Alert archive / Georgia / Wind Advisories in 2009
Wind Advisory 27, NWS Atlanta, GA
NWS Atlanta, GA issued this wind advisory at Dec 25, 2009, 7:13 AM EST for 19 counties in Georgia. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- Dec 25, 2009, 7:13 AM EST (12:13 UTC)
- Expired
- Dec 25, 2009, 3:09 PM EST
- In force
- 8 hr
- Issued by
- NWS Atlanta, GA
Counties Bartow County, GA, Catoosa County, GA, Chattooga County, GA, Cherokee County, GA, Dade County, GA, Dawson County, GA, Fannin County, GA, Floyd County, GA, Gilmer County, GA, Gordon County, GA, Lumpkin County, GA, Murray County, GA, Pickens County, GA, Polk County, GA, Towns County, GA, Union County, GA, Walker County, GA, White County, GA, Whitfield County, GA
The radar
The Northeast Alabama radar (KHTX), 136 km from the middle of the area, began a volume at 12:17 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, 0.2 hours before the alert went out and 137 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 873 m above ground
- 0-6 km bulk shear
- 67 kt
- 0-1 km storm-relative helicity
- 95 m²/s²
- 0-3 km storm-relative helicity
- 161 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS72 KFFC 251213 NPWFFC URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE PEACHTREE CITY GA 713 AM EST FRI DEC 25 2009 GAZ001>009-011>016-019>021-252015- /O.EXP.KFFC.HW.W.0006.000000T0000Z-091225T1200Z/ /O.NEW.KFFC.WI.Y.0027.091225T1213Z-091225T2300Z/ DADE-WALKER-CATOOSA-WHITFIELD-MURRAY-FANNIN-GILMER-UNION-TOWNS- CHATTOOGA-GORDON-PICKENS-DAWSON-LUMPKIN-WHITE-FLOYD-BARTOW- CHEROKEE- INCLUDING THE CITIES OF...CALHOUN...DAHLONEGA...CLEVELAND... ROME...CARTERSVILLE 713 AM EST FRI DEC 25 2009 ...WIND ADVISORY IN EFFECT UNTIL 6 PM EST THIS EVENING... ...HIGH WIND WARNING HAS EXPIRED... THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT UNTIL 6 PM EST THIS EVENING. THE HIGH WIND WARNING IS NO LONGER IN EFFECT. A COLD FRONT WILL SWEEP ACROSS THE AREA THIS MORNING. BEHIND THE FRONT... A LARGE DOME OF HIGH PRESSURE WILL BEGIN TO BUILD IN FROM THE WEST. AS A RESULT...WINDS WILL INCREASE FROM THE WEST AT 25 TO 30 MPH WITH GUSTS OF 35 TO 40 MPH POSSIBLE. THE STRONG WINDS WILL BEGIN TO DIMINISH TOWARDS SUNSET AS THE RIDGE OF HIGH PRESSURE BEGINS TO SETTLE IN OVER THE AREA. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT SUSTAINED WIND SPEEDS OF AT LEAST 20 MPH...OR GUSTS TO 35 MPH OR STRONGER ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$ GAZ030-252015- /O.EXP.KFFC.WI.Y.0026.000000T0000Z-091225T1200Z/ /O.NEW.KFFC.WI.Y.0027.091225T1213Z-091225T2300Z/ POLK- 713 AM EST FRI DEC 25 2009 ...WIND ADVISORY IN EFFECT UNTIL 6 PM EST THIS EVENING... ...WIND ADVISORY HAS EXPIRED... THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT UNTIL 6 PM EST THIS EVENING. THE WIND ADVISORY IS NO LONGER IN EFFECT. A COLD FRONT WILL SWEEP ACROSS THE AREA THIS MORNING. BEHIND THE FRONT... A LARGE DOME OF HIGH PRESSURE WILL BEGIN TO BUILD IN FROM THE WEST. AS A RESULT...WINDS WILL INCREASE FROM THE WEST AT 25 TO 30 MPH WITH GUSTS OF 35 TO 40 MPH POSSIBLE. THE STRONG WINDS WILL BEGIN TO DIMINISH TOWARDS SUNSET AS THE RIDGE OF HIGH PRESSURE BEGINS TO SETTLE IN OVER THE AREA. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT SUSTAINED WIND SPEEDS OF AT LEAST 20 MPH...OR GUSTS TO 35 MPH OR STRONGER ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$ GAZ022>025-027-031>039-041>062-066>076-078>086-089>098-102>113- 251315- /O.EXP.KFFC.WI.Y.0026.000000T0000Z-091225T1200Z/ FORSYTH-HALL-BANKS-JACKSON-MADISON-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...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 713 AM EST FRI DEC 25 2009 ...WIND ADVISORY HAS EXPIRED... THE WIND ADVISORY HAS BEEN ALLOWED TO EXPIRE...AND IS NO LONGER IN EFFECT. A TROUGH OF LOW PRESSURE HAS MOVED OVER THE AREA AND RELAXED THE PRESSURE GRADIENT. AS A RESULT...THE WINDS HAVE DIMINISHED BELOW ADVISORY CRITERIA. LATER TODAY...BEHIND A COLD FRONT... A LARGE DOME OF HIGH PRESSURE WILL BEGIN TO BUILD IN FROM THE WEST. AS A RESULT...WINDS WILL INCREASE FROM THE WEST AT 15 TO 25 MPH WITH SOME HIGHER GUSTS. AT THIS TIME... WINDS ARE EXPECTED TO REMAIN BELOW ADVISORY CRITERIA. $$
1 follow-up statement
000 WWUS72 KFFC 252009 NPWFFC URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE PEACHTREE CITY GA 309 PM EST FRI DEC 25 2009 GAZ001>009-011>016-019>021-030-252115- /O.CAN.KFFC.WI.Y.0027.000000T0000Z-091225T2300Z/ DADE-WALKER-CATOOSA-WHITFIELD-MURRAY-FANNIN-GILMER-UNION-TOWNS- CHATTOOGA-GORDON-PICKENS-DAWSON-LUMPKIN-WHITE-FLOYD-BARTOW- CHEROKEE-POLK- INCLUDING THE CITIES OF...CALHOUN...DAHLONEGA...CLEVELAND... ROME...CARTERSVILLE 309 PM EST FRI DEC 25 2009 ...WIND ADVISORY IS CANCELLED... THE PRESSURE GRADIENT HAS RELAXED ACROSS NORTH GEORGIA ALLOWING THE STRONG GUSTY WINDS TO SUBSIDE. THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS CANCELLED THE WIND ADVISORY. $$
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 25, 4:49 AM EST | River Flood Warning | FFC | Forsyth, Fulton | 42 hr |
| Dec 25, 5:09 AM EST | River Flood Warning | FFC | DeKalb, Fulton | 3 hr |
| Dec 25, 5:29 AM EST | Severe Thunderstorm Warning | FFC | Laurens, Montgomery, Telfair, Treutlen, Wheeler | 46 min |
| Dec 25, 7:56 AM EST | River Flood Warning | FFC | Gwinnett, Walton | 6 hr |
| Dec 25, 7:56 AM EST | River Flood Warning | FFC | Clarke, Greene, Oconee | 3 days |
| Dec 25, 11:48 AM EST | River Flood Warning | FFC | Bibb, Houston, Jones, Monroe, Twiggs | 3 days |
| Dec 25, 11:48 AM EST | River Flood Warning | FFC | Carroll, Coweta, Heard | 15 hr |
| Dec 25, 11:48 AM EST | River Flood Warning | FFC | Newton, Rockdale | 35 hr |
| Dec 25, 2:34 PM EST | River Flood Warning | FFC | Gwinnett | 12 hr |
Nearby
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.