Alert archive / Georgia / Wind Advisories in 2017

Wind Advisory 14, NWS Atlanta, GA

October 23, 20175 counties in Georgia

NWS Atlanta, GA issued this wind advisory at Oct 23, 2017, 4:10 AM EDT for 5 counties in Georgia. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued
Oct 23, 2017, 4:10 AM EDT (08:10 UTC)
Expired
Oct 23, 2017, 1:00 PM EDT
In force
9 hr
Issued by
NWS Atlanta, GA

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

The radar

The Greer radar (KGSP), 159 km from the middle of the area, began a volume at 08:13 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, 8.2 hours before the alert went out and 163 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 2017-10-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 13 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 2017-10-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 82 square meters per square second.193958Sfc1 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
13 J/kg
Mixed-layer CIN
-48 J/kg
Mixed-layer LCL
887 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
82 m²/s²
0-3 km storm-relative helicity
131 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

972 
WWUS72 KFFC 230810
NPWFFC

URGENT - WEATHER MESSAGE
National Weather Service Peachtree City GA
410 AM EDT Mon Oct 23 2017

GAZ006-008-009-015-016-231700-
/O.NEW.KFFC.WI.Y.0014.171023T0810Z-171023T1700Z/
Fannin-Union-Towns-Lumpkin-White-
Including the cities of Dahlonega and Cleveland
410 AM EDT Mon Oct 23 2017

...WIND ADVISORY IN EFFECT UNTIL 1 PM EDT THIS AFTERNOON...

The National Weather Service in Peachtree City has issued a Wind
Advisory, which is in effect until 1 PM EDT this afternoon.

* Locations...Elevations above 1500 ft in the northeast mountains.

* Winds...20 to 25 mph with gusts to 35 mph.

* Timing...Now through Early Afternoon

* Impacts...Strong winds will bring down large tree limbs and 
  some weaker trees, especially with the wet soils. Unsecured 
  outdoor items may be blown around.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that winds of 35 mph are expected. Winds
this strong can make driving difficult...especially for high
profile vehicles. Use extra caution.

&&

$$
1 follow-up statement
583 
WWUS72 KFFC 231656
NPWFFC

URGENT - WEATHER MESSAGE
National Weather Service Peachtree City GA
1256 PM EDT Mon Oct 23 2017

GAZ006-008-009-015-016-231800-
/O.EXP.KFFC.WI.Y.0014.000000T0000Z-171023T1700Z/
Fannin-Union-Towns-Lumpkin-White-
Including the cities of Dahlonega and Cleveland
1256 PM EDT Mon Oct 23 2017

...WIND ADVISORY WILL EXPIRE AT 1 PM EDT THIS AFTERNOON...

The Wind Advisory will expire at 1 PM for the Northeast Georgia
mountains. Although winds are not expected to meet Wind Advisory
criteria, conditions will still be breezy through the afternoon.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 23, 2:09 AM EDTSpecial Weather StatementFFCBleckley51 min
Oct 23, 3:40 AM EDTSpecial Weather StatementFFCSumter50 min
Oct 23, 3:49 AM EDTSpecial Weather StatementFFCCrawford26 min
Oct 23, 4:14 AM EDTSpecial Weather StatementFFCWebster31 min
Oct 23, 4:24 AM EDTSpecial Weather StatementFFCSumter36 min
Oct 23, 4:58 AM EDTSpecial Weather StatementFFCDooly, Macon, Schley, Taylor32 min
Oct 23, 9:49 AM EDTSpecial Weather StatementFFCCobb, Coweta, Douglas, Harris, Meriwether26 min
Oct 23, 10:13 AM EDTSpecial Weather StatementFFCCherokee, Clayton, Cobb, Dawson, Fayette, Fulton and 1 more32 min
Oct 23, 10:15 AM EDTSpecial Weather StatementFFCMarion, Talbot30 min
Oct 23, 10:40 AM EDTSpecial Weather StatementFFCMarion, Taylor, Upson35 min
Oct 23, 10:42 AM EDTSpecial Weather StatementFFCClayton, Dawson, DeKalb, Forsyth, Spalding33 min
Oct 23, 11:11 AM EDTSpecial Weather StatementFFCCrawford, Monroe, Taylor34 min
Oct 23, 11:13 AM EDTSpecial Weather StatementFFCButts, Forsyth, Gwinnett, Hall, Henry, Lumpkin and 3 more32 min
Oct 23, 11:16 AM EDTSpecial Weather StatementFFCUnion29 min
Oct 23, 11:40 AM EDTSpecial Weather StatementFFCCrawford, Macon, Monroe35 min
Oct 23, 11:42 AM EDTSpecial Weather StatementFFCBarrow, Butts, Hall, Newton, Walton33 min
Oct 23, 11:44 AM EDTSpecial Weather StatementFFCFannin, Lumpkin, Towns, Union, White31 min
Oct 23, 12:19 PM EDTSpecial Weather StatementFFCBanks, Barrow, Clarke, Greene, Jackson, Jasper and 6 more26 min
Oct 23, 12:33 PM EDTRiver Flood WarningFFCFulton, Gwinnett24 hr
Oct 23, 12:45 PM EDTSpecial Weather StatementFFCBanks, Clarke, Greene, Jackson, Madison, Morgan and 3 more30 min
Oct 23, 1:08 PM EDTRiver Flood WarningFFCGwinnett24 hr
Oct 23, 1:15 PM EDTSpecial Weather StatementFFCBaldwin, Greene, Hancock, Madison, Oglethorpe, Taliaferro and 2 more45 min
Oct 23, 4:22 PM EDTSpecial Weather StatementFFCToombs23 min

Nearby

Wind Advisories in Georgia, 2017Every wind advisory in 2017

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.