Alert archive / Alabama / Wind Advisories in 2021

Wind Advisory 9, NWS Mobile, AL

April 24, 202112 counties in Alabama; 5 counties in Mississippi; Escambia County, Okaloosa County, Santa Rosa County, Florida

NWS Mobile, AL issued this wind advisory at Apr 24, 2021, 7:39 PM CDT for 12 counties in Alabama; 5 counties in Mississippi; Escambia County, Okaloosa County, Santa Rosa County, Florida. It took effect at Apr 24, 2021, 8:00 PM CDT. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued: Apr 24, 2021, 7:39 PM CDT (00:39 UTC)
In effect from: Apr 24, 2021, 8:00 PM CDT
Expired: Apr 25, 2021, 4:00 AM CDT
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 00:39 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, 0.7 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1720 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 1108 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 63 m²/s²
0-3 km storm-relative helicity: 108 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 2.6

Open this sounding in Storm Lab

The text

As transmitted.

071 
WWUS74 KMOB 250039
NPWMOB

URGENT - WEATHER MESSAGE
National Weather Service Mobile AL
739 PM CDT Sat Apr 24 2021

ALZ051>060-261>266-FLZ201>206-MSZ067-075-076-078-079-250900-
/O.NEW.KMOB.WI.Y.0009.210425T0100Z-210425T0900Z/
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
739 PM CDT Sat Apr 24 2021

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

* WHAT...Northwest winds 10 to 20 mph with gusts up to 35 mph 
  expected.

* WHERE...Portions of south central and southwest Alabama, 
  northwest Florida and southeast Mississippi.

* WHEN...Until 4 AM CDT Sunday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 24, 7:00 PM CDT	Severe Thunderstorm Warning	MOB	Conecuh, Covington, Escambia	45 min
Apr 24, 7:01 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin	15 min
Apr 24, 7:48 PM CDT	Small Craft Advisory	MOB		13 hr
Apr 24, 8:57 PM CDT	River Flood Warning	MOB	Covington, Escambia	27 hr
Apr 24, 8:55 PM CDT	River Flood Warning	MOB	Okaloosa	4 days

Nearby

Wind Advisories in Alabama, 2021 Wind Advisories in Mississippi, 2021 Wind Advisories in Florida, 2021 Every wind advisory in 2021

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.