Alert archive / Alabama / Wind Advisories in 2012

Wind Advisory 4, NWS Birmingham, AL

February 11, 201239 counties in Alabama

NWS Birmingham, AL issued this wind advisory at Feb 11, 2012, 4:39 AM CST for 39 counties in Alabama. It took effect at Feb 11, 2012, 9:00 AM CST. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued
Feb 11, 2012, 4:39 AM CST (10:39 UTC)
In effect from
Feb 11, 2012, 9:00 AM CST
Expired
Feb 11, 2012, 6:00 PM CST
In force
9 hr
Issued by
NWS Birmingham, AL
All 39 counties

Autauga County, AL, Barbour County, AL, Bibb County, AL, Blount County, AL, Bullock County, AL, Calhoun County, AL, Chambers County, AL, Cherokee County, AL, Chilton County, AL, Clay County, AL, Cleburne County, AL, Coosa County, AL, Dallas County, AL, Elmore County, AL, Etowah County, AL, Fayette County, AL, Greene County, AL, Hale County, AL, Jefferson County, AL, Lamar County, AL, Lee County, AL, Lowndes County, AL, Macon County, AL, Marengo County, AL, Marion County, AL, Montgomery County, AL, Perry County, AL, Pickens County, AL, Pike County, AL, Randolph County, AL, Russell County, AL, Shelby County, AL, St. Clair County, AL, Sumter County, AL, Talladega County, AL, Tallapoosa County, AL, Tuscaloosa County, AL, Walker County, AL, Winston County, AL

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 10.7 hours before the alert went out and 23 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.

Skew-T log-pSkew-T log-p diagram, Birmingham, AL at 00:00Z on 2012-02-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 00:00Z on 2012-02-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 83 square meters per square second.1939587897117136Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
952 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
83 m²/s²
0-3 km storm-relative helicity
170 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

374 
WWUS74 KBMX 111039
NPWBMX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BIRMINGHAM AL
439 AM CST SAT FEB 11 2012

...WINDY TODAY FOLLOWED BY EXTREMELY COLD TEMPERATURES TONIGHT...

.A COLD ARCTIC BLAST WILL CREATE WINDY CONDITIONS TODAY. 
ADDITIONALLY...THE COLD BLAST WILL PRODUCE THE COLDEST
TEMPERATURES THIS YEAR AND POSSIBLY FOR THE SEASON. TEMPERATURES
WILL BE IN THE MID TEENS TO LOWER 20S OVERNIGHT INTO EARLY SUNDAY.
TEMPERATURES THIS COLD FOR A PROLONGED PERIOD NEED TO BE MONITORED
FOR DETRIMENTAL EFFECTS.

ALZ011>015-017>050-120000-
/O.NEW.KBMX.WI.Y.0004.120211T1500Z-120212T0000Z/
/O.CON.KBMX.HZ.A.0001.120212T0600Z-120212T1500Z/
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-
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...
LIVINGSTON...EUTAW...GREENSBORO...MOUNDVILLE...MARION...
CENTREVILLE...CLANTON...ROCKFORD...ALEXANDER CITY...DADEVILLE...
VALLEY...LANETT...LAFAYETTE...DEMOPOLIS...LINDEN...SELMA...
PRATTVILLE...FORT DEPOSIT...HAYNEVILLE...WETUMPKA...TALLASSEE...
MONTGOMERY...TUSKEGEE...UNION SPRINGS...AUBURN...OPELIKA...
PHENIX CITY...TROY...EUFAULA
439 AM CST SAT FEB 11 2012

...WIND ADVISORY IN EFFECT FROM 9 AM THIS MORNING TO 6 PM CST
THIS EVENING...
...HARD FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
SUNDAY MORNING...

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 9 AM THIS MORNING TO 6 PM CST
THIS EVENING. 

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM CONTINUES A HARD
FREEZE WATCH...WHICH IS IN EFFECT FROM LATE TONIGHT
THROUGH SUNDAY MORNING. 

* TIMING...WINDY CONDITIONS WILL START BY THIS MORNING AND LAST
  UNTIL SUNSET. COLD TEMPERATURES ARE EXPECTED OVERNIGHT INTO SUNDAY.

* WINDS...SUSTAINED NORTHERLY WIND OF 15 TO 25 MPH WITH GUSTS
  AROUND 35 MPH POSSIBLE...ESPECIALLY ACROSS OPEN LAN AREAS...ON OPEN
  WATERWAYS AND IN THE HIGHER ELEVATIONS.

* TEMPERATURE...TONIGHT INTO SUNDAY MORNING LOWS WILL DROP 
  INTO THE MID TEENS AND LOWER 20S AREA WIDE. THE COLDEST 
  LOCATIONS WILL BE ACROSS THE NORTH. 

* IMPACTS...A FEW WEAKER TREE LIMBS MAY BREAK FALL BECAUSE OF THE
  WINDY CONDITIONS. HIGH PROFILE VEHICLES SHOULD EXERCISE EXTRA
  CAUTION TODAY. DUE TO THE WARMER TEMPERATURES  IN THE AREA OVER
  THE PAST FEW WEEKS...MANY PLANTS HAVE ALREADY STARTED BLOOMING
  AND THESE TEMPERATURES COULD HAVE DEVASTATING IMPACTS TO
  VEGETATION. BELOW FREEZING TEMPERATURES MAY LAST AS LONG AS 24
  HOURS NORTH AND 12 HOURS SOUTH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HARD FREEZE WATCH MEANS TEMPERATURES WILL BE COLD ENOUGH TO
CAUSE EXPOSED PIPES TO FREEZE AND POSSIBLY BURST. PLEASE TAKE THE
NECESSARY PRECAUTIONS TO PROTECT ANY SENSITIVE PLANTS AT YOUR
HOME OR BUSINESS. ALSO...TAKE THE TIME TO PROTECT EXPOSED PIPES
FROM THE COLD.

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 24 MPH AND HIGHER...
OR WIND GUSTS OF 36 MPH AND HIGHER...ARE EXPECTED. WINDS THIS
STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE
VEHICLES. USE EXTRA CAUTION.

&&

$$
2 follow-up statements
357 
WWUS74 KBMX 112135
NPWBMX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BIRMINGHAM AL
335 PM CST SAT FEB 11 2012

...WINDY THIS AFTERNOON FOLLOWED BY EXTREMELY COLD TEMPERATURES
TONIGHT...

.A COLD ARCTIC BLAST WILL CREATE WINDY CONDITIONS TODAY.
ADDITIONALLY...THE COLD BLAST WILL PRODUCE THE COLDEST
TEMPERATURES THIS YEAR AND POSSIBLY FOR THE SEASON. TEMPERATURES
WILL BE IN THE MID TEENS TO LOWER 20S OVERNIGHT INTO EARLY
SUNDAY. TEMPERATURES THIS COLD FOR A PROLONGED PERIOD NEED TO BE
MONITORED FOR DETRIMENTAL EFFECTS TO LIFE AND PROPERTY.

ALZ011>015-017>050-120545-
/O.UPG.KBMX.HZ.A.0001.120212T0600Z-120212T1500Z/
/O.NEW.KBMX.HZ.W.0001.120212T0600Z-120212T1500Z/
/O.CON.KBMX.WI.Y.0004.000000T0000Z-120212T0000Z/
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-
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...
LIVINGSTON...EUTAW...GREENSBORO...MOUNDVILLE...MARION...
CENTREVILLE...CLANTON...ROCKFORD...ALEXANDER CITY...DADEVILLE...
VALLEY...LANETT...LAFAYETTE...DEMOPOLIS...LINDEN...SELMA...
PRATTVILLE...FORT DEPOSIT...HAYNEVILLE...WETUMPKA...TALLASSEE...
MONTGOMERY...TUSKEGEE...UNION SPRINGS...AUBURN...OPELIKA...
PHENIX CITY...TROY...EUFAULA
335 PM CST SAT FEB 11 2012

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING...
...HARD FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM
CST SUNDAY...

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A HARD
FREEZE WARNING...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM
CST SUNDAY. THE HARD FREEZE WATCH IS NO LONGER IN EFFECT. 

* TIMING...WINDY CONDITIONS WILL START BY THIS MORNING AND LAST 
  UNTIL SUNSET. COLD TEMPERATURES ARE EXPECTED OVERNIGHT INTO 
  SUNDAY. 

* WINDS...SUSTAINED NORTHERLY WIND OF 15 TO 25 MPH WITH GUSTS 
  AROUND 35 MPH POSSIBLE...ESPECIALLY ACROSS OPEN LAND AREAS...ON 
  OPEN WATERWAYS AND IN THE HIGHER ELEVATIONS. 

* TEMPERATURE...TONIGHT INTO SUNDAY MORNING LOWS WILL DROP INTO 
  THE MID TEENS AND LOWER 20S AREA WIDE. THE COLDEST LOCATIONS 
  WILL BE ACROSS THE NORTH. 

* IMPACTS...A FEW WEAKER TREE LIMBS MAY BREAK AND FALL BECAUSE OF 
  THE WINDY CONDITIONS. HIGH PROFILE VEHICLES SHOULD EXERCISE 
  EXTRA CAUTION TODAY. DUE TO THE WARMER TEMPERATURES IN THE 
  AREA OVER THE PAST FEW WEEKS...MANY PLANTS HAVE ALREADY 
  STARTED BLOOMING AND THESE TEMPERATURES COULD HAVE DEVASTATING 
  IMPACTS TO VEGETATION. BELOW FREEZING TEMPERATURES MAY LAST AS 
  LONG AS 24 HOURS NORTH AND 12 HOURS SOUTH. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HARD FREEZE WARNING MEANS TEMPERATURES WILL BE COLD ENOUGH TO
CAUSE EXPOSED PIPES TO FREEZE AND POSSIBLY BURST. PLEASE TAKE THE
NECESSARY PRECAUTIONS TO PROTECT ANY SENSITIVE PLANTS AT YOUR
HOME OR BUSINESS. ALSO...TAKE THE TIME TO PROTECT EXPOSED PIPES
FROM THE COLD.

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 24 MPH AND HIGHER...
OR WIND GUSTS OF 36 MPH AND HIGHER...ARE EXPECTED. WINDS THIS
STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE
VEHICLES. USE EXTRA CAUTION.

&&

$$
732 
WWUS74 KBMX 120016
NPWBMX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BIRMINGHAM AL
616 PM CST SAT FEB 11 2012

...EXTREMELY COLD TEMPERATURES TONIGHT...

.A COLD ARCTIC BLAST WILL PRODUCE THE COLDEST TEMPERATURES THIS
YEAR AND POSSIBLY FOR THE SEASON. TEMPERATURES WILL BE IN THE MID
TEENS TO LOWER 20S OVERNIGHT INTO EARLY SUNDAY. TEMPERATURES THIS
COLD FOR A PROLONGED PERIOD NEED TO BE MONITORED FOR DETRIMENTAL
EFFECTS TO LIFE AND PROPERTY.

ALZ011>015-017>050-121200-
/O.EXP.KBMX.WI.Y.0004.000000T0000Z-120212T0000Z/
/O.CON.KBMX.HZ.W.0001.120212T0600Z-120212T1500Z/
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-
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...
LIVINGSTON...EUTAW...GREENSBORO...MOUNDVILLE...MARION...
CENTREVILLE...CLANTON...ROCKFORD...ALEXANDER CITY...DADEVILLE...
VALLEY...LANETT...LAFAYETTE...DEMOPOLIS...LINDEN...SELMA...
PRATTVILLE...FORT DEPOSIT...HAYNEVILLE...WETUMPKA...TALLASSEE...
MONTGOMERY...TUSKEGEE...UNION SPRINGS...AUBURN...OPELIKA...
PHENIX CITY...TROY...EUFAULA
616 PM CST SAT FEB 11 2012

...HARD FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
9 AM CST SUNDAY...
...WIND ADVISORY HAS EXPIRED...

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A HARD
FREEZE WARNING...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM
CST SUNDAY.

* TEMPERATURE...TONIGHT INTO SUNDAY MORNING LOWS WILL DROP INTO
  THE MID TEENS AND LOWER 20S AREA WIDE. THE COLDEST LOCATIONS
  WILL BE ACROSS THE NORTH.

* IMPACTS...DUE TO THE WARMER TEMPERATURES IN THE AREA OVER THE
  PAST FEW WEEKS...MANY PLANTS HAVE ALREADY STARTED BLOOMING AND
  THESE TEMPERATURES COULD HAVE DEVASTATING IMPACTS TO VEGETATION.
  BELOW FREEZING TEMPERATURES MAY LAST AS LONG AS 24 HOURS NORTH
  AND 12 HOURS SOUTH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HARD FREEZE WARNING MEANS TEMPERATURES WILL BE COLD ENOUGH TO
CAUSE EXPOSED PIPES TO FREEZE AND POSSIBLY BURST. PLEASE TAKE THE
NECESSARY PRECAUTIONS TO PROTECT ANY SENSITIVE PLANTS AT YOUR
HOME OR BUSINESS. ALSO...TAKE THE TIME TO PROTECT EXPOSED PIPES
FROM THE COLD.

&&

$$

The office that day

Everything else NWS Birmingham, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 11, 5:41 AM CSTRed Flag WarningBMXAutauga, Barbour, Bibb, Blount, Bullock, Calhoun and 33 more36 hr
Feb 11, 3:35 PM CSTHard Freeze WarningBMXAutauga, Barbour, Bibb, Blount, Bullock, Calhoun and 33 more17 hr

Nearby

Wind Advisories in Alabama, 2012Every wind 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.