Alert archive / Georgia / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 232, NWS Atlanta, GA

July 11, 2000Henry County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 11, 2000, 4:45 PM EDT for Henry County, Georgia. It was in force for 45 min. 2 reports came from inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.

The facts

Issued: Jul 11, 2000, 4:45 PM EDT (20:45 UTC)
Expired: Jul 11, 2000, 5:30 PM EDT
In force: 45 min
Issued by: NWS Atlanta, GA
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Henry County, GA

The radar

The Atlanta radar (KFFC), 43 km from the middle of the area, began a volume at 20:46 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
Jul 11, 4:54 PM EDT	Hail 0.88	Mc Donough, GA	The public reported nickel size hail.
Jul 11, 5:30 PM EDT	Thunderstorm Wind	Locust Grove, GA	The public reported a 50 foot pine tree was broken off about 20 feet above the ground. A dogwood tree was also blown down and several other tree limbs were reported down on the same property.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 8.8 hours before the alert went out and 37 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: 1460 J/kg
Mixed-layer CIN: -88 J/kg
Mixed-layer LCL: 1095 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 32 m²/s²
0-3 km storm-relative helicity: 26 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 112045
SVRATL
GAC151-112130-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
445 PM EDT TUE JUL 11 2000

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  HENRY COUNTY IN NORTH CENTRAL GEORGIA

* UNTIL 530 PM EDT

* AT 440 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 5 MILES NORTHEAST OF LOCUST GROVE...OR ABOUT 7
  MILES SOUTHEAST OF MCDONOUGH...MOVING EAST AT 20 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE MCDONOUGH AND BLACKSVILLE

DAMAGING WINDS AND TORRENTIAL RAINS ARE LIKELY. GO INSIDE A STURDY
BUILDING AND STAY AWAY FROM WINDOWS.

INTENSE LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS AND STAY
AWAY FROM WINDOWS. DO NOT USE TELEPHONES OR ELECTRICAL APPLIANCES.

IF YOU SEE DAMAGE OR LARGE HAIL...CALL THE NATIONAL WEATHER SERVICE
AT 7 7 0 4 8 6 1 1 3 3 AT EXeTENSION 2 0 4.

LAT...LON 3341 8419 3331 8411 3343 8396 3353 8409

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 11, 1:19 PM EDT	Severe Thunderstorm Warning	FFC	Peach	26 min
Jul 11, 1:59 PM EDT	Severe Thunderstorm Warning	FFC	Houston, Peach	31 min
Jul 11, 2:15 PM EDT	Severe Thunderstorm Warning	FFC	Dooly	30 min
Jul 11, 2:29 PM EDT	Severe Thunderstorm Warning	FFC	Pulaski	31 min
Jul 11, 3:22 PM EDT	Severe Thunderstorm Warning	FFC	Crisp, Dooly, Sumter	38 min
Jul 11, 4:22 PM EDT	Severe Thunderstorm Warning	FFC	Telfair	23 min
Jul 11, 4:57 PM EDT	Severe Thunderstorm Warning	FFC	Baldwin, Washington	48 min
Jul 11, 5:02 PM EDT	Severe Thunderstorm Warning	FFC	Newton	28 min
Jul 11, 5:15 PM EDT	Severe Thunderstorm Warning	FFC	Johnson	40 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2000 Every severe thunderstorm warning in 2000

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.