Alert archive / Georgia / Winter Storm Warnings in 2013

Winter Storm Warning 2, NWS Atlanta, GA

January 24, 201312 counties in Georgia

NWS Atlanta, GA issued this winter storm warning at Jan 24, 2013, 1:24 PM EST for 12 counties in Georgia. It took effect at Jan 25, 2013, 6:00 AM EST. It was in force for 12 hr. 22 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jan 24, 2013, 1:24 PM EST (18:24 UTC)
In effect from
Jan 25, 2013, 6:00 AM EST
Expired
Jan 25, 2013, 6:00 PM EST
In force
12 hr
Issued by
NWS Atlanta, GA

Counties Banks County, GA, Dawson County, GA, Fannin County, GA, Forsyth County, GA, Gilmer County, GA, Hall County, GA, Jackson County, GA, Lumpkin County, GA, Pickens County, GA, Towns County, GA, Union County, GA, White County, GA

The radar

The Atlanta radar (KFFC), 141 km from the middle of the area, began a volume at 18:26 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.

What was reported inside it

TimeReportWhereRemark
Jan 25, 6:30 AM ESTFREEZING RAIN 0Flowery Branch, GATHE PUBLIC REPORTED A GLAZE OF ICE ON ELEVATED SURFACES IN FLOWERY BRANCH.
Jan 25, 7:00 AM ESTFREEZING RAIN 0Dawsonville, GATHE DAWSON COUNTY EMERGENCY MANAGER REPORTED A GLAZE OF ICE ON SOME ROADS...SPECIFICALLY HIGHWAY 136 WEST.
Jan 25, 7:45 AM ESTFREEZING RAIN 0Gainesville, GATHE DOT REPORTED THAT A GLAZE OF ICE HAD ACCUMULATED ON ALL BRIDGES...OVERPASSES...AND SOME RAMPS ON I-985.
Jan 25, 8:00 AM ESTFREEZING RAIN 0.1Blue Ridge, GAEMERGENCY MANAGER REPORTED ICE ACCUMULATIONS OF 0.10 INCHES ON ROADS AND ELEVATED SURFACES COUNTYWIDE. THROUGH NOON THERE HAD BEEN 8 ACCIDENTS RELATED TO THE ICY ROADS...WITH NO INJURIES OR FATALITIES.
Jan 25, 8:00 AM ESTFREEZING RAIN 0.1Ellijay, GATHE EMERGENCY MANAGER REPORTED THAT APPROXIMATELY 0.10 INCHES OF ICE HAD ACCUMULATED ON ROADS AND ELEVATED SURFACES.
Jan 25, 8:00 AM ESTFREEZING RAIN 0.1Homer, GATHE EMERGENCY MANAGER IN BANKS COUNTY REPORTED FREEZING RAIN ACCUMULATING ACROSS THE COUNTY. AMOUNTS THROUGH 1230PM LOCAL TIME ARE AT 0.1 INCHES. THEY ARE BEGINNING TO HAVE ICING PROBLEMS ON THE BRIDGES.
Jan 25, 8:30 AM ESTFREEZING RAIN 0.1Blairsville, GATHE EMERGENCY MANAGER REPORTED AROUND 0.10 INCHES OF ICE...MAINLY ON ELEVATED SURFACES BUT SOME ROADS AS WELL.
Jan 25, 8:30 AM ESTFREEZING RAIN 0.1Gainesville, GATHE PUBLIC REPORTED AROUND A TENTH OF AN INCH OF ICE...MAINLY ON ELEVATED SURFACES.
Jan 25, 8:30 AM ESTFREEZING RAIN 0.1Hiawassee, GATHE EMERGENCY MANAGER REPORTED APPROXIMATELY 0.10 INCHES OF ICE HAD ACCUMULATED ON ROADS...GRASS...AND ELEVATED SURFACES THROUGH AROUND 1230 PM. THE ICY CONDITIONS HAD CONTRIBUTED TO NUMEROUS CAR ACCIDENTS AND NUMEROUS FALLS.
Jan 25, 8:30 AM ESTFREEZING RAIN 0.25Hiawassee, GATHE EMERGENCY MANAGER REPORTED APPROXIMATELY UP TO A QUARTER OF AN INCH OF ICE HAD ACCUMULATED ON ROADS...GRASS...AND ELEVATED SURFACES THROUGH AROUND 1230 PM. THE ICY CONDITIONS HAD CONTRIBUTED TO NUMEROUS CAR ACCIDENTS AND NUMEROUS FALLS.
Jan 25, 9:00 AM ESTFREEZING RAIN 0.1Dawsonville, GABROADCAST MEDIA RELAYED REPORTS OF A GLAZE TO 0.10 INCHES OF ICE DAWSONVILLE. TIME ESTIMATED.
Jan 25, 9:00 AM ESTFREEZING RAIN 0.25Cleveland, GABROADCAST MEDIA RELAYED REPORTS OF UP TO A QUARTER OF AN INCH OF ICE...MAINLY ON ELEVATED SURFACES INCLUDING CARS. TIME ESTIMATED.
Jan 25, 9:00 AM ESTFREEZING RAIN 0.25Sautee, GATHE PUBLIC REPORTED AROUND A QUARTER OF AN INCH OF ICE MAINLY ON ELEVATED SURFACES. TIME ESTIMATED.
Jan 25, 9:00 AM ESTFREEZING RAIN 0.3Mineral Bluff, GATHE PUBLIC REPORTED 3/8 INCH OF ICE ON ELEVATED SURFACES.
Jan 25, 10:00 AM ESTFREEZING RAIN 0Nicholson, GABROADCAST MEDIA RELAYED REPORTS OF A GLAZE OF ICE IN NICHOLSON...MAINLY ON ELEVATED SURFACES. TIME ESTIMATED.
Jan 25, 10:00 AM ESTFREEZING RAIN 0.25Clermont, GABROADCAST MEDIA RELAYED REPORTS OF UP TO A QUARTER OF AN INCH OF ICE...MAINLY IN THE NORTHERN PART OF THE COUNTY. THE HALL COUNTY EMERGENCY MANAGER ALSO RELAYED REPORTS OF MULTIPLE POWER OUTAGES ALSO MAINLY IN THE NORTHERN PART OF THE COUNTY. TIME ESTIMATED.
Jan 25, 10:40 AM ESTFREEZING RAIN 03 N Jefferson, GATHE COUNTY 911 CENTER REPORTED GLAZE OF ICE ALONG INTERSTATE 85.
Jan 25, 12:00 PM ESTFREEZING RAIN 0.16 N Cumming, GATHE FORSYTH COUNTY EMERGENCY MANAGER REPORTED AROUND ONE TENTH OF AN INCH OF ICE...MAINLY ON ELEVATED SURFACES. HIGHWAY 53 HAD A GLAZE ON THE ROAD AROUND NOON.
Jan 25, 12:20 PM ESTFREEZING RAIN 0Dahlonega, GATHERE HAS BEEN A LIGHT GLAZE REPORTED ON MOST BRIDGES AND RAISED ROAD BEDS.
Jan 25, 12:26 PM ESTFREEZING RAIN 0.1Ellijay, GAGILMER COUNTY EMERGENCY MANAGER REPORTS ICE ACCUMULATIONS UP TO A TENTH OF AN INCH ACROSS THE COUNTY ON VECHILES AND TREES.
Jan 25, 12:30 PM ESTFREEZING RAIN 0.25Jasper, GAIN AND AROUND JASPER THE GLAZE WAS LESS THAN ONE QUARTER BUT JUST OUTSIDE OF TOWN THERE WAS UP TO ONE QUARTER OF AN INCH OF ICE REPORTED. THERE WERE ALSO MULTIPLE ACCIDENTS REPORTED.
Jan 25, 12:35 PM ESTFREEZING RAIN 0Cleveland, GATHERE IS A GLAZE ON MOST AREA ROADS AND BRIDGES. MULTIPLE ACCIDENTS HAVE OCCURRED ON ROUTE 115 AND HELEN HIGHWAY. GDOT IS OUT APPLYING TREATMENT TO THE WORST AREAS. PRECIPITATION IS NOW A MIX OF ICE PELLETS AND FREEZING RAIN.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 6.4 hours before the alert went out and 138 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 2013-01-24Temperature 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 2013-01-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 213 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
677 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
213 m²/s²
0-3 km storm-relative helicity
268 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.

647 
WWUS42 KFFC 241824
WSWFFC

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
124 PM EST THU JAN 24 2013

...POTENTIAL FREEZING RAIN EVENT ON FRIDAY...

.A COLD FRONT WILL MOVE THROUGH THE SOUTHEAST ON FRIDAY BRINGING
PRECIPITATION TO THE AREA. COLD AIR AT THE SURFACE...ESPECIALLY
WEDGED ALONG THE NORTH GEORGIA MOUNTAINS...WILL RESULT IN
PRECIPITATION FALLING AS FREEZING RAIN AND SLEET.

GAZ006>009-013>016-022-023-250230-
/O.UPG.KFFC.WS.A.0002.130125T0600Z-130126T0000Z/
/O.NEW.KFFC.WS.W.0002.130125T1100Z-130125T2300Z/
FANNIN-GILMER-UNION-TOWNS-PICKENS-DAWSON-LUMPKIN-WHITE-FORSYTH-
HALL-
INCLUDING THE CITIES OF...DAHLONEGA...CLEVELAND...GAINESVILLE
124 PM EST THU JAN 24 2013

...WINTER STORM WARNING IN EFFECT FROM 6 AM TO 6 PM EST FRIDAY...

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
WINTER STORM WARNING FOR FREEZING RAIN...WHICH IS IN EFFECT FROM 6 AM
TO 6 PM EST FRIDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT.

* LOCATIONS...PORTIONS OF NORTH GEORGIA...GENERALLY NORTH AND EAST
  OF A LINE FROM ELLIJAY TO CUMMING TO GAINESVILLE.

* HAZARD TYPES...FREEZING RAIN...POSSIBLY MIXED WITH SLEET.

* ACCUMULATIONS...UP TO 1/4 INCH OF ICE...ESPECIALLY ON TREES AND
  POWER LINES. LITTLE TO NO SLEET ACCUMULATION.

* TIMING...FRIDAY MORNING THROUGH FRIDAY EVENING...WITH MOST OF THE
  PRECIPITATION FALLING DURING THE DAY ON FRIDAY.

* IMPACTS...ICE AND POSSIBLE SLEET WILL CAUSE ROADWAYS AND 
  SIDEWALKS TO BECOME SLIPPERY...MAKING TRAVEL DANGEROUS 
  ESPECIALLY ON BRIDGES AND OVERPASSES. ICE MAY ALSO ACCUMULATE 
  ON POWER LINES AND TREES...POSSIBLY LEADING TO POWER OUTAGES. 

* WINDS...EAST 5 TO 10 MPH WITH GUSTS UP TO 20 MPH

* TEMPERATURES...IN THE MID TO UPPER 20S IN THE MORNING WARMING TO
  THE LOWER 30S BY AFTERNOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR FREEZING RAIN MEANS WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING. MODERATE AMOUNTS OF ICE ARE
FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA
FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN
EMERGENCY.

&&

$$

GAZ001>005-011-012-019>021-250230-
/O.UPG.KFFC.WS.A.0002.130125T0600Z-130126T0000Z/
/O.NEW.KFFC.ZR.Y.0001.130125T1100Z-130125T1800Z/
DADE-WALKER-CATOOSA-WHITFIELD-MURRAY-CHATTOOGA-GORDON-FLOYD-
BARTOW-CHEROKEE-
INCLUDING THE CITIES OF...CALHOUN...ROME...CARTERSVILLE
124 PM EST THU JAN 24 2013

...FREEZING RAIN ADVISORY IN EFFECT FROM 6 AM TO 1 PM EST
FRIDAY...

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
FREEZING RAIN ADVISORY...WHICH IS IN EFFECT FROM 6 AM TO 1 PM EST
FRIDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT.

* LOCATIONS...PORTIONS OF NORTH GEORGIA...GENERALLY WEST AND SOUTH
  OF A LINE ELLIJAY TO CUMMING TO GAINESVILLE. PORTIONS OF CENTRAL
  GEORGIA...NORTH OF LINE FROM FRANKLIN TO GRIFFIN TO EATONTON TO
  CRAWFORDVILLE.

* HAZARD TYPES...FREEZING RAIN.

* TIMING...FRIDAY MORNING TO FRIDAY AFTERNOON.

* IMPACTS...ICE WILL CAUSE ROADWAYS AND SIDEWALKS TO BECOME
  SLIPPERY...MAKING TRAVEL DANGEROUS ESPECIALLY ON BRIDGES AND
  OVERPASSES.

* WINDS...EAST 5 TO 10 MPH WITH GUSTS UP TO 20 MPH.

* TEMPERATURES...IN THE UPPER 20S TO AROUND 30 IN THE MORNING
  WARMING TO AROUND 40 BY AFTERNOON.

* ACCUMULATIONS ONE TENTH OF AN INCH OR LESS OF ICE BEFORE THE
  FREEZING RAIN TURNS INTO ALL RAIN.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZING RAIN ADVISORY MEANS THAT PERIODS OF FREEZING RAIN OR
FREEZING DRIZZLE WILL CAUSE TRAVEL
DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS. SLOW DOWN AND USE
CAUTION WHILE DRIVING.

&&

$$

GAZ024-025-027-030>039-041>060-250230-
/O.NEW.KFFC.ZR.Y.0001.130125T1100Z-130125T1800Z/
BANKS-JACKSON-MADISON-POLK-PAULDING-COBB-NORTH FULTON-GWINNETT-
BARROW-CLARKE-OCONEE-OGLETHORPE-WILKES-HARALSON-CARROLL-DOUGLAS-
SOUTH FULTON-DEKALB-ROCKDALE-WALTON-NEWTON-MORGAN-GREENE-
TALIAFERRO-HEARD-COWETA-FAYETTE-CLAYTON-SPALDING-HENRY-BUTTS-
JASPER-PUTNAM-
INCLUDING THE CITIES OF...MARIETTA...ATLANTA...LAWRENCEVILLE...
ATHENS...CARROLLTON...DOUGLASVILLE...EAST POINT...DECATUR...
CONYERS...COVINGTON...NEWNAN...PEACHTREE CITY...GRIFFIN
124 PM EST THU JAN 24 2013

...FREEZING RAIN ADVISORY IN EFFECT FROM 6 AM TO 1 PM EST
FRIDAY...

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
FREEZING RAIN ADVISORY...WHICH IS IN EFFECT FROM 6 AM TO 1 PM EST
FRIDAY.

* LOCATIONS...PORTIONS OF NORTH GEORGIA...GENERALLY WEST AND SOUTH
  OF A LINE ELLIJAY TO CUMMING TO GAINESVILLE. PORTIONS OF CENTRAL
  GEORGIA...NORTH OF LINE FROM FRANKLIN TO GRIFFIN TO EATONTON TO
  CRAWFORDVILLE.

* HAZARD TYPES...FREEZING RAIN.

* ACCUMULATIONS....LESS THAN A TENTH OF AN INCH OF ICE...BEFORE
  THE FREEZING RAIN TURNS TO ALL RAIN AND MELTS.

* TIMING...6 AM TO 1PM EST FRIDAY.

* IMPACTS...ICE WILL CAUSE ROADWAYS AND SIDEWALKS TO BECOME
  SLIPPERY...MAKING TRAVEL DANGEROUS ESPECIALLY ON BRIDGES AND
  OVERPASSES.

* WINDS...EAST 5 TO 10 MPH WITH GUSTS UP TO 20 MPH.

* TEMPERATURES...AROUND 30 IN THE MORNING WARMING TO AROUND 40 BY
  AFTERNOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZING RAIN ADVISORY MEANS THAT PERIODS OF FREEZING RAIN OR
FREEZING DRIZZLE WILL CAUSE TRAVEL
DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS. SLOW DOWN AND USE
CAUTION WHILE DRIVING.

&&

$$
5 follow-up statements
518 
WWUS42 KFFC 242329
WSWFFC

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
629 PM EST THU JAN 24 2013

...POTENTIAL FREEZING RAIN EVENT ON FRIDAY...

.A COLD FRONT WILL MOVE THROUGH THE SOUTHEAST ON FRIDAY BRINGING
PRECIPITATION TO THE AREA. COLD AIR AT THE SURFACE...ESPECIALLY
WEDGED ALONG THE NORTH GEORGIA MOUNTAINS...WILL RESULT IN
PRECIPITATION FALLING AS FREEZING RAIN AND SLEET.

GAZ006>009-013>016-022-023-250900-
/O.CON.KFFC.WS.W.0002.130125T1100Z-130125T2300Z/
FANNIN-GILMER-UNION-TOWNS-PICKENS-DAWSON-LUMPKIN-WHITE-FORSYTH-
HALL-
INCLUDING THE CITIES OF...DAHLONEGA...CLEVELAND...GAINESVILLE
629 PM EST THU JAN 24 2013

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 AM TO 6 PM EST
FRIDAY...

* LOCATIONS...PORTIONS OF NORTH GEORGIA...GENERALLY NORTH AND 
  EAST OF A LINE FROM ELLIJAY TO CUMMING TO GAINESVILLE. 

* HAZARD TYPES...FREEZING RAIN...POSSIBLY MIXED WITH SLEET.

* ACCUMULATIONS...UP TO 1/4 INCH OF ICE...ESPECIALLY ON TREES 
  AND POWER LINES. LITTLE TO NO SLEET ACCUMULATION. 

* TIMING...FRIDAY MORNING THROUGH FRIDAY EVENING...WITH MOST OF 
  THE PRECIPITATION FALLING DURING THE DAY ON FRIDAY. 

* IMPACTS...ICE AND POSSIBLE SLEET WILL CAUSE ROADWAYS AND 
  SIDEWALKS TO BECOME SLIPPERY...MAKING TRAVEL DANGEROUS 
  ESPECIALLY ON BRIDGES AND OVERPASSES. ICE MAY ALSO ACCUMULATE 
  ON POWER LINES AND TREES...POSSIBLY LEADING TO POWER OUTAGES. 

* WINDS...EAST 5 TO 10 MPH WITH GUSTS UP TO 20 MPH

* TEMPERATURES...IN THE MID TO UPPER 20S IN THE MORNING WARMING 
  TO THE LOWER 30S BY AFTERNOON. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR FREEZING RAIN MEANS WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING. MODERATE AMOUNTS OF ICE ARE
FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...
AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

GAZ001>005-011-012-019>021-024-025-027-030>039-041>060-250900-
/O.CON.KFFC.ZR.Y.0001.130125T1100Z-130125T1800Z/
DADE-WALKER-CATOOSA-WHITFIELD-MURRAY-CHATTOOGA-GORDON-FLOYD-
BARTOW-CHEROKEE-BANKS-JACKSON-MADISON-POLK-PAULDING-COBB-
NORTH FULTON-GWINNETT-BARROW-CLARKE-OCONEE-OGLETHORPE-WILKES-
HARALSON-CARROLL-DOUGLAS-SOUTH FULTON-DEKALB-ROCKDALE-WALTON-
NEWTON-MORGAN-GREENE-TALIAFERRO-HEARD-COWETA-FAYETTE-CLAYTON-
SPALDING-HENRY-BUTTS-JASPER-PUTNAM-
INCLUDING THE CITIES OF...CALHOUN...ROME...CARTERSVILLE...
MARIETTA...ATLANTA...LAWRENCEVILLE...ATHENS...CARROLLTON...
DOUGLASVILLE...EAST POINT...DECATUR...CONYERS...COVINGTON...
NEWNAN...PEACHTREE CITY...GRIFFIN
629 PM EST THU JAN 24 2013

...FREEZING RAIN ADVISORY REMAINS IN EFFECT FROM 6 AM TO 1 PM EST
FRIDAY...

* LOCATIONS...PORTIONS OF NORTH GEORGIA...GENERALLY WEST AND 
  SOUTH OF A LINE ELLIJAY TO CUMMING TO GAINESVILLE. PORTIONS OF 
  CENTRAL GEORGIA...NORTH OF LINE FROM FRANKLIN TO GRIFFIN TO 
  EATONTON TO CRAWFORDVILLE. 

* HAZARD TYPES...FREEZING RAIN.

* ACCUMULATIONS....LESS THAN A TENTH OF AN INCH OF ICE...BEFORE 
  THE FREEZING RAIN TURNS TO ALL RAIN AND MELTS. 

* TIMING...6 AM TO 1PM EST FRIDAY.

* IMPACTS...ICE WILL CAUSE ROADWAYS AND SIDEWALKS TO BECOME 
  SLIPPERY...MAKING TRAVEL DANGEROUS ESPECIALLY ON BRIDGES AND 
  OVERPASSES. 

* WINDS...EAST 5 TO 10 MPH WITH GUSTS UP TO 20 MPH.

* TEMPERATURES...AROUND 30 IN THE MORNING WARMING TO AROUND 40 
  BY AFTERNOON. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZING RAIN ADVISORY MEANS THAT PERIODS OF FREEZING RAIN OR
FREEZING DRIZZLE WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS. SLOW DOWN AND USE CAUTION WHILE DRIVING.

&&

$$
634 
WWUS42 KFFC 250753
WSWFFC

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
253 AM EST FRI JAN 25 2013

...POTENTIAL FREEZING RAIN EVENT ON FRIDAY...

.A COLD FRONT HAS MOVED THROUGH MOST OF THE AREA WITH COLD AIR
CONTINUING TO FUNNEL IN. COLD AIR AT THE SURFACE...ESPECIALLY
WEDGED ALONG THE NORTH GEORGIA MOUNTAINS...WILL RESULT IN
PRECIPITATION FALLING AS FREEZING RAIN.

GAZ006>009-013>016-022-023-252300-
/O.CON.KFFC.WS.W.0002.130125T1100Z-130125T2300Z/
FANNIN-GILMER-UNION-TOWNS-PICKENS-DAWSON-LUMPKIN-WHITE-FORSYTH-
HALL-
INCLUDING THE CITIES OF...DAHLONEGA...CLEVELAND...GAINESVILLE
253 AM EST FRI JAN 25 2013

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 AM THIS MORNING
TO 6 PM EST THIS EVENING...

* LOCATIONS...PORTIONS OF NORTH GEORGIA...GENERALLY NORTH AND 
  EAST OF A LINE FROM ELLIJAY TO CUMMING TO GAINESVILLE. 

* HAZARD TYPES...FREEZING RAIN.

* ACCUMULATIONS...UP TO 1/4 INCH OF ICE...ESPECIALLY ON TREES AND
  POWER LINES.

* TIMING...MID MORNING THROUGH THIS EVENING. 

* IMPACTS...ICE WILL CAUSE ROADWAYS AND SIDEWALKS TO BECOME
  SLIPPERY...MAKING TRAVEL DANGEROUS ESPECIALLY ON BRIDGES AND
  OVERPASSES. ICE MAY ALSO ACCUMULATE ON POWER LINES AND
  TREES...POSSIBLY LEADING TO POWER OUTAGES.

* WINDS...EAST 10 MPH WITH GUSTS UP TO 20 MPH

* TEMPERATURES...IN THE MID TO UPPER 20S IN THE MORNING WARMING 
  TO THE LOWER 30S BY AFTERNOON. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR FREEZING RAIN MEANS WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING. MODERATE AMOUNTS OF ICE ARE
FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...
AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

GAZ001>005-011-012-019>021-024-025-027-030>039-041>060-251800-
/O.CON.KFFC.ZR.Y.0001.130125T1100Z-130125T1800Z/
DADE-WALKER-CATOOSA-WHITFIELD-MURRAY-CHATTOOGA-GORDON-FLOYD-
BARTOW-CHEROKEE-BANKS-JACKSON-MADISON-POLK-PAULDING-COBB-
NORTH FULTON-GWINNETT-BARROW-CLARKE-OCONEE-OGLETHORPE-WILKES-
HARALSON-CARROLL-DOUGLAS-SOUTH FULTON-DEKALB-ROCKDALE-WALTON-
NEWTON-MORGAN-GREENE-TALIAFERRO-HEARD-COWETA-FAYETTE-CLAYTON-
SPALDING-HENRY-BUTTS-JASPER-PUTNAM-
INCLUDING THE CITIES OF...CALHOUN...ROME...CARTERSVILLE...
MARIETTA...ATLANTA...LAWRENCEVILLE...ATHENS...CARROLLTON...
DOUGLASVILLE...EAST POINT...DECATUR...CONYERS...COVINGTON...
NEWNAN...PEACHTREE CITY...GRIFFIN
253 AM EST FRI JAN 25 2013

...FREEZING RAIN ADVISORY REMAINS IN EFFECT FROM 6 AM THIS
MORNING TO 1 PM EST THIS AFTERNOON...

* LOCATIONS...PORTIONS OF NORTH GEORGIA...GENERALLY WEST AND 
  SOUTH OF A LINE ELLIJAY TO CUMMING TO GAINESVILLE. PORTIONS OF 
  CENTRAL GEORGIA...NORTH OF LINE FROM FRANKLIN TO GRIFFIN TO 
  EATONTON TO CRAWFORDVILLE. 

* HAZARD TYPES... WILL BE MOSTLY RAIN BUT POCKETS OF FREEZING RAIN
  AS WELL.

* ACCUMULATIONS....LESS THAN A TENTH OF AN INCH OF ICE...MAINLY
  CONFINED TO ELEVATED SURFACES AND TO NORTHERN SECTIONS OF THE
  ADVISORY AREA.

* TIMING...9 AM TO 1PM EST FRIDAY.

* IMPACTS...ICE WILL CAUSE ROADWAYS AND SIDEWALKS TO BECOME 
  SLIPPERY...MAKING TRAVEL DANGEROUS ESPECIALLY ON BRIDGES AND 
  OVERPASSES. 

* WINDS...EAST 10 MPH WITH GUSTS UP TO 20 MPH.

* TEMPERATURES...AROUND 30 IN THE MORNING WARMING TO AROUND 40 
  BY AFTERNOON. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZING RAIN ADVISORY MEANS THAT PERIODS OF FREEZING RAIN OR
FREEZING DRIZZLE WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS. SLOW DOWN AND USE CAUTION WHILE DRIVING.

&&

$$
665 
WWUS42 KFFC 251758
WSWFFC

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1258 PM EST FRI JAN 25 2013

...POTENTIAL FREEZING RAIN EVENT ON FRIDAY...

.A COLD FRONT HAS MOVED THROUGH MOST OF THE AREA WITH COLD AIR
CONTINUING TO FUNNEL IN. COLD AIR AT THE SURFACE...ESPECIALLY
WEDGED ALONG THE NORTH GEORGIA MOUNTAINS...WILL RESULT IN
PRECIPITATION FALLING AS FREEZING RAIN.

GAZ001>005-011-012-019-020-030>032-041>044-046-048>060-251900-
/O.CAN.KFFC.ZR.Y.0001.000000T0000Z-130125T1800Z/
DADE-WALKER-CATOOSA-WHITFIELD-MURRAY-CHATTOOGA-GORDON-FLOYD-
BARTOW-POLK-PAULDING-COBB-HARALSON-CARROLL-DOUGLAS-SOUTH FULTON-
ROCKDALE-NEWTON-MORGAN-GREENE-TALIAFERRO-HEARD-COWETA-FAYETTE-
CLAYTON-SPALDING-HENRY-BUTTS-JASPER-PUTNAM-
INCLUDING THE CITIES OF...CALHOUN...ROME...CARTERSVILLE...
MARIETTA...CARROLLTON...DOUGLASVILLE...EAST POINT...CONYERS...
COVINGTON...NEWNAN...PEACHTREE CITY...GRIFFIN
1258 PM EST FRI JAN 25 2013

...FREEZING RAIN ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS CANCELLED THE
FREEZING RAIN ADVISORY.

TEMPERATURES SHOULD CONTINUE TO WARM ACROSS THIS AREA DURING THE
AFTERNOON. 

$$

GAZ024-025-252300-
/O.UPG.KFFC.ZR.Y.0001.000000T0000Z-130125T1800Z/
/O.EXA.KFFC.WS.W.0002.000000T0000Z-130125T2300Z/
BANKS-JACKSON-
1258 PM EST FRI JAN 25 2013

...WINTER STORM WARNING IN EFFECT UNTIL 6 PM EST THIS EVENING...

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
WINTER STORM WARNING FOR FREEZING RAIN...WHICH IS IN EFFECT UNTIL
6 PM EST THIS EVENING. THE FREEZING RAIN ADVISORY IS NO LONGER IN
EFFECT.

* LOCATIONS...PORTIONS OF NORTH GEORGIA...GENERALLY EAST AND NORTH
  OF A LINE FROM ELLIJAY TO CUMMING TO JEFFERSON. 

* HAZARD TYPES... WILL BE MOSTLY FREEZING RAIN. 

* ACCUMULATIONS....UP TO 1/4 INCH OF ICE...ESPECIALLY ON TREES AND
  POWER LINES.


* TIMING...THIS AFTERNOON INTO EARLY EVENING. 

* IMPACTS...ICE WILL CAUSE ROADWAYS AND SIDEWALKS TO BECOME 
  SLIPPERY...MAKING TRAVEL DANGEROUS ESPECIALLY ON BRIDGES AND 
  OVERPASSES. 

* WINDS...EAST 10 MPH WITH GUSTS UP TO 20 MPH.

* TEMPERATURES...IN THE UPPER 20S TO LOW 30S.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR FREEZING RAIN MEANS WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING. MODERATE AMOUNTS OF ICE ARE
FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...
AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.



&&

$$

GAZ006>009-013>016-022-023-252300-
/O.CON.KFFC.WS.W.0002.000000T0000Z-130125T2300Z/
FANNIN-GILMER-UNION-TOWNS-PICKENS-DAWSON-LUMPKIN-WHITE-FORSYTH-
HALL-
INCLUDING THE CITIES OF...DAHLONEGA...CLEVELAND...GAINESVILLE
1258 PM EST FRI JAN 25 2013

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM EST THIS
EVENING...

* LOCATIONS...PORTIONS OF NORTH GEORGIA...GENERALLY NORTH AND 
  EAST OF A LINE FROM ELLIJAY TO CUMMING TO GAINESVILLE. 

* HAZARD TYPES...FREEZING RAIN.

* ACCUMULATIONS....UP TO 1/4 INCH OF ICE...ESPECIALLY ON TREES AND
  POWER LINES.

* TIMING...THIS AFTERNOON INTO EARLY THIS EVENING.

* IMPACTS...ICE WILL CAUSE ROADWAYS AND SIDEWALKS TO BECOME 
  SLIPPERY...MAKING TRAVEL DANGEROUS ESPECIALLY ON BRIDGES AND 
  OVERPASSES. ICE MAY ALSO ACCUMULATE ON POWER LINES AND TREES...
   POSSIBLY LEADING TO POWER OUTAGES. 

* WINDS...EAST 10 MPH WITH GUSTS UP TO 20 MPH

* TEMPERATURES...IN THE UPPER 20S TO LOWER 30S.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR FREEZING RAIN MEANS WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING. MODERATE AMOUNTS OF ICE ARE
FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...
AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

GAZ021-027-033>039-045-047-252300-
/O.EXT.KFFC.ZR.Y.0001.000000T0000Z-130125T2300Z/
CHEROKEE-MADISON-NORTH FULTON-GWINNETT-BARROW-CLARKE-OCONEE-
OGLETHORPE-WILKES-DEKALB-WALTON-
INCLUDING THE CITIES OF...ATLANTA...LAWRENCEVILLE...ATHENS...
DECATUR
1258 PM EST FRI JAN 25 2013

...FREEZING RAIN ADVISORY NOW IN EFFECT UNTIL 6 PM EST THIS
EVENING...

* LOCATIONS...PORTIONS OF NORTH GEORGIA...GENERALLY VICINITY OF A
  LINE FROM CANTON TO LAWRENCEVILLE TO ATHENS. 

* HAZARD TYPES... WILL BE MOSTLY RAIN BUT POCKETS OF FREEZING 
  RAIN AS WELL. 

* ACCUMULATIONS....LESS THAN A TENTH OF AN INCH OF ICE...MAINLY
  CONFINED TO ELEVATED SURFACES.

* TIMING...THIS AFTERNOON INTO EARLY EVENING. 

* IMPACTS...ICE WILL CAUSE ROADWAYS AND SIDEWALKS TO BECOME 
  SLIPPERY...MAKING TRAVEL DANGEROUS ESPECIALLY ON BRIDGES AND 
  OVERPASSES. 

* WINDS...EAST TO SOUTHEAST 10 MPH. 

* TEMPERATURES...IN THE UPPER 30S.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZING RAIN ADVISORY MEANS THAT PERIODS OF FREEZING RAIN OR
FREEZING DRIZZLE WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS. SLOW DOWN AND USE CAUTION WHILE DRIVING.

&&

$$
124 
WWUS42 KFFC 251812
WSWFFC

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
112 PM EST FRI JAN 25 2013

...FREEZING RAIN AND SLEET EVENT TO CONTINUE THROUGH EARLY EVENING...

.A COLD FRONT HAS MOVED THROUGH MOST OF THE AREA WITH COLD AIR
CONTINUING TO FUNNEL IN. COLD AIR AT THE SURFACE...ESPECIALLY
WEDGED ALONG THE NORTH GEORGIA MOUNTAINS...WILL RESULT IN
PRECIPITATION FALLING AS FREEZING RAIN AND POSSIBLY MIXED WITH SLEET.

GAZ006>009-013>016-022>025-252300-
/O.CON.KFFC.WS.W.0002.000000T0000Z-130125T2300Z/
FANNIN-GILMER-UNION-TOWNS-PICKENS-DAWSON-LUMPKIN-WHITE-FORSYTH-
HALL-BANKS-JACKSON-
INCLUDING THE CITIES OF...DAHLONEGA...CLEVELAND...GAINESVILLE
112 PM EST FRI JAN 25 2013

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM EST THIS
EVENING...

* LOCATIONS...PORTIONS OF NORTH GEORGIA...GENERALLY NORTH AND 
  EAST OF A LINE FROM ELLIJAY TO CUMMING TO JEFFERSON. 

* HAZARD TYPES...FREEZING RAIN MIXED WITH SLEET.

* ACCUMULATIONS....UP TO 1/4 INCH OF ICE...ESPECIALLY ON TREES AND
  POWER LINES.

* TIMING...THIS AFTERNOON INTO EARLY THIS EVENING.

* IMPACTS...ICE WILL CAUSE ROADWAYS AND SIDEWALKS TO BECOME 
  SLIPPERY...MAKING TRAVEL DANGEROUS ESPECIALLY ON BRIDGES AND 
  OVERPASSES. ICE MAY ALSO ACCUMULATE ON POWER LINES AND TREES...
   POSSIBLY LEADING TO POWER OUTAGES. 

* WINDS...EAST AT 10 MPH WITH GUSTS UP TO 20 MPH.

* TEMPERATURES...IN THE UPPER 20S TO LOW 30S.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR FREEZING RAIN MEANS WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING. MODERATE AMOUNTS OF ICE ARE
FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...
AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

GAZ021-027-033>039-045-047-252300-
/O.CON.KFFC.ZR.Y.0001.000000T0000Z-130125T2300Z/
CHEROKEE-MADISON-NORTH FULTON-GWINNETT-BARROW-CLARKE-OCONEE-
OGLETHORPE-WILKES-DEKALB-WALTON-
INCLUDING THE CITIES OF...ATLANTA...LAWRENCEVILLE...ATHENS...
DECATUR
112 PM EST FRI JAN 25 2013

...FREEZING RAIN ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST THIS
EVENING...

* LOCATIONS...PORTIONS OF NORTH GEORGIA...GENERALLY VICINITY OF 
  A LINE FROM CANTON TO LAWRENCEVILLE TO ATHENS. 

* HAZARD TYPES... WILL BE MOSTLY RAIN BUT POCKETS OF FREEZING 
  RAIN AS WELL. 

* ACCUMULATIONS....LESS THAN A TENTH OF AN INCH OF ICE...MAINLY
  CONFINED TO ELEVATED SURFACES.

* TIMING...THIS AFTERNOON INTO EARLY EVENING.

* IMPACTS...ICE WILL CAUSE ROADWAYS AND SIDEWALKS TO BECOME 
  SLIPPERY...MAKING TRAVEL DANGEROUS ESPECIALLY ON BRIDGES AND 
  OVERPASSES. 

* WINDS...EAST TO SOUTHEAST NEAR 10 MPH.

* TEMPERATURES...IN THE LOW TO MID 30S.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZING RAIN ADVISORY MEANS THAT PERIODS OF FREEZING RAIN OR
FREEZING DRIZZLE WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS. SLOW DOWN AND USE CAUTION WHILE DRIVING.

&&

$$
977 
WWUS42 KFFC 252250
WSWFFC

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
550 PM EST FRI JAN 25 2013

GAZ006>009-013>016-022>025-260000-
/O.EXP.KFFC.WS.W.0002.000000T0000Z-130125T2300Z/
FANNIN-GILMER-UNION-TOWNS-PICKENS-DAWSON-LUMPKIN-WHITE-FORSYTH-
HALL-BANKS-JACKSON-
INCLUDING THE CITIES OF...DAHLONEGA...CLEVELAND...GAINESVILLE
550 PM EST FRI JAN 25 2013

...WINTER STORM WARNING WILL EXPIRE AT 6 PM EST THIS EVENING...

MOST OF THE PRECIPITATION HAS MOVED OUT OF THE AREA THIS
EVENING...BUT SOME PATCHES OF DRIZZLE OR FREEZING DRIZZLE CAN BE
EXPECTED FOR THE NEXT COUPLE OF HOURS. TEMPERATURES WILL HOVER
NEAR OR JUST BELOW FREEZING OVERNIGHT...LEADING TO PATCHY BLACK
ICE ON ROADS. MOTORISTS SHOULD USE EXTRA CAUTION.

$$

GAZ021-027-033>039-045-047-260000-
/O.EXP.KFFC.ZR.Y.0001.000000T0000Z-130125T2300Z/
CHEROKEE-MADISON-NORTH FULTON-GWINNETT-BARROW-CLARKE-OCONEE-
OGLETHORPE-WILKES-DEKALB-WALTON-
INCLUDING THE CITIES OF...ATLANTA...LAWRENCEVILLE...ATHENS...
DECATUR
550 PM EST FRI JAN 25 2013

...FREEZING RAIN ADVISORY WILL EXPIRE AT 6 PM EST THIS EVENING...

MOST OF THE PRECIPITATION HAS MOVED OUT OF THE AREA THIS
EVENING...AND TEMPERATURES HAVE RISEN TO ABOVE FREEZING ACROSS
MOST OF THE ADVISORY AREA.

$$

What forecasters said that day

The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Atlanta, GA wrote its last area forecast discussion before this winter storm warning went out at Jan 24, 12:52 PM EST, 32 minutes earlier.

Area forecast discussion, Jan 24, 12:52 PM EST, 32 minutes before
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1252 PM EST THU JAN 24 2013

.PREV DISCUSSION... /ISSUED 1153 AM EST THU JAN 24 2013/

UPDATE...
SMALL TWEAKS WERE MADE TO THE TEMPERATURES TO KEEP THEM ON TRACK.
OTHERWISE HAVE FOCUSED ON WINTER WEATHER ACROSS NORTHERN CWA. WILL
COVER MORE OF THIS IN UPCOMING PACKAGE.

ARG

PREV DISCUSSION... /ISSUED 654 AM EST THU JAN 24 2013/

SHORT TERM /TODAY THROUGH FRIDAY NIGHT/...
COMPLICATED FORECAST FOR SHORT TERM AS MAIN CONCERN IS FROZEN P-TYPE
POTENTIAL AS CLASSICAL CAD WEDGE INTERACTS WITH OVERRUNNING MOISTURE
FROM THE WEST-SOUTHWEST. MODELS ARE IN DECENT AGREEMENT WITH 1043-MB
SFC HIGH NEAR THE UPPER MIDWEST AND TIMING/STRENGTH OF SYSTEM AS IT
PUSHES SOUTHEASTWARD INTO THE MID ATLANTIC REGION BY THIS EVENING.
INITIAL COLD FRONT ON THE WESTERN SIDE OF THE APPALACHIANS IS
IMPINGING UPON THE NORTHERN PORTION OF THE FORECAST AREA THIS
MORNING...AND WAS A BIT SLOWER THAN PREVIOUSLY THOUGHT. HAS BEEN A
DRY PASSAGE SO FAR AND HAVE ADJUSTED POPS MOSTLY TO VERY LIMITED
SLIGHT CHANCE OF SHOWERS. NOT SURPRISED IF CONTINUES TO BE
COMPLETELY DRY AND PRIMARILY SERVE TO BRING IN SOME ENHANCED WINDS
WITH DRY AIR ADVECTION.

AS HIGH QUICKLY PUSHES SOUTHEAST...THE CAD WEDGE WILL AFFECT THE
AREA FROM THE NORTHEAST ALONG THE EASTERN SLOPES OF THE
APPALACHIANS. NAM AND GFS WERE BOTH ADVECTING IN DECENTLY LOWER
DEWPOINTS /MAINLY IN TEENS/ WITH THIS WEDGE. COLD AIR ADVECTION
SHOULD BE QUITE STRONG AT FIRST AND THE PROGGED MOISTURE FIELD LOOKS
TO QUICKLY OVERRUN INITIALLY AS A CLOUD SHIELD AFTER ABOUT 09Z FROM
THE WEST. THIS WILL HELP INSULATE THE WEDGE AND SERVE TO REINFORCE
THE LOW LEVEL INVERSION. MUCH OF THE AREA LOOKS TO GET TO THE UPPER
20S TO LOW 30S. GUIDANCE HAS TRENDED TO A BIT LATER WITH THE ONSET
OF PRECIP AND NOW LOOKS AS THOUGH WILL START AS LIGHT FREEZING
DRIZZLE FROM THE NORTHWEST AND NOT GET TO THE ATLANTA AREA UNTIL
AFTER 15Z. THIS WOULD ALLOW SURFACE TEMPS TO WARM UP SLIGHTLY FROM
THE PROGGED OVERNIGHT MINS...HOWEVER WITH THE AFOREMENTIONED LOW
DEWPOINTS...ANY DROPLETS WILL LIKELY RESULT IN EVAP COOLING AND SO
THE FIRST SEVERAL HOURS DURING PRECIP ONSET MAY LOWER THE SFC TEMPS
DOWN A DEGREE OR TWO BUT MAY NOT BE ENOUGH MOISTURE SOUTH OF ABOUT
ROME TO GAINESVILLE TO HAVE MUCH OF A DIABATIC IMPACT.

FOR P-TYPE AND AMOUNT...ANALYSES OF PROGGED LOW LEVEL PARTIAL
THICKNESSES AND MODEL SOUNDINGS SUGGESTED A COMBINATION OF FZRA AND
RAIN/DRIZZLE MAINLY ACROSS NORTH GEORGIA WHERE ISENTROPIC ANALYSES
ON 295K THETA LEVEL SUPPORTED THE BEST LIFT. THE FAR NORTHEAST
SHOULD HAVE FZRA NEARLY THROUGHOUT FRIDAY AND COULD HAVE TOTAL ICE
ACCUMULATIONS OF 0.25 INCHES...WHILE 0.10-0.25 INCHES MAY BE
POSSIBLE ACROSS THE REMAINDER OF FAR NORTH GEORGIA. SOUTH OF A ROME
TO GAINESVILLE LINE LOOKS TO GET LESS THAN A TENTH OF AN INCH... AND
PERHAPS ONLY A GLAZE OF ICE NEAR THE ATLANTA AREA. AREAS WITH ONLY A
GLAZE TO LESS THAN 0.10 INCHES WILL LIKELY HAVE ANY FREEZING DRIZZLE
DURING THE FIRST SEVERAL HOURS OF PRECIP...MAINLY 15-18Z NEAR
ATLANTA...AND SLIGHTLY LATER EASTWARD AS THIS GETS INTO DEEPER
PORTIONS OF THE COLD DOME. THE AMOUNTS HAVE BEEN TWEAKED A BIT LOWER
THAN BEFOREHAND PER RECENT TRENDS IN GUIDANCE...AND 06 NAM WAS
CONSIDERABLY DRIER THAN OTHER SOLUTIONS. ALL CONSIDERED WITH RECENT
TRENDS AND AFTER DOING TOP DOWN PROCEDURE/ICE ACCUMULATION TOOL FOR
WEATHER GRIDS...HAVE DECIDED TO NOT UPGRADE ANY AREA IN THE WWA
PRODUCTS AND HAVE MAINTAINED THE CURRENT WINTER STORM WATCH IN THE
NORTH.

CAD EROSION LOOKS TO BE MAINLY WITH THE COLD FRONT ALOFT FRIDAY
NIGHT AS THE MODELS ARE LOOKING TO SCOUR OUT THE COLD DOME TOO
QUICKLY AND CLOUD SHIELD AND SOLAR SHELTERING SHOULD ALLOW FOR
RESIDUAL COLD POOL BEFORE THE FROPA FROM THE NORTH. HAVE MADE MANY
ADJUSTMENTS TO TEMP AND DEWPT TRENDS TO ACCOUNT FOR THIS.

BAKER

LONG TERM /SATURDAY THROUGH WEDNESDAY/...
FOR SATURDAY AND SUNDAY...COLD FRONT WILL BE PUSHING THROUGH
SOUTH GA INTO FL EARLY SATURDAY MORNING WITH COOLER AND DRIER
AIRMASS WORKING INTO THE STATE DURING THE DAY. TEMPERATURES LOOK
TO BE SLIGHTLY BELOW NORMAL ON SATURDAY BEFORE A WARMING TREND
STARTS ON SUNDAY. RIDGING ALOFT WORKS INTO THE EASTERN HALF OF THE
US ON SUNDAY...HOWEVER..AT THE SURFACE ANOTHER ARCTIC SURFACE
RIDGE WILL WEDGE INTO THE STATE FROM THE NORTHEAST ON SUNDAY AND
KEEP TEMPS AT BAY...ALBEIT NOT AS COLD AS THE TEMPS ON FRIDAY.
PRECIP IS NOT ANTICIPATED WITH THIS WEDGE BUT CLOUDS WILL START TO
WORK IN LATE ON SUNDAY INTO MONDAY AS MEAN LAYER RH VALUES
INCREASE AND WEAK ISENTROPIC PROCESSES SETUP.

MONDAY THROUGH TUESDAY...
BIG WARMUP UNDERWAY FOR THE FIRST PART OF THE WORKWEEK AS A DEEP
TROUGH DIGS OVER THE WESTERN US AND UPPER RIDGING AND SOUTH TO
SOUTHWESTERLY FLOW SETS UP ACROSS THE SOUTHEASTERN STATES.
TEMPERATURES BY TUESDAY MAY BE PUSHING 70 IN MANY AREAS...ESPECIALLY
SOUTH OF INTERSTATE 20.  SOUTH WINDS START PICKING UP TUESDAY AS THE
PRESSURE GRADIENT TIGHTENS IN RESPONSE TO LOW PRESSURE DEVELOPMENT
OVER TEXAS AND A STRONG SURFACE RIDGE OVER THE ATLANTIC.
OTHERWISE...VERY PLEASANT AND UNSEASONABLY WARM WEATHER EXPECTED
EARLY NEXT WEEK.

WEDNESDAY...
GFS AND ECMWF START TO DIVERGE BY WEDNESDAY WITH REGARD TO THE
TIMING OF THE NEXT SYSTEM.  THE ECMWF IS ALMOST 24 HOURS FASTER THAN
THE GFS WITH A STRONG COLD FRONT MOVING THROUGH THE REGION.  THIS IS
LARGELY DUE ITS HANDLING OF THE PROGRESSION OF THE OVERALL TROUGH AS
MORE OF A PHASED TROUGH VERSUS THE GFS WHICH HAS A FASTER
NORTHERN COMPONENT MOVING THROUGH THE GREAT LAKES AND A DETACHED
SOUTHERN COMPONENT.  IN EITHER CASE...BOTH MODELS AGREE THAT WE
BEGIN TO SEE SOME INSTABILITY RETURN TO THE AREA AHEAD OF THE FRONT
RESULTING IN A CHANCE FOR THUNDERSTORMS WITH THE FRONTAL PASSAGE.
FOR NOW...HAVE OPTED TO USE THE SLOWER GFS SOLUTION IN THE GRIDS AND
INTRODUCED THUNDER ON WEDNESDAY.

STELLMAN

.AVIATION...
18Z UPDATE...
MAIN CONCERN FOR TAF SITES IS THE FREEZING PRECIP TOMORROW AM...IN
NORTH GA. MOST SITES...WITH THE EXCEPTION OF AHN...COULD SEE A 3
TO 4 HOUR WINDOW OF -FZRA. DO NOT EXPECT MUCH OF ANY ACCUMULATIONS
AT THE TAF SITES. EXPECT TEMPERATURES TO WARM TO ABOVE FREEZING IN
THE AFTERNOON. AHN MAY SEE LONGER DURATION FOR FREEZING RAIN. THIS
IS ALL DEPENDENT ON HOW LONG THE WEDGE STAYS IN PLACE. OTHERWISE
CEILINGS AND VSBYS SHOULD BE VFR TO MVFR.

//ATL CONFIDENCE...18Z UPDATE...
HIGH CONFIDENCE ON ALL ELEMENTS...MEDIUM CONFIDENCE ON FZRA.

ARG

&&

.PRELIMINARY POINT TEMPS/POPS...
ATHENS          53  28  35  31 /  10  10  70  60
ATLANTA         50  29  39  33 /  10  10  60  60
BLAIRSVILLE     42  23  33  25 /  10  10  80  70
CARTERSVILLE    46  30  38  31 /  20  10  70  70
COLUMBUS        62  36  57  43 /  10   5  20  30
GAINESVILLE     49  26  34  29 /  10  10  70  70
MACON           61  31  52  41 /   5   5  20  20
ROME            45  28  39  30 /  20  20  70  60
PEACHTREE CITY  52  31  44  35 /  10  10  50  50
VIDALIA         64  30  57  48 /  10   5  20  20

&&

.FFC WATCHES/WARNINGS/ADVISORIES...
WINTER STORM WATCH FROM LATE TONIGHT THROUGH FRIDAY EVENING FOR
THE FOLLOWING ZONES: BARTOW...CATOOSA...CHATTOOGA...CHEROKEE...
DADE...DAWSON...FANNIN...FLOYD...FORSYTH...GILMER...GORDON...
HALL...LUMPKIN...MURRAY...PICKENS...TOWNS...UNION...WALKER...
WHITE...WHITFIELD.

&&

SHORT TERM...ARG
LONG TERM....30
AVIATION...ARG
Hazardous weather outlook, Jan 24, 11:51 AM EST, 1 hour 33 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1151 AM EST THU JAN 24 2013

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-251700-
BALDWIN-BANKS-BARROW-BARTOW-BIBB-BLECKLEY-BUTTS-CARROLL-CATOOSA-
CHATTAHOOCHEE-CHATTOOGA-CHEROKEE-CLARKE-CLAYTON-COBB-COWETA-
CRAWFORD-CRISP-DADE-DAWSON-DEKALB-DODGE-DOOLY-DOUGLAS-EMANUEL-
FANNIN-FAYETTE-FLOYD-FORSYTH-GILMER-GLASCOCK-GORDON-GREENE-
GWINNETT-HALL-HANCOCK-HARALSON-HARRIS-HEARD-HENRY-HOUSTON-JACKSON-
JASPER-JEFFERSON-JOHNSON-JONES-LAMAR-LAURENS-LUMPKIN-MACON-
MADISON-MARION-MERIWETHER-MONROE-MONTGOMERY-MORGAN-MURRAY-
MUSCOGEE-NEWTON-NORTH FULTON-OCONEE-OGLETHORPE-PAULDING-PEACH-
PICKENS-PIKE-POLK-PULASKI-PUTNAM-ROCKDALE-SCHLEY-SOUTH FULTON-
SPALDING-STEWART-SUMTER-TALBOT-TALIAFERRO-TAYLOR-TELFAIR-TOOMBS-
TOWNS-TREUTLEN-TROUP-TWIGGS-UNION-UPSON-WALKER-WALTON-WARREN-
WASHINGTON-WEBSTER-WHEELER-WHITE-WHITFIELD-WILCOX-WILKES-
WILKINSON-
1151 AM EST THU JAN 24 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH AND CENTRAL GEORGIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT...
POTENTIAL FOR FREEZING RAIN EVENT LATE TONIGHT ACROSS NORTH
GEORGIA.

WEATHER HAZARDS EXPECTED...
LIGHT FREEZING RAIN WILL BE POSSIBLE OVERNIGHT INTO EARLY FRIDAY
MORNING ACROSS NORTHWEST GEORGIA BEFORE SPREADING EASTWARD ACROSS
MOST OF NORTH GEORGIA DURING THE DAY FRIDAY. REFER TO THE LATEST
WINTER WEATHER ADVISORY.

DISCUSSION...
AN ARCTIC AIRMASS WILL BE MOVING INTO THE EASTERN HALF OF THE
UNITED STATES TODAY SETTING UP A COLD AIR WEDGE ACROSS NORTH GEORGIA.
AT THE SAME TIME MOISTURE FROM THE WEST AND SOUTHWEST IS EXPECTED
TO RISE UP AND OVER THE COLD AIR AT THE SURFACE. THE COMBINATION
OF THESE INGREDIENTS WILL SET THE STAGE FOR POSSIBLE FREEZING RAIN
AND SLEET LATE TONIGHT AND FRIDAY. AREAS NORTH OF A ROME TO
GAINESVILLE LINE WILL HAVE THE GREATEST POTENTIAL FOR ICE
ACCUMULATION FRIDAY. AREAS ALONG AND NORTH OF INTERSTATE 20 AND 85
HAVE THE POTENTIAL TO SEE SOME GLAZING WITH THE ONSET OF THE
PRECIPITATION BEFORE THE FREEZING RAIN CHANGES OVER TO RAIN DURING
THE DAY ON FRIDAY. STAY TUNED TO THE FORECAST FOR FRIDAY AS IT IS
HIGHLY DEPENDENT ON THE TIMING OF BOTH THE COLD AIR AND THE
MOISTURE AND MAY CHANGE AS NEW INFORMATION IS RECEIVED.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY...
A GRADUAL WARMUP WILL TAKE SHAPE THROUGH THE MIDDLE PART OF NEXT
WEEK AHEAD OF THE NEXT COLD FRONT. COMPUTER MODELS DIFFER ON THE
TIMING OF THE FRONT BUT DO AGREE THAT ENOUGH INSTABILITY WILL BE
PRESENT FOR A CHANCE OF THUNDERSTORMS ON WEDNESDAY WITH THE
FRONTAL PASSAGE. BECAUSE OF DISCREPANCIES IN COMPUTER MODEL
TIMING AND STRENGTH OF THE FRONT...CONFIDENCE IN ANY SEVERE
POTENTIAL IS LOW.

.SPOTTER INFORMATION STATEMENT...
SPOTTERS ACTIVATION IS NOT REQUESTED BUT SPOTTERS ARE ENCOURAGED
TO SUBMIT REPORTS OF SEVERE WEATHER THROUGH THE WEB BY GOING TO
WEATHER.GOV/ATLANTA.

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 24, 1:24 PM ESTFreezing Rain AdvisoryFFCBanks, Barrow, Bartow, Butts, Carroll, Catoosa and 36 more29 hr

Nearby

Winter Storm Warnings in Georgia, 2013Every winter storm warning in 2013

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.