Alert archive / Georgia / High Wind Warnings in 2007

High Wind Warning 2, NWS Atlanta, GA

December 20, 2007Chattooga County, Floyd County, Gordon County, Georgia

NWS Atlanta, GA issued this high wind warning at Dec 20, 2007, 6:24 PM EST for Chattooga County, Floyd County, Gordon County, Georgia. It was in force for 96 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Dec 20, 2007, 6:24 PM EST (23:24 UTC)
Expired
Dec 20, 2007, 8:00 PM EST
In force
96 min
Issued by
NWS Atlanta, GA

Counties Chattooga County, GA, Floyd County, GA, Gordon County, GA

The radar

The Northeast Alabama radar (KHTX), 103 km from the middle of the area, began a volume at 23:24 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.

What was reported inside it

TimeReportWhereRemark
Dec 20, 7:00 PM ESTNON-TSTM WND DMG5 N Rome, GA3 TREES DOWN ON OLD DALTON ROAD.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 11.4 hours before the alert went out and 130 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 2007-12-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2007-12-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 80 square meters per square second.1939587897117Sfc1 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
756 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
80 m²/s²
0-3 km storm-relative helicity
118 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.

000 
WWUS72 KFFC 202324
NPWFFC

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
624 PM EST THU DEC 20 2007

GAZ011-012-019-210730-
/O.NEW.KFFC.HW.W.0002.071220T2324Z-071221T0100Z/
/O.EXT.KFFC.WI.Y.0017.000000T0000Z-071221T0900Z/
CHATTOOGA-GORDON-FLOYD-
INCLUDING THE CITIES OF...CALHOUN...ROME
624 PM EST THU DEC 20 2007

...HIGH WIND WARNING IN EFFECT UNTIL 8 PM EST THIS EVENING...
...WIND ADVISORY NOW IN EFFECT UNTIL 4 AM EST FRIDAY...

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A HIGH
WIND WARNING...WHICH IS IN EFFECT UNTIL 8 PM EST THIS EVENING.
A WIND ADVISORY IS ALSO IN EFFECT UNTIL 4 AM EST FRIDAY MORNING. 

STRONG WIND GUSTS UP TO 60 MPH CAN BE EXPECTED ACROSS CHATTOOGA...
GORDON AND FLOYD COUNTIES...INCLUDING THE ROME AREA THROUGH 8 PM
TONIGHT. REPORTS OF TREES AND POWER LINES DOWN HAVE ALREADY BEEN
RECEIVED ACROSS MUCH OF CHATTOOGA COUNTY.

THE REST OF THE NIGHT...WINDS OF 15 TO 25 MPH AND SOME GUSTS OF
45 MPH OR MORE CAN BE EXPECTED...ESPECIALLY OVER THE MOUNTAINS.

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 35 MPH OR GUSTS
OF 45 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE AS WELL AS
WIDESPREAD POWER OUTAGES.

$$

GAZ001>009-013>016-020>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-210730-
/O.CON.KFFC.WI.Y.0017.000000T0000Z-071221T0900Z/
DADE-WALKER-CATOOSA-WHITFIELD-MURRAY-FANNIN-GILMER-UNION-TOWNS-
PICKENS-DAWSON-LUMPKIN-WHITE-BARTOW-CHEROKEE-FORSYTH-HALL-BANKS-
JACKSON-MADISON-POLK-PAULDING-COBB-NORTH FULTON-GWINNETT-BARROW-
CLARKE-OCONEE-OGLETHORPE-WILKES-HARALSON-CARROLL-DOUGLAS-
SOUTH FULTON-DEKALB-ROCKDALE-WALTON-NEWTON-MORGAN-GREENE-
TALIAFERRO-HEARD-COWETA-FAYETTE-CLAYTON-SPALDING-HENRY-BUTTS-
JASPER-PUTNAM-HANCOCK-WARREN-TROUP-MERIWETHER-PIKE-UPSON-LAMAR-
MONROE-JONES-BALDWIN-WASHINGTON-GLASCOCK-JEFFERSON-HARRIS-TALBOT-
TAYLOR-CRAWFORD-BIBB-TWIGGS-WILKINSON-JOHNSON-EMANUEL-MUSCOGEE-
CHATTAHOOCHEE-MARION-SCHLEY-MACON-PEACH-HOUSTON-BLECKLEY-LAURENS-
TREUTLEN-STEWART-WEBSTER-SUMTER-DOOLY-CRISP-PULASKI-WILCOX-DODGE-
TELFAIR-WHEELER-MONTGOMERY-TOOMBS-
INCLUDING THE CITIES OF...DAHLONEGA...CLEVELAND...CARTERSVILLE...
GAINESVILLE...MARIETTA...ATLANTA...LAWRENCEVILLE...ATHENS...
CARROLLTON...DOUGLASVILLE...EAST POINT...DECATUR...CONYERS...
COVINGTON...NEWNAN...PEACHTREE CITY...GRIFFIN...MILLEDGEVILLE...
MACON...SWAINSBORO...COLUMBUS...WARNER ROBINS...DUBLIN...
LUMPKIN...AMERICUS...CORDELE...VIDALIA
624 PM EST THU DEC 20 2007

...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST FRIDAY...

A WIND ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST FRIDAY.

WINDS OF 15 TO 25 MPH AND SOME GUSTS OF 45 MPH OR MORE CAN BE
EXPECTED...ESPECIALLY OVER THE MOUNTAINS.

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

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 20, 6:09 PM ESTWind AdvisoryFFCBaldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 90 more8 hr

Nearby

High Wind Warnings in Georgia, 2007Every high wind warning in 2007

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.