Special Weather Statement, NWS Birmingham, AL

Area Forecast Discussion
National Weather Service Birmingham AL
1251 PM CDT TUE AUG 2 2016

.UPDATE...
For 18Z Aviation.

&&

.DISCUSSION...

An MCS has developed to our north and is moving through North
Alabama at this time. Latest HRRR indicates that this will
continue to trek south-southeastward with time given the northwest
to northerly flow aloft. Have already increased rain chances
across the northern and eastern counties and will probably have to
increase them further. Additional development will also likely
occur out ahead of this in the southeast counties where a cumulus field
is developing. The morning sounding continues to indicate weak
mid-level lapse rates but a bit more dry air aloft and downdraft
CAPE than previous days. Microburst parameters still remain low,
but with 15-20 kts of mid-level flow gusty winds of around 40 mph
will be possible due to cold pool processes. Frequent lightning
and locally heavy rainfall is also expected.

32/Davis

&&

.AVIATION...
18Z TAF Discussion.

Satellite and radar shows a line of storms and showers quickly
approaching from the north. Time of arrival for KBHM, KEET, KASN,
and KANB is within the next hour. Cigs and visby's with this line
of storms will temporarily drop down to IFR conditions. KMGM and
KTOI will be impacted by this same system, but with a time of
arrival of 21z. KTCL is expected to only see scattered showers
with an isolated storm, but remain in VFR conditions. As this line
of storms pushes further south and begins to breakdown VFR
conditions are expected to return at 01z tonight. Due to the rain,
there is a chance of fog light tomorrow morning for all sites.

92

&&

.FIRE WEATHER...

Generally scattered showers and thunderstorms are expected through
the week with highs in the lower to middle 90s. Surface winds
will be less than 10 mph through the week with some directional
variations, but a northerly or westerly component will be
predominant. Since surface dew points are so high, there are no
fire weather concerns at this time.

&&

.PRELIMINARY POINT TEMPS/POPS...
Gadsden     72  93  72  93  72 /  30  30  20  40  30
Anniston    72  92  73  92  73 /  30  30  20  40  30
Birmingham  76  95  76  95  75 /  30  30  20  40  30
Tuscaloosa  75  97  75  96  74 /  30  30  20  40  30
Calera      75  95  75  94  74 /  40  30  20  40  30
Auburn      74  93  74  91  74 /  50  40  20  50  30
Montgomery  75  97  75  95  75 /  50  40  20  50  30
Troy        72  95  73  92  73 /  40  40  20  50  30

&&

.BMX WATCHES/WARNINGS/ADVISORIES...
None.

&&

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BIRMINGHAM AL
412 AM CDT TUE AUG 2 2016

ALZ011>015-017>050-031215-
MARION-LAMAR-FAYETTE-WINSTON-WALKER-BLOUNT-ETOWAH-CALHOUN-CHEROKEE-
CLEBURNE-PICKENS-TUSCALOOSA-JEFFERSON-SHELBY-ST. CLAIR-TALLADEGA-
CLAY-RANDOLPH-SUMTER-GREENE-HALE-PERRY-BIBB-CHILTON-COOSA-TALLAPOOSA-
CHAMBERS-MARENGO-DALLAS-AUTAUGA-LOWNDES-ELMORE-MONTGOMERY-MACON-
BULLOCK-LEE-RUSSELL-PIKE-BARBOUR-
412 AM CDT TUE AUG 2 2016

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

.DAY ONE...OUTLOOK THROUGH TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

THERE IS A SMALL CHANCE THAT HEAT INDICES REACH 105 DEGREES OR
HIGHER ON WEDNESDAY AFTERNOON. THE AREA OF CONCERN IS ROUGHLY
ALONG AND SOUTH OF A LINE FROM VERNON TO TUSCALOOSA TO CLANTON TO
PHENIX CITY.

.SPOTTER INFORMATION STATEMENT...

ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT IS NOT
EXPECTED.

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1231 PM CDT TUE AUG 2 2016

ALZ011-012-021815-
MARION AL-LAMAR AL-
1231 PM CDT TUE AUG 2 2016

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN LAMAR AND MARION
COUNTIES UNTIL 115 PM CDT...

AT 1231 PM CDT...DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS
ALONG A LINE EXTENDING FROM NEAR WESTON TO NEAR BRINN. MOVEMENT WAS
SOUTH AT 20 MPH.

WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
HAMILTON...WINFIELD...GUIN...BRILLIANT...GLEN ALLEN...DETROIT...
BEAVERTON...GU-WIN...BRINN...LAKE BUTTAHATCHEE...WESTON...
BEAR CREEK...TWIN...PINEY GROVE...TESSNER...BEXAR...PIKEVILLE...
PEARCES MILL...UPPER BEAR CREEK RESERVOIR AND TEXAS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
LEAD TO LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH
FLOODED ROADWAYS.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS.
LIGHTNING CAN STRIKE 10 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

&&

LAT...LON 3424 8818 3428 8764 3391 8764 3393 8822
TIME...MOT...LOC 1731Z 348DEG 19KT 3419 8808 3420 8786

32/DAVIS

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
103 PM CDT TUE AUG 2 2016

ALZ024-021845-
JEFFERSON AL-
103 PM CDT TUE AUG 2 2016

...SIGNIFICANT WEATHER ADVISORY FOR JEFFERSON COUNTY UNTIL 145 PM
CDT...

AT 103 PM CDT...DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG
A LINE EXTENDING FROM NEAR GORGAS STEAM PLANT TO CLAY. MOVEMENT WAS
SOUTHEAST AT 20 MPH.

WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
BIRMINGHAM...HOOVER...VESTAVIA HILLS...BESSEMER...HOMEWOOD...
MOUNTAIN BROOK...TRUSSVILLE...HUEYTOWN...GARDENDALE...IRONDALE...
LEEDS...MOODY...FAIRFIELD...FULTONDALE...CENTER POINT...
PLEASANT GROVE...CLAY...PINSON...TARRANT AND MIDFIELD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
LEAD TO LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH
FLOODED ROADWAYS.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS.
LIGHTNING CAN STRIKE 10 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

&&

LAT...LON 3377 8665 3376 8654 3366 8653 3356 8655
      3352 8652 3347 8661 3347 8667 3337 8678
      3333 8689 3327 8695 3325 8706 3328 8707
      3332 8717 3353 8727 3352 8726 3355 8719
      3360 8719 3366 8706 3373 8704 3379 8667
TIME...MOT...LOC 1803Z 328DEG 19KT 3360 8718 3370 8658

32/DAVIS