Alert archive / Georgia / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 421, NWS Atlanta, GA

September 28, 2006Banks County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Sep 28, 2006, 2:45 PM EDT for Banks County, Georgia. It was in force for 30 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: Sep 28, 2006, 2:45 PM EDT (18:45 UTC)
Expired: Sep 28, 2006, 3:15 PM EDT
In force: 30 min
Issued by: NWS Atlanta, GA
Area: Counties, with a storm outline in the text

County Banks County, GA

The radar

The Greer radar (KGSP), 130 km from the middle of the area, began a volume at 18:47 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 nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 6.8 hours before the alert went out and 149 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: 5 J/kg
Mixed-layer CIN: -220 J/kg
Mixed-layer LCL: 1826 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 28 m²/s²
0-3 km storm-relative helicity: 43 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 281846
SVRFFC
GAC011-281915-
/O.NEW.KFFC.SV.W.0421.060928T1845Z-060928T1915Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
245 PM EDT THU SEP 28 2006

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BANKS COUNTY IN NORTHEAST GEORGIA

* UNTIL 315 PM EDT

* AT 242 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZED HAIL. THIS
  STORM WAS LOCATED NEAR HOLLINGSWORTH...MOVING EAST AT 45 MPH.

* THE SEVERE THUNDERSTORM WILL OTHERWISE REMAIN OVER MAINLY RURAL
  AREAS OF THE INDICATED COUNTY.

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 3450 8363 3437 8360 3439 8340 3449 8342

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 28, 2:28 PM EDT	Severe Thunderstorm Warning	FFC	Bartow	22 min
Sep 28, 2:40 PM EDT	Severe Thunderstorm Warning	FFC	Cherokee	35 min
Sep 28, 2:55 PM EDT	Severe Thunderstorm Warning	FFC	Fulton	35 min
Sep 28, 3:10 PM EDT	Severe Thunderstorm Warning	FFC	Forsyth	35 min
Sep 28, 3:21 PM EDT	Severe Thunderstorm Warning	FFC	Gwinnett, Hall	30 min
Sep 28, 5:02 PM EDT	Severe Thunderstorm Warning	FFC	Cherokee	13 min
Sep 28, 5:04 PM EDT	Severe Thunderstorm Warning	FFC	Cobb, Douglas	11 min
Sep 28, 5:09 PM EDT	Severe Thunderstorm Warning	FFC	Fulton	23 min
Sep 28, 5:22 PM EDT	Severe Thunderstorm Warning	FFC	DeKalb	23 min
Sep 28, 6:13 PM EDT	Severe Thunderstorm Warning	FFC	Troup	19 min
Sep 28, 6:27 PM EDT	Severe Thunderstorm Warning	FFC	Meriwether	33 min
Sep 28, 7:01 PM EDT	Severe Thunderstorm Warning	FFC	Spalding	29 min
Sep 28, 7:14 PM EDT	Severe Thunderstorm Warning	FFC	Henry	31 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2006 Every severe thunderstorm warning in 2006

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.