Alert archive / Alabama / Frost Advisories in 2024
Frost Advisory 4, NWS Mobile, AL
NWS Mobile, AL issued this frost advisory at Nov 23, 2024, 12:01 PM CST for 10 counties in Alabama; Wayne County, Mississippi. It took effect at Nov 24, 2024, 1:00 AM CST. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- Nov 23, 2024, 12:01 PM CST (18:01 UTC)
- In effect from
- Nov 24, 2024, 1:00 AM CST
- Expired
- Nov 24, 2024, 7:00 AM CST
- In force
- 6 hr
- Issued by
- NWS Mobile, AL
Counties Butler County, AL, Choctaw County, AL, Clarke County, AL, Conecuh County, AL, Covington County, AL, Crenshaw County, AL, Escambia County, AL, Monroe County, AL, Washington County, AL, Wilcox County, AL, Wayne County, MS
The radar
The Mobile radar (KMOB), 131 km from the middle of the area, began a volume at 17:59 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
Birmingham, AL (KBMX), launched 12:00Z, 6.0 hours before the alert went out and 185 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
- 1437 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 12 m²/s²
- 0-3 km storm-relative helicity
- -33 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
918 WWUS74 KMOB 231801 NPWMOB URGENT - WEATHER MESSAGE National Weather Service Mobile AL 1201 PM CST Sat Nov 23 2024 ALZ051>060-MSZ067-240215- /O.NEW.KMOB.FR.Y.0004.241124T0700Z-241124T1300Z/ Choctaw-Washington-Clarke-Wilcox-Monroe-Conecuh-Butler-Crenshaw- Escambia-Covington-Wayne- Including the cities of Silas, Pine Hill, Camden, Greenville, Flomaton, Atmore, Butler, Evergreen, Grove Hill, Luverne, Opp, Andalusia, Chatom, Lisman, Monroeville, Brantley, Homewood, Thomasville, Waynesboro, Millry, Jackson, and Brewton 1201 PM CST Sat Nov 23 2024 ...FROST ADVISORY IN EFFECT FROM 1 AM TO 7 AM CST SUNDAY... * WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...Portions of south central and southwest Alabama and southeast Mississippi. * WHEN...From 1 AM to 7 AM CST Sunday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
2 follow-up statements
641 WWUS74 KMOB 232345 NPWMOB URGENT - WEATHER MESSAGE National Weather Service Mobile AL 545 PM CST Sat Nov 23 2024 ALZ051>060-MSZ067-240900- /O.CON.KMOB.FR.Y.0004.241124T0700Z-241124T1300Z/ Choctaw-Washington-Clarke-Wilcox-Monroe-Conecuh-Butler-Crenshaw- Escambia-Covington-Wayne- Including the cities of Andalusia, Thomasville, Jackson, Opp, Brewton, Silas, Pine Hill, Evergreen, Waynesboro, Camden, Flomaton, Monroeville, Lisman, Grove Hill, Millry, Homewood, Atmore, Butler, Greenville, Chatom, Luverne, and Brantley 545 PM CST Sat Nov 23 2024 ...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 7 AM CST SUNDAY... * WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...Portions of south central and southwest Alabama and southeast Mississippi. * WHEN...From 1 AM to 7 AM CST Sunday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
263 WWUS74 KMOB 240902 NPWMOB URGENT - WEATHER MESSAGE National Weather Service Mobile AL 302 AM CST Sun Nov 24 2024 ALZ051>060-MSZ067-241300- /O.CON.KMOB.FR.Y.0004.000000T0000Z-241124T1300Z/ Choctaw-Washington-Clarke-Wilcox-Monroe-Conecuh-Butler-Crenshaw- Escambia-Covington-Wayne- Including the cities of Waynesboro, Evergreen, Silas, Chatom, Jackson, Millry, Opp, Greenville, Brantley, Brewton, Grove Hill, Luverne, Butler, Camden, Lisman, Atmore, Andalusia, Pine Hill, Homewood, Flomaton, Thomasville, and Monroeville 302 AM CST Sun Nov 24 2024 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 7 AM CST THIS MORNING... * WHAT...Temperatures as low as 37 will result in frost formation. * WHERE...Portions of south central and southwest Alabama and southeast Mississippi. * WHEN...Until 7 AM CST this morning. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ MM
What forecasters said that day
The local office's own words before this frost advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Mobile, AL wrote its last area forecast discussion before this frost advisory went out at Nov 23, 6:22 AM CST, 5 hours 39 minutes earlier.
Area forecast discussion, Nov 23, 6:22 AM CST, 5 hours 39 minutes before
Area Forecast Discussion
National Weather Service Mobile AL
622 AM CST Sat Nov 23 2024
...New AVIATION...
.AVIATION...
(12Z TAFS)
Issued at 622 AM CST Sat Nov 23 2024
VFR conditions will prevail through the next 24 hours. /13
&&
.PREV DISCUSSION... /issued 446 AM CST Sat Nov 23 2024/
..New NEAR TERM, SHORT TERM, LONG TERM, MARINE...
NEAR TERM...
(Now through Sunday)
Issued at 446 AM CST Sat Nov 23 2024
Surface high pressure settles in keeping the region
cool and dry through Saturday night before beginning a warming trend
Sunday. A Freeze Warning remains in effect through early this
morning for much of the forecast area, with a frost advisory for
interior portions of our coastal counties. Despite the cooler start
today, highs will be a tad warmer topping out in the middle 60's for
most locations. We have one more cold night ahead tonight with lows
dipping into the middle to upper 30's inland and lower 40's nearer
the coast. Sunday will be much warmer, with highs rising into the
lower to middle 70's for many locations, warmest across southeastern
Mississippi. Sunday night will be notably warmer, with lows falling
into the lower to middle 50's. The rip current risk remains low
through Sunday night. MM/25
SHORT AND LONG TERM...
(Monday through Friday)
Issued at 446 AM CST Sat Nov 23 2024
A short wave moving across the Ohio Valley will send a cold front
toward the coast on Tuesday. The front will stall near the coast
with a brief shot of cooler and drier air moving into the area on
Tuesday. The stalled front will return northward as a warm front
on Wednesday as a stronger shortwave moves across the plains. This
will bring deep layer moisture back into the area long with
warmer temps. Another cold front will move across the area late
Thursday into Friday with more cool and dry air returning to the
area. /13
MARINE...
Issued at 446 AM CST Sat Nov 23 2024
Light northwesterly to northerly flow prevails today, becoming a
light onshore flow Sunday into Monday. Another weak cold front moves
across the marine waters Tuesday bringing a light offshore flow
Tuesday into Wednesday. Late Wednesday into Thursday winds become a
light to moderate onshore flow ahead of a more potent cold front
that moves across the area Thursday evening into Friday. A moderate
offshore flow prevails by the end of the week in the wake of the
cold front. MM/25
&&
.PRELIMINARY POINT TEMPS/POPS...
Mobile 66 44 74 57 78 62 73 52 / 0 0 0 0 0 10 10 0
Pensacola 65 48 71 62 76 67 74 56 / 0 0 0 0 0 10 10 0
Destin 65 53 69 65 77 67 77 58 / 0 0 0 0 0 0 0 0
Evergreen 66 37 72 50 78 57 70 45 / 0 0 0 0 0 10 10 0
Waynesboro 65 38 73 52 77 57 68 43 / 0 0 0 0 0 30 0 0
Camden 64 37 72 50 76 57 67 43 / 0 0 0 0 0 30 10 0
Crestview 67 38 72 51 79 59 77 49 / 0 0 0 0 0 10 10 0
&&
.MOB WATCHES/WARNINGS/ADVISORIES...
AL...Freeze Warning until 8 AM CST this morning for ALZ051>058-060.
Frost Advisory until 8 AM CST this morning for ALZ059-261-262.
FL...Frost Advisory until 8 AM CST this morning for FLZ201-203-205.
MS...Freeze Warning until 8 AM CST this morning for MSZ067.
Frost Advisory until 8 AM CST this morning for MSZ075-076-078-
079.
GM...None.
&&
This product is also available on the web at:
www.weather.gov/mobNearby
Frost Advisories in Alabama, 2024Frost Advisories in Mississippi, 2024Every frost advisory in 2024
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.