Alert archive / Georgia / Frost Advisories in 2021
Frost Advisory 7, NWS Atlanta, GA
NWS Atlanta, GA issued this frost advisory at Nov 6, 2021, 2:46 PM EDT for 25 counties in Georgia. It took effect at Nov 7, 2021, 3:00 AM EST. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- Nov 6, 2021, 2:46 PM EDT (18:46 UTC)
- In effect from
- Nov 7, 2021, 3:00 AM EST
- Expired
- Nov 7, 2021, 9:00 AM EST
- In force
- 6 hr
- Issued by
- NWS Atlanta, GA
All 25 counties
Bartow County, GA, Carroll County, GA, Catoosa County, GA, Chattooga County, GA, Cherokee County, GA, Cobb County, GA, Coweta County, GA, Dade County, GA, Dawson County, GA, Douglas County, GA, Floyd County, GA, Gilmer County, GA, Gordon County, GA, Haralson County, GA, Heard County, GA, Lumpkin County, GA, Meriwether County, GA, Murray County, GA, Paulding County, GA, Pickens County, GA, Polk County, GA, Troup County, GA, Walker County, GA, White County, GA, Whitfield County, GA
The radar
The Atlanta radar (KFFC), 93 km from the middle of the area, began a volume at 18:45 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, 6.8 hours before the alert went out and 94 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
- 1459 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- -36 m²/s²
- 0-3 km storm-relative helicity
- -3 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
363 WWUS72 KFFC 061846 NPWFFC URGENT - WEATHER MESSAGE National Weather Service Peachtree City GA 246 PM EDT Sat Nov 6 2021 GAZ006-008-009-070400- /O.UPG.KFFC.FZ.A.0005.211107T0900Z-211107T1300Z/ /O.NEW.KFFC.FZ.W.0004.211107T0900Z-211107T1400Z/ Fannin-Union-Towns- 246 PM EDT Sat Nov 6 2021 ...FREEZE WARNING IN EFFECT FROM 4 AM TO 9 AM EST SUNDAY... * WHAT...Subfreezing temperatures as low as 30 degrees are expected. * WHERE...Fannin, Union and Towns County in north Georgia. * WHEN...late tonight and early Sunday morning, between 4 AM and 9 AM. * IMPACTS...Temperatures at or below freezing for several hours could kill crops, other sensitive vegetation, and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. A Freeze Warning means sub-freezing temperatures are imminent or highly likely. These conditions will kill crops and other sensitive vegetation. && $$ GAZ001>005-007-011>016-019>021-030>032-041>043-052-053-066-067- 070400- /O.NEW.KFFC.FR.Y.0007.211107T0800Z-211107T1400Z/ Dade-Walker-Catoosa-Whitfield-Murray-Gilmer-Chattooga-Gordon- Pickens-Dawson-Lumpkin-White-Floyd-Bartow-Cherokee-Polk-Paulding- Cobb-Haralson-Carroll-Douglas-Heard-Coweta-Troup-Meriwether- Including the cities of Calhoun, Dahlonega, Cleveland, Rome, Cartersville, Marietta, Carrollton, Douglasville, and Newnan 246 PM EDT Sat Nov 6 2021 ...FROST ADVISORY IN EFFECT FROM 3 AM TO 9 AM EST SUNDAY... * WHAT...Temperatures dropping to the mid 30s will result in areas of frost. * WHERE...Much of west-central and northwest Georgia. * WHEN...Late tonight into early Sunday morning. * IMPACTS...Frost could kill or damage sensitive outdoor vegetation if left unprotected. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Frost Advisory means that widespread frost is expected. Sensitive outdoor plants may be killed if left uncovered. && $$
1 follow-up statement
601 WWUS72 KFFC 070838 NPWFFC URGENT - WEATHER MESSAGE National Weather Service Peachtree City GA 338 AM EST Sun Nov 7 2021 GAZ006-008-009-071400- /O.CON.KFFC.FZ.W.0004.211107T0900Z-211107T1400Z/ Fannin-Union-Towns- 338 AM EST Sun Nov 7 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM EST THIS MORNING... * WHAT...Subfreezing temperatures in the upper 20s to low 30s are expected. * WHERE...Fannin, Union and Towns County in north Georgia. * WHEN...Until 9 AM this morning. * IMPACTS...Temperatures at or below freezing for several hours could kill crops, other sensitive vegetation, and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. A Freeze Warning means sub-freezing temperatures are imminent or highly likely. These conditions will kill crops and other sensitive vegetation. && $$ GAZ001>005-007-011>016-019>021-030>032-041>043-052-053-066-067- 071400- /O.CON.KFFC.FR.Y.0007.000000T0000Z-211107T1400Z/ Dade-Walker-Catoosa-Whitfield-Murray-Gilmer-Chattooga-Gordon- Pickens-Dawson-Lumpkin-White-Floyd-Bartow-Cherokee-Polk-Paulding- Cobb-Haralson-Carroll-Douglas-Heard-Coweta-Troup-Meriwether- Including the cities of Calhoun, Dahlonega, Cleveland, Rome, Cartersville, Marietta, Carrollton, Douglasville, and Newnan 338 AM EST Sun Nov 7 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM EST THIS MORNING... * WHAT...Temperatures dropping to the mid 30s will result in areas of frost. * WHERE...Much of west-central and northwest Georgia. * WHEN...Until 9 AM this morning. * IMPACTS...Frost could kill or damage sensitive outdoor vegetation if left unprotected. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Frost Advisory means that widespread frost is expected. Sensitive outdoor plants may be killed if left uncovered. && $$
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 6, 4:14 AM EDT | Freeze Watch | FFC | Fannin, Towns, Union | 11 hr |
| Nov 6, 6:21 AM EDT | Dense Fog Advisory | FFC | Bartow, Catoosa, Chattooga, Dade, Fannin, Floyd and 5 more | 4 hr |
| Nov 6, 2:46 PM EDT | Freeze Warning | FFC | Fannin, Towns, Union | 19 hr |
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.