Alert archive / Georgia / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 225, NWS Atlanta, GA

July 6, 2018Catoosa County, Murray County, Whitfield County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 6, 2018, 5:00 PM EDT for Catoosa County, Murray County, Whitfield County, Georgia. It was in force for 30 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 6, 2018, 5:00 PM EDT (21:00 UTC)
Expired: Jul 6, 2018, 5:30 PM EDT
In force: 30 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

Counties Catoosa County, GA, Murray County, GA, Whitfield County, GA

The radar

The Northeast Alabama radar (KHTX), 112 km from the middle of the area, began a volume at 21:03 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 6, 5:10 PM EDT	TSTM WND DMG	2 Se Chatsworth, GA	TREE DOWN AT THE INTERSECTION OF RED RD AND OLD FEDERAL RD S.

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, 9.0 hours before the alert went out and 166 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: 716 J/kg
Mixed-layer CIN: -59 J/kg
Mixed-layer LCL: 918 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: 39 m²/s²
0-3 km storm-relative helicity: 46 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

673 
WUUS52 KFFC 062100
SVRFFC
GAC047-213-313-062130-
/O.NEW.KFFC.SV.W.0225.180706T2100Z-180706T2130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Peachtree City GA
500 PM EDT FRI JUL 6 2018

The National Weather Service in Peachtree City has issued a

* Severe Thunderstorm Warning for...
  East central Catoosa County in northwestern Georgia...
  Central Murray County in northwestern Georgia...
  Central Whitfield County in northwestern Georgia...

* Until 530 PM EDT.

* At 500 PM EDT, a severe thunderstorm was located over Eton, or near
  Chatsworth, moving west at 20 mph.

  HAZARD...60 mph wind gusts and nickel size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Dalton, Chatsworth, Varnell, Eton, Tunnel Hill, Crandall, Mill
  Creek, Dawnville, Sumac and Rocky Face.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

If you see wind damage...hail or 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 or tweet us your report at NWSATLANTA.

&&

LAT...LON 3489 8468 3473 8473 3472 8512 3494 8507
TIME...MOT...LOC 2100Z 096DEG 18KT 3483 8481 

HAIL...0.88IN
WIND...60MPH
 
$$

1 follow-up statement

669 
WWUS52 KFFC 062123
SVSFFC

Severe Weather Statement
National Weather Service Peachtree City GA
523 PM EDT FRI JUL 6 2018

GAC047-313-062132-
/O.CAN.KFFC.SV.W.0225.000000T0000Z-180706T2130Z/
Catoosa GA-Whitfield GA-
523 PM EDT FRI JUL 6 2018

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL CATOOSA AND
CENTRAL WHITFIELD COUNTIES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
Whitfield county. Therefore, the warning has been cancelled, however 
heavy rain, gusty winds and frequent lightning will continue through 
6 PM.

LAT...LON 3489 8468 3473 8473 3473 8487 3474 8485
      3478 8488 3480 8484 3481 8486 3483 8485
      3484 8485 3485 8484 3486 8484 3486 8483
      3487 8482
TIME...MOT...LOC 2122Z 096DEG 18KT 3484 8494 

$$

GAC213-062130-
/O.CON.KFFC.SV.W.0225.000000T0000Z-180706T2130Z/
Murray GA-
523 PM EDT FRI JUL 6 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR CENTRAL MURRAY COUNTY...

At 522 PM EDT, a severe thunderstorm was located near Dawnville, or
near Dalton, moving west at 20 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Chatsworth, Eton and Crandall. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3489 8468 3473 8473 3473 8487 3474 8485
      3478 8488 3480 8484 3481 8486 3483 8485
      3484 8485 3485 8484 3486 8484 3486 8483
      3487 8482
TIME...MOT...LOC 2122Z 096DEG 18KT 3484 8494 

HAIL...0.75IN
WIND...60MPH
 
$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 6, 12:57 PM EDT	Special Weather Statement	FFC	Gilmer	48 min
Jul 6, 1:42 PM EDT	Special Weather Statement	FFC	White	33 min
Jul 6, 1:45 PM EDT	Special Weather Statement	FFC	Cherokee	30 min
Jul 6, 2:04 PM EDT	Special Weather Statement	FFC	Dawson, Pickens	26 min
Jul 6, 2:11 PM EDT	Special Weather Statement	FFC	Towns	34 min
Jul 6, 2:15 PM EDT	Special Weather Statement	FFC	White	30 min
Jul 6, 2:30 PM EDT	Special Weather Statement	FFC	Dawson	30 min
Jul 6, 2:40 PM EDT	Special Weather Statement	FFC	Towns, Union	35 min
Jul 6, 2:48 PM EDT	Special Weather Statement	FFC	Hall	27 min
Jul 6, 2:51 PM EDT	Severe Thunderstorm Warning	FFC	Hall	39 min
Jul 6, 2:57 PM EDT	Special Weather Statement	FFC	Bartow, Cherokee, Pickens	33 min
Jul 6, 2:57 PM EDT	Severe Thunderstorm Warning	FFC	Union	23 min
Jul 6, 3:15 PM EDT	Special Weather Statement	FFC	Dade	30 min
Jul 6, 3:20 PM EDT	Special Weather Statement	FFC	Dawson, Lumpkin	25 min
Jul 6, 3:32 PM EDT	Special Weather Statement	FFC	Bartow	28 min
Jul 6, 3:45 PM EDT	Special Weather Statement	FFC	Chattooga	30 min
Jul 6, 4:00 PM EDT	Special Weather Statement	FFC	Polk	30 min
Jul 6, 4:03 PM EDT	Special Weather Statement	FFC	Banks	27 min
Jul 6, 4:16 PM EDT	Special Weather Statement	FFC	Fulton	29 min
Jul 6, 4:20 PM EDT	Special Weather Statement	FFC	Chattooga	25 min
Jul 6, 4:33 PM EDT	Special Weather Statement	FFC	Whitfield	27 min
Jul 6, 4:39 PM EDT	Severe Thunderstorm Warning	FFC	Cobb, Douglas, Fulton	36 min
Jul 6, 4:48 PM EDT	Special Weather Statement	FFC	Floyd	27 min
Jul 6, 4:56 PM EDT	Special Weather Statement	FFC	Murray	34 min
Jul 6, 5:12 PM EDT	Special Weather Statement	FFC	DeKalb, Fulton	33 min
Jul 6, 5:20 PM EDT	Special Weather Statement	FFC	Barrow, Clarke, Jackson, Walton	25 min
Jul 6, 5:30 PM EDT	Special Weather Statement	FFC	Gordon, Murray	30 min
Jul 6, 5:51 PM EDT	Special Weather Statement	FFC	Clayton	24 min
Jul 6, 6:15 PM EDT	Special Weather Statement	FFC	Carroll	30 min
Jul 6, 6:16 PM EDT	Special Weather Statement	FFC	Clayton, Henry, Rockdale	29 min
Jul 6, 6:18 PM EDT	Severe Thunderstorm Warning	FFC	Carroll	42 min
Jul 6, 7:04 PM EDT	Special Weather Statement	FFC	Troup	26 min
Jul 6, 7:21 PM EDT	Areal Flood Warning	FFC	Whitfield	3 hr
Jul 6, 7:22 PM EDT	Severe Thunderstorm Warning	FFC	Coweta, Heard, Meriwether, Troup	23 min
Jul 6, 7:48 PM EDT	Special Weather Statement	FFC	Heard, Troup	27 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2018 Every severe thunderstorm warning in 2018

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.