Alert archive / Georgia / Wind Advisories in 2012
Wind Advisory 5, NWS Atlanta, GA
NWS Atlanta, GA issued this wind advisory at Feb 23, 2012, 2:53 PM EST for 12 counties in Georgia. It took effect at Feb 24, 2012, 9:00 AM EST. It was in force for 10 hr.
The area
The counties it named.
The facts
- Issued
- Feb 23, 2012, 2:53 PM EST (19:53 UTC)
- In effect from
- Feb 24, 2012, 9:00 AM EST
- Expired
- Feb 24, 2012, 7:00 PM EST
- In force
- 10 hr
- Issued by
- NWS Atlanta, GA
Counties Catoosa County, GA, Dade County, GA, Dawson County, GA, Fannin County, GA, Gilmer County, GA, Lumpkin County, GA, Murray County, GA, Towns County, GA, Union County, GA, Walker County, GA, White County, GA, Whitfield County, GA
The radar
The Northeast Alabama radar (KHTX), 145 km from the middle of the area, began a volume at 19:57 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, 7.9 hours before the alert went out and 154 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
- 340 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 481 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- 166 m²/s²
- 0-3 km storm-relative helicity
- 230 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 2.7
The text
As transmitted, in the capitals the NWS used until 2016.
171 WWUS72 KFFC 231953 NPWFFC URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE PEACHTREE CITY GA 253 PM EST THU FEB 23 2012 GAZ001>009-014>016-240400- /O.NEW.KFFC.WI.Y.0005.120224T1400Z-120225T0000Z/ DADE-WALKER-CATOOSA-WHITFIELD-MURRAY-FANNIN-GILMER-UNION-TOWNS- DAWSON-LUMPKIN-WHITE- INCLUDING THE CITIES OF...DAHLONEGA...CLEVELAND 253 PM EST THU FEB 23 2012 ...WIND ADVISORY IN EFFECT FROM 9 AM TO 7 PM EST FRIDAY... THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT FROM 9 AM TO 7 PM EST FRIDAY. * LOCATIONS...NORTH GEORGIA...ESPECIALLY HIGHER ELEVATIONS. * WINDS...WEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH. * TIMING...BEGINNING MID MORNING ON FRIDAY LASTING THROUGH EARLY FRIDAY EVENING. * IMPACTS...HIGHEST GUSTS WILL BE ALONG RIDGELINES IN THE MOUNTAINS. WEAK TREES AND TREE LIMBS MAY BE DOWNED BY THE WINDS. ISOLATED POWER OUTAGES MAY OCCUR. 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. && $$
4 follow-up statements
540 WWUS72 KFFC 240820 NPWFFC URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE PEACHTREE CITY GA 320 AM EST FRI FEB 24 2012 GAZ001>009-014>016-250500- /O.EXT.KFFC.WI.Y.0005.120224T1400Z-120225T0500Z/ DADE-WALKER-CATOOSA-WHITFIELD-MURRAY-FANNIN-GILMER-UNION-TOWNS- DAWSON-LUMPKIN-WHITE- INCLUDING THE CITIES OF...DAHLONEGA...CLEVELAND 320 AM EST FRI FEB 24 2012 ...WIND ADVISORY NOW IN EFFECT FROM 9 AM THIS MORNING TO MIDNIGHT EST TONIGHT... * LOCATIONS...NORTH GEORGIA...ESPECIALLY THE HIGHER ELEVATIONS. * WINDS...NORTHWEST 15 TO 25 MPH WITH GUSTS UP TO 40 MPH. * TIMING...BEGINNING MID MORNING TODAY AND LASTING THROUGH THE LATE EVENING HOURS. * IMPACTS...HIGHEST GUSTS WILL BE ALONG RIDGE-LINES IN THE MOUNTAINS. WEAK TREES AND TREE LIMBS MAY BE DOWNED BY THE WINDS. ISOLATED POWER OUTAGES MAY OCCUR. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT SUSTAINED WIND SPEEDS OF AT LEAST 20 MPH...OR GUSTS TO 35 MPH OR STRONGER ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT... ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$
993 WWUS72 KFFC 241751 AAA NPWFFC URGENT - WEATHER MESSAGE...UPDATED NATIONAL WEATHER SERVICE PEACHTREE CITY GA 1251 PM EST FRI FEB 24 2012 GAZ001>009-014>016-250200- /O.CON.KFFC.WI.Y.0005.000000T0000Z-120225T0500Z/ DADE-WALKER-CATOOSA-WHITFIELD-MURRAY-FANNIN-GILMER-UNION-TOWNS- DAWSON-LUMPKIN-WHITE- INCLUDING THE CITIES OF...DAHLONEGA...CLEVELAND 1251 PM EST FRI FEB 24 2012 ...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT... * LOCATIONS...NORTH GEORGIA...ESPECIALLY THE HIGHER ELEVATIONS. * WINDS...NORTHWEST 10 TO 20 MPH WITH GUSTS UP TO 35 MPH. * TIMING...THROUGH THE LATE EVENING HOURS. * IMPACTS...HIGHEST GUSTS WILL BE ALONG RIDGE-LINES IN THE MOUNTAINS. WEAK TREES AND TREE LIMBS MAY BE DOWNED BY THE WINDS. ISOLATED POWER OUTAGES MAY OCCUR. 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. && $$
865 WWUS72 KFFC 242150 NPWFFC URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE PEACHTREE CITY GA 450 PM EST FRI FEB 24 2012 GAZ001>009-014>016-250000- /O.EXT.KFFC.WI.Y.0005.000000T0000Z-120225T0000Z/ DADE-WALKER-CATOOSA-WHITFIELD-MURRAY-FANNIN-GILMER-UNION-TOWNS- DAWSON-LUMPKIN-WHITE- INCLUDING THE CITIES OF...DAHLONEGA...CLEVELAND 450 PM EST FRI FEB 24 2012 ...WIND ADVISORY NOW IN EFFECT UNTIL 7 PM EST THIS EVENING... * LOCATIONS...NORTH GEORGIA...ESPECIALLY THE HIGHER ELEVATIONS. * WINDS...NORTHWEST 15 TO 20 MPH WITH GUSTS UP TO 35 MPH. * TIMING...THROUGH THE LATE EVENING HOURS. * IMPACTS...HIGHEST GUSTS WILL BE ALONG RIDGE-LINES IN THE MOUNTAINS. WEAK TREES AND TREE LIMBS MAY BE DOWNED BY THE WINDS. ISOLATED POWER OUTAGES MAY OCCUR. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT SUSTAINED WIND SPEEDS OF AT LEAST 20 MPH...OR GUSTS TO 35 MPH OR STRONGER ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT... ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$
782 WWUS72 KFFC 250024 NPWFFC URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE PEACHTREE CITY GA 724 PM EST FRI FEB 24 2012 GAZ001>009-014>016-250130- /O.EXP.KFFC.WI.Y.0005.000000T0000Z-120225T0000Z/ DADE-WALKER-CATOOSA-WHITFIELD-MURRAY-FANNIN-GILMER-UNION-TOWNS- DAWSON-LUMPKIN-WHITE- INCLUDING THE CITIES OF...DAHLONEGA...CLEVELAND 724 PM EST FRI FEB 24 2012 ...WIND ADVISORY HAS EXPIRED... WINDS HAVE DIMINISHED BELOW ADVISORY CRITERIA...HOWEVER WINDS SHOULD REMAIN AROUND 10 TO 15 MPH WITH SOME HIGHER GUSTS UNTIL AFTER MIDNIGHT. $$
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 22, 7:44 PM EST | Special Weather Statement | FFC | Dade | 46 min |
| Feb 22, 8:15 PM EST | Special Weather Statement | FFC | Catoosa | 30 min |
| Feb 22, 8:24 PM EST | Special Weather Statement | FFC | Walker | 51 min |
| Feb 22, 9:19 PM EST | Special Weather Statement | FFC | Walker, Whitfield | 26 min |
| Feb 22, 9:41 PM EST | Special Weather Statement | FFC | Floyd | 34 min |
| Feb 22, 9:53 PM EST | Severe Thunderstorm Warning | FFC | Floyd, Polk | 37 min |
| Feb 22, 10:36 PM EST | Special Weather Statement | FFC | Bartow, Cherokee, Pickens | 24 min |
| Feb 22, 11:10 PM EST | Special Weather Statement | FFC | Cobb | 35 min |
| Feb 22, 11:24 PM EST | Special Weather Statement | FFC | Barrow, Forsyth, Hall | 36 min |
| Feb 22, 11:32 PM EST | Severe Thunderstorm Warning | FFC | Hall, Jackson | 28 min |
| Feb 22, 11:52 PM EST | Severe Thunderstorm Warning | FFC | Barrow, Clarke, Hall, Jackson, Madison | 23 min |
| Feb 23, 12:09 AM EST | Severe Thunderstorm Warning | FFC | Clarke, Jackson, Madison, Oglethorpe | 36 min |
| Feb 23, 12:46 AM EST | Special Weather Statement | FFC | Oglethorpe, Wilkes | 29 min |
| Feb 23, 12:58 AM EST | Special Weather Statement | FFC | Lumpkin, White | 32 min |
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.