Alert archive / Alabama / Frost Advisories in 2012
Frost Advisory 2, NWS Birmingham, AL
NWS Birmingham, AL issued this frost advisory at Nov 7, 2012, 7:51 PM CST for 25 counties in Alabama. It took effect at Nov 8, 2012, 2:00 AM CST. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- Nov 7, 2012, 7:51 PM CST (01:51 UTC)
- In effect from
- Nov 8, 2012, 2:00 AM CST
- Expired
- Nov 8, 2012, 8:00 AM CST
- In force
- 6 hr
- Issued by
- NWS Birmingham, AL
All 25 counties
Bibb County, AL, Blount County, AL, Calhoun County, AL, Chambers County, AL, Cherokee County, AL, Chilton County, AL, Clay County, AL, Cleburne County, AL, Coosa County, AL, Elmore County, AL, Etowah County, AL, Fayette County, AL, Jefferson County, AL, Lamar County, AL, Lee County, AL, Marion County, AL, Pickens County, AL, Randolph County, AL, Shelby County, AL, St. Clair County, AL, Talladega County, AL, Tallapoosa County, AL, Tuscaloosa County, AL, Walker County, AL, Winston County, AL
The radar
The Birmingham radar (KBMX), 36 km from the middle of the area, began a volume at 01:53 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Birmingham, AL (KBMX), launched 00:00Z, 1.9 hours before the alert went out and 36 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1247 m above ground
- 0-6 km bulk shear
- 71 kt
- 0-1 km storm-relative helicity
- 24 m²/s²
- 0-3 km storm-relative helicity
- -40 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
047 WWUS74 KBMX 080151 NPWBMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE BIRMINGHAM AL 751 PM CST WED NOV 7 2012 ...FROST POSSIBLE ACROSS NORTHERN PORTIONS OF CENTRAL ALABAMA... ALZ011>015-017>029-034>038-043-047-081400- /O.NEW.KBMX.FR.Y.0002.121108T0800Z-121108T1400Z/ MARION-LAMAR-FAYETTE-WINSTON-WALKER-BLOUNT-ETOWAH-CALHOUN- CHEROKEE-CLEBURNE-PICKENS-TUSCALOOSA-JEFFERSON-SHELBY-ST. CLAIR- TALLADEGA-CLAY-RANDOLPH-BIBB-CHILTON-COOSA-TALLAPOOSA-CHAMBERS- ELMORE-LEE- INCLUDING THE CITIES OF...HAMILTON...SULLIGENT...VERNON... FAYETTE...DOUBLE SPRINGS...JASPER...ONEONTA...GADSDEN... ANNISTON...CENTRE...HEFLIN...CARROLLTON...TUSCALOOSA... BIRMINGHAM...HOOVER...COLUMBIANA...PELHAM...ALABASTER... PELL CITY...MOODY...TALLADEGA...SYLACAUGA...ASHLAND...ROANOKE... CENTREVILLE...CLANTON...ROCKFORD...ALEXANDER CITY...DADEVILLE... VALLEY...LANETT...LAFAYETTE...WETUMPKA...TALLASSEE...AUBURN... OPELIKA 751 PM CST WED NOV 7 2012 ...FROST ADVISORY IN EFFECT FROM 2 AM TO 8 AM CST THURSDAY... THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A FROST ADVISORY...WHICH IS IN EFFECT FROM 2 AM TO 8 AM CST THURSDAY. * TEMPERATURES...WILL DROP INTO THE LOW TO MID 30S ACROSS A GOOD PORTION OF CENTRAL ALABAMA OVERNIGHT. PATCHY FROST MAY OCCUR IN WELL PROTECTED AREAS IN THE SOUTH...WHILE AREAS OF FROST WILL BE POSSIBLE ACROSS THE NORTH. * IMPACTS...PREMATURELY BUDDING PLANTS...SHRUBS...AND TREES MAY BE SUSCEPTIBLE TO THESE COLDER TEMPERATURES. TENDER PLANTS MAY SEE DAMAGE OR BE KILLED IF LEFT OUTSIDE OR PROTECTIVE MEASURES ARE NOT TAKEN. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. && $$
1 follow-up statement
705 WWUS74 KBMX 081006 NPWBMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE BIRMINGHAM AL 406 AM CST THU NOV 8 2012 ...AREAS OF FROST ARE POSSIBLE ACROSS NORTHERN PORTIONS OF CENTRAL ALABAMA WITH PATCHY FROST POSSIBLE ELSEWHERE... ...DENSE FOG IS POSSIBLE ACROSS COUNTIES IN THE NORTHEAST WHILE PATCHY FOG IS POSSIBLE AREA WIDE... ALZ017>021-024>029-036-037-081400- /O.NEW.KBMX.FG.Y.0019.121108T1006Z-121108T1400Z/ /O.CON.KBMX.FR.Y.0002.000000T0000Z-121108T1400Z/ BLOUNT-ETOWAH-CALHOUN-CHEROKEE-CLEBURNE-JEFFERSON-SHELBY- ST. CLAIR-TALLADEGA-CLAY-RANDOLPH-COOSA-TALLAPOOSA- INCLUDING THE CITIES OF...ONEONTA...GADSDEN...ANNISTON...CENTRE... HEFLIN...BIRMINGHAM...HOOVER...COLUMBIANA...PELHAM...ALABASTER... PELL CITY...MOODY...TALLADEGA...SYLACAUGA...ASHLAND...ROANOKE... ROCKFORD...ALEXANDER CITY...DADEVILLE 406 AM CST THU NOV 8 2012 ...DENSE FOG ADVISORY IN EFFECT UNTIL 8 AM CST THIS MORNING... ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CST THIS MORNING... THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A DENSE FOG ADVISORY...WHICH IS IN EFFECT UNTIL 8 AM CST THIS MORNING. * TIMING...OF THE DENSE FOG WILL BE POSSIBLE THROUGH 8 AM. * VISIBILITIES...WILL DROP TO OR BELOW ONE QUARTER MILE AT TIMES. * TEMPERATURES...WILL DROP INTO THE LOW TO MID 30S ACROSS A GOOD PORTION OF CENTRAL ALABAMA OVERNIGHT. PATCHY FROST MAY OCCUR IN WELL PROTECTED AREAS IN THE SOUTH...WHILE AREAS OF FROST WILL BE POSSIBLE ACROSS THE NORTH. * IMPACTS...OF FROST WILL BE TO PREMATURELY BUDDING PLANTS... SHRUBS...AND TREES. THEY MAY BE SUSCEPTIBLE TO THESE COLDER TEMPERATURES. TENDER PLANTS MAY SEE DAMAGE OR BE KILLED IF LEFT OUTSIDE OR PROTECTIVE MEASURES ARE NOT TAKEN. PRECAUTIONARY/PREPAREDNESS ACTIONS... A DENSE FOG ADVISORY MEANS VISIBILITIES WILL FREQUENTLY BE REDUCED TO ONE QUARTER MILE OR LESS. IF DRIVING...SLOW DOWN...USE YOUR HEADLIGHTS...AND LEAVE PLENTY OF DISTANCE AHEAD OF YOU. A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. && $$ ALZ011>015-022-023-034-035-038-043-047-081400- /O.CON.KBMX.FR.Y.0002.000000T0000Z-121108T1400Z/ MARION-LAMAR-FAYETTE-WINSTON-WALKER-PICKENS-TUSCALOOSA-BIBB- CHILTON-CHAMBERS-ELMORE-LEE- INCLUDING THE CITIES OF...HAMILTON...SULLIGENT...VERNON... FAYETTE...DOUBLE SPRINGS...JASPER...CARROLLTON...TUSCALOOSA... CENTREVILLE...CLANTON...VALLEY...LANETT...LAFAYETTE...WETUMPKA... TALLASSEE...AUBURN...OPELIKA 406 AM CST THU NOV 8 2012 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CST THIS MORNING... * TEMPERATURES...WILL DROP INTO THE LOW TO MID 30S ACROSS A GOOD PORTION OF CENTRAL ALABAMA OVERNIGHT. PATCHY FROST MAY OCCUR IN WELL PROTECTED AREAS IN THE SOUTH...WHILE AREAS OF FROST WILL BE POSSIBLE ACROSS THE NORTH. * IMPACTS...PREMATURELY BUDDING PLANTS...SHRUBS...AND TREES MAY BE SUSCEPTIBLE TO THESE COLDER TEMPERATURES. TENDER PLANTS MAY SEE DAMAGE OR BE KILLED IF LEFT OUTSIDE OR PROTECTIVE MEASURES ARE NOT TAKEN. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. && $$ 08/MK
The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 8, 4:06 AM CST | Dense Fog Advisory | BMX | Blount, Calhoun, Cherokee, Clay, Cleburne, Coosa and 7 more | 4 hr |
| Nov 8, 3:46 PM CST | Frost Advisory | BMX | Autauga, Barbour, Bibb, Blount, Bullock, Calhoun and 33 more | 15 hr |
Nearby
Frost Advisories in Alabama, 2012Every frost advisory in 2012
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.