Alert archive / Georgia / Wind Advisories in 2011

Wind Advisory 22, NWS Atlanta, GA

October 14, 20118 counties in Georgia

NWS Atlanta, GA issued this wind advisory at Oct 14, 2011, 2:52 AM EDT for 8 counties in Georgia. It took effect at Oct 14, 2011, 1:00 PM EDT. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Oct 14, 2011, 2:52 AM EDT (06:52 UTC)
In effect from
Oct 14, 2011, 1:00 PM EDT
Expired
Oct 14, 2011, 3:04 PM EDT
In force
2 hr
Issued by
NWS Atlanta, GA

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

The radar

The Atlanta radar (KFFC), 152 km from the middle of the area, began a volume at 06:57 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, 6.9 hours before the alert went out and 150 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 2011-10-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 423 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 2011-10-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 171 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
423 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
692 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
171 m²/s²
0-3 km storm-relative helicity
132 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

Open this sounding in Storm Lab

The text

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

276 
WWUS72 KFFC 140652
NPWFFC

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
252 AM EDT FRI OCT 14 2011

GAZ006>009-013>016-141500-
/O.NEW.KFFC.WI.Y.0022.111014T1700Z-111014T2200Z/
FANNIN-GILMER-UNION-TOWNS-PICKENS-DAWSON-LUMPKIN-WHITE-
INCLUDING THE CITIES OF...DAHLONEGA...CLEVELAND
252 AM EDT FRI OCT 14 2011

...WIND ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO 6 PM EDT
THIS EVENING FOR THE NORTHEAST GEORGIA MOUNTAINS ABOVE 1500 FEET...

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 1 PM THIS AFTERNOON TO 6 PM
EDT THIS EVENING. THE ADVISORY IS IN EFFECT FOR THE HIGHER
ELEVATIONS OF THE NORTHEAST GEORGIA MOUNTAINS...GENERALLY ABOVE
1500 FEET.

* WINDS...NORTHWEST AROUND 20 MPH WITH GUSTS UP TO 30 MPH.

* TIMING...WINDS WILL INCREASE THIS AFTERNOON AND SHOULD REMAIN
  STRONG THROUGH THIS EVENING.

* IMPACTS...AT THE HIGHER ELEVATIONS OF THE NORTHEAST GEORGIA
  MOUNTAINS...STRONG WINDS WILL ALLOW FOR SOME SMALL OR WEAK TREES
  TO FALL. UNSECURED OUTDOOR OBJECTS MAY ALSO BE PICKED UP AND
  BLOWN AROUND.

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.

&&

$$
2 follow-up statements
257 
WWUS72 KFFC 141440
NPWFFC

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1040 AM EDT FRI OCT 14 2011

GAZ006>009-013>016-142200-
/O.CON.KFFC.WI.Y.0022.111014T1700Z-111014T2200Z/
FANNIN-GILMER-UNION-TOWNS-PICKENS-DAWSON-LUMPKIN-WHITE-
INCLUDING THE CITIES OF...DAHLONEGA...CLEVELAND
1040 AM EDT FRI OCT 14 2011

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT THIS EVENING 
FOR THE NORTHEAST GEORGIA MOUNTAINS ABOVE 1500 FEET...

* WINDS...WEST TO NORTHWEST AROUND 20 MPH WITH GUSTS UP TO 30 MPH.

* TIMING...WINDS WILL INCREASE THIS AFTERNOON AND SHOULD REMAIN 
  STRONG INTO THIS EVENING. 

* IMPACTS...AT THE HIGHER ELEVATIONS OF THE NORTHEAST GEORGIA
  MOUNTAINS...STRONG WINDS WILL ALLOW FOR SOME SMALL OR WEAK TREES TO
  FALL. UNSECURED OUTDOOR OBJECTS MAY ALSO BE PICKED UP AND BLOWN
  AROUND.

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.

&&

$$
369 
WWUS72 KFFC 141904
NPWFFC

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
304 PM EDT FRI OCT 14 2011


GAZ006>009-013>016-142015-
/O.CAN.KFFC.WI.Y.0022.000000T0000Z-111014T2200Z/
FANNIN-GILMER-UNION-TOWNS-PICKENS-DAWSON-LUMPKIN-WHITE-
INCLUDING THE CITIES OF...DAHLONEGA...CLEVELAND
304 PM EDT FRI OCT 14 2011

...WIND ADVISORY IS CANCELLED FOR THE NORTHEAST GEORGIA MOUNTAINS...

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS CANCELLED THE WIND
ADVISORY. 

WINDS...ALTHOUGH STRONG AND GUSTY AT TIMES...HAVE REMAINED BELOW WIND
ADVISORY LEVELS TODAY AND ARE EXPECTED TO REMAIN SO THROUGH THE REST
OF THE AFTERNOON AND EVENING.

WINDS TODAY HAVE GENERALLY BEEN BETWEEN WEST AND NORTH AT AROUND 
12 TO 15 MPH WITH GUSTS AS HIGH AS 20 TO 28 MPH. THESE WINDS ARE
EXPECTED TO CONTINUE INTO THE EVENING BEFORE SUBSIDING A BIT
OVERNIGHT. 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 13, 8:06 PM EDTSpecial Weather StatementFFCClayton, DeKalb, Fayette, Henry, Rockdale, Spalding39 min

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.