Alert archive / Alabama / Wind Advisories in 2018

Wind Advisory 9, NWS Mobile, AL

December 27, 201812 counties in Alabama; 5 counties in Mississippi; Escambia County, Okaloosa County, Santa Rosa County, Florida

NWS Mobile, AL issued this wind advisory at Dec 27, 2018, 8:29 AM CST for 12 counties in Alabama; 5 counties in Mississippi; Escambia County, Okaloosa County, Santa Rosa County, Florida. It took effect at Dec 27, 2018, 9:40 AM CST. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued
Dec 27, 2018, 8:29 AM CST (14:29 UTC)
In effect from
Dec 27, 2018, 9:40 AM CST
Expired
Dec 27, 2018, 6:00 PM CST
In force
8 hr
Issued by
NWS Mobile, AL

Counties Baldwin County, AL, Butler County, AL, Choctaw County, AL, Clarke County, AL, Conecuh County, AL, Covington County, AL, Crenshaw County, AL, Escambia County, AL, Mobile County, AL, Monroe County, AL, Washington County, AL, Wilcox County, AL, Escambia County, FL, Okaloosa County, FL, Santa Rosa County, FL, George County, MS, Greene County, MS, Perry County, MS, Stone County, MS, Wayne County, MS

The radar

The Mobile radar (KMOB), 83 km from the middle of the area, began a volume at 14:32 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

Slidell Radar S, LA (KSIL), launched 12:00Z, 2.5 hours before the alert went out and 223 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, Slidell Radar S, LA at 12:00Z on 2018-12-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 53 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, Slidell Radar S, LA at 12:00Z on 2018-12-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 651 square meters per square second.19395878Sfc1 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
53 J/kg
Mixed-layer CIN
-292 J/kg
Mixed-layer LCL
564 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
651 m²/s²
0-3 km storm-relative helicity
836 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

806 
WWUS74 KMOB 271429
NPWMOB

URGENT - WEATHER MESSAGE
National Weather Service Mobile AL
829 AM CST Thu Dec 27 2018

ALZ051>060-261>266-FLZ201>206-MSZ067-075-076-078-079-280000-
/O.NEW.KMOB.WI.Y.0009.181227T1429Z-181228T0000Z/
Choctaw-Washington-Clarke-Wilcox-Monroe-Conecuh-Butler-Crenshaw-
Escambia-Covington-Mobile Inland-Baldwin Inland-Mobile Central-
Baldwin Central-Mobile Coastal-Baldwin Coastal-Escambia Inland-
Escambia Coastal-Santa Rosa Inland-Santa Rosa Coastal-
Okaloosa Inland-Okaloosa Coastal-Wayne-Perry-Greene-Stone-George-
Including the cities of Butler, Lisman, Silas, Chatom, Millry, 
Grove Hill, Jackson, Thomasville, Camden, Pine Hill, Homewood, 
Monroeville, Evergreen, Greenville, Brantley, Luverne, Atmore, 
Brewton, Flomaton, Andalusia, Opp, Citronelle, Saraland, 
Stockton, Mobile, Prichard, Theodore, Bay Minette, Daphne, 
Fairhope, Foley, Spanish Fort, Bayou La Batre, Dauphin Island, 
Grand Bay, Fort Morgan, Gulf Shores, Orange Beach, Century, 
Molino, Walnut Hill, Beulah, Ensley, Fort Pickens, Pensacola, 
Pensacola Beach, Perdido Bay, Jay, Milton, Bagdad, Gulf Breeze, 
Navarre, Crestview, Destin, Eglin AFB, Fort Walton Beach, 
Niceville, Seminole, Valparaiso, Wright, Waynesboro, Beaumont, 
New Augusta, Richton, Leakesville, McLain, Wiggins, and Lucedale
829 AM CST Thu Dec 27 2018

...WIND ADVISORY IN EFFECT UNTIL 6 PM CST THIS EVENING...

The National Weather Service in Mobile has issued a Wind
Advisory, which is in effect until 6 PM CST this evening. 

* TIMING...Through 6 pm this evening. 

* WINDS...20 to 30 knots with frequent gusts to 35 knots. |

* IMPACTS...Hazardous driving conditions especially for high 
  profile vehicles. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that winds of 25 to 39 mph or frequent
gusts of 30 to 39 mph are expected. Winds this strong can make
driving difficult, especially for high profile vehicles. Use
extra caution. The strong winds can also blow around loose light-
weight outdoor objects. Ensure these items are secured.

&&

$$
2 follow-up statements
235 
WWUS74 KMOB 271540 CCA
NPWMOB

URGENT - WEATHER MESSAGE...CORRECTED
National Weather Service Mobile AL
940 AM CST Thu Dec 27 2018

ALZ051>060-261>266-FLZ201>206-MSZ067-075-076-078-079-280000-
/O.COR.KMOB.WI.Y.0009.181227T1540Z-181228T0000Z/
Choctaw-Washington-Clarke-Wilcox-Monroe-Conecuh-Butler-Crenshaw-
Escambia-Covington-Mobile Inland-Baldwin Inland-Mobile Central-
Baldwin Central-Mobile Coastal-Baldwin Coastal-Escambia Inland-
Escambia Coastal-Santa Rosa Inland-Santa Rosa Coastal-
Okaloosa Inland-Okaloosa Coastal-Wayne-Perry-Greene-Stone-George-
Including the cities of Butler, Lisman, Silas, Chatom, Millry, 
Grove Hill, Jackson, Thomasville, Camden, Pine Hill, Homewood, 
Monroeville, Evergreen, Greenville, Brantley, Luverne, Atmore, 
Brewton, Flomaton, Andalusia, Opp, Citronelle, Saraland, 
Stockton, Mobile, Prichard, Theodore, Bay Minette, Daphne, 
Fairhope, Foley, Spanish Fort, Bayou La Batre, Dauphin Island, 
Grand Bay, Fort Morgan, Gulf Shores, Orange Beach, Century, 
Molino, Walnut Hill, Beulah, Ensley, Fort Pickens, Pensacola, 
Pensacola Beach, Perdido Bay, Jay, Milton, Bagdad, Gulf Breeze, 
Navarre, Crestview, Destin, Eglin AFB, Fort Walton Beach, 
Niceville, Seminole, Valparaiso, Wright, Waynesboro, Beaumont, 
New Augusta, Richton, Leakesville, McLain, Wiggins, and Lucedale
940 AM CST Thu Dec 27 2018

...WIND ADVISORY IN EFFECT UNTIL 6 PM CST THIS EVENING...

The National Weather Service in Mobile has issued a Wind
Advisory, which is in effect until 6 PM CST this evening. 

* TIMING...Through 6 pm this evening. 

* WINDS...20 to 30 mph with frequent gusts to 35 mph. |

* IMPACTS...Hazardous driving conditions especially for high 
  profile vehicles. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that winds of 25 to 39 mph or frequent
gusts of 30 to 39 mph are expected. Winds this strong can make
driving difficult, especially for high profile vehicles. Use
extra caution. The strong winds can also blow around loose light-
weight outdoor objects. Ensure these items are secured.

&&

$$
611 
WWUS74 KMOB 280020
NPWMOB

URGENT - WEATHER MESSAGE
National Weather Service Mobile AL
620 PM CST Thu Dec 27 2018

ALZ051>060-261>266-FLZ201>206-MSZ067-075-076-078-079-280130-
/O.EXP.KMOB.WI.Y.0009.000000T0000Z-181228T0000Z/
Choctaw-Washington-Clarke-Wilcox-Monroe-Conecuh-Butler-Crenshaw-
Escambia-Covington-Mobile Inland-Baldwin Inland-Mobile Central-
Baldwin Central-Mobile Coastal-Baldwin Coastal-Escambia Inland-
Escambia Coastal-Santa Rosa Inland-Santa Rosa Coastal-
Okaloosa Inland-Okaloosa Coastal-Wayne-Perry-Greene-Stone-George-
Including the cities of Butler, Lisman, Silas, Chatom, Millry, 
Grove Hill, Jackson, Thomasville, Camden, Pine Hill, Homewood, 
Monroeville, Evergreen, Greenville, Brantley, Luverne, Atmore, 
Brewton, Flomaton, Andalusia, Opp, Citronelle, Saraland, 
Stockton, Mobile, Prichard, Theodore, Bay Minette, Daphne, 
Fairhope, Foley, Spanish Fort, Bayou La Batre, Dauphin Island, 
Grand Bay, Fort Morgan, Gulf Shores, Orange Beach, Century, 
Molino, Walnut Hill, Beulah, Ensley, Fort Pickens, Pensacola, 
Pensacola Beach, Perdido Bay, Jay, Milton, Bagdad, Gulf Breeze, 
Navarre, Crestview, Destin, Eglin AFB, Fort Walton Beach, 
Niceville, Seminole, Valparaiso, Wright, Waynesboro, Beaumont, 
New Augusta, Richton, Leakesville, McLain, Wiggins, and Lucedale
620 PM CST Thu Dec 27 2018

...WIND ADVISORY HAS EXPIRED...

Winds have diminished below advisory criteria, therefore the wind
advisory has been allowed to expire.

$$

JLH

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 26, 9:44 PM CSTRiver Flood WarningMOBEscambia15 days
Dec 27, 10:28 AM CSTGale WarningMOB4 hr
Dec 27, 10:28 AM CSTSmall Craft AdvisoryMOB23 hr
Dec 27, 1:17 PM CSTSpecial Weather StatementMOBChoctaw43 min
Dec 27, 3:49 PM CSTSpecial Weather StatementMOBChoctaw56 min
Dec 27, 4:27 PM CSTAreal Flood AdvisoryMOBChoctaw3 hr
Dec 27, 4:36 PM CSTSpecial Weather StatementMOBMarengo39 min
Dec 27, 5:01 PM CSTSpecial Weather StatementMOBClarke, Washington, Wilcox59 min
Dec 27, 5:07 PM CSTAreal Flood AdvisoryMOBChoctaw, Clarke, Washington3 hr
Dec 27, 5:27 PM CSTFlash Flood WarningMOBChoctaw, Washington6 hr
Dec 27, 11:05 AM CSTRiver Flood WarningMOBGeorge, Greene, Perry15 days
Dec 27, 11:11 AM CSTRiver Flood WarningMOBGeorge, Greene, Wayne17 days
Dec 27, 3:09 PM CSTSpecial Weather StatementMOBWayne51 min
Dec 27, 4:12 PM CSTSpecial Weather StatementMOBPerry48 min
Dec 26, 9:47 PM CSTRiver Flood WarningMOBOkaloosa37 hr

Nearby

Wind Advisories in Alabama, 2018Wind Advisories in Mississippi, 2018Wind Advisories in Florida, 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.