Alert archive / Georgia / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 63, NWS Atlanta, GA

April 4, 2007Bartow County, Floyd County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Apr 4, 2007, 1:29 AM EDT for Bartow County, Floyd County, Georgia. It was in force for 46 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: Apr 4, 2007, 1:29 AM EDT (05:29 UTC)
Expired: Apr 4, 2007, 2:15 AM EDT
In force: 46 min
Issued by: NWS Atlanta, GA
Area: Counties, with a storm outline in the text

Counties Bartow County, GA, Floyd County, GA

The radar

The Northeast Alabama radar (KHTX), 114 km from the middle of the area, began a volume at 05:30 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
Apr 4, 1:43 AM EDT	HAIL 0.88	Adairsville, GA	PENNY TO NICKEL SIZE HAIL REPORTED THROUGHOUT ADAIRSVILLE.

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.

Issued	Product	Office	Lasted
Apr 4, 12:21 AM EDT	Severe Thunderstorm Watch	SPC	3 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 5.5 hours before the alert went out and 120 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: 1307 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 801 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 83 m²/s²
0-3 km storm-relative helicity: 124 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 4.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS52 KFFC 040529
SVRFFC
GAC015-115-040615-
/O.NEW.KFFC.SV.W.0063.070404T0529Z-070404T0615Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
129 AM EDT WED APR 4 2007

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN BARTOW COUNTY IN NORTHWEST GEORGIA
  EASTERN FLOYD COUNTY IN NORTHWEST GEORGIA

* UNTIL 215 AM EDT

* AT 125 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM.  THIS STORM WAS LOCATED NEAR SHANNON...MOVING
  EAST AT 30 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  ADAIRSVILLE AND FOLSOM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 600 AM EDT
WEDNESDAY MORNING FOR NORTHERN GEORGIA.

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 3441 8521 3423 8519 3424 8482 3444 8484

$$

1 follow-up statement

000 
WWUS52 KFFC 040547
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
143 AM EDT WED APR 4 2007

GAC015-115-040615-
/O.CON.KFFC.SV.W.0063.000000T0000Z-070404T0615Z/
BARTOW GA-FLOYD GA-
143 AM EDT WED APR 4 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 AM EDT
FOR FLOYD AND NORTHWESTERN BARTOW COUNTIES...

AT 142 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM. THIS STORM WAS LOCATED NEAR 
SHANNON...MOVING EAST AT 25 MPH. THIS STORM WILL EXIT FLOYD COUNTY 
SHORTLY...HOWEVER ANOTHER STORM NEAR CAVE SPRING WILL MOVE EAST AT 
20 MILES AN HOUR...AFFECTING ROME AND LINDALE.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
KINGSTON...ADAIRSVILLE...CASSVILLE AND FOLSOM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 600 AM EDT
WEDNESDAY MORNING FOR NORTHERN GEORGIA.

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 3428 8545 3409 8544 3424 8482 3444 8484
      3441 8524

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 4, 12:08 AM EDT	Severe Thunderstorm Warning	FFC	Catoosa, Dade, Walker, Whitfield	52 min
Apr 4, 12:16 AM EDT	Severe Thunderstorm Warning	FFC	Fannin	29 min
Apr 4, 12:35 AM EDT	Severe Thunderstorm Warning	FFC	Union	40 min
Apr 4, 12:54 AM EDT	Severe Thunderstorm Warning	FFC	Chattooga	36 min
Apr 4, 12:58 AM EDT	Severe Thunderstorm Warning	FFC	Walker	32 min
Apr 4, 1:02 AM EDT	Severe Thunderstorm Warning	FFC	Fannin	43 min
Apr 4, 1:31 AM EDT	Severe Thunderstorm Warning	FFC	Union	22 min
Apr 4, 1:57 AM EDT	Severe Thunderstorm Warning	FFC	Polk	33 min
Apr 4, 2:10 AM EDT	Fire Weather Watch	FFC	Baldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 90 more	13 hr
Apr 4, 3:31 PM EDT	Red Flag Warning	FFC	Baldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 90 more	26 hr

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.