Alert archive / Alabama / Frost Advisories in 2017
Frost Advisory 2, NWS Mobile, AL
NWS Mobile, AL issued this frost advisory at Oct 29, 2017, 3:57 AM CDT for 12 counties in Alabama; Escambia County, Okaloosa County, Santa Rosa County, Florida; Greene County, Perry County, Wayne County, Mississippi. It took effect at Oct 30, 2017, 3:00 AM CDT. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- Oct 29, 2017, 3:57 AM CDT (08:57 UTC)
- In effect from
- Oct 30, 2017, 3:00 AM CDT
- Expired
- Oct 30, 2017, 8:00 AM CDT
- In force
- 5 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, Greene County, MS, Perry County, MS, Wayne County, MS
The radar
The Mobile radar (KMOB), 95 km from the middle of the area, began a volume at 08:55 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 00:00Z, 9.0 hours before the alert went out and 222 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
- 1054 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- -83 m²/s²
- 0-3 km storm-relative helicity
- 48 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
831 WWUS74 KMOB 290857 NPWMOB URGENT - WEATHER MESSAGE National Weather Service Mobile AL 357 AM CDT Sun Oct 29 2017 ...A FROST ADVISORY IS IN EFFECT FOR CHOCTAW AND WAYNE COUNTIES THROUGH 8 AM THIS MORNING... ...A FROST ADVISORY IS NOW IN EFFECT FOR CHOCTAW, WAYNE, WASHINGTON, CLARKE, WILCOX, MONROE, CONECUH, BUTLER, CRENSHAW, COVINGTON, PERRY AND GREENE COUNTIES FROM 3 AM TO 8 AM MONDAY MORNING... ALZ051-MSZ067-291700- /O.NEW.KMOB.FR.Y.0002.171030T0800Z-171030T1300Z/ /O.CON.KMOB.FR.Y.0001.000000T0000Z-171029T1300Z/ Choctaw-Wayne- Including the cities of Butler, Lisman, Silas, and Waynesboro 357 AM CDT Sun Oct 29 2017 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING... ...FROST ADVISORY ALSO IN EFFECT FROM 3 AM TO 8 AM CDT MONDAY MORNING... * TEMPERATURE...Lows ranging from 33 to 36 degrees for a few hours early this morning over Wayne and Choctaw counties, and then falling to 34 to 37 degrees for several hours early Monday morning over most of the interior counties, generally along and north of Highway 84. A few low lying areas and normally colder locations could briefly drop into the lower 30s. * IMPACTS...Areas of frost could damage or kill sensitive outdoor vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Frost Advisory means that widespread frost is expected. Sensitive outdoor plants may be killed if left uncovered. && $$ ALZ052>058-060-MSZ075-076-291700- /O.NEW.KMOB.FR.Y.0002.171030T0800Z-171030T1300Z/ Washington-Clarke-Wilcox-Monroe-Conecuh-Butler-Crenshaw-Covington- Perry-Greene- Including the cities of Chatom, Millry, Grove Hill, Jackson, Thomasville, Camden, Pine Hill, Homewood, Monroeville, Evergreen, Greenville, Brantley, Luverne, Andalusia, Opp, Beaumont, New Augusta, Richton, Leakesville, and McLain 357 AM CDT Sun Oct 29 2017 ...FROST ADVISORY IN EFFECT FROM 3 AM TO 8 AM CDT MONDAY MORNING... * TEMPERATURE...Lowering to 34 to 37 degrees across most of the area. A few low lying areas and normally colder locations could briefly drop into the lower 30s. * IMPACTS...Areas of frost could damage or kill sensitive outdoor vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Frost Advisory means that widespread frost is expected. Sensitive outdoor plants may be killed if left uncovered. && $$
3 follow-up statements
165 WWUS74 KMOB 291719 AAA NPWMOB URGENT - WEATHER MESSAGE...UPDATED National Weather Service Mobile AL 1219 PM CDT Sun Oct 29 2017 ALZ051>058-060-MSZ067-075-076-300200- /O.CON.KMOB.FR.Y.0002.171030T0800Z-171030T1300Z/ Choctaw-Washington-Clarke-Wilcox-Monroe-Conecuh-Butler-Crenshaw- Covington-Wayne-Perry-Greene- Including the cities of Butler, Lisman, Silas, Chatom, Millry, Grove Hill, Jackson, Thomasville, Camden, Pine Hill, Homewood, Monroeville, Evergreen, Greenville, Brantley, Luverne, Andalusia, Opp, Waynesboro, Beaumont, New Augusta, Richton, Leakesville, and McLain 1219 PM CDT Sun Oct 29 2017 ...FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 8 AM CDT MONDAY... * TEMPERATURE...Lowering to 34 to 37 degrees across most of the area. A few low lying areas and normally colder locations could briefly drop into the lower 30s. * IMPACTS...Areas of frost could damage or kill sensitive outdoor vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Frost Advisory means that widespread frost is expected. Sensitive outdoor plants may be killed if left uncovered. && $$
424 WWUS74 KMOB 292033 NPWMOB URGENT - WEATHER MESSAGE National Weather Service Mobile AL 333 PM CDT Sun Oct 29 2017 ALZ059-261-262-FLZ201-203-205-300500- /O.EXA.KMOB.FR.Y.0002.171030T0800Z-171030T1300Z/ Escambia-Mobile Inland-Baldwin Inland-Escambia Inland- Santa Rosa Inland-Okaloosa Inland- Including the cities of Atmore, Brewton, Flomaton, Citronelle, Saraland, Stockton, Century, Molino, Walnut Hill, Jay, Milton, and Crestview 333 PM CDT Sun Oct 29 2017 ...FROST ADVISORY IN EFFECT FROM 3 AM TO 8 AM CDT MONDAY... The National Weather Service in Mobile has issued a Frost Advisory, which is in effect from 3 AM to 8 AM CDT Monday. * TEMPERATURE...Lowering to 34 to 37 degrees across most of the area. A few low lying areas and normally colder locations could briefly drop into the lower 30s. * IMPACTS...Areas of frost could damage or kill sensitive outdoor vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Frost Advisory means that widespread frost is expected. Sensitive outdoor plants may be killed if left uncovered. && $$ ALZ051>058-060-MSZ067-075-076-300500- /O.CON.KMOB.FR.Y.0002.171030T0800Z-171030T1300Z/ Choctaw-Washington-Clarke-Wilcox-Monroe-Conecuh-Butler-Crenshaw- Covington-Wayne-Perry-Greene- Including the cities of Butler, Lisman, Silas, Chatom, Millry, Grove Hill, Jackson, Thomasville, Camden, Pine Hill, Homewood, Monroeville, Evergreen, Greenville, Brantley, Luverne, Andalusia, Opp, Waynesboro, Beaumont, New Augusta, Richton, Leakesville, and McLain 333 PM CDT Sun Oct 29 2017 ...FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 8 AM CDT MONDAY... * TEMPERATURE...Lowering to 34 to 37 degrees across most of the area. A few low lying areas and normally colder locations could briefly drop into the lower 30s. * IMPACTS...Areas of frost could damage or kill sensitive outdoor vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Frost Advisory means that widespread frost is expected. Sensitive outdoor plants may be killed if left uncovered. && $$
962 WWUS74 KMOB 300419 NPWMOB URGENT - WEATHER MESSAGE National Weather Service Mobile AL 1119 PM CDT Sun Oct 29 2017 ALZ051>060-261-262-FLZ201-203-205-MSZ067-075-076-301300- /O.CON.KMOB.FR.Y.0002.171030T0800Z-171030T1300Z/ Choctaw-Washington-Clarke-Wilcox-Monroe-Conecuh-Butler-Crenshaw- Escambia-Covington-Mobile Inland-Baldwin Inland-Escambia Inland- Santa Rosa Inland-Okaloosa Inland-Wayne-Perry-Greene- Including the cities of Butler, Lisman, Silas, Chatom, Millry, Grove Hill, Jackson, Thomasville, Camden, Pine Hill, Homewood, Monroeville, Evergreen, Greenville, Brantley, Luverne, Atmore, Brewton, Flomaton, Andalusia, Opp, Citronelle, Saraland, Stockton, Century, Molino, Walnut Hill, Jay, Milton, Crestview, Waynesboro, Beaumont, New Augusta, Richton, Leakesville, and McLain 1119 PM CDT Sun Oct 29 2017 ...FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 8 AM CDT MONDAY... * TEMPERATURE...Lowering to 34 to 37 degrees across the advisory area. A few low lying areas and normally colder locations could briefly drop into the lower 30s. * IMPACTS...Areas of frost could damage or kill sensitive outdoor vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Frost Advisory means that frost is expected. Sensitive outdoor plants may be killed if left uncovered. && $$
Nearby
Frost Advisories in Alabama, 2017Frost Advisories in Florida, 2017Frost Advisories in Mississippi, 2017Every frost advisory in 2017
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.