WITH DAMAGING
WINDS AND LARGE HAIL...FROM MONDAY AFTERNOON THROUGH TUESDAY...AS A
COLD FRONT APPROACHES AND SLOWLY MOVES THROUGH THE STATE.

.SPOTTER INFORMATION STATEMENT...

ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT MAY BE NEEDED
THIS EVENING...AND AGAIN MONDAY AFTERNOON THROUGH TUESDAY...DUE TO
THE SEVERE THUNDERSTORM THREAT.

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
629 PM CDT SUN MAY 6 2012

ALZ024-070015-
JEFFERSON AL-
629 PM CDT SUN MAY 6 2012

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL JEFFERSON COUNTY UNTIL
715 PM CDT...

AT 627 PM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING A STRONG
THUNDERSTORM NEAR SYLVAN SPRINGS...OR 7 MILES NORTHWEST OF
HUEYTOWN...MOVING SOUTHEAST AT 10 MPH.

PEA SIZE HAIL AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS
STORM.

LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
  FAIRFIELD...
  HUEYTOWN...
  BESSEMER...
  MULGA...
  SYLVAN SPRINGS...

&&

LAT...LON 3340 8682 3330 8707 3356 8718 3364 8702
TIME...MOT...LOC 2329Z 333DEG 9KT 3352 8707

GRANTHAM

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
635 PM CDT SUN MAY 6 2012

ALZ012-070015-
LAMAR AL-
635 PM CDT SUN MAY 6 2012

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN LAMAR COUNTY UNTIL 715
PM CDT...

AT 631 PM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING A STRONG
THUNDERSTORM 9 MILES SOUTHWEST OF DETROIT...OR 10 MILES WEST OF
SULLIGENT...MOVING EAST AT 20 MPH.

PEA SIZE HAIL AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS
STORM.

LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
  SULLIGENT...
  LAMAR COUNTY AIRPORT...
  CREWS...
  BEAVERTON...
  BLOOMING GROVE...

&&

LAT...LON 3384 8824 3403 8821 3399 8795 3375 8795
      3383 8825
TIME...MOT...LOC 2335Z 283DEG 17KT 3394 8827

GRANTHAM

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
645 PM CDT SUN MAY 6 2012

ALZ021-070030-
CLEBURNE AL-
645 PM CDT SUN MAY 6 2012

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL CLEBURNE COUNTY UNTIL 730
PM CDT...

AT 641 PM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING A STRONG
THUNDERSTORM NEAR MARS HILLS...OR 8 MILES NORTHWEST OF TALLAPOOSA...
MOVING SOUTHWEST AT 15 MPH.

PEA SIZE HAIL AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS
STORM.

LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
  MUSCADINE...
  FRUITHURST...
  EDWARDSVILLE...
  ABERNATHY...
  COLEMAN LAKE AND CAMPGROUND...

&&

LAT...LON 3364 8541 3370 8563 3391 8550 3388 8538
      3387 8537 3373 8535
TIME...MOT...LOC 2346Z 029DEG 14KT 3381 8542

GRANTHAM

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