Severe Thunderstorm Warning 94, NWS Birmingham, AL

847 
WWUS54 KBMX 051501
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1001 AM CDT THU APR 5 2012

ALC063-107-119-051545-
/O.CON.KBMX.SV.W.0094.000000T0000Z-120405T1545Z/
GREENE AL-PICKENS AL-SUMTER AL-
1001 AM CDT THU APR 5 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
SUMTER...SOUTHERN PICKENS AND GREENE COUNTIES UNTIL 1045 AM CDT...

AT 1000 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM 10 MILES SOUTHWEST OF
PICKENSVILLE TO 6 MILES WEST OF GAINESVILLE TO BOYD...MOVING EAST AT
40 MPH.

LOCATIONS IMPACTED INCLUDE...
  LIVINGSTON...ALICEVILLE...EUTAW...PANOLA...BOYD...GAINESVILLE...NEW
  WEST GREENE...GARDEN...MCMULLEN AND THE UNIVERSITY OF WEST ALABAMA.

THIS INCLUDES...
INTERSTATE 20 EXIT NUMBERS 17 THROUGH 45...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS EXHIBITED SOME WEAK ROTATION. TORNADOES CAN DEVELOP
QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE... SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

&&

TO REPORT SEVERE WEATHER...CALL 1-800-856-0758.

LAT...LON 3316 8833 3317 8832 3323 8785 3292 8781
      3285 8783 3281 8781 3276 8787 3277 8783
      3275 8781 3271 8783 3271 8779 3265 8779
      3264 8775 3263 8781 3259 8774 3257 8776
      3259 8778 3254 8780 3258 8838
TIME...MOT...LOC 1501Z 272DEG 34KT 3310 8835 3280 8824
          3265 8836

$$

61

414 
WWUS54 KBMX 051516
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1016 AM CDT THU APR 5 2012

ALC063-107-119-051545-
/O.CON.KBMX.SV.W.0094.000000T0000Z-120405T1545Z/
GREENE AL-PICKENS AL-SUMTER AL-
1016 AM CDT THU APR 5 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
SUMTER...SOUTHERN PICKENS AND GREENE COUNTIES UNTIL 1045 AM CDT...

AT 1014 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING PING PONG BALL SIZE
HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM 6 MILES SOUTHWEST OF ALICEVILLE
TO NEW WEST GREENE TO LIVINGSTON...MOVING EAST AT 40 MPH.

LOCATIONS IMPACTED INCLUDE...
  ALICEVILLE...EUTAW...WEST GREENE...EPES...BLUFFPORT...BOLIGEE...
  ALLISON...TISHABEE...BENEVOLA AND THORNHILL.

THIS INCLUDES...
INTERSTATE 20 EXIT NUMBERS 17 THROUGH 45...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE
HAIL AND DEADLY CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE
TO A SHELTER...PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM
WINDOWS.

&&

TO REPORT SEVERE WEATHER...CALL 1-800-856-0758.

LAT...LON 3284 8832 3312 8833 3316 8784 3292 8781
      3284 8783 3281 8781 3276 8787 3277 8783
      3275 8781 3271 8783 3271 8779 3265 8779
      3264 8776 3263 8781 3259 8774 3257 8793
      3258 8838
TIME...MOT...LOC 1516Z 272DEG 34KT 3305 8819 3289 8809
          3263 8819

$$

61

292 
WWUS54 KBMX 051530
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1030 AM CDT THU APR 5 2012

ALC107-051540-
/O.CAN.KBMX.SV.W.0094.000000T0000Z-120405T1545Z/
PICKENS AL-
1030 AM CDT THU APR 5 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN PICKENS COUNTY IS
CANCELLED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE 
WARNED AREA.

TO REPORT SEVERE WEATHER...CALL 1-800-856-0758.

LAT...LON 3283 8814 3302 8815 3305 8806 3304 8805
      3306 8803 3314 8784 3292 8781 3284 8783
      3281 8781 3276 8787 3277 8783 3275 8781
      3271 8783 3271 8779 3265 8779 3264 8776
      3263 8781 3259 8774 3257 8793 3258 8825
TIME...MOT...LOC 1530Z 272DEG 34KT 3303 8803 3287 8793
          3261 8804

$$

ALC063-119-051545-
/O.CON.KBMX.SV.W.0094.000000T0000Z-120405T1545Z/
GREENE AL-SUMTER AL-
1030 AM CDT THU APR 5 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL SUMTER
AND GREENE COUNTIES UNTIL 1045 AM CDT...

AT 1027 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM 7 MILES NORTH OF WEST GREENE TO
EUTAW TO BLUFFPORT...MOVING EAST AT 40 MPH.

LOCATIONS IMPACTED INCLUDE...
  EUTAW...TISHABEE...THORNHILL...MANTUA...UNION...WALDEN QUARTERS...
  FORKLAND...JENA...LEWISTON AND EUTAW MUNICIPAL AIRPORT.

THIS INCLUDES...
INTERSTATE 20 EXIT NUMBERS 17 THROUGH 45...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

INTENSE SQUALL LINES CAN OCCASIONALLY PRODUCE BRIEF TORNADOES IN
ADDITION TO WIDESPREAD SIGNIFICANT WIND DAMAGE. ALTHOUGH NOT
IMMEDIATELY LIKELY...FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON
THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. THIS STORM HAS THE
POTENTIAL TO CAUSE SERIOUS INJURY AND SIGNIFICANT DAMAGE TO PROPERTY.

&&

TO REPORT SEVERE WEATHER...CALL 1-800-856-0758.

LAT...LON 3283 8814 3302 8815 3305 8806 3304 8805
      3306 8803 3314 8784 3292 8781 3284 8783
      3281 8781 3276 8787 3277 8783 3275 8781
      3271 8783 3271 8779 3265 8779 3264 8776
      3263 8781 3259 8774 3257 8793 3258 8825
TIME...MOT...LOC 1530Z 272DEG 34KT 3303 8803 3287 8793
          3261 8804

$$

61

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BIRMINGHAM AL
650 AM CDT THU APR 5 2012

.UPDATE...AVIATION DISCUSSION.

&&

.DISCUSSION...

CLOSED UPPER LEVEL LOW HAS PROGRESSED TOWARDS THE OKLAHOMA AND
ARKANSAS BORDER AS SEEN ON CURRENT WATER VAPOR IMAGERY. STORMS ARE
CURRENTLY FORMING NEAR THE MISSISSIPPI RIVER ALONG THE ARKANSAS AND
MISSISSIPPI BORDER. CURRENT OBS INDICATE SOME SURFACE CONVERGENCE
ALONG THIS BOUNDARY AIDING IN THE STORMS DEVELOPMENT COUPLED WITH A
60 KT MID LEVEL JET INDICATED BY PROFILERS IN THIS AREA.

EXPECT SHOWERS AND THUNDERSTORMS TO ENTER WESTERN ALABAMA EARLY THIS
MORNING SHORTLY AFTER SUNRISE. MODELS INDICATE THAT THE BEST LIFT
WILL BE OVER THE SOUTHERN HALF OF THE FORECAST AREA AS A SHORTWAVE
TROUGH ROTATES THROUGH THE UPPER LEVEL LOW. LARGE SCALE LIFT WILL BE
IN PLACE WITH DIVERGENT AND DIFFLUENT FLOW ALOFT AS A 50-60 KT MID
LEVEL JET AND 70-80 KT 300 MB JET NOSES INTO THE STATE DURING THE
EARLY MORNING HOURS. DEEP LAYER 0-6 KM BULK SHEAR VALUES WILL BE
NEAR 50 KTS WHICH WOULD SUPPORT ORGANIZED UPDRAFTS. THE WEAK SURFACE
BOUNDARY WILL ALSO HELP IN PROVIDING SOME SURFACE CONVERGENCE.
FORECAST MLCAPE VALUES OF 1000 TO 1500 J/KG SHOULD BE SUPPORTIVE FOR
STORMS TO INITIATE. MODELS SOUNDINGS INDICATE A UNIDIRECTIONAL SHEAR
PROFILE WITH WEAK BOUNDARY LAYER FLOW. THEREFORE...EXPECT THE
TORNADO THREAT TO REMAIN VERY LOW. THE MAIN THREATS WITH ANY STORMS
WILL BE LARGE HAIL AND DAMAGING WINDS.

AROUND 18Z THE UPPER LEVEL LOW WILL BE LOCATED NEAR MEMPHIS. THE LOW
WILL CONTINUE TO DIVE SOUTHEAST ACROSS THE FORECAST AREA DURING THE
AFTERNOON HOURS. LAPSE RATES WILL STEEPEN ALOFT THIS AFTERNOON AND
EVENING ACROSS THE FORECAST AREA WITH 500 MB TEMPERATURES OF -16 TO
-20 C AND MID LEVEL LAPSE RATES NEAR 7 C/KM. MODELS STILL VARY ON
THE AMOUNT OF MOISTURE AND INSTABILITY AVAILABLE AFTER THE MORNING
AND EARLY AFTERNOON CONVECTION. HOWEVER...CONTINUED CHANCES FOR
SHOWERS AND THUNDERSTORMS INTO THE EVENING WITH THE MAIN THREATS
BEING LARGE HAIL AND DAMAGING WINDS. SHOWERS AND THUNDERSTORMS
SHOULD COME TO AN END LATE THIS EVENING AS THE UPPER LEVEL LOW
CONTINUES TO PROGRESS TO THE SOUTH AND EAST.

NICE WEATHER WILL BE IN STORE FOR THE UPCOMING WEEKEND AS A RIDGE
BUILDS IN ACROSS THE SOUTHEAST. WITH NORTHWESTERLY FLOW ALOFT COOLER
AND DRY CONDITIONS WILL BE IN STORE WITH HIGHS IN THE 70S AND LOW IN
THE 40S AND 50S.

EARLY NEXT WEEK AN AMPLIFIED UPPER LEVEL TROUGH WILL DIVE OUT OF
SOUTHERN CANADA. AT THIS TIME EXPECT THE FRONT TO COME THROUGH
CENTRAL ALABAMA DRY. MUCH COLDER AIR WILL MOVE IN BEHIND THE FRONT
WITH FORECAST LOWS IN THE 40S AREA WIDE TUESDAY AND WEDNESDAY
MORNING. WILL HAVE TO CONTINUE TO MONITOR TEMPERATURES FOR THE
MIDDLE PART OF NEXT WEEK.

ANDERSON

&&

.AVIATION...
12Z TAF DISCUSSION.

LARGE UPPER LOW SPINNING OVER WESTERN ARKANSAS WILL TRIGGER NUMEROUS
SHOWERS AND TSTMS ACROSS CENTRAL ALABAMA AS IT TRACKS EASTWARD
TOWARDS ALABAMA.  THERE HAS BEEN SOME LCL IFR VSBYS DUE TO FOG...BUT
THIS SHOULD CLEAR BY 13Z.

FORECAST WILL BE DIFFICULT TODAY DUE TO THE TIMING OF THE CLUSTERS
OF CONVECTION DEVELOPING AHEAD OF UPPER LOW. THE MAJORITY OF THE
CONVECTION SHOULD BE AFFECT TAF SITES BETWEEN 15Z AND 21Z...AND
INCLUDED TEMPO TSRA DURING THIS TIME FRAME.  ANY OF THE STORMS THIS
AFTERNOON AND EVENING WILL HAVE THE CHANCE TO PRODUCE LARGE HAIL. AS
THE CENTER OF THE UPPER LOW PASSES ACROSS CENTRAL ALABAMA BETWEEN
00Z AND 06Z...THERE COULD BE ANOTHER ROUND OF STORMS PRODUCING LARGE
HAIL.  NORTHWEST WINDS OF 5-10 KNOTS AND DRIER AIR BEHIND EXITING
UPPER LOW SHOULD KEEP CIGS ABOVE 3000 FEET AGL AND VSBYS AOA 5 MILES
AFTER 06Z.

58/ROSE

&&

.PRELIMINARY POINT TEMPS/POPS...
GADSDEN     77  49  72  46  74 /  70  30  10   0   0
ANNISTON    78  52  72  47  74 /  70  40  10   0   0
BIRMINGHAM  78  51  73  50  74 /  70  30  10   0   0
TUSCALOOSA  80  52  75  49  76 /  70  20   0   0   0
CALERA      79  53  74  51  75 /  70  30  10   0   0
AUBURN      78  55  72  50  73 /  70  30  10   0   0
MONTGOMERY  80  55  76  52  76 /  70  30  10   0   0
TROY        78  54  76  49  74 /  80  30  10   0   0

&&

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

&&

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BIRMINGHAM AL
544 AM CDT THU APR 5 2012

ALZ011>015-017>050-061045-
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-
544 AM CDT THU APR 5 2012

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

.DAY ONE...TODAY AND TONIGHT.

SEVERE STORMS WILL BE POSSIBLE TODAY AND TONIGHT FOR ALL OF CENTRAL
ALABAMA. THE MAIN THREATS WILL BE LARGE HAIL...DAMAGING WINDS AND
LOCALLY HEAVY RAINFALL. THE THREAT OF TORNADOES IS VERY LOW AT
THIS TIME. THERE MAY BE MORE THAN ONE WAVE OF STORMS THAT MOVE
THROUGH CENTRAL ALABAMA THROUGHOUT THE DAY BETWEEN THE HOURS OF
10 AM AND 10 PM.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT MAY BE
NECESSARY THURSDAY.