Alert archive / Alabama / Wind Advisories in 2018

Wind Advisory 9, NWS Birmingham, AL

April 22, 201825 counties in Alabama

NWS Birmingham, AL issued this wind advisory at Apr 22, 2018, 3:14 AM CDT for 25 counties in Alabama. It took effect at Apr 22, 2018, 1:00 PM CDT. It was in force for 15 hr.

The area

The counties it named.

The facts

Issued
Apr 22, 2018, 3:14 AM CDT (08:14 UTC)
In effect from
Apr 22, 2018, 1:00 PM CDT
Expired
Apr 23, 2018, 4:00 AM CDT
In force
15 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, Macon County, AL, Marion County, AL, Randolph County, AL, Russell County, AL, Shelby County, AL, St. Clair County, AL, Talladega County, AL, Tallapoosa County, AL, Walker County, AL, Winston County, AL

The radar

The Birmingham radar (KBMX), 44 km from the middle of the area, began a volume at 08:18 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, 8.2 hours before the alert went out and 44 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 2018-04-22Temperature 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 2018-04-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 65 square meters per square second.193958Sfc1 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
1396 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
65 m²/s²
0-3 km storm-relative helicity
146 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

724 
WWUS74 KBMX 220814
NPWBMX

URGENT - WEATHER MESSAGE
National Weather Service Birmingham AL
314 AM CDT Sun Apr 22 2018

...WINDY CONDITIONS ACROSS PARTS OF CENTRAL ALABAMA...

ALZ017>021-024>029-222200-
/O.NEW.KBMX.WI.Y.0009.180422T1800Z-180423T0900Z/
Blount-Etowah-Calhoun-Cherokee-Cleburne-Jefferson-Shelby-
St. Clair-Talladega-Clay-Randolph-
Including the cities of Oneonta, Gadsden, Anniston, Centre, 
Heflin, Birmingham, Hoover, Columbiana, Pelham, Alabaster, 
Pell City, Moody, Talladega, Sylacauga, Ashland, and Roanoke
314 AM CDT Sun Apr 22 2018

...WIND ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO 4 AM CDT
MONDAY...

The National Weather Service in Birmingham has issued a Wind
Advisory, which is in effect from 1 PM this afternoon to 4 AM CDT
Monday. 

* TIMING...The strongest winds will be between 1 PM this afternoon
  and 4 AM Monday morning.

* WINDS...Will be 15 to 25 mph with gusts of 35 mph. Wind gusts 
  above 40 mph will be possible at higher elevations.

* IMPACTS...Strong winds could cause large limbs and smaller trees
  to fall.

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
179 
WWUS74 KBMX 222115
NPWBMX

URGENT - WEATHER MESSAGE
National Weather Service Birmingham AL
415 PM CDT Sun Apr 22 2018

...WINDY CONDITIONS ACROSS PARTS OF CENTRAL ALABAMA...

ALZ017>021-024>029-230515-
/O.CON.KBMX.WI.Y.0009.000000T0000Z-180423T0900Z/
Blount-Etowah-Calhoun-Cherokee-Cleburne-Jefferson-Shelby-
St. Clair-Talladega-Clay-Randolph-
Including the cities of Oneonta, Gadsden, Anniston, Centre, 
Heflin, Birmingham, Hoover, Columbiana, Pelham, Alabaster, 
Pell City, Moody, Talladega, Sylacauga, Ashland, and Roanoke
415 PM CDT Sun Apr 22 2018

...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT MONDAY...

* TIMING...The strongest winds will be possible through 4 AM 
  Monday morning. 

* WINDS...Will be 15 to 25 mph with gusts of 35 mph. Wind gusts 
  above 40 mph will be possible at higher elevations. 

* IMPACTS...Strong winds could cause large limbs and smaller 
  trees to fall. 

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.

&&

$$
222 
WWUS74 KBMX 230015
NPWBMX

URGENT - WEATHER MESSAGE
National Weather Service Birmingham AL
715 PM CDT Sun Apr 22 2018

...WINDY CONDITIONS ACROSS PARTS OF CENTRAL ALABAMA...

ALZ011>015-034>038-043-045-047-048-230900-
/O.EXA.KBMX.WI.Y.0009.000000T0000Z-180423T0900Z/
Marion-Lamar-Fayette-Winston-Walker-Bibb-Chilton-Coosa-Tallapoosa-
Chambers-Elmore-Macon-Lee-Russell-
Including the cities of Hamilton, Sulligent, Vernon, Fayette, 
Double Springs, Jasper, Centreville, Clanton, Rockford, 
Alexander City, Dadeville, Valley, Lanett, Lafayette, Wetumpka, 
Tallassee, Tuskegee, Auburn, Opelika, and Phenix City
715 PM CDT Sun Apr 22 2018

...WIND ADVISORY IN EFFECT UNTIL 4 AM CDT MONDAY...

The National Weather Service in Birmingham has issued a Wind
Advisory, which is in effect until 4 AM CDT Monday. 

* TIMING...The strongest winds will be possible through 4 AM 
  Monday morning. 

* WINDS...Will be 15 to 25 mph with gusts of 35 mph. Wind gusts 
  above 40 mph will be possible at higher elevations. 

* IMPACTS...Strong winds could cause large limbs and smaller 
  trees to fall. 

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.

&&

$$

ALZ017>021-024>029-230900-
/O.CON.KBMX.WI.Y.0009.000000T0000Z-180423T0900Z/
Blount-Etowah-Calhoun-Cherokee-Cleburne-Jefferson-Shelby-
St. Clair-Talladega-Clay-Randolph-
Including the cities of Oneonta, Gadsden, Anniston, Centre, 
Heflin, Birmingham, Hoover, Columbiana, Pelham, Alabaster, 
Pell City, Moody, Talladega, Sylacauga, Ashland, and Roanoke
715 PM CDT Sun Apr 22 2018

...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT MONDAY...

* TIMING...The strongest winds will be possible through 4 AM 
  Monday morning. 

* WINDS...Will be 15 to 25 mph with gusts of 35 mph. Wind gusts 
  above 40 mph will be possible at higher elevations. 

* IMPACTS...Strong winds could cause large limbs and smaller 
  trees to fall. 

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.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 22, 2:15 PM CDTTornado WarningBMXMontgomery30 min
Apr 22, 3:03 PM CDTTornado WarningBMXBarbour27 min
Apr 22, 3:25 PM CDTTornado WarningBMXBarbour35 min
Apr 22, 4:37 PM CDTSpecial Weather StatementBMXPickens68 min
Apr 22, 5:49 PM CDTSpecial Weather StatementBMXTuscaloosa56 min
Apr 22, 6:38 PM CDTSevere Thunderstorm WarningBMXHale40 min
Apr 22, 6:55 PM CDTSevere Thunderstorm WarningBMXBibb, Perry65 min

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.