Alert archive / Alabama / Frost Advisories in 2021
Frost Advisory 5, NWS Mobile, AL
NWS Mobile, AL issued this frost advisory at Nov 29, 2021, 2:33 PM CST for Baldwin County, Covington County, Escambia County, Alabama; Escambia County, Okaloosa County, Santa Rosa County, Florida. It took effect at Nov 29, 2021, 11:00 PM CST. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- Nov 29, 2021, 2:33 PM CST (20:33 UTC)
- In effect from
- Nov 29, 2021, 11:00 PM CST
- Expired
- Nov 30, 2021, 7:00 AM CST
- In force
- 8 hr
- Issued by
- NWS Mobile, AL
Counties Baldwin County, AL, Covington County, AL, Escambia County, AL, Escambia County, FL, Okaloosa County, FL, Santa Rosa County, FL
The radar
The Eglin Afb radar (KEVX), 112 km from the middle of the area, began a volume at 20:36 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, 8.6 hours before the alert went out and 262 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1378 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- -43 m²/s²
- 0-3 km storm-relative helicity
- 19 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
921 WWUS74 KMOB 292033 NPWMOB URGENT - WEATHER MESSAGE National Weather Service Mobile AL 233 PM CST Mon Nov 29 2021 ALZ059-060-262-264-266-FLZ201>206-300500- /O.NEW.KMOB.FR.Y.0005.211130T0500Z-211130T1300Z/ Escambia-Covington-Baldwin Inland-Baldwin Central-Baldwin Coastal- Escambia Inland-Escambia Coastal-Santa Rosa Inland- Santa Rosa Coastal-Okaloosa Inland-Okaloosa Coastal- Including the cities of Atmore, Brewton, Flomaton, Andalusia, Opp, Stockton, Bay Minette, Daphne, Fairhope, Foley, Spanish Fort, 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, and Wright 233 PM CST Mon Nov 29 2021 ...FROST ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 7 AM CST TUESDAY... * WHAT...Temperatures as low as 32 will result in frost formation. * WHERE...Portions of south central and southwest Alabama and northwest Florida. * WHEN...From 11 PM this evening to 7 AM CST Tuesday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ MM
1 follow-up statement
674 WWUS74 KMOB 300526 NPWMOB URGENT - WEATHER MESSAGE National Weather Service Mobile AL 1126 PM CST Mon Nov 29 2021 ALZ059-060-262-264-266-FLZ201>206-301300- /O.CON.KMOB.FR.Y.0005.000000T0000Z-211130T1300Z/ Escambia-Covington-Baldwin Inland-Baldwin Central-Baldwin Coastal- Escambia Inland-Escambia Coastal-Santa Rosa Inland- Santa Rosa Coastal-Okaloosa Inland-Okaloosa Coastal- Including the cities of Atmore, Brewton, Flomaton, Andalusia, Opp, Stockton, Bay Minette, Daphne, Fairhope, Foley, Spanish Fort, Fort Morgan, Gulf Shores, Orange Beach, Century, Molino, Walnut Hill, Beulah, Ensley, Fort Pickens, Pensacola, Pensacola Beach, Perdido Bay, Jay, Milton, Bagdad, Gulf Breeze, Navarre, Crestview, Destin, Eglin AFB, Fort Walton Beach, Niceville, Seminole, Valparaiso, and Wright 1126 PM CST Mon Nov 29 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 7 AM CST TUESDAY... * WHAT...Temperatures as low as 32 will result in frost formation. * WHERE...Portions of south central and southwest Alabama and northwest Florida. * WHEN...Until 7 AM CST Tuesday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
Nearby
Frost Advisories in Alabama, 2021Frost Advisories in Florida, 2021Every frost 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.