Alert archive / Georgia / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 260, NWS Atlanta, GA

July 1, 2007Cherokee County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 1, 2007, 3:53 PM EDT for Cherokee County, Georgia. It was in force for 52 min. 1 report 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
Jul 1, 2007, 3:53 PM EDT (19:53 UTC)
Expired
Jul 1, 2007, 4:45 PM EDT
In force
52 min
Issued by
NWS Atlanta, GA
Area
Counties, with a storm outline in the text

County Cherokee County, GA

The radar

The Atlanta radar (KFFC), 91 km from the middle of the area, began a volume at 19:54 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

TimeReportWhereRemark
Jul 1, 4:05 PM EDTTSTM WND DMG6 Wnw Woodstock, GAEMA REPORTED POWER LINES DOWN NEAR LAKE ALLATOONA.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jul 1, 1:10 PM EDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 7.9 hours before the alert went out and 90 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-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 12:00Z on 2007-07-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 34 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 12:00Z on 2007-07-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 18 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
34 J/kg
Mixed-layer CIN
-220 J/kg
Mixed-layer LCL
1436 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
30 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 011953
SVRFFC
GAC057-012045-
/O.NEW.KFFC.SV.W.0260.070701T1953Z-070701T2045Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
353 PM EDT SUN JUL 1 2007

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN CHEROKEE COUNTY IN NORTH CENTRAL GEORGIA

* UNTIL 445 PM EDT

* AT 349 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZED HAIL...AND
  DAMAGING WINDS UP TO 60 MPH.  THIS STORM WAS LOCATED NEAR
  CHEROKEE...MOVING SOUTHEAST AT 5 MPH.

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

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 3428 8464 3410 8464 3409 8445 3416 8437

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 30, 9:54 PM EDTSevere Thunderstorm WarningFFCClayton, Fulton36 min
Jun 30, 10:27 PM EDTSevere Thunderstorm WarningFFCClayton, Fayette48 min
Jul 1, 12:52 PM EDTSevere Thunderstorm WarningFFCDawson, Lumpkin23 min
Jul 1, 1:13 PM EDTSevere Thunderstorm WarningFFCDawson47 min
Jul 1, 1:22 PM EDTSevere Thunderstorm WarningFFCForsyth, Hall53 min
Jul 1, 2:45 PM EDTSevere Thunderstorm WarningFFCJackson60 min
Jul 1, 2:58 PM EDTSevere Thunderstorm WarningFFCBartow62 min
Jul 1, 3:37 PM EDTSevere Thunderstorm WarningFFCDodge23 min
Jul 1, 4:48 PM EDTSevere Thunderstorm WarningFFCGlascock27 min
Jul 1, 5:07 PM EDTSevere Thunderstorm WarningFFCJefferson38 min
Jul 1, 5:40 PM EDTSevere Thunderstorm WarningFFCJefferson, Washington50 min
Jul 1, 5:50 PM EDTSevere Thunderstorm WarningFFCClayton20 min
Jul 1, 6:22 PM EDTSevere Thunderstorm WarningFFCHeard38 min
Jul 1, 6:22 PM EDTSevere Thunderstorm WarningFFCHenry38 min
Jul 1, 7:04 PM EDTSevere Thunderstorm WarningFFCCoweta25 min
Jul 1, 7:09 PM EDTSevere Thunderstorm WarningFFCButts25 min
Jul 1, 7:31 PM EDTSevere Thunderstorm WarningFFCMeriwether44 min
Jul 1, 7:41 PM EDTSevere Thunderstorm WarningFFCForsyth30 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2007Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.