Alert archive / Georgia / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 188, NWS Atlanta, GA

August 5, 2004Clarke County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Aug 5, 2004, 2:49 PM EDT for Clarke County, Georgia. It was in force for 26 min. 2 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: Aug 5, 2004, 2:49 PM EDT (18:49 UTC)
Expired: Aug 5, 2004, 3:15 PM EDT
In force: 26 min
Issued by: NWS Atlanta, GA
Area: Counties, with a storm outline in the text

County Clarke County, GA

The radar

The Atlanta radar (KFFC), 129 km from the middle of the area, began a volume at 18:51 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
Aug 5, 3:10 PM EDT	TSTM WND DMG	Athens, GA	MANY TREES DOWN ACROSS CITY. POWER LINES ALSO REPORTED DOWN. ONE TREE FELL ON HOUSE.
Aug 5, 3:10 PM EDT	TSTM WND DMG	Athens, GA	MANY TREES DOWN ACROSS CITY. POWER LINES ALSO REPORTED DOWN. ONE TREE FELL ON HOUSE.

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, 6.8 hours before the alert went out and 124 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: 245 J/kg
Mixed-layer CIN: -78 J/kg
Mixed-layer LCL: 1309 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 69 m²/s²
0-3 km storm-relative helicity: 31 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 051849
SVRATL
GAC059-051915-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
247 PM EDT THU AUG 5 2004

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

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

* UNTIL 315 PM EDT

  60 MPH WINDS WILL LIKELY CAUSE SOME PROPERTY DAMAGE.

* AT 245 PM EDT... A DANGEROUS SEVERE THUNDERSTORM WAS LOCATED       
  NORTHWEST OF ATHENS...MOVING SOUTHEAST AT 35 MPH.

* LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...ATHENS...
WHITEHALL AND WINTERVILLE.

THIS IS A VERY DANGEROUS STORM IF YOU ARE NEAR ITS PATH YOU SHOULD 
PREPARE FOR HAIL AND VIOLENT STRAIGHT LINE WINDS. IF NO UNDERGROUND 
SHELTER IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF A STURDY 
BUILDING AND STAY AWAY FROM WINDOWS

SEVERE THUNDERSTORM WINDS CAN BE AS DESTRUCTIVE AS A TORNADO. FOR
YOUR SAFETY...GO TO A SAFE PLACE IMMEDIATELY.

IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT
UNTIL AFTER 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 3405 8342 3396 8353 3385 8330 3399 8324

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 5, 2:09 PM EDT	Severe Thunderstorm Warning	FFC	Banks	36 min
Aug 5, 2:24 PM EDT	Severe Thunderstorm Warning	FFC	Jackson	36 min
Aug 5, 3:20 PM EDT	Severe Thunderstorm Warning	FFC	Oglethorpe	25 min
Aug 5, 3:54 PM EDT	Severe Thunderstorm Warning	FFC	Greene	36 min
Aug 5, 4:13 PM EDT	Severe Thunderstorm Warning	FFC	Cobb	32 min
Aug 5, 6:38 PM EDT	Flash Flood Warning	FFC	Cobb	2 hr

Nearby

Severe Thunderstorm Warnings in Georgia, 2004 Every severe thunderstorm warning in 2004

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.