Alert archive / Georgia / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 2, NWS Atlanta, GA

January 6, 2009Chattooga County, Floyd County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jan 6, 2009, 4:41 PM EST for Chattooga County, Floyd County, Georgia. It was in force for 64 min. 4 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jan 6, 2009, 4:41 PM EST (21:41 UTC)
Expired: Jan 6, 2009, 5:45 PM EST
In force: 64 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon

Counties Chattooga County, GA, Floyd County, GA

The radar

The Northeast Alabama radar (KHTX), 108 km from the middle of the area, began a volume at 21:40 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

Time	Report	Where	Remark
Jan 6, 5:05 PM EST	TORNADO	2 S Holland, GA	COUNTY EMERGENCY MANAGER REPORTS A 30 TO 40 ACRE STAND OF TREES WAS FLATTENED ABOUT A HALF MILE TO THE EAST OF THE INTERSECTION OF STATE HIGHWAY 100 AND HOLLAND-CHATTOOGAVILLE ROAD. THIS EXTENDES THE PATH OF THE PREVIOUSLY REPORTED TORNADO TO ABOUT 2.5 MILES T
Jan 6, 5:05 PM EST	TORNADO	4 Ese Chattoogaville, GA	2 MILE TRACK OF SPOTTY TREE DAMAGE ALONG OLD HOLLAND ROAD AND STATE HIGHWAY 100 IN THE HOLLAND COMMUNITY. LIGHT TO MODERATE DAMAGE TO THE ROOFS OF 3 BUILDINGS AND SEVERAL OUT BUILDINGS. DAMAGE APPEARED TO BE CAUSED BY A COMBINATION OF STRAIGHT LINE WINDS AND A
Jan 6, 5:18 PM EST	TSTM WND DMG	Holland, GA	ON HIGHWAY 100 ROOF BLOWN OFF A HOUSE, POWER LINES AND TREES DOWN.
Jan 6, 5:30 PM EST	TSTM WND GST 61	Rome, GA	AT THE FLOYD MEDICAL CENTER

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, 9.7 hours before the alert went out and 122 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 40 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 473 m above ground
0-6 km bulk shear: 71 kt
0-1 km storm-relative helicity: 295 m²/s²
0-3 km storm-relative helicity: 391 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 
WUUS52 KFFC 062141
SVRFFC
GAC055-115-062245-
/O.NEW.KFFC.SV.W.0002.090106T2141Z-090106T2245Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
441 PM EST TUE JAN 6 2009

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CHATTOOGA COUNTY IN NORTHWEST GEORGIA
  FLOYD COUNTY IN NORTHWEST GEORGIA

* UNTIL 545 PM EST

* AT 436 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DESTRUCTIVE WINDS
  UP TO 70 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM 12 MILES WEST OF CHATTOOGAVILLE TO 19 MILES SOUTHWEST OF
  CHATTOOGAVILLE...MOVING EAST AT 40 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  BERRYTON...SUMMERVILLE...JAMES H. FLOYD STATE PARK...CAVE SPRING...
  TRION...ROME...LINDALE...EVERETT SPRINGS AND SHANNON.

THIS IS A DANGEROUS STORM. DOPPLER RADAR HAS INDICATED ROTATION 
WITHIN THIS STORM. ALTHOUGH CURRENT DATA DOES NOT INDICATE THE 
EXISTENCE OF A TORNADO...A TORNADO MAY STILL DEVELOP. IF A TORNADO 
IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY INSIDE A 
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

IF YOU SEE WIND DAMAGE OR SIGNIFICANT FLOODING...WAIT UNTIL THE 
STORM HAS PASSED...AND THEN CALL THE NATIONAL WEATHER SERVICE TOLL 
FREE AT 1 8 6 6 7 6 3 4 4 6 6.

LAT...LON 3459 8528 3458 8508 3454 8507 3451 8509
      3442 8511 3439 8501 3438 8500 3434 8502
      3422 8502 3422 8504 3411 8504 3409 8515
      3411 8516 3410 8526 3409 8526 3409 8542
      3448 8551
TIME...MOT...LOC 2140Z 253DEG 36KT 3436 8560 3420 8568

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 6, 6:45 AM EST	Areal Flood Warning	FFC	Forsyth	24 hr
Jan 6, 6:51 AM EST	River Flood Warning	FFC	Forsyth, Fulton	57 hr
Jan 6, 7:57 AM EST	River Flood Warning	FFC	Dawson, Forsyth	15 hr
Jan 6, 8:46 AM EST	Areal Flood Warning	FFC	Bartow, Chattooga, Cherokee, Floyd, Gilmer, Gordon and 1 more	24 hr
Jan 6, 9:40 AM EST	Areal Flood Warning	FFC	Banks, Dawson, Fannin, Hall, Lumpkin, Towns and 2 more	22 hr
Jan 6, 10:56 AM EST	River Flood Warning	FFC	Cherokee	33 hr
Jan 6, 12:20 PM EST	River Flood Warning	FFC	Polk	13 hr
Jan 6, 12:33 PM EST	River Flood Warning	FFC	Dade	47 hr
Jan 6, 12:46 PM EST	Areal Flood Warning	FFC	Catoosa, Murray, Walker, Whitfield	24 hr
Jan 6, 3:15 PM EST	Severe Thunderstorm Warning	FFC	Chattooga, Dade, Walker	45 min
Jan 6, 3:19 PM EST	Tornado Warning	FFC	Dade, Walker	17 min
Jan 6, 3:37 PM EST	River Flood Warning	FFC	Gilmer	15 hr
Jan 6, 4:55 PM EST	Tornado Warning	FFC	Chattooga, Floyd	50 min
Jan 6, 5:23 PM EST	Severe Thunderstorm Warning	FFC	Bartow, Gordon, Murray, Walker, Whitfield	52 min
Jan 6, 5:33 PM EST	River Flood Warning	FFC	Gordon, Murray, Whitfield	4 days

Nearby

Severe Thunderstorm Warnings in Georgia, 2009 Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.