Alert archive / Georgia / Freeze Warnings in 2012

Freeze Warning 3, NWS Atlanta, GA

March 9, 201216 counties in Georgia

NWS Atlanta, GA issued this freeze warning at Mar 9, 2012, 2:28 PM EST for 16 counties in Georgia. It took effect at Mar 10, 2012, 2:00 AM EST. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Mar 9, 2012, 2:28 PM EST (19:28 UTC)
In effect from
Mar 10, 2012, 2:00 AM EST
Expired
Mar 10, 2012, 8:00 AM EST
In force
6 hr
Issued by
NWS Atlanta, GA

Counties Catoosa County, GA, Chattooga County, GA, Dade County, GA, Dawson County, GA, Fannin County, GA, Floyd County, GA, Gilmer County, GA, Gordon County, GA, Lumpkin County, GA, Murray County, GA, Pickens County, GA, Towns County, GA, Union County, GA, Walker County, GA, White County, GA, Whitfield County, GA

The radar

The Northeast Alabama radar (KHTX), 136 km from the middle of the area, began a volume at 19:31 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, 7.5 hours before the alert went out and 145 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.

Skew-T log-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 12:00Z on 2012-03-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 12:00Z on 2012-03-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -135 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
541 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
-135 m²/s²
0-3 km storm-relative helicity
78 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

388 
WWUS72 KFFC 091928
NPWFFC

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
228 PM EST FRI MAR 9 2012

GAZ001>009-011>016-019-100330-
/O.UPG.KFFC.FZ.A.0002.120310T0700Z-120310T1300Z/
/O.NEW.KFFC.FZ.W.0003.120310T0700Z-120310T1300Z/
DADE-WALKER-CATOOSA-WHITFIELD-MURRAY-FANNIN-GILMER-UNION-TOWNS-
CHATTOOGA-GORDON-PICKENS-DAWSON-LUMPKIN-WHITE-FLOYD-
INCLUDING THE CITIES OF...CALHOUN...DAHLONEGA...CLEVELAND...ROME
228 PM EST FRI MAR 9 2012

...FREEZE WARNING IN EFFECT FROM 2 AM TO 8 AM EST SATURDAY...

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
FREEZE WARNING...WHICH IS IN EFFECT FROM 2 AM TO 8 AM EST
SATURDAY. THE FREEZE WATCH IS NO LONGER IN EFFECT.

* LOCATIONS...THE NORTH GEORGIA MOUNTAINS.

* TEMPERATURES...IN THE LOW 30S.

* TIMING...AFTER MIDNIGHT THROUGH SUNRISE SATURDAY MORNING.

* IMPACTS...FREEZING TEMPERATURES MAY THREATEN OR KILL TENDER 
  SPRING GROWTH. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS FREEZING TEMPERATURES ARE FORECAST TO
THREATEN OUTDOOR PLANTS. THOSE WITH AGRICULTURAL
INTERESTS IN THE WARNED AREA ARE ADVISED TO HARVEST OR PROTECT
TENDER VEGETATION.

&&

$$
3 follow-up statements
219 
WWUS72 KFFC 100347
NPWFFC

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1047 PM EST FRI MAR 9 2012

GAZ001>009-011>016-019-101200-
/O.CON.KFFC.FZ.W.0003.120310T0700Z-120310T1300Z/
DADE-WALKER-CATOOSA-WHITFIELD-MURRAY-FANNIN-GILMER-UNION-TOWNS-
CHATTOOGA-GORDON-PICKENS-DAWSON-LUMPKIN-WHITE-FLOYD-
INCLUDING THE CITIES OF...CALHOUN...DAHLONEGA...CLEVELAND...ROME
1047 PM EST FRI MAR 9 2012

...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 8 AM EST
SATURDAY...

* LOCATIONS...THE NORTH GEORGIA MOUNTAINS.

* TEMPERATURES...IN THE MID 30S.

* TIMING...AFTER MIDNIGHT THROUGH SUNRISE SATURDAY MORNING.

* IMPACTS...FREEZING TEMPERATURES MAY THREATEN OR KILL TENDER 
  SPRING GROWTH. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS FREEZING TEMPERATURES ARE FORECAST TO
THREATEN OUTDOOR PLANTS. THOSE WITH AGRICULTURAL INTERESTS IN THE
WARNED AREA ARE ADVISED TO HARVEST OR PROTECT TENDER VEGETATION.

&&

$$
885 
WWUS72 KFFC 100825
NPWFFC

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
325 AM EST SAT MAR 10 2012

GAZ001>009-011>016-019-101300-
/O.CON.KFFC.FZ.W.0003.000000T0000Z-120310T1300Z/
DADE-WALKER-CATOOSA-WHITFIELD-MURRAY-FANNIN-GILMER-UNION-TOWNS-
CHATTOOGA-GORDON-PICKENS-DAWSON-LUMPKIN-WHITE-FLOYD-
INCLUDING THE CITIES OF...CALHOUN...DAHLONEGA...CLEVELAND...ROME
325 AM EST SAT MAR 10 2012

...FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM EST THIS MORNING...

* LOCATIONS...THE NORTH GEORGIA MOUNTAINS.

* TEMPERATURES...IN THE LOWER 30S.

* TIMING...THROUGH 8 AM THIS MORNING.

* IMPACTS...FREEZING TEMPERATURES MAY THREATEN OR KILL TENDER 
  SPRING GROWTH. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS FREEZING TEMPERATURES ARE FORECAST TO
THREATEN OUTDOOR PLANTS. THOSE WITH AGRICULTURAL INTERESTS IN THE
WARNED AREA ARE ADVISED TO HARVEST OR PROTECT TENDER VEGETATION.

&&

$$
635 
WWUS72 KFFC 101305
NPWFFC

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
805 AM EST SAT MAR 10 2012

GAZ001>009-011>016-019-101415-
/O.EXP.KFFC.FZ.W.0003.000000T0000Z-120310T1300Z/
DADE-WALKER-CATOOSA-WHITFIELD-MURRAY-FANNIN-GILMER-UNION-TOWNS-
CHATTOOGA-GORDON-PICKENS-DAWSON-LUMPKIN-WHITE-FLOYD-
INCLUDING THE CITIES OF...CALHOUN...DAHLONEGA...CLEVELAND...ROME
805 AM EST SAT MAR 10 2012

...FREEZE WARNING HAS EXPIRED FOR PORTIONS OF NORTH GEORGIA...

WITH AMPLE SUNSHINE TEMPERATURES HAVE BEGUN RISING ABOVE FREEZING
ACROSS FAR NORTH GEORGIA AND THE FREEZE WARNING HAS BEEN ALLOWED TO
EXPIRE.

$$

The office that day

Everything else NWS Atlanta, GA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 8, 7:53 PM ESTSpecial Weather StatementFFCCatoosa, Dade, Walker37 min
Mar 8, 8:29 PM ESTSpecial Weather StatementFFCCatoosa, Dade, Walker, Whitfield46 min
Mar 9, 3:46 AM ESTFreeze WatchFFCCatoosa, Chattooga, Dade, Dawson, Fannin, Floyd and 10 more11 hr

Nearby

Freeze Warnings in Georgia, 2012Every freeze warning in 2012

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.