Alert archive / Georgia / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 312, NWS Atlanta, GA

July 25, 2007Henry County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 25, 2007, 9:55 PM EDT for Henry County, Georgia. It was in force for 35 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: Jul 25, 2007, 9:55 PM EDT (01:55 UTC)
Expired: Jul 25, 2007, 10:30 PM EDT
In force: 35 min
Issued by: NWS Atlanta, GA
Area: Counties, with a storm outline in the text

County Henry County, GA

The radar

The Atlanta radar (KFFC), 45 km from the middle of the area, began a volume at 01:55 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 00:00Z, 1.9 hours before the alert went out and 39 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2153 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 13 m²/s²
0-3 km storm-relative helicity: -1 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 260155
SVRFFC
GAC151-260230-
/O.NEW.KFFC.SV.W.0312.070726T0155Z-070726T0230Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
955 PM EDT WED JUL 25 2007

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

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

* UNTIL 1030 PM EDT

* AT 951 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZED HAIL...AND    
  DAMAGING WINDS UP TO 60 MPH.  THIS STORM WAS LOCATED 4 MILES EAST  
  OF STOCKBRIDGE...MOVING SOUTH AT 5 MPH.

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

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

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 3354 8405 3361 8418 3346 8425 3345 8407

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 25, 9:42 PM EDT	Severe Thunderstorm Warning	FFC	DeKalb, Rockdale	33 min
Jul 26, 3:28 PM EDT	Severe Thunderstorm Warning	FFC	Crawford	47 min
Jul 26, 4:01 PM EDT	Severe Thunderstorm Warning	FFC	Meriwether	44 min
Jul 26, 5:01 PM EDT	Severe Thunderstorm Warning	FFC	Paulding	29 min
Jul 26, 5:14 PM EDT	Severe Thunderstorm Warning	FFC	Cobb	38 min
Jul 26, 5:38 PM EDT	Severe Thunderstorm Warning	FFC	Butts	37 min
Jul 26, 6:22 PM EDT	Severe Thunderstorm Warning	FFC	Jasper	38 min
Jul 26, 7:21 PM EDT	Severe Thunderstorm Warning	FFC	Laurens	39 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2007 Every severe thunderstorm warning in 2007

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.