Alert archive / Georgia / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 4, NWS Atlanta, GA

January 7, 2009Chattahoochee County, Muscogee County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jan 7, 2009, 1:42 AM EST for Chattahoochee County, Muscogee County, Georgia. It was in force for 33 min. 1 report 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 7, 2009, 1:42 AM EST (06:42 UTC)
Expired: Jan 7, 2009, 2:15 AM EST
In force: 33 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon

Counties Chattahoochee County, GA, Muscogee County, GA

What was reported inside it

Time	Report	Where	Remark
Jan 7, 2:20 AM EST	TSTM WND DMG	Cusseta, GA	APPROX HALF DOZEN TREES DOWN ON HIGHWAY 26 NEAR MILE MARKER 8 BLOCKING THE ROAD.

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jan 6, 11:51 PM EST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 6.7 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: 41 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 1003 m above ground
0-6 km bulk shear: 89 kt
0-1 km storm-relative helicity: 406 m²/s²
0-3 km storm-relative helicity: 492 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 070642
SVRFFC
GAC053-215-070715-
/O.NEW.KFFC.SV.W.0004.090107T0642Z-090107T0715Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
142 AM EST WED JAN 7 2009

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CHATTAHOOCHEE COUNTY IN WEST CENTRAL GEORGIA
  SOUTHERN MUSCOGEE COUNTY IN WEST CENTRAL GEORGIA

* UNTIL 215 AM EST

* AT 140 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS UP TO 60
  MPH.  THIS STORM WAS LOCATED 11 MILES SOUTHWEST OF FORT BENNING...
  MOVING NORTHEAST AT 70 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO FORT
  BENNING SOUTH...CUSSETA AND MANTA.

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. 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...LARGE HAIL 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 3224 8492 3227 8490 3231 8494 3232 8498
      3234 8501 3236 8500 3238 8498 3244 8498
      3256 8472 3227 8465 3223 8492
TIME...MOT...LOC 0641Z 241DEG 59KT 3227 8504

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 6, 9:11 PM EST	Areal Flood Warning	FFC	Polk	10 hr
Jan 6, 10:42 PM EST	River Flood Warning	FFC	Floyd, Gordon	4 days
Jan 7, 1:54 AM EST	Severe Thunderstorm Warning	FFC	Chattahoochee, Stewart	36 min
Jan 7, 2:11 AM EST	Severe Thunderstorm Warning	FFC	Marion	34 min
Jan 7, 2:19 AM EST	Severe Thunderstorm Warning	FFC	Talbot, Taylor, Upson	26 min
Jan 7, 2:32 AM EST	Severe Thunderstorm Warning	FFC	Crawford, Taylor	43 min
Jan 7, 3:16 AM EST	Severe Thunderstorm Warning	FFC	Macon, Schley, Taylor	29 min
Jan 7, 3:21 AM EST	River Flood Warning	FFC	Floyd	33 hr
Jan 7, 3:56 AM EST	Wind Advisory	FFC	Baldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 90 more	18 hr
Jan 7, 5:17 AM EST	River Flood Warning	FFC	Gordon	22 hr
Jan 7, 9:12 AM EST	Areal Flood Warning	FFC	Catoosa, Chattooga, Floyd, Gordon, Murray, Walker and 1 more	23 hr
Jan 7, 11:35 AM EST	River Flood Warning	FFC	Clarke, Greene, Oconee	58 hr

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.