Alert archive / Georgia / Frost Advisories in 2021
Frost Advisory 4, NWS Atlanta, GA
NWS Atlanta, GA issued this frost advisory at Oct 17, 2021, 2:43 PM EDT for 5 counties in Georgia. It took effect at Oct 18, 2021, 5:00 AM EDT. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Oct 17, 2021, 2:43 PM EDT (18:43 UTC)
- In effect from
- Oct 18, 2021, 5:00 AM EDT
- Expired
- Oct 18, 2021, 9:00 AM EDT
- In force
- 4 hr
- Issued by
- NWS Atlanta, GA
Counties Fannin County, GA, Lumpkin County, GA, Towns County, GA, Union County, GA, White County, GA
The radar
The Greer radar (KGSP), 159 km from the middle of the area, began a volume at 18:42 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
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 6.7 hours before the alert went out and 163 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
- 1702 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- -80 m²/s²
- 0-3 km storm-relative helicity
- 49 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
806 WWUS72 KFFC 171843 NPWFFC URGENT - WEATHER MESSAGE National Weather Service Peachtree City GA 243 PM EDT Sun Oct 17 2021 GAZ006-008-009-015-016-180245- /O.NEW.KFFC.FR.Y.0004.211018T0900Z-211018T1300Z/ Fannin-Union-Towns-Lumpkin-White- Including the cities of Dahlonega and Cleveland 243 PM EDT Sun Oct 17 2021 ...FROST ADVISORY IN EFFECT FROM 5 AM TO 9 AM EDT MONDAY... * WHAT...Temperatures falling into the Mid 30s will result in frost formation. * WHERE...Fannin, Union, Towns, Lumpkin and White Counties. * WHEN...From 5 AM to 9 AM EDT Monday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. * ADDITIONAL DETAILS...Isolated spots, particularly in sheltered valleys, may briefly fall to near freezing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
2 follow-up statements
895 WWUS72 KFFC 180135 NPWFFC URGENT - WEATHER MESSAGE National Weather Service Peachtree City GA 935 PM EDT Sun Oct 17 2021 GAZ006-008-009-015-016-180945- /O.CON.KFFC.FR.Y.0004.211018T0900Z-211018T1300Z/ Fannin-Union-Towns-Lumpkin-White- Including the cities of Dahlonega and Cleveland 935 PM EDT Sun Oct 17 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM 5 AM TO 9 AM EDT MONDAY... * WHAT...Temperatures around 36 degrees will result in frost formation. * WHERE...Fannin, Union, Towns, Lumpkin and White Counties. * WHEN...From 5 AM to 9 AM EDT Monday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. * ADDITIONAL DETAILS...Isolated spots, particularly in sheltered valleys, may briefly fall to near freezing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
521 WWUS72 KFFC 180808 NPWFFC URGENT - WEATHER MESSAGE National Weather Service Peachtree City GA 408 AM EDT Mon Oct 18 2021 GAZ006-008-009-015-016-181300- /O.CON.KFFC.FR.Y.0004.211018T0900Z-211018T1300Z/ Fannin-Union-Towns-Lumpkin-White- Including the cities of Dahlonega and Cleveland 408 AM EDT Mon Oct 18 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... * WHAT...Temperatures around 36 degrees will result in frost formation. * WHERE...Fannin, Union, Towns, Lumpkin and White Counties. * WHEN...From 5 AM to 9 AM EDT Monday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. * ADDITIONAL DETAILS...Isolated spots, particularly in sheltered valleys, may briefly fall to near freezing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
Nearby
Frost Advisories in Georgia, 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.