Alert archive / Georgia / Wind Chill Advisories in 2018

Wind Chill Advisory 1, NWS Atlanta, GA

January 1, 201825 counties in Georgia

NWS Atlanta, GA issued this wind chill advisory at Jan 1, 2018, 2:40 AM EST for 25 counties in Georgia. It took effect at Jan 1, 2018, 7:00 PM EST. It was in force for 15 hr.

The area

The counties it named.

The facts

Issued
Jan 1, 2018, 2:40 AM EST (07:40 UTC)
In effect from
Jan 1, 2018, 7:00 PM EST
Expired
Jan 2, 2018, 10:00 AM EST
In force
15 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, Dade County, GA, Dawson County, GA, Douglas County, GA, Fannin County, GA, Floyd County, GA, Forsyth County, GA, Gilmer County, GA, Gordon County, GA, Haralson County, GA, Lumpkin County, GA, Murray County, GA, Paulding County, GA, Pickens County, GA, Polk County, GA, Towns County, GA, Union County, GA, Walker County, GA, White County, GA, Whitfield County, GA

The radar

The Atlanta radar (KFFC), 118 km from the middle of the area, began a volume at 07:41 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 00:00Z, 7.7 hours before the alert went out and 118 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 00:00Z on 2018-01-01Temperature 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 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 00:00Z on 2018-01-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 47 square meters per square second.1939587897117Sfc1 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
1059 m above ground
0-6 km bulk shear
80 kt
0-1 km storm-relative helicity
47 m²/s²
0-3 km storm-relative helicity
165 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

295 
WWUS42 KFFC 010740
WSWFFC

URGENT - WINTER WEATHER MESSAGE
National Weather Service Peachtree City GA
240 AM EST Mon Jan 1 2018

GAZ001>009-011>016-019>021-030>032-041>043-011600-
/O.NEW.KFFC.WC.Y.0001.180102T0000Z-180102T1500Z/
/O.CON.KFFC.WC.Y.0003.000000T0000Z-180101T1600Z/
Dade-Walker-Catoosa-Whitfield-Murray-Fannin-Gilmer-Union-Towns-
Chattooga-Gordon-Pickens-Dawson-Lumpkin-White-Floyd-Bartow-
Cherokee-Polk-Paulding-Cobb-Haralson-Carroll-Douglas-
Including the cities of Calhoun, Dahlonega, Cleveland, Rome, 
Cartersville, Marietta, Carrollton, and Douglasville
240 AM EST Mon Jan 1 2018

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM EST THIS
MORNING...
...WIND CHILL ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 10 AM
EST TUESDAY...

* WHAT...Very cold wind chills expected. The cold wind chills 
  will cause frostbite in as little as 30 minutes to exposed skin.
  Expect wind chills to range from 5 above zero to 5 below zero. 

* WHERE...Portions of north Georgia, generally along and north of
  a line from Carrollton to Canton to Cleveland.

* WHEN...Until 11 AM EST this morning, and then again from 7 PM 
  this evening to 10 AM EST Tuesday.

* ADDITIONAL DETAILS....Low temperatures will drop to 5 to 15 this
  morning and again Tuesday morning. Winds will be north 5 to 15
  mph with a few higher gusts.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Advisory means that cold air and the wind will
combine to create low wind chills. Frost bite and hypothermia can
occur if precautions are not taken. Make sure you wear a hat and
gloves.



$$
4 follow-up statements
815 
WWUS42 KFFC 011706
WSWFFC

URGENT - WINTER WEATHER MESSAGE
National Weather Service Peachtree City GA
1206 PM EST Mon Jan 1 2018


GAZ001>009-011>016-019>021-030>032-041>043-021000-
/O.CON.KFFC.WC.Y.0001.180102T0000Z-180102T1500Z/
Dade-Walker-Catoosa-Whitfield-Murray-Fannin-Gilmer-Union-Towns-
Chattooga-Gordon-Pickens-Dawson-Lumpkin-White-Floyd-Bartow-
Cherokee-Polk-Paulding-Cobb-Haralson-Carroll-Douglas-
Including the cities of Calhoun, Dahlonega, Cleveland, Rome, 
Cartersville, Marietta, Carrollton, and Douglasville
1206 PM EST Mon Jan 1 2018

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING
TO 10 AM EST TUESDAY...

* WHAT...Very cold wind chills expected. The cold wind chills will
  cause frostbite in as little as 30 minutes to exposed skin.
  Expect wind chills to range from 5 above zero to 0.

* WHERE...Portions of north Georgia, generally along and north of
  a line from Carrollton to Canton to Cleveland.

* WHEN...From 7 PM this evening to 10 AM EST Tuesday.

* ADDITIONAL DETAILS...Low temperatures will drop to 5 to 15
  degrees Tuesday morning. Winds will be north from 5 to 15 mph 
  with a few higher gusts.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Advisory means that cold air and the wind will
combine to create low wind chills. Frost bite and hypothermia can
occur if precautions are not taken. Make sure you wear a hat and
gloves.

$$
738 
WWUS42 KFFC 011941
WSWFFC

URGENT - WINTER WEATHER MESSAGE
National Weather Service Peachtree City GA
241 PM EST Mon Jan 1 2018

GAZ022-021000-
/O.EXA.KFFC.WC.Y.0001.180102T0000Z-180102T1500Z/
Forsyth-
241 PM EST Mon Jan 1 2018

...WIND CHILL ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 10 AM
EST TUESDAY...

* WHAT...Very cold wind chills expected. The cold wind chills will
  cause frostbite in as little as 30 minutes to exposed skin.
  Expect wind chills to range from 13 above zero to 5 above zero.

* WHERE...Forsyth County.

* WHEN...From 7 PM this evening to 10 AM EST Tuesday.

* ADDITIONAL DETAILS...Low temperatures will drop to 10 to 15 
  degrees Tuesday morning. Winds will be north from 5 to 15 mph 
  with a few higher gusts.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Advisory means that cold air and the wind will
combine to create low wind chills. Frost bite and hypothermia can
occur if precautions are not taken. Make sure you wear a hat and
gloves.

$$

GAZ001>009-011>016-019>021-030>032-041>043-021000-
/O.CON.KFFC.WC.Y.0001.180102T0000Z-180102T1500Z/
Dade-Walker-Catoosa-Whitfield-Murray-Fannin-Gilmer-Union-Towns-
Chattooga-Gordon-Pickens-Dawson-Lumpkin-White-Floyd-Bartow-
Cherokee-Polk-Paulding-Cobb-Haralson-Carroll-Douglas-
Including the cities of Calhoun, Dahlonega, Cleveland, Rome, 
Cartersville, Marietta, Carrollton, and Douglasville
241 PM EST Mon Jan 1 2018

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING
TO 10 AM EST TUESDAY...

* WHAT...Very cold wind chills expected. The cold wind chills will
  cause frostbite in as little as 30 minutes to exposed skin.
  Expect wind chills to range from 5 above zero to 9 below zero.

* WHERE...Portions of north Georgia, generally along and north of
  a line from Carrollton to Cumming to Cleveland.

* WHEN...From 7 PM this evening to 10 AM EST Tuesday.

* ADDITIONAL DETAILS...Low temperatures will drop to 5 to 15
  degrees Tuesday morning. Winds will be north from 5 to 15 mph 
  with a few higher gusts.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Advisory means that cold air and the wind will
combine to create low wind chills. Frost bite and hypothermia can
occur if precautions are not taken. Make sure you wear a hat and
gloves.

$$
373 
WWUS42 KFFC 020938
WSWFFC

URGENT - WINTER WEATHER MESSAGE
National Weather Service Peachtree City GA
438 AM EST Tue Jan 2 2018


GAZ001>009-011>016-019>022-030>032-041>043-021500-
/O.CON.KFFC.WC.Y.0001.000000T0000Z-180102T1500Z/
Dade-Walker-Catoosa-Whitfield-Murray-Fannin-Gilmer-Union-Towns-
Chattooga-Gordon-Pickens-Dawson-Lumpkin-White-Floyd-Bartow-
Cherokee-Forsyth-Polk-Paulding-Cobb-Haralson-Carroll-Douglas-
Including the cities of Calhoun, Dahlonega, Cleveland, Rome, 
Cartersville, Marietta, Carrollton, and Douglasville
438 AM EST Tue Jan 2 2018

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST THIS
MORNING...

* WHAT...Very cold wind chills expected. The cold wind chills will
  cause frostbite in as little as 30 minutes to exposed skin.
  Expect wind chills to range from 5 above zero to 5 below zero.

* WHERE...Portions of north Georgia, generally along and north of
  a line from Carrollton to Cumming to Cleveland.

* WHEN...Until 10 AM EST this morning.

* ADDITIONAL DETAILS...Temperatures this morning will range from
  the single digits in the northeast mountains and along the
  higher elevations in northwest Georgia...to 10 to 15 elsewhere.
  Winds will be north from 5 to 10 mph.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Advisory means that cold air and the wind will
combine to create low wind chills. Frost bite and hypothermia can
occur if precautions are not taken. Make sure you wear a hat and
gloves.

$$
469 
WWUS42 KFFC 021506
WSWFFC

URGENT - WINTER WEATHER MESSAGE
National Weather Service Peachtree City GA
1006 AM EST Tue Jan 2 2018

GAZ001>009-011>016-019>022-030>032-041>043-021615-
/O.EXP.KFFC.WC.Y.0001.000000T0000Z-180102T1500Z/
Dade-Walker-Catoosa-Whitfield-Murray-Fannin-Gilmer-Union-Towns-
Chattooga-Gordon-Pickens-Dawson-Lumpkin-White-Floyd-Bartow-
Cherokee-Forsyth-Polk-Paulding-Cobb-Haralson-Carroll-Douglas-
Including the cities of Calhoun, Dahlonega, Cleveland, Rome, 
Cartersville, Marietta, Carrollton, and Douglasville
1006 AM EST Tue Jan 2 2018

...WIND CHILL ADVISORY HAS EXPIRED...

The Wind Chill Advisory will be allowed to expire as temperatures
continue to rise.

$$

Nearby

Wind Chill Advisories in Georgia, 2018Every wind chill advisory in 2018

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.