Alert archive / Alabama / Wind Advisories in 2012

Wind Advisory 13, NWS Mobile, AL

October 29, 2012Butler County, Covington County, Crenshaw County, Alabama

NWS Mobile, AL issued this wind advisory at Oct 29, 2012, 4:48 AM CDT for Butler County, Covington County, Crenshaw County, Alabama. It took effect at Oct 29, 2012, 10:00 AM CDT. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued
Oct 29, 2012, 4:48 AM CDT (09:48 UTC)
In effect from
Oct 29, 2012, 10:00 AM CDT
Expired
Oct 29, 2012, 7:00 PM CDT
In force
9 hr
Issued by
NWS Mobile, AL

Counties Butler County, AL, Covington County, AL, Crenshaw County, AL

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 9.8 hours before the alert went out and 180 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 2012-10-29Temperature 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 2012-10-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -58 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1808 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
-58 m²/s²
0-3 km storm-relative helicity
-69 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.

201 
WWUS74 KMOB 290948
NPWMOB

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOBILE AL
448 AM CDT MON OCT 29 2012

...GUSTY NORTHWEST WINDS WILL IMPACT PORTIONS OF SOUTH CENTRAL
ALABAMA TODAY...

.HIGH PRESSURE WILL BUILD ACROSS THE CENTRAL AND SOUTHERN PLAINS
TODAY...WHILE HURRICANE SANDY CONTINUES TO MOVE TOWARD THE MID
ATLANTIC COAST. A TIGHTENED PRESSURE GRADIENT BETWEEN THESE
FEATURES WILL RESULT IN NORTHWEST WINDS AROUND 20 MPH...WITH GUSTS OF
25 TO 30 MPH ACROSS INTERIOR PORTIONS OF SOUTH CENTRAL ALABAMA AROUND
THE COMMUNITIES OF GREENVILLE...LUVERNE...AND ANDALUSIA TODAY. 

ALZ057-058-060-291800-
/O.NEW.KMOB.WI.Y.0013.121029T1500Z-121030T0000Z/
BUTLER-CRENSHAW-COVINGTON-
INCLUDING THE CITIES OF...GREENVILLE...LUVERNE...BRANTLEY...
ANDALUSIA...OPP
448 AM CDT MON OCT 29 2012

...WIND ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 7 PM CDT
THIS EVENING...

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A WIND ADVISORY
FOR BUTLER...CRENSHAW AND COVINGTON COUNTIES IN SOUTH CENTRAL
ALABAMA...WHICH IS IN EFFECT FROM 10 AM THIS MORNING TO 7 PM CDT
THIS EVENING.

* TIMING...THE STRONGEST WINDS WILL MAINLY OCCUR DURING THE LATE
  MORNING THROUGH THE AFTERNOON HOURS.

* WINDS...NORTHWEST WINDS SUSTAINED AROUND 20 MPH...WITH FREQUENT
  GUSTS OF 25 TO 30 MPH. 

* IMPACTS...THE STRONG AND GUSTY NORTHWEST WINDS WILL MAKE DRIVING
  DIFFICULT FOR HIGH PROFILE VEHICLES. UNSECURED OBJECTS SUCH AS
  GARBAGE CANS AND LAWN FURNITURE COULD ALSO BE BLOWN OVER BY THE
  WIND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WINDS OR FREQUENT GUSTS OF 25 TO 39 MPH
ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...
ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION.

&&

$$
1 follow-up statement
733 
WWUS74 KMOB 291701
NPWMOB

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOBILE AL
1201 PM CDT MON OCT 29 2012

...GUSTY NORTHWEST WINDS WILL IMPACT PORTIONS OF SOUTH CENTRAL
ALABAMA TODAY...

.HIGH PRESSURE WILL BUILD ACROSS THE CENTRAL AND SOUTHERN PLAINS
TODAY...WHILE HURRICANE SANDY CONTINUES TO MOVE TOWARD THE MID
ATLANTIC COAST. A TIGHTENED PRESSURE GRADIENT BETWEEN THESE
FEATURES WILL RESULT IN NORTHWEST WINDS AROUND 20 MPH...WITH
GUSTS OF 25 TO 30 MPH ACROSS INTERIOR PORTIONS OF SOUTH CENTRAL
ALABAMA AROUND THE COMMUNITIES OF GREENVILLE...LUVERNE...AND
ANDALUSIA TODAY.

ALZ057-058-060-300000-
/O.CON.KMOB.WI.Y.0013.000000T0000Z-121030T0000Z/
BUTLER-CRENSHAW-COVINGTON-
INCLUDING THE CITIES OF...GREENVILLE...LUVERNE...BRANTLEY...
ANDALUSIA...OPP
1201 PM CDT MON OCT 29 2012

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING...

* TIMING...THE STRONGEST WINDS WILL MAINLY OCCUR DURING THE LATE 
  MORNING THROUGH THE AFTERNOON HOURS. 

* WINDS...NORTHWEST WINDS SUSTAINED AROUND 20 MPH...WITH 
  FREQUENT GUSTS OF 25 TO 30 MPH. 

* IMPACTS...THE STRONG AND GUSTY NORTHWEST WINDS WILL MAKE 
  DRIVING DIFFICULT FOR HIGH PROFILE VEHICLES. UNSECURED OBJECTS 
  SUCH AS GARBAGE CANS AND LAWN FURNITURE COULD ALSO BE BLOWN 
  OVER BY THE WIND. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WINDS OR FREQUENT GUSTS OF 25 TO
39 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 Mobile, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 29, 2:37 PM CDTRed Flag WarningMOBButler, Covington, Crenshaw28 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.