Alert archive / Georgia / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 216, NWS Atlanta, GA

June 14, 2017Cherokee County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jun 14, 2017, 7:53 PM EDT for Cherokee County, Georgia. It was in force for 26 min. 3 reports 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: Jun 14, 2017, 7:53 PM EDT (23:53 UTC)
Expired: Jun 14, 2017, 8:19 PM EDT
In force: 26 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Cherokee County, GA

The radar

The Atlanta radar (KFFC), 92 km from the middle of the area, began a volume at 23:56 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
Jun 14, 7:55 PM EDT	TSTM WND DMG	1 Wsw South Canton, GA	POWER LINES WERE REPORTED DOWN ON KNOX BRIDGE HIGHWAY NEAR BEVERLY DRIVE.
Jun 14, 8:00 PM EDT	TSTM WND DMG	1 E Canton, GA	TREES AND POWER LINES WERE DOWN NEAR THE INTERSECTION OF INTERSTATE 575 AND CUMMING HIGHWAY.
Jun 14, 8:00 PM EDT	TSTM WND DMG	1 Ese South Canton, GA	TREES AND POWER LINES WERE REPORTED DOWN ALONG KILLIAN ROAD BETWEEN CELEBRATION SONG AND BRICK MILL ROAD.

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, 11.9 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-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: 1192 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: 16 m²/s²
0-3 km storm-relative helicity: 20 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

249 
WUUS52 KFFC 142353
SVRFFC
GAC057-150045-
/O.NEW.KFFC.SV.W.0216.170614T2353Z-170615T0045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Peachtree City GA
753 PM EDT WED JUN 14 2017

The National Weather Service in Peachtree City has issued a

* Severe Thunderstorm Warning for...
  Southern Cherokee County in north central Georgia...

* Until 845 PM EDT

* At 753 PM EDT, a severe thunderstorm was located over Canton,
  moving east at 10 mph.

  HAZARD...60 mph wind gusts. 

  SOURCE...Radar indicated. 

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

* Locations impacted include...
  Canton, Woodstock, Holly Springs, Buffington, Free Home, Hickory
  Flat, Lebanon, Union Hill, Holbrook, Lathemtown and Bridgemill.

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 3424 8426 3420 8426 3419 8427 3419 8433
      3418 8435 3416 8436 3413 8436 3411 8440
      3411 8442 3407 8442 3408 8450 3418 8458
      3431 8446
TIME...MOT...LOC 2353Z 287DEG 7KT 3422 8449 

HAIL...<.75IN
WIND...60MPH
 
$$

1 follow-up statement

720 
WWUS52 KFFC 150019
SVSFFC

Severe Weather Statement
National Weather Service Peachtree City GA
819 PM EDT WED JUN 14 2017

GAC057-150029-
/O.CAN.KFFC.SV.W.0216.000000T0000Z-170615T0045Z/
Cherokee GA-
819 PM EDT WED JUN 14 2017

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN CHEROKEE COUNTY IS
CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore the warning has been cancelled.  However gusty winds are
still possible with this thunderstorm.

LAT...LON 3424 8426 3420 8426 3419 8427 3419 8433
      3418 8435 3416 8436 3413 8436 3411 8440
      3411 8442 3407 8442 3408 8450 3418 8458
      3431 8446
TIME...MOT...LOC 0018Z 287DEG 7KT 3420 8443 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 13, 9:52 PM EDT	Special Weather Statement	FFC	Forsyth	23 min
Jun 13, 10:05 PM EDT	Special Weather Statement	FFC	Cobb	25 min
Jun 13, 10:16 PM EDT	Special Weather Statement	FFC	Forsyth	29 min
Jun 13, 10:20 PM EDT	Severe Thunderstorm Warning	FFC	Forsyth, Fulton	25 min
Jun 13, 10:32 PM EDT	Special Weather Statement	FFC	Cobb	28 min
Jun 14, 1:02 PM EDT	Special Weather Statement	FFC	Pickens	28 min
Jun 14, 2:17 PM EDT	Special Weather Statement	FFC	White	28 min
Jun 14, 3:14 PM EDT	Special Weather Statement	FFC	Towns	31 min
Jun 14, 4:01 PM EDT	Special Weather Statement	FFC	White	29 min
Jun 14, 4:19 PM EDT	Special Weather Statement	FFC	Gwinnett	26 min
Jun 14, 4:29 PM EDT	Special Weather Statement	FFC	Union	31 min
Jun 14, 5:10 PM EDT	Special Weather Statement	FFC	Union	35 min
Jun 14, 5:20 PM EDT	Special Weather Statement	FFC	Banks	25 min
Jun 14, 5:22 PM EDT	Special Weather Statement	FFC	Union	23 min
Jun 14, 5:24 PM EDT	Severe Thunderstorm Warning	FFC	Banks, Hall, Jackson	36 min
Jun 14, 5:28 PM EDT	Special Weather Statement	FFC	Murray	32 min
Jun 14, 5:30 PM EDT	Severe Thunderstorm Warning	FFC	Banks	30 min
Jun 14, 5:40 PM EDT	Special Weather Statement	FFC	Fannin	35 min
Jun 14, 6:02 PM EDT	Special Weather Statement	FFC	Banks	28 min
Jun 14, 6:04 PM EDT	Special Weather Statement	FFC	Murray	26 min
Jun 14, 6:11 PM EDT	Severe Thunderstorm Warning	FFC	Banks, Madison	38 min
Jun 14, 6:21 PM EDT	Special Weather Statement	FFC	Fannin	24 min
Jun 14, 6:30 PM EDT	Special Weather Statement	FFC	Madison	30 min
Jun 14, 6:32 PM EDT	Special Weather Statement	FFC	Pickens	28 min
Jun 14, 6:34 PM EDT	Severe Thunderstorm Warning	FFC	Gilmer, Gordon, Pickens	27 min
Jun 14, 6:41 PM EDT	Special Weather Statement	FFC	Gilmer	34 min
Jun 14, 6:43 PM EDT	Severe Thunderstorm Warning	FFC	Gilmer	22 min
Jun 14, 6:55 PM EDT	Special Weather Statement	FFC	DeKalb	35 min
Jun 14, 7:14 PM EDT	Special Weather Statement	FFC	Cherokee	31 min
Jun 14, 7:38 PM EDT	Special Weather Statement	FFC	Dawson	37 min
Jun 14, 7:48 PM EDT	Severe Thunderstorm Warning	FFC	Cobb	21 min
Jun 14, 7:51 PM EDT	Special Weather Statement	FFC	Cherokee	24 min
Jun 14, 7:56 PM EDT	Special Weather Statement	FFC	Paulding	34 min
Jun 14, 7:59 PM EDT	Severe Thunderstorm Warning	FFC	Paulding	31 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2017 Every severe thunderstorm warning in 2017

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.