Alert archive / Alabama / Wind Advisories in 2018

Wind Advisory 1, NWS Birmingham, AL

January 12, 201839 counties in Alabama

NWS Birmingham, AL issued this wind advisory at Jan 12, 2018, 2:57 AM CST for 39 counties in Alabama. It was in force for 11 hr.

The area

The counties it named.

The facts

Issued
Jan 12, 2018, 2:57 AM CST (08:57 UTC)
Expired
Jan 12, 2018, 1:29 PM CST
In force
11 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 radar

The Birmingham radar (KBMX), 22 km from the middle of the area, began a volume at 09:01 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, 9.0 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 2018-01-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 8 joules per kilogram.LCLLFCEL10008507005003002001001 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 2018-01-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 193 square meters per square second.1939587897Sfc1 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
8 J/kg
Mixed-layer CIN
-78 J/kg
Mixed-layer LCL
1050 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
193 m²/s²
0-3 km storm-relative helicity
291 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

081 
WWUS74 KBMX 120857
NPWBMX

URGENT - WEATHER MESSAGE
National Weather Service Birmingham AL
257 AM CST Fri Jan 12 2018

...STRONG WINDS AHEAD OF COLD FRONT WILL IMPACT CENTRAL ALABAMA...

.Strong winds along an outflow boundary will move through Central
Alabama. Winds of 20 to 30 mph with gusts up to 35 mp have been
observed in the past hour and will continue as the line moves
east. The areas of dense fog has exited the area. 

ALZ018>021-028-029-037-038-045>050-121500-
/O.CAN.KBMX.FG.Y.0002.000000T0000Z-180112T1000Z/
/O.NEW.KBMX.WI.Y.0001.180112T0857Z-180112T1500Z/
Etowah-Calhoun-Cherokee-Cleburne-Clay-Randolph-Tallapoosa-
Chambers-Macon-Bullock-Lee-Russell-Pike-Barbour-
Including the cities of Gadsden, Anniston, Centre, Heflin, 
Ashland, Roanoke, Alexander City, Dadeville, Valley, Lanett, 
Lafayette, Tuskegee, Union Springs, Auburn, Opelika, Phenix City,
Troy, and Eufaula
257 AM CST Fri Jan 12 2018

...WIND ADVISORY IN EFFECT UNTIL 9 AM CST THIS MORNING...
...DENSE FOG ADVISORY IS CANCELLED...

The National Weather Service in Birmingham has issued a Wind
Advisory, which is in effect until 9 AM CST this morning. The
Dense Fog Advisory has been cancelled. 

* TIMING...of the strongest winds will be through 9 am.

* WINDS...will be between 20 and 30 mph with the boundary with
  gusts up to 40 mph. 

* IMPACTS...Winds this strong can make driving difficult,
  especially for high profile vehicles. Also limbs and branches 
  may break and fall, as well as weakened trees. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that wind gusts of 35 mph are expected.
Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.

&&

$$

ALZ011>015-017-023>027-034>036-041>044-121500-
/O.NEW.KBMX.WI.Y.0001.180112T0857Z-180112T1500Z/
Marion-Lamar-Fayette-Winston-Walker-Blount-Tuscaloosa-Jefferson-
Shelby-St. Clair-Talladega-Bibb-Chilton-Coosa-Autauga-Lowndes-
Elmore-Montgomery-
Including the cities of Hamilton, Sulligent, Vernon, Fayette, 
Double Springs, Jasper, Oneonta, Tuscaloosa, Birmingham, Hoover, 
Columbiana, Pelham, Alabaster, Pell City, Moody, Talladega, 
Sylacauga, Centreville, Clanton, Rockford, Prattville, 
Fort Deposit, Hayneville, Wetumpka, Tallassee, and Montgomery
257 AM CST Fri Jan 12 2018

...WIND ADVISORY IN EFFECT UNTIL 9 AM CST THIS MORNING...

The National Weather Service in Birmingham has issued a Wind
Advisory, which is in effect until 9 AM CST this morning. 

* TIMING...of the strongest winds will be through 9 am.

* WINDS...will be between 20 and 30 mph with the boundary with
  gusts up to 40 mph. 

* IMPACTS...Winds this strong can make driving difficult,
  especially for high profile vehicles. Also limbs and branches 
  may break and fall, as well as weakened trees. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that wind gusts of 35 mph are expected.
Winds this strong can make driving difficult...especially for
high profile vehicles. Use extra caution.

&&

$$
2 follow-up statements
316 
WWUS74 KBMX 121146
NPWBMX

URGENT - WEATHER MESSAGE
National Weather Service Birmingham AL
546 AM CST Fri Jan 12 2018

...STRONG WINDS WILL IMPACT CENTRAL ALABAMA...

.Strong winds associated with several features will be continue to
provide strong winds to Central alabama. Winds of 20 to 30 mph 
with gusts up to 35 mph are possible ahead and behind the main
front. 

ALZ022-030>033-039-040-130015-
/O.EXB.KBMX.WI.Y.0001.000000T0000Z-180113T0600Z/
Pickens-Sumter-Greene-Hale-Perry-Marengo-Dallas-
Including the cities of Carrollton, Livingston, Eutaw, 
Greensboro, Moundville, Marion, Demopolis, Linden, and Selma
546 AM CST Fri Jan 12 2018

...WIND ADVISORY IN EFFECT UNTIL MIDNIGHT CST TONIGHT...

The National Weather Service in Birmingham has issued a Wind
Advisory, which is in effect until midnight CST tonight. 

* TIMING...of the strongest winds will be through Midnight.

* WINDS...will be between 20 and 30 mph with higher gusts. 

* IMPACTS...Winds this strong can make driving difficult, 
  especially for high profile vehicles. Also limbs and branches 
  may break and fall, as well as weakened trees. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that sustained winds of 25 mph or higher 
are expected. Winds this strong can make driving difficult, 
especially for high profile vehicles. Use extra caution.

&&

$$

ALZ011>015-017>021-023>029-034>038-041>050-130015-
/O.EXT.KBMX.WI.Y.0001.000000T0000Z-180113T0600Z/
Marion-Lamar-Fayette-Winston-Walker-Blount-Etowah-Calhoun-
Cherokee-Cleburne-Tuscaloosa-Jefferson-Shelby-St. Clair-Talladega-
Clay-Randolph-Bibb-Chilton-Coosa-Tallapoosa-Chambers-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, Tuscaloosa, Birmingham, Hoover, Columbiana, Pelham, 
Alabaster, Pell City, Moody, Talladega, Sylacauga, Ashland, 
Roanoke, Centreville, Clanton, Rockford, Alexander City, 
Dadeville, Valley, Lanett, Lafayette, Prattville, Fort Deposit, 
Hayneville, Wetumpka, Tallassee, Montgomery, Tuskegee, 
Union Springs, Auburn, Opelika, Phenix City, Troy, and Eufaula
546 AM CST Fri Jan 12 2018

...WIND ADVISORY NOW IN EFFECT UNTIL MIDNIGHT CST TONIGHT...

* TIMING...of the strongest winds will be through Midnight.

* WINDS...will be between 20 and 30 mph with higher gusts. 

* IMPACTS...Winds this strong can make driving difficult, 
  especially for high profile vehicles. Also limbs and branches 
  may break and fall, as well as weakened trees. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that sustained winds of 25 mph or higher 
are expected. Winds this strong can make driving difficult, 
especially for high profile vehicles. Use extra caution.

&&

$$
003 
WWUS74 KBMX 121929
NPWBMX

URGENT - WEATHER MESSAGE
National Weather Service Birmingham AL
129 PM CST Fri Jan 12 2018

ALZ011>015-017>050-122030-
/O.CAN.KBMX.WI.Y.0001.000000T0000Z-180113T0600Z/
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, and Eufaula
129 PM CST Fri Jan 12 2018

...WIND ADVISORY IS CANCELLED...

The National Weather Service in Birmingham has cancelled the Wind
Advisory. 

Winds are not expected to exceed wind advisory criteria for the
remainder of today and tonight.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 11, 10:04 PM CSTDense Fog AdvisoryBMXBarbour, Bullock, Calhoun, Chambers, Cherokee, Clay and 8 more5 hr

Nearby

Wind Advisories in Alabama, 2018Every wind advisory in 2018

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.