Alert archive / Georgia / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 101, NWS Atlanta, GA

April 3, 2009Carroll County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Apr 3, 2009, 12:49 AM EDT for Carroll County, Georgia. It was in force for 26 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 3, 2009, 12:49 AM EDT (04:49 UTC)
Expired: Apr 3, 2009, 1:15 AM EDT
In force: 26 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon

County Carroll County, GA

The radar

The Atlanta radar (KFFC), 49 km from the middle of the area, began a volume at 04:49 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 watch it was issued in

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

Issued	Product	Office	Lasted
Apr 2, 7:02 PM EDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 4.8 hours before the alert went out and 54 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: 11 J/kg
Mixed-layer CIN: -68 J/kg
Mixed-layer LCL: 590 m above ground
0-6 km bulk shear: 83 kt
0-1 km storm-relative helicity: 356 m²/s²
0-3 km storm-relative helicity: 483 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 030449
SVRFFC
GAC045-030515-
/O.NEW.KFFC.SV.W.0101.090403T0449Z-090403T0515Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1249 AM EDT FRI APR 3 2009

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CARROLL COUNTY IN NORTHWEST GEORGIA

* UNTIL 115 AM EDT

* AT 1246 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS UP
  TO 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 8
  MILES NORTH OF CARROLLTON TO 7 MILES WEST OF ROOPVILLE...MOVING    
  EAST AT 45 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO VILLA
  RICA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM EDT FRIDAY MORNING FOR
NORTHWESTERN GEORGIA.

A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL 700 AM EDT
FRIDAY MORNING FOR NORTHERN GEORGIA.

&&

LAT...LON 3373 8491 3356 8491 3355 8483 3344 8502
      3344 8528 3356 8520 3368 8511
TIME...MOT...LOC 0449Z 261DEG 43KT 3370 8501 3358 8507
          3344 8521

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 2, 8:19 PM EDT	Areal Flood Warning	FFC	Johnson	12 hr
Apr 2, 11:58 PM EDT	Severe Thunderstorm Warning	FFC	Chattooga, Floyd, Haralson, Polk	54 min
Apr 3, 12:55 AM EDT	Severe Thunderstorm Warning	FFC	Heard	50 min
Apr 3, 12:59 AM EDT	Areal Flood Warning	FFC	Jefferson, Washington	12 hr
Apr 3, 1:39 AM EDT	River Flood Warning	FFC	Washington, Wilkinson	28 hr
Apr 3, 2:03 AM EDT	Areal Flood Warning	FFC	Taliaferro, Warren, Wilkes	11 hr
Apr 3, 11:53 AM EDT	River Flood Warning	FFC	Pulaski	30 hr
Apr 3, 11:53 AM EDT	River Flood Warning	FFC	Jefferson, Washington	6 hr
Apr 3, 11:53 AM EDT	River Flood Warning	FFC	Dooly	9 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.