Alert archive / Alabama / Wind Advisories in 2018

Wind Advisory 1, NWS Mobile, AL

January 12, 2018Escambia County, Okaloosa County, Santa Rosa County, Florida; 12 counties in Alabama; 5 counties in Mississippi

NWS Mobile, AL issued this wind advisory at Jan 12, 2018, 3:57 AM CST for Escambia County, Okaloosa County, Santa Rosa County, Florida; 12 counties in Alabama; 5 counties in Mississippi. It took effect at Jan 12, 2018, 9:00 AM CST. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Jan 12, 2018, 3:57 AM CST (09:57 UTC)
In effect from
Jan 12, 2018, 9:00 AM CST
Expired
Jan 12, 2018, 1:11 PM CST
In force
4 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 10:01 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

Slidell Radar S, LA (KSIL), launched 00:00Z, 10.0 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 00:00Z on 2018-01-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 42 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 00:00Z on 2018-01-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 155 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
42 J/kg
Mixed-layer CIN
-19 J/kg
Mixed-layer LCL
746 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
155 m²/s²
0-3 km storm-relative helicity
140 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

992 
WWUS74 KMOB 120957
NPWMOB

URGENT - WEATHER MESSAGE
National Weather Service Mobile AL
357 AM CST Fri Jan 12 2018

...Windy Conditions Developing Later This Morning Over the Region...

ALZ051>060-261>266-FLZ201>206-MSZ067-075-076-078-079-121800-
/O.NEW.KMOB.WI.Y.0001.180112T1500Z-180113T0000Z/
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
357 AM CST Fri Jan 12 2018

...WIND ADVISORY IN EFFECT FROM 9 AM THIS MORNING TO 6 PM CST
THIS EVENING...

The National Weather Service in Mobile has issued a Wind
Advisory, which is in effect from 9 AM this morning to 6 PM CST
this evening. 

* TIMING...Mid Morning until early evening.

* WINDS...Sustained wind speeds 18 to 28 mph at times with
  frequent gusts to near 35 mph from late morning through mid 
  afternoon.

* IMPACTS...Light unsecured objects may be tossed about, such as
  lawn furniture and\or garbage cans. Dead or diseased tree limbs
  may also fall. If you are driving a high profile vehicle such as
  an 18-Wheeler or an R\V, use extra caution (especially on high
  bridges).

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.

&&

$$
1 follow-up statement
547 
WWUS74 KMOB 121911 AAA
NPWMOB

URGENT - WEATHER MESSAGE...UPDATED
National Weather Service Mobile AL
111 PM CST Fri Jan 12 2018

...WIND ADVISORY IS CANCELLED...

ALZ051>060-261>266-FLZ201>206-MSZ067-075-076-078-079-122015-
/O.CAN.KMOB.WI.Y.0001.000000T0000Z-180113T0000Z/
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
111 PM CST Fri Jan 12 2018

...WIND ADVISORY IS CANCELLED...

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

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 12, 4:36 AM CSTSpecial Marine WarningMOB24 min
Jan 12, 4:09 PM CSTHard Freeze WatchMOBChoctaw, Clarke, Mobile, Monroe, Washington, Wilcox13 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.