Alert archive / Georgia / Wind Advisories in 2016

Wind Advisory 17, NWS Atlanta, GA

December 12, 201611 counties in Georgia

NWS Atlanta, GA issued this wind advisory at Dec 12, 2016, 4:22 AM EST for 11 counties in Georgia. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued: Dec 12, 2016, 4:22 AM EST (09:22 UTC)
Expired: Dec 12, 2016, 9:00 AM EST
In force: 5 hr
Issued by: NWS Atlanta, GA

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

The radar

The Atlanta radar (KFFC), 150 km from the middle of the area, began a volume at 09:24 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, 9.4 hours before the alert went out and 149 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1260 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 327 m²/s²
0-3 km storm-relative helicity: 418 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

328 
WWUS72 KFFC 120922
NPWFFC

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
422 AM EST MON DEC 12 2016


GAZ001-002-005>009-013>016-121400-
/O.NEW.KFFC.WI.Y.0017.161212T0922Z-161212T1400Z/
DADE-WALKER-MURRAY-FANNIN-GILMER-UNION-TOWNS-PICKENS-DAWSON-
LUMPKIN-WHITE-
INCLUDING THE CITIES OF...DAHLONEGA...CLEVELAND
422 AM EST MON DEC 12 2016

...WIND ADVISORY IN EFFECT UNTIL 9 AM EST THIS MORNING...

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 9 AM EST THIS MORNING.

* LOCATIONS...THE NORTH GEORGIA COUNTIES WITH ELEVATIONS GREATER
  THAN 1500 FT.

* WINDS...SOUTH 15 TO 20 MPH WITH GUSTS TO 35 MPH.

* TIMING...UNTIL 9 AM THIS MORNING.

* IMPACTS...MINOR DAMAGE TO TREES...ESPECIALLY THOSE WEAKENED BY 
  FIRES AND DROUGHT...COULD HAVE LIMBS BREAK OFF WHICH MAY 
  EFFECT POWER LINES.

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

039 
WWUS72 KFFC 121346
NPWFFC

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
846 AM EST MON DEC 12 2016

.
GAZ001-002-005>009-013>016-121500-
/O.EXP.KFFC.WI.Y.0017.000000T0000Z-161212T1400Z/
DADE-WALKER-MURRAY-FANNIN-GILMER-UNION-TOWNS-PICKENS-DAWSON-
LUMPKIN-WHITE-
INCLUDING THE CITIES OF...DAHLONEGA...CLEVELAND
846 AM EST MON DEC 12 2016

...WIND ADVISORY WILL EXPIRE AT 9 AM EST THIS MORNING...

WINDS HAVE DECREASED BELOW CRITICAL THRESHOLDS.

$$

Nearby

Wind Advisories in Georgia, 2016 Every wind advisory in 2016

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.