Alert archive / Georgia / Wind Advisories in 2011

Wind Advisory 24, NWS Atlanta, GA

October 20, 20117 counties in Georgia

NWS Atlanta, GA issued this wind advisory at Oct 20, 2011, 4:17 AM EDT for 7 counties in Georgia. It took effect at Oct 20, 2011, 8:00 AM EDT. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Oct 20, 2011, 4:17 AM EDT (08:17 UTC)
In effect from
Oct 20, 2011, 8:00 AM EDT
Expired
Oct 20, 2011, 2:00 PM EDT
In force
6 hr
Issued by
NWS Atlanta, GA

Counties Dawson County, GA, Fannin County, GA, Gilmer County, GA, Lumpkin County, GA, Towns County, GA, Union County, GA, White County, GA

The radar

The Atlanta radar (KFFC), 157 km from the middle of the area, began a volume at 08:23 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, 8.3 hours before the alert went out and 154 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 2011-10-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 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 00:00Z on 2011-10-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -25 square meters per square second.1939587897117136156175Sfc1 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
1285 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
-25 m²/s²
0-3 km storm-relative helicity
-3 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.

132 
WWUS72 KFFC 200817
NPWFFC

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
417 AM EDT THU OCT 20 2011


GAZ006>009-014>016-201630-
/O.NEW.KFFC.WI.Y.0024.111020T1200Z-111020T1800Z/
/O.NEW.KFFC.FR.Y.0005.111021T0600Z-111021T1400Z/
FANNIN-GILMER-UNION-TOWNS-DAWSON-LUMPKIN-WHITE-
INCLUDING THE CITIES OF...DAHLONEGA...CLEVELAND
417 AM EDT THU OCT 20 2011

...WIND ADVISORY IN EFFECT FROM 8 AM THIS MORNING TO 2 PM EDT
THIS AFTERNOON FOR THE NORTHEAST GEORGIA MOUNTAINS ABOVE 1500 FEET...
...FROST ADVISORY IN EFFECT FROM 2 AM TO 10 AM EDT FRIDAY FOR PORTIONS 
OF WEST AND NORTH GEORGIA...

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 8 AM THIS MORNING TO 2 PM EDT
THIS AFTERNOON. A FROST ADVISORY HAS ALSO BEEN ISSUED. THIS FROST
ADVISORY IS IN EFFECT FROM 2 AM TO 10 AM EDT FRIDAY. 

* WINDS...WEST WINDS NEAR 25 MPH WITH GUSTS UP TO 35 MPH.

* TEMPERATURES...FROM 33 TO 36 DEGREES FAHRENHEIT.

* TIMING...WINDS WILL INCREASE THIS MORNING AND SHOULD REMAIN
  STRONG INTO THIS AFTERNOON. WINDS WILL DIMINISH TONIGHT WITH
  TEMPERATURES FALLING TO THE MID 30S AFTER MIDNIGHT.

* IMPACTS...AT THE HIGHER ELEVATIONS OF THE NORTH GEORGIA
  MOUNTAINS...STRONG WINDS COULD ALLOW SOME SMALL OR WEAK TREES TO
  FALL. UNSECURED OUTDOOR OBJECTS MAY ALSO BE PICKED UP AND BLOWN
  AROUND. PREMATURELY BUDDING PLANTS...SHRUBS...AND TREES WILL BE
  SUSCEPTIBLE TO THESE COLD TEMPERATURES AND MAY SUFFER FROST
  DAMAGE AND COULD BE KILLED IF LEFT UNPROTECTED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WIND SPEEDS OF AT LEAST
20 MPH...OR GUSTS TO 35 MPH OR STRONGER ARE
EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...
ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION.

A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR
PLANTS MAY BE KILLED IF LEFT UNCOVERED.

&&

$$

GAZ001>005-011>013-019>023-030>034-041>048-052>057-066>068-078-
201630-
/O.NEW.KFFC.FR.Y.0005.111021T0600Z-111021T1400Z/
DADE-WALKER-CATOOSA-WHITFIELD-MURRAY-CHATTOOGA-GORDON-PICKENS-
FLOYD-BARTOW-CHEROKEE-FORSYTH-HALL-POLK-PAULDING-COBB-
NORTH FULTON-GWINNETT-HARALSON-CARROLL-DOUGLAS-SOUTH FULTON-
DEKALB-ROCKDALE-WALTON-NEWTON-HEARD-COWETA-FAYETTE-CLAYTON-
SPALDING-HENRY-TROUP-MERIWETHER-PIKE-HARRIS-
INCLUDING THE CITIES OF...CALHOUN...ROME...CARTERSVILLE...
GAINESVILLE...MARIETTA...ATLANTA...LAWRENCEVILLE...CARROLLTON...
DOUGLASVILLE...EAST POINT...DECATUR...CONYERS...COVINGTON...
NEWNAN...PEACHTREE CITY...GRIFFIN
417 AM EDT THU OCT 20 2011

...FROST ADVISORY IN EFFECT FROM 2 AM TO 10 AM EDT FRIDAY FOR PORTIONS 
OF WEST AND NORTH GEORGIA...

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A FROST
ADVISORY...WHICH IS IN EFFECT FROM 2 AM TO 10 AM EDT FRIDAY. 

* TEMPERATURES...FROM 33 TO 36 DEGREES FAHRENHEIT.

* TIMING...TEMPERATURES WILL FALL TO THE MID 30S AFTER MIDNIGHT.

* IMPACTS...PREMATURELY BUDDING PLANTS...SHRUBS...AND TREES WILL BE
  SUSCEPTIBLE TO THESE COLD TEMPERATURES AND MAY SUFFER FROST
  DAMAGE AND COULD BE KILLED IF LEFT UNPROTECTED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR
PLANTS MAY BE KILLED IF LEFT UNCOVERED.

&&

$$
2 follow-up statements
056 
WWUS72 KFFC 201553
NPWFFC

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1153 AM EDT THU OCT 20 2011

GAZ006>009-014>016-201800-
/O.CON.KFFC.WI.Y.0024.000000T0000Z-111020T1800Z/
/O.CON.KFFC.FR.Y.0005.111021T0600Z-111021T1400Z/
FANNIN-GILMER-UNION-TOWNS-DAWSON-LUMPKIN-WHITE-
INCLUDING THE CITIES OF...DAHLONEGA...CLEVELAND
1153 AM EDT THU OCT 20 2011

...WIND ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS
AFTERNOON FOR THE NORTHEAST GEORGIA MOUNTAINS ABOVE 1500 FEET...
...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 10 AM EDT
FRIDAY FOR PORTIONS OF NORTH AND WEST GEORGIA...

* WINDS...WEST WINDS NEAR 25 MPH WITH GUSTS UP TO 35 MPH WILL
  CONTINUE THROUGH EARLY AFTERNOON ACROSS PARTS OF NORTH GEORGIA.

* TEMPERATURES...FROM 33 TO 36 DEGREES FAHRENHEIT ARE EXPECTED
  EARLY FRIDAY MORNING ACROSS PARTS OF NORTH AND WEST GEORGIA.

* TIMING...STRONG WINDS WILL CONTINUE ACROSS PARTS OF NORTH
  GEORGIA THROUGH EARLY AFTERNOON. WINDS WILL DIMINISH TONIGHT
  WITH TEMPERATURES FALLING INTO THE MID 30S AFTER MIDNIGHT.

* IMPACTS...STRONG WINDS ACROSS THE HIGHER ELEVATIONS OF THE NORTH
  GEORGIA COULD ALLOW SOME SMALL OR WEAK TREES TO FALL. UNSECURED
  OUTDOOR OBJECTS MAY ALSO BE PICKED UP AND BLOWN AROUND.
  PREMATURELY BUDDING PLANTS...SHRUBS...AND TREES WILL BE
  SUSCEPTIBLE TO THE COLD TEMPERATURES EXPECTED TONIGHT AND MAY
  SUFFER FROST DAMAGE IF LEFT UNPROTECTED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WIND SPEEDS OF AT LEAST
20 MPH...OR GUSTS TO 35 MPH OR STRONGER ARE EXPECTED. WINDS THIS
STRONG CAN MAKE DRIVING DIFFICULT... ESPECIALLY FOR HIGH PROFILE
VEHICLES. USE EXTRA CAUTION.

A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR
PLANTS MAY BE KILLED IF LEFT UNCOVERED.

&&

$$

GAZ001>005-011>013-019>023-030>034-041>048-052>057-066>068-078-
201800-
/O.CON.KFFC.FR.Y.0005.111021T0600Z-111021T1400Z/
DADE-WALKER-CATOOSA-WHITFIELD-MURRAY-CHATTOOGA-GORDON-PICKENS-
FLOYD-BARTOW-CHEROKEE-FORSYTH-HALL-POLK-PAULDING-COBB-
NORTH FULTON-GWINNETT-HARALSON-CARROLL-DOUGLAS-SOUTH FULTON-
DEKALB-ROCKDALE-WALTON-NEWTON-HEARD-COWETA-FAYETTE-CLAYTON-
SPALDING-HENRY-TROUP-MERIWETHER-PIKE-HARRIS-
INCLUDING THE CITIES OF...CALHOUN...ROME...CARTERSVILLE...
GAINESVILLE...MARIETTA...ATLANTA...LAWRENCEVILLE...CARROLLTON...
DOUGLASVILLE...EAST POINT...DECATUR...CONYERS...COVINGTON...
NEWNAN...PEACHTREE CITY...GRIFFIN
1153 AM EDT THU OCT 20 2011

...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 10 AM EDT
FRIDAY FOR PORTIONS OF NORTH AND WEST GEORGIA...

* TEMPERATURES...FROM 33 TO 36 DEGREES FAHRENHEIT.

* TIMING...TEMPERATURES WILL FALL TO THE MID 30S AFTER MIDNIGHT.

* IMPACTS...PREMATURELY BUDDING PLANTS...SHRUBS...AND TREES WILL 
  BE SUSCEPTIBLE TO THESE COLD TEMPERATURES AND MAY SUFFER FROST 
  DAMAGE AND COULD BE KILLED IF LEFT UNPROTECTED. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR
PLANTS MAY BE KILLED IF LEFT UNCOVERED.

&&

$$
941 
WWUS72 KFFC 201809
NPWFFC

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
209 PM EDT THU OCT 20 2011

GAZ006>009-014>016-210900-
/O.EXP.KFFC.WI.Y.0024.000000T0000Z-111020T1800Z/
/O.CON.KFFC.FR.Y.0005.111021T0600Z-111021T1400Z/
FANNIN-GILMER-UNION-TOWNS-DAWSON-LUMPKIN-WHITE-
INCLUDING THE CITIES OF...DAHLONEGA...CLEVELAND
209 PM EDT THU OCT 20 2011

...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 10 AM EDT
FRIDAY FOR PORTIONS OF NORTH AND WEST GEORGIA...
...WIND ADVISORY HAS EXPIRED...

* TEMPERATURES...FROM 33 TO 36 DEGREES FAHRENHEIT.

* TIMING...TEMPERATURES WILL FALL INTO THE MID 30S AFTER MIDNIGHT.

* IMPACTS...PREMATURELY BUDDING PLANTS...SHRUBS...AND TREES WILL
  BE SUSCEPTIBLE TO THE COLD TEMPERATURES EXPECTED TONIGHT AND MAY
  SUFFER FROST DAMAGE IF LEFT UNPROTECTED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR
PLANTS MAY BE KILLED IF LEFT UNCOVERED.

&&

$$

GAZ001>005-011>013-019>023-030>034-041>048-052>057-066>068-078-
210900-
/O.CON.KFFC.FR.Y.0005.111021T0600Z-111021T1400Z/
DADE-WALKER-CATOOSA-WHITFIELD-MURRAY-CHATTOOGA-GORDON-PICKENS-
FLOYD-BARTOW-CHEROKEE-FORSYTH-HALL-POLK-PAULDING-COBB-
NORTH FULTON-GWINNETT-HARALSON-CARROLL-DOUGLAS-SOUTH FULTON-
DEKALB-ROCKDALE-WALTON-NEWTON-HEARD-COWETA-FAYETTE-CLAYTON-
SPALDING-HENRY-TROUP-MERIWETHER-PIKE-HARRIS-
INCLUDING THE CITIES OF...CALHOUN...ROME...CARTERSVILLE...
GAINESVILLE...MARIETTA...ATLANTA...LAWRENCEVILLE...CARROLLTON...
DOUGLASVILLE...EAST POINT...DECATUR...CONYERS...COVINGTON...
NEWNAN...PEACHTREE CITY...GRIFFIN
209 PM EDT THU OCT 20 2011

...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 10 AM EDT
FRIDAY FOR PORTIONS OF NORTH AND WEST GEORGIA...

* TEMPERATURES...FROM 33 TO 36 DEGREES FAHRENHEIT.

* TIMING...TEMPERATURES WILL FALL INTO THE MID 30S AFTER MIDNIGHT.

* IMPACTS...PREMATURELY BUDDING PLANTS...SHRUBS...AND TREES WILL
  BE SUSCEPTIBLE TO THE COLD TEMPERATURES EXPECTED TONIGHT AND MAY
  SUFFER FROST DAMAGE IF LEFT UNPROTECTED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR
PLANTS MAY BE KILLED IF LEFT UNCOVERED.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 20, 4:17 AM EDTFrost AdvisoryFFCBartow, Carroll, Catoosa, Chattooga, Cherokee, Clayton and 36 more30 hr

Nearby

Wind Advisories in Georgia, 2011Every wind advisory in 2011

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.