Alert archive / Georgia / Wind Advisories in 2017

Wind Advisory 4, NWS Atlanta, GA

February 12, 20176 counties in Georgia

NWS Atlanta, GA issued this wind advisory at Feb 12, 2017, 2:43 PM EST for 6 counties in Georgia. It took effect at Feb 12, 2017, 7:00 PM EST. It was in force for 18 hr.

The area

The counties it named.

The facts

Issued
Feb 12, 2017, 2:43 PM EST (19:43 UTC)
In effect from
Feb 12, 2017, 7:00 PM EST
Expired
Feb 13, 2017, 1:00 PM EST
In force
18 hr
Issued by
NWS Atlanta, GA

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

The radar

The Atlanta radar (KFFC), 162 km from the middle of the area, began a volume at 19:41 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 12:00Z, 7.7 hours before the alert went out and 160 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 12:00Z on 2017-02-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 39 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 12:00Z on 2017-02-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 201 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
39 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
486 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
201 m²/s²
0-3 km storm-relative helicity
200 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

253 
WWUS72 KFFC 121943
NPWFFC

URGENT - WEATHER MESSAGE
National Weather Service Peachtree City GA
243 PM EST Sun Feb 12 2017

GAZ006>009-015-016-130345-
/O.NEW.KFFC.WI.Y.0004.170213T0000Z-170213T1800Z/
Fannin-Gilmer-Union-Towns-Lumpkin-White-
Including the cities of Dahlonega and Cleveland
243 PM EST Sun Feb 12 2017

...WIND ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 1 PM EST
MONDAY...

The National Weather Service in Peachtree City has issued a Wind
Advisory...which is in effect from 7 PM this evening to 1 PM EST
Monday.

* Locations...Northeast Georgia at elevations above 2000 ft.

* Winds...North 15 to 25 mph with gusts to 40 mph.

* Timing...Tonight through midday Monday.

* Impacts...Strong winds will bring down large tree limbs and some
  weaker trees. Unsecured outdoor items may be blown down.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that winds of at least 20 MPH, or gusts of
at least 35 MPH, are expected. Winds this strong can make driving
difficult, especially for high profile vehicles. Use extra
caution.

&&

$$
2 follow-up statements
780 
WWUS72 KFFC 130302
NPWFFC

URGENT - WEATHER MESSAGE
National Weather Service Peachtree City GA
1002 PM EST Sun Feb 12 2017


GAZ006>009-015-016-131800-
/O.CON.KFFC.WI.Y.0004.000000T0000Z-170213T1800Z/
Fannin-Gilmer-Union-Towns-Lumpkin-White-
Including the cities of Dahlonega and Cleveland
1002 PM EST Sun Feb 12 2017

...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST MONDAY...

* Locations...Northeast Georgia at elevations above 2000 ft.

* Winds...North 15 to 25 mph with gusts to 40 mph.

* Timing...Tonight through midday Monday.

* Impacts...Strong winds will bring down large tree limbs and 
  some weaker trees. Unsecured outdoor items may be blown down.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that winds of at least 20 MPH, or gusts of
at least 35 MPH, are expected. Winds this strong can make driving
difficult, especially for high profile vehicles. Use extra
caution.

&&

$$
468 
WWUS72 KFFC 130918
NPWFFC

URGENT - WEATHER MESSAGE
National Weather Service Peachtree City GA
418 AM EST Mon Feb 13 2017


GAZ006>009-015-016-131730-
/O.CON.KFFC.WI.Y.0004.000000T0000Z-170213T1800Z/
Fannin-Gilmer-Union-Towns-Lumpkin-White-
Including the cities of Dahlonega and Cleveland
418 AM EST Mon Feb 13 2017

...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...

* Locations...Northeast Georgia at elevations above 2000 ft.

* Winds...North 15 to 25 mph with gusts to 40 mph.

* Timing...Tonight through midday today.

* Impacts...Strong winds will bring down large tree limbs and 
  some weaker trees. Unsecured outdoor items may be blown down.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that winds of at least 20 MPH, or gusts of
at least 35 MPH, are expected. Winds this strong can make driving
difficult, especially for high profile vehicles. Use extra
caution.

&&

$$

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.