Alert archive / Georgia / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 347, NWS Atlanta, GA

November 18, 20176 counties in Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Nov 18, 2017, 10:27 PM EST for 6 counties in Georgia. It was in force for 48 min. 4 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
Nov 18, 2017, 10:27 PM EST (03:27 UTC)
Expired
Nov 18, 2017, 11:15 PM EST
In force
48 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Clayton County, GA, Coweta County, GA, Fayette County, GA, Fulton County, GA, Heard County, GA, Meriwether County, GA

The radar

The Atlanta radar (KFFC), 15 km from the middle of the area, began a volume at 03:27 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
Nov 18, 10:40 PM ESTTSTM WND DMG1 Ese Newnan, GAA TREE WAS REPORTED DOWN ON POWER LINES ON BALL STREET.
Nov 18, 10:40 PM ESTTSTM WND DMG3 Ssw Fairburn, GAA TREE WAS REPORTED DOWN ON OAKLEY INDUSTRIAL BOULEVARD NEAR CREEKWOOD DRIVE.
Nov 18, 10:49 PM ESTTSTM WND DMG1 N Sharpsburg, GAA POWER LINE WAS REPORTED DOWN NEAR THE INTERSECTION OF STEWART ROAD AND BOB SMITH ROAD.
Nov 18, 10:50 PM ESTTSTM WND DMG1 Nne Peachtree City, GAA TREE WAS REPORTED DOWN NEAR THE INTERSECTION OF INTERLOCHEN DRIVE AND NORTH PEACHTREE PARKWAY.

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 00:00Z, 3.5 hours before the alert went out and 19 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 00:00Z on 2017-11-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 6 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 00:00Z on 2017-11-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 441 square meters per square second.1939587897Sfc1 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
6 J/kg
Mixed-layer CIN
-38 J/kg
Mixed-layer LCL
884 m above ground
0-6 km bulk shear
67 kt
0-1 km storm-relative helicity
441 m²/s²
0-3 km storm-relative helicity
525 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

204 
WUUS52 KFFC 190327
SVRFFC
GAC063-077-113-121-149-199-190415-
/O.NEW.KFFC.SV.W.0347.171119T0327Z-171119T0415Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Peachtree City GA
1027 PM EST SAT NOV 18 2017

The National Weather Service in Peachtree City has issued a

* Severe Thunderstorm Warning for...
  North central Meriwether County in west central Georgia...
  Fayette County in north central Georgia...
  Northeastern Heard County in west central Georgia...
  Coweta County in west central Georgia...
  Central Clayton County in north central Georgia...
  Southwestern Fulton County in north central Georgia...

* Until 1115 PM EST

* At 1027 PM EST, severe thunderstorms were located along a line
  extending from near Campbellton to near Powers Crossroads, moving
  east at 40 mph.

  HAZARD...60 mph wind gusts. 

  SOURCE...Radar indicated. 

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

* Locations impacted include...
  Newnan, Fayetteville, Jonesboro, Peachtree City, Stockbridge, Union
  City, Riverdale, Fairburn, Tyrone, Lovejoy, Palmetto, Senoia,
  Grantville, Luthersville, Brooks, Centralhatchee, Moreland,
  Sharpsburg, Turin and Haralson.

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 3346 8498 3344 8494 3352 8485 3351 8483
      3353 8482 3355 8483 3359 8481 3365 8471
      3355 8428 3354 8429 3345 8429 3343 8432
      3343 8435 3339 8435 3314 8464 3333 8513
TIME...MOT...LOC 0327Z 288DEG 35KT 3360 8469 3333 8503 

HAIL...<.75IN
WIND...60MPH
 
$$
1 follow-up statement
193 
WWUS52 KFFC 190355
SVSFFC

Severe Weather Statement
National Weather Service Peachtree City GA
1055 PM EST SAT NOV 18 2017

GAC121-149-190405-
/O.CAN.KFFC.SV.W.0347.000000T0000Z-171119T0415Z/
Heard GA-Fulton GA-
1055 PM EST SAT NOV 18 2017

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN HEARD AND
SOUTHWESTERN FULTON COUNTIES IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

LAT...LON 3339 8474 3344 8466 3347 8459 3348 8454
      3351 8454 3351 8449 3358 8444 3355 8428
      3354 8429 3345 8429 3343 8432 3343 8435
      3339 8435 3314 8464 3324 8489
TIME...MOT...LOC 0355Z 288DEG 35KT 3353 8443 3326 8477 

$$

GAC063-077-113-199-190415-
/O.CON.KFFC.SV.W.0347.000000T0000Z-171119T0415Z/
Meriwether GA-Fayette GA-Coweta GA-Clayton GA-
1055 PM EST SAT NOV 18 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 PM EST
FOR NORTH CENTRAL MERIWETHER...FAYETTE...EASTERN COWETA AND CENTRAL
CLAYTON COUNTIES...

At 1055 PM EST, severe thunderstorms were located along a line
extending from near Riverdale to Moreland, moving east at 40 mph.

HAZARD...60 mph wind gusts. 

SOURCE...Radar indicated. 

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

Locations impacted include...
Newnan, Fayetteville, Jonesboro, Peachtree City, Stockbridge,
Riverdale, Tyrone, Lovejoy, Senoia, Grantville, Luthersville, Brooks,
Moreland, Sharpsburg, Turin, Haralson, Woolsey, East Newnan, Starrs
Mill and Inman.

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 3339 8474 3344 8466 3347 8459 3348 8454
      3351 8454 3351 8449 3358 8444 3355 8428
      3354 8429 3345 8429 3343 8432 3343 8435
      3339 8435 3314 8464 3324 8489
TIME...MOT...LOC 0355Z 288DEG 35KT 3353 8443 3326 8477 

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

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 18, 7:39 PM ESTSpecial Weather StatementFFCDade51 min
Nov 18, 8:12 PM ESTSpecial Weather StatementFFCCatoosa, Chattooga, Floyd, Walker, Whitfield48 min
Nov 18, 8:25 PM ESTSevere Thunderstorm WarningFFCDade, Walker23 min
Nov 18, 8:57 PM ESTSpecial Weather StatementFFCBartow, Floyd, Gilmer, Gordon, Murray, Polk and 1 more48 min
Nov 18, 9:25 PM ESTSpecial Weather StatementFFCCarroll, Cherokee, Cobb, Dawson, Douglas, Forsyth and 5 more65 min
Nov 18, 10:07 PM ESTSevere Thunderstorm WarningFFCCarroll, Coweta, Douglas, Fulton23 min
Nov 18, 10:16 PM ESTSpecial Weather StatementFFCBanks, Barrow, Clayton, Coweta, DeKalb, Fayette and 7 more44 min
Nov 18, 10:45 PM ESTSpecial Weather StatementFFCBarrow, Clarke, Clayton, Coweta, DeKalb, Fayette and 12 more45 min
Nov 18, 11:11 PM ESTSpecial Weather StatementFFCButts, Chattahoochee, Clarke, Harris, Henry, Jasper and 14 more49 min
Nov 18, 11:45 PM ESTSpecial Weather StatementFFCBaldwin, Bibb, Butts, Chattahoochee, Crawford, Greene and 22 more45 min
Nov 19, 12:39 AM ESTSpecial Weather StatementFFCBaldwin, Bibb, Bleckley, Glascock, Hancock, Houston and 6 more66 min
Nov 19, 2:48 AM ESTFreeze WarningFFCBaldwin, Banks, Barrow, Bartow, Bibb, Butts and 67 more30 hr

Nearby

Severe Thunderstorm Warnings in Georgia, 2017Every 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.