Alert archive / Georgia / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 21, NWS Atlanta, GA

March 28, 2010Hancock County, Warren County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Mar 28, 2010, 8:47 PM EDT for Hancock County, Warren County, Georgia. It was in force for 28 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: Mar 28, 2010, 8:47 PM EDT (00:47 UTC)
Expired: Mar 28, 2010, 9:15 PM EDT
In force: 28 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon

Counties Hancock County, GA, Warren County, GA

The radar

The Robins AFB radar (KJGX), 74 km from the middle of the area, began a volume at 00:47 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
Mar 28, 3:47 PM EDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 0.8 hours before the alert went out and 146 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: 170 J/kg
Mixed-layer CIN: -19 J/kg
Mixed-layer LCL: 1532 m above ground
0-6 km bulk shear: 79 kt
0-1 km storm-relative helicity: 132 m²/s²
0-3 km storm-relative helicity: 163 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

555 
WUUS52 KFFC 290047
SVRFFC
GAC141-301-290115-
/O.NEW.KFFC.SV.W.0021.100329T0047Z-100329T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
847 PM EDT SUN MAR 28 2010

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN HANCOCK COUNTY IN EAST CENTRAL GEORGIA
  EXTREME SOUTHWESTERN WARREN COUNTY IN EAST CENTRAL GEORGIA

* UNTIL 915 PM EDT

* AT 842 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZED HAIL...AND
  DAMAGING WINDS UP TO 60 MPH.  THIS STORM WAS LOCATED 6 MILES SOUTH
  OF SPARTA...MOVING NORTHEAST AT 35 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  CULVERTON AND SHOALS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3316 8300 3321 8305 3340 8287 3325 8275
TIME...MOT...LOC 0047Z 238DEG 29KT 3321 8295

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 28, 8:09 PM EDT	Severe Thunderstorm Warning	FFC	Glascock, Hancock, Warren	66 min
Mar 28, 8:12 PM EDT	Tornado Warning	FFC	Glascock, Hancock, Warren, Washington	48 min
Mar 28, 8:42 PM EDT	Tornado Warning	FFC	Glascock, Warren	48 min
Mar 28, 8:54 PM EDT	Severe Thunderstorm Warning	FFC	Greene, Putnam	51 min
Mar 28, 9:06 PM EDT	Severe Thunderstorm Warning	FFC	Baldwin, Jones, Putnam	41 min
Mar 28, 9:16 PM EDT	Severe Thunderstorm Warning	FFC	Glascock, Warren	29 min
Mar 28, 9:32 PM EDT	Severe Thunderstorm Warning	FFC	Baldwin, Hancock, Putnam	58 min
Mar 28, 9:41 PM EDT	Tornado Warning	FFC	Hancock	49 min
Mar 28, 10:06 PM EDT	Tornado Warning	FFC	Hancock, Warren	39 min
Mar 28, 10:14 PM EDT	Severe Thunderstorm Warning	FFC	Bibb, Jones	31 min
Mar 28, 10:31 PM EDT	Severe Thunderstorm Warning	FFC	Greene, Hancock, Taliaferro, Warren, Wilkes	59 min
Mar 28, 10:40 PM EDT	Severe Thunderstorm Warning	FFC	Baldwin, Greene, Hancock, Putnam	50 min
Mar 28, 11:13 PM EDT	Severe Thunderstorm Warning	FFC	Hancock, Warren	47 min
Mar 29, 3:48 PM EDT	Fire Weather Watch	FFC	Baldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 90 more	23 hr

Nearby

Severe Thunderstorm Warnings in Georgia, 2010 Every severe thunderstorm warning in 2010

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.