Alert archive / Mississippi / Frost Advisories in 2021
Frost Advisory 3, NWS Mobile, AL
NWS Mobile, AL issued this frost advisory at Nov 13, 2021, 2:40 AM CST for 4 counties in Mississippi; 4 counties in Alabama; Escambia County, Okaloosa County, Santa Rosa County, Florida. It took effect at Nov 14, 2021, 3:00 AM CST. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- Nov 13, 2021, 2:40 AM CST (08:40 UTC)
- In effect from
- Nov 14, 2021, 3:00 AM CST
- Expired
- Nov 14, 2021, 8:00 AM CST
- In force
- 5 hr
- Issued by
- NWS Mobile, AL
Counties Baldwin County, AL, Covington County, AL, Escambia County, AL, Mobile County, AL, Escambia County, FL, Okaloosa County, FL, Santa Rosa County, FL, George County, MS, Greene County, MS, Perry County, MS, Stone County, MS
The radar
The Mobile radar (KMOB), 47 km from the middle of the area, began a volume at 08:40 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, 8.7 hours before the alert went out and 194 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
- 27 J/kg
- Mixed-layer CIN
- -106 J/kg
- Mixed-layer LCL
- 1038 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- 87 m²/s²
- 0-3 km storm-relative helicity
- 105 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
864 WWUS74 KMOB 130840 NPWMOB URGENT - WEATHER MESSAGE National Weather Service Mobile AL 240 AM CST Sat Nov 13 2021 ALZ051>054-MSZ067-131700- /O.UPG.KMOB.FZ.A.0003.211114T0900Z-211114T1400Z/ /O.NEW.KMOB.FZ.W.0003.211114T0900Z-211114T1400Z/ Choctaw-Washington-Clarke-Wilcox-Wayne- Including the cities of Butler, Lisman, Silas, Chatom, Millry, Grove Hill, Jackson, Thomasville, Camden, Pine Hill, and Waynesboro 240 AM CST Sat Nov 13 2021 ...FREEZE WARNING IN EFFECT FROM 3 AM TO 8 AM CST SUNDAY... * WHAT...Sub-freezing temperatures as low as 30 expected. * WHERE...In Alabama, Choctaw, Washington, Clarke and Wilcox Counties. In Mississippi, Wayne County. * WHEN...From 3 AM to 8 AM CST Sunday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ ALZ055>058-131700- /O.NEW.KMOB.FZ.W.0003.211114T0900Z-211114T1400Z/ Monroe-Conecuh-Butler-Crenshaw- Including the cities of Homewood, Monroeville, Evergreen, Greenville, Brantley, and Luverne 240 AM CST Sat Nov 13 2021 ...FREEZE WARNING IN EFFECT FROM 3 AM TO 8 AM CST SUNDAY... * WHAT...Sub-freezing temperatures as low as 31 expected. * WHERE...Monroe, Conecuh, Butler and Crenshaw Counties. * WHEN...From 3 AM to 8 AM CST Sunday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ ALZ059-060-261>264-FLZ201-203-205-MSZ075-076-078-079-131700- /O.NEW.KMOB.FR.Y.0003.211114T0900Z-211114T1400Z/ Escambia-Covington-Mobile Inland-Baldwin Inland-Mobile Central- Baldwin Central-Escambia Inland-Santa Rosa Inland-Okaloosa Inland- Perry-Greene-Stone-George- Including the cities of Atmore, Brewton, Flomaton, Andalusia, Opp, Citronelle, Saraland, Stockton, Mobile, Prichard, Theodore, Bay Minette, Daphne, Fairhope, Foley, Spanish Fort, Century, Molino, Walnut Hill, Jay, Milton, Crestview, Beaumont, New Augusta, Richton, Leakesville, McLain, Wiggins, and Lucedale 240 AM CST Sat Nov 13 2021 ...FROST ADVISORY IN EFFECT FROM 3 AM TO 8 AM CST SUNDAY... * WHAT...Temperatures as low as 33 to 36 and calm winds will result in frost formation. * WHERE...Portions of south central and southwest Alabama, northwest Florida and southeast Mississippi. * WHEN...From 3 AM to 8 AM CST Sunday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
3 follow-up statements
202 WWUS74 KMOB 131713 NPWMOB URGENT - WEATHER MESSAGE National Weather Service Mobile AL 1113 AM CST Sat Nov 13 2021 ALZ051>058-MSZ067-140200- /O.CON.KMOB.FZ.W.0003.211114T0900Z-211114T1400Z/ Choctaw-Washington-Clarke-Wilcox-Monroe-Conecuh-Butler-Crenshaw- Wayne- Including the cities of Butler, Lisman, Silas, Chatom, Millry, Grove Hill, Jackson, Thomasville, Camden, Pine Hill, Homewood, Monroeville, Evergreen, Greenville, Brantley, Luverne, and Waynesboro 1113 AM CST Sat Nov 13 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM 3 AM TO 8 AM CST SUNDAY... * WHAT...Sub-freezing temperatures as low as 30 expected. * WHERE...In Alabama, Choctaw, Washington, Clarke and Wilcox Counties. In Mississippi, Wayne County. * WHEN...From 3 AM to 8 AM CST Sunday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ ALZ059-060-261>264-FLZ201-203-205-MSZ075-076-078-079-140200- /O.CON.KMOB.FR.Y.0003.211114T0900Z-211114T1400Z/ Escambia-Covington-Mobile Inland-Baldwin Inland-Mobile Central- Baldwin Central-Escambia Inland-Santa Rosa Inland-Okaloosa Inland- Perry-Greene-Stone-George- Including the cities of Atmore, Brewton, Flomaton, Andalusia, Opp, Citronelle, Saraland, Stockton, Mobile, Prichard, Theodore, Bay Minette, Daphne, Fairhope, Foley, Spanish Fort, Century, Molino, Walnut Hill, Jay, Milton, Crestview, Beaumont, New Augusta, Richton, Leakesville, McLain, Wiggins, and Lucedale 1113 AM CST Sat Nov 13 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 8 AM CST SUNDAY... * WHAT...Temperatures as low as 33 to 36 and calm winds will result in frost formation. * WHERE...Portions of south central and southwest Alabama, northwest Florida and southeast Mississippi. * WHEN...From 3 AM to 8 AM CST Sunday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
541 WWUS74 KMOB 140154 NPWMOB URGENT - WEATHER MESSAGE National Weather Service Mobile AL 754 PM CST Sat Nov 13 2021 ALZ051>058-MSZ067-141000- /O.CON.KMOB.FZ.W.0003.211114T0900Z-211114T1400Z/ Choctaw-Washington-Clarke-Wilcox-Monroe-Conecuh-Butler-Crenshaw- Wayne- Including the cities of Butler, Lisman, Silas, Chatom, Millry, Grove Hill, Jackson, Thomasville, Camden, Pine Hill, Homewood, Monroeville, Evergreen, Greenville, Brantley, Luverne, and Waynesboro 754 PM CST Sat Nov 13 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM 3 AM TO 8 AM CST SUNDAY... * WHAT...Sub-freezing temperatures as low as 30 expected. * WHERE...In Alabama, Wilcox, Crenshaw, Choctaw, Washington, Clarke, Monroe, Conecuh and Butler Counties. In Mississippi, Wayne County. * WHEN...From 3 AM to 8 AM CST Sunday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ ALZ059-060-261>264-FLZ201-203-205-MSZ075-076-078-079-141000- /O.CON.KMOB.FR.Y.0003.211114T0900Z-211114T1400Z/ Escambia-Covington-Mobile Inland-Baldwin Inland-Mobile Central- Baldwin Central-Escambia Inland-Santa Rosa Inland-Okaloosa Inland- Perry-Greene-Stone-George- Including the cities of Atmore, Brewton, Flomaton, Andalusia, Opp, Citronelle, Saraland, Stockton, Mobile, Prichard, Theodore, Bay Minette, Daphne, Fairhope, Foley, Spanish Fort, Century, Molino, Walnut Hill, Jay, Milton, Crestview, Beaumont, New Augusta, Richton, Leakesville, McLain, Wiggins, and Lucedale 754 PM CST Sat Nov 13 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 8 AM CST SUNDAY... * WHAT...Temperatures as low as 33 to 36 and calm winds will result in frost formation. * WHERE...Portions of south central and southwest Alabama, northwest Florida and southeast Mississippi. * WHEN...From 3 AM to 8 AM CST Sunday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
567 WWUS74 KMOB 140811 NPWMOB URGENT - WEATHER MESSAGE National Weather Service Mobile AL 211 AM CST Sun Nov 14 2021 ALZ051>058-MSZ067-141400- /O.CON.KMOB.FZ.W.0003.211114T0900Z-211114T1400Z/ Choctaw-Washington-Clarke-Wilcox-Monroe-Conecuh-Butler-Crenshaw- Wayne- Including the cities of Butler, Lisman, Silas, Chatom, Millry, Grove Hill, Jackson, Thomasville, Camden, Pine Hill, Homewood, Monroeville, Evergreen, Greenville, Brantley, Luverne, and Waynesboro 211 AM CST Sun Nov 14 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM CST THIS MORNING... * WHAT...Sub-freezing temperatures as low as 30 expected. * WHERE...In Alabama, Wilcox, Crenshaw, Choctaw, Washington, Clarke, Monroe, Conecuh and Butler Counties. In Mississippi, Wayne County. * WHEN...Until 8 AM CST this morning. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ ALZ059-060-261>264-FLZ201-203-205-MSZ075-076-078-079-141400- /O.CON.KMOB.FR.Y.0003.211114T0900Z-211114T1400Z/ Escambia-Covington-Mobile Inland-Baldwin Inland-Mobile Central- Baldwin Central-Escambia Inland-Santa Rosa Inland-Okaloosa Inland- Perry-Greene-Stone-George- Including the cities of Atmore, Brewton, Flomaton, Andalusia, Opp, Citronelle, Saraland, Stockton, Mobile, Prichard, Theodore, Bay Minette, Daphne, Fairhope, Foley, Spanish Fort, Century, Molino, Walnut Hill, Jay, Milton, Crestview, Beaumont, New Augusta, Richton, Leakesville, McLain, Wiggins, and Lucedale 211 AM CST Sun Nov 14 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CST THIS MORNING... * WHAT...Temperatures as low as 33 to 36 and calm winds will result in frost formation. * WHERE...Portions of south central and southwest Alabama, northwest Florida and southeast Mississippi. * WHEN...Until 8 AM CST this morning. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 13, 2:40 AM CST | Freeze Warning | MOB | Wayne | 29 hr |
Nearby
Frost Advisories in Mississippi, 2021Frost 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.