Alert archive / Georgia / Wind Advisories in 2009

Wind Advisory 17, NWS Atlanta, GA

April 20, 200961 counties in Georgia

NWS Atlanta, GA issued this wind advisory at Apr 20, 2009, 3:26 PM EDT for 61 counties in Georgia. It took effect at Apr 21, 2009, 11:00 AM EDT. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued
Apr 20, 2009, 3:26 PM EDT (19:26 UTC)
In effect from
Apr 21, 2009, 11:00 AM EDT
Expired
Apr 21, 2009, 7:00 PM EDT
In force
8 hr
Issued by
NWS Atlanta, GA
All 61 counties

Banks County, GA, Barrow County, GA, Bartow County, GA, Butts County, GA, Carroll County, GA, Catoosa County, GA, Chattooga County, GA, Cherokee County, GA, Clarke County, GA, Clayton County, GA, Cobb County, GA, Coweta County, GA, Dade County, GA, Dawson County, GA, DeKalb County, GA, Douglas County, GA, Fannin County, GA, Fayette County, GA, Floyd County, GA, Forsyth County, GA, Fulton County, GA, Gilmer County, GA, Gordon County, GA, Greene County, GA, Gwinnett County, GA, Hall County, GA, Haralson County, GA, Harris County, GA, Heard County, GA, Henry County, GA, Jackson County, GA, Jasper County, GA, Lamar County, GA, Lumpkin County, GA, Madison County, GA, Meriwether County, GA, Monroe County, GA, Morgan County, GA, Murray County, GA, Muscogee County, GA, Newton County, GA, Oconee County, GA, Oglethorpe County, GA, Paulding County, GA, Pickens County, GA, Pike County, GA, Polk County, GA, Putnam County, GA, Rockdale County, GA, Spalding County, GA, Talbot County, GA, Taliaferro County, GA, Towns County, GA, Troup County, GA, Union County, GA, Upson County, GA, Walker County, GA, Walton County, GA, White County, GA, Whitfield County, GA, Wilkes County, GA

The radar

The Atlanta radar (KFFC), 63 km from the middle of the area, began a volume at 19:24 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 12:00Z, 7.4 hours before the alert went out and 60 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 2009-04-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLEL10008507005003002001001 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 2009-04-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -28 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
1 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
606 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
-28 m²/s²
0-3 km storm-relative helicity
27 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 201926
NPWFFC

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
326 PM EDT MON APR 20 2009

GAZ001>009-011>016-019>025-027-030>039-041>060-066>071-078-079-
089-210330-
/O.NEW.KFFC.WI.Y.0017.090421T1500Z-090421T2300Z/
DADE-WALKER-CATOOSA-WHITFIELD-MURRAY-FANNIN-GILMER-UNION-TOWNS-
CHATTOOGA-GORDON-PICKENS-DAWSON-LUMPKIN-WHITE-FLOYD-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-TROUP-MERIWETHER-PIKE-UPSON-
LAMAR-MONROE-HARRIS-TALBOT-MUSCOGEE-
INCLUDING THE CITIES OF...CALHOUN...DAHLONEGA...CLEVELAND...
ROME...CARTERSVILLE...GAINESVILLE...MARIETTA...ATLANTA...
LAWRENCEVILLE...ATHENS...CARROLLTON...DOUGLASVILLE...EAST POINT...
DECATUR...CONYERS...COVINGTON...NEWNAN...PEACHTREE CITY...
GRIFFIN...COLUMBUS
326 PM EDT MON APR 20 2009

...WIND ADVISORY IN EFFECT FROM 11 AM TO 7 PM EDT TUESDAY FOR MUCH
OF NORTH AND PARTS OF CENTRAL GEORGIA...

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 11 AM TO 7 PM EDT TUESDAY. THE
WIND ADVISORY IS IN EFFECT FOR AREAS GENERALLY ALONG AND NORTH OF
A LINE FROM COLUMBUS...TO THOMASTON...TO EATONTON...TO WASHINGTON.

A DEEP UPPER TROUGH WILL DEVELOP OVER THE EASTERN U.S. THROUGH
TUESDAY. SIMULTANEOUSLY...A DEEP SURFACE LOW WILL DEVELOP ACROSS
THE GREAT LAKES. AS A RESULT...GUSTY NORTHWEST WINDS OF 15 TO 25
MPH...WITH GUSTS TO 30 MPH...WILL DEVELOP INTO THE SOUTHEAST
STATES FROM LATE TUESDAY MORNING...AND CONTINUE INTO THE EARLY
EVENING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

19
4 follow-up statements
000 
WWUS72 KFFC 210748
NPWFFC

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
348 AM EDT TUE APR 21 2009

GAZ001>009-011>016-019>025-027-030>039-041>060-066>071-078-079-
089-211800-
/O.CON.KFFC.WI.Y.0017.090421T1500Z-090421T2300Z/
DADE-WALKER-CATOOSA-WHITFIELD-MURRAY-FANNIN-GILMER-UNION-TOWNS-
CHATTOOGA-GORDON-PICKENS-DAWSON-LUMPKIN-WHITE-FLOYD-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-TROUP-MERIWETHER-PIKE-UPSON-
LAMAR-MONROE-HARRIS-TALBOT-MUSCOGEE-
INCLUDING THE CITIES OF...CALHOUN...DAHLONEGA...CLEVELAND...
ROME...CARTERSVILLE...GAINESVILLE...MARIETTA...ATLANTA...
LAWRENCEVILLE...ATHENS...CARROLLTON...DOUGLASVILLE...EAST POINT...
DECATUR...CONYERS...COVINGTON...NEWNAN...PEACHTREE CITY...
GRIFFIN...COLUMBUS
348 AM EDT TUE APR 21 2009

...WIND ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
7 PM EDT THIS EVENING FOR MUCH OF NORTH AND PARTS OF CENTRAL GEORGIA...


A WIND ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 7 PM
EDT THIS EVENING...FOR AREAS GENERALLY LONG AND NORTH OF A LINE
FROM COLUMBUS...TO THOMASTON...TO EATONTON...TO WASHINGTON.

A DEEP UPPER TROUGH WILL DEVELOP OVER THE EASTERN U.S. TODAY.
SIMULTANEOUSLY...A DEEP SURFACE LOW WILL DEVELOP ACROSS THE GREAT
LAKES. AS A RESULT...GUSTY NORTHWEST WINDS OF 15 TO 25 MPH...WITH
GUSTS TO 30 MPH...WILL DEVELOP INTO THE SOUTHEAST STATES FROM LATE
THIS MORNING...AND CONTINUE INTO THE EARLY EVENING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$
000 
WWUS72 KFFC 211522
NPWFFC

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1122 AM EDT TUE APR 21 2009

GAZ001>009-011>016-019>025-027-030>039-041>060-066>071-078-079-
089-212300-
/O.CON.KFFC.WI.Y.0017.000000T0000Z-090421T2300Z/
DADE-WALKER-CATOOSA-WHITFIELD-MURRAY-FANNIN-GILMER-UNION-TOWNS-
CHATTOOGA-GORDON-PICKENS-DAWSON-LUMPKIN-WHITE-FLOYD-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-TROUP-MERIWETHER-PIKE-UPSON-
LAMAR-MONROE-HARRIS-TALBOT-MUSCOGEE-
INCLUDING THE CITIES OF...CALHOUN...DAHLONEGA...CLEVELAND...
ROME...CARTERSVILLE...GAINESVILLE...MARIETTA...ATLANTA...
LAWRENCEVILLE...ATHENS...CARROLLTON...DOUGLASVILLE...EAST POINT...
DECATUR...CONYERS...COVINGTON...NEWNAN...PEACHTREE CITY...
GRIFFIN...COLUMBUS
1122 AM EDT TUE APR 21 2009

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM EDT THIS EVENING...

A WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM EDT THIS EVENING...
FOR AREAS GENERALLY LONG AND NORTH OF A LINE FROM COLUMBUS...TO
THOMASTON...TO EATONTON...TO WASHINGTON.

GUSTY NORTHWEST WINDS OF 15 TO 25 MPH...WITH GUSTS TO 35 MPH WILL
DEVELOP INTO THE SOUTHEAST STATES FROM LATE THIS MORNING...AND
CONTINUE INTO THE EARLY EVENING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR
HIGH PROFILE VEHICLES. USE EXTRA CAUTION.

&&

$$
000 
WWUS72 KFFC 211524 CCA
NPWFFC

URGENT - WEATHER MESSAGE...CORRECTED
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1124 AM EDT TUE APR 21 2009

GAZ001>009-011>016-019>025-027-030>039-041>060-066>071-078-079-
089-212300-
/O.COR.KFFC.WI.Y.0017.000000T0000Z-090421T2300Z/
DADE-WALKER-CATOOSA-WHITFIELD-MURRAY-FANNIN-GILMER-UNION-TOWNS-
CHATTOOGA-GORDON-PICKENS-DAWSON-LUMPKIN-WHITE-FLOYD-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-TROUP-MERIWETHER-PIKE-UPSON-
LAMAR-MONROE-HARRIS-TALBOT-MUSCOGEE-
INCLUDING THE CITIES OF...CALHOUN...DAHLONEGA...CLEVELAND...
ROME...CARTERSVILLE...GAINESVILLE...MARIETTA...ATLANTA...
LAWRENCEVILLE...ATHENS...CARROLLTON...DOUGLASVILLE...EAST POINT...
DECATUR...CONYERS...COVINGTON...NEWNAN...PEACHTREE CITY...
GRIFFIN...COLUMBUS
1124 AM EDT TUE APR 21 2009

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM EDT THIS EVENING...

A WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM EDT THIS EVENING...
FOR AREAS GENERALLY LONG AND NORTH OF A LINE FROM COLUMBUS...TO
THOMASTON...TO EATONTON...TO WASHINGTON.

GUSTY WEST WINDS OF 15 TO 25 MPH...WITH GUSTS TO 35 MPH WILL
DEVELOP INTO THE SOUTHEAST STATES FROM LATE THIS MORNING...AND
CONTINUE INTO THE EARLY EVENING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR
HIGH PROFILE VEHICLES. USE EXTRA CAUTION.

&&

$$
000 
WWUS72 KFFC 212305
NPWFFC

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
705 PM EDT TUE APR 21 2009

GAZ001>009-011>016-019>025-027-030>039-041>060-066>071-078-079-
089-220015-
/O.EXP.KFFC.WI.Y.0017.000000T0000Z-090421T2300Z/
DADE-WALKER-CATOOSA-WHITFIELD-MURRAY-FANNIN-GILMER-UNION-TOWNS-
CHATTOOGA-GORDON-PICKENS-DAWSON-LUMPKIN-WHITE-FLOYD-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-TROUP-MERIWETHER-PIKE-UPSON-
LAMAR-MONROE-HARRIS-TALBOT-MUSCOGEE-
INCLUDING THE CITIES OF...CALHOUN...DAHLONEGA...CLEVELAND...
ROME...CARTERSVILLE...GAINESVILLE...MARIETTA...ATLANTA...
LAWRENCEVILLE...ATHENS...CARROLLTON...DOUGLASVILLE...EAST POINT...
DECATUR...CONYERS...COVINGTON...NEWNAN...PEACHTREE CITY...
GRIFFIN...COLUMBUS
705 PM EDT TUE APR 21 2009

...WIND ADVISORY HAS EXPIRED...

THE WIND ADVISORY THAT WAS IN EFFECT FOR NORTH AND PARTS OF
CENTRAL GEORGIA HAS EXPIRED. WEST WINDS WILL CONTINUE TO GUST TO
20 TO 25 MPH THROUGH 9 PM...HOWEVER THEY WILL DIMINISH TO 5 TO 10
MPH BY MIDNIGHT.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 19, 10:12 PM EDTSevere Thunderstorm WarningFFCChattooga, Dade, Walker63 min
Apr 19, 10:25 PM EDTTornado WarningFFCChattooga, Dade, Walker28 min
Apr 19, 10:33 PM EDTSevere Thunderstorm WarningFFCFloyd57 min
Apr 19, 10:40 PM EDTTornado WarningFFCCherokee, Cobb, Fulton34 min
Apr 19, 11:04 PM EDTTornado WarningFFCHarris, Muscogee71 min
Apr 19, 11:46 PM EDTSevere Thunderstorm WarningFFCCarroll, Haralson59 min
Apr 19, 11:51 PM EDTTornado WarningFFCChattahoochee, Harris, Marion, Muscogee, Talbot23 min
Apr 20, 12:07 AM EDTSevere Thunderstorm WarningFFCBanks, Dawson, Forsyth, Hall, Lumpkin, White53 min
Apr 20, 12:21 AM EDTTornado WarningFFCCarroll, Coweta, Douglas, Fulton54 min
Apr 20, 12:37 AM EDTTornado WarningFFCClayton, Cobb, Coweta, Douglas, Fayette, Fulton53 min

Nearby

Wind Advisories in Georgia, 2009Every wind advisory in 2009

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.