Alert archive / Georgia / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 331, NWS Atlanta, GA

November 6, 20185 counties in Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Nov 6, 2018, 3:58 AM EST for 5 counties in Georgia. It was in force for 62 min. 2 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 6, 2018, 3:58 AM EST (08:58 UTC)
Expired
Nov 6, 2018, 5:00 AM EST
In force
62 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Tornado
Possible
Hail
0.75 in
Wind
70.0 mph

Counties Catoosa County, GA, Chattooga County, GA, Dade County, GA, Walker County, GA, Whitfield County, GA

The radar

The Northeast Alabama radar (KHTX), 93 km from the middle of the area, began a volume at 09:02 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 6, 4:25 AM ESTTSTM WND DMG4 Sse Cooper Heights, GATREE DOWN AT INTERSECTION OF HWY 193 AND SOUTH HWY 341
Nov 6, 4:47 AM ESTTSTM WND DMG3 S Wood Station, GATREE DOWN NEAR 300 BLOCK OF HWY 151

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
Nov 6, 3:15 AM ESTTornado WatchSPC5 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 9.0 hours before the alert went out and 162 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 2018-11-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 25 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 2018-11-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 237 square meters per square second.193958Sfc1 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
25 J/kg
Mixed-layer CIN
-54 J/kg
Mixed-layer LCL
473 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
237 m²/s²
0-3 km storm-relative helicity
258 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

The text

As transmitted.

071 
WUUS52 KFFC 060858
SVRFFC
GAC047-055-083-295-313-061000-
/O.NEW.KFFC.SV.W.0331.181106T0858Z-181106T1000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Peachtree City GA
358 AM EST TUE NOV 6 2018

The National Weather Service in Peachtree City has issued a

* Severe Thunderstorm Warning for...
  Catoosa County in northwestern Georgia...
  Whitfield County in northwestern Georgia...
  Walker County in northwestern Georgia...
  Northern Chattooga County in northwestern Georgia...
  Dade County in northwestern Georgia...

* Until 500 AM EST.

* At 358 AM EST, severe thunderstorms were located along a line
  extending from near Fabius to near Dutton, moving east at 50 mph.

  HAZARD...Up to 70 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect considerable tree damage. Damage is likely to 
           mobile homes, roofs, and outbuildings.

* Locations impacted include...
  Dalton, Lafayette, Ringgold, Trenton, Fort Oglethorpe, Rossville,
  Chickamauga, Trion, Varnell, Lookout Mountain, Tunnel Hill,
  Cohutta, Center Post, Blue Spring, Fairview, Linwood, Beaverdale,
  Villanow, Chattanooga  Valley and Cloudland Canyon State Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

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.

&&

A Tornado Watch remains in effect until 900 AM EST for northwestern
Georgia.

LAT...LON 3499 8481 3491 8484 3461 8502 3462 8506
      3459 8506 3459 8511 3457 8512 3453 8552
      3498 8560
TIME...MOT...LOC 0858Z 263DEG 44KT 3481 8573 3458 8587 

TORNADO...POSSIBLE
HAIL...<.75IN
WIND...70MPH
 
$$
2 follow-up statements
408 
WWUS52 KFFC 060926
SVSFFC

Severe Weather Statement
National Weather Service Peachtree City GA
426 AM EST TUE NOV 6 2018

GAC055-083-060935-
/O.CAN.KFFC.SV.W.0331.000000T0000Z-181106T1000Z/
Chattooga GA-Dade GA-
426 AM EST TUE NOV 6 2018

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN CHATTOOGA AND DADE
COUNTIES IS CANCELLED...

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

A Tornado Watch remains in effect until 900 AM EST for northwestern
Georgia.

LAT...LON 3499 8481 3491 8484 3469 8497 3462 8553
      3462 8554 3467 8549 3470 8549 3473 8546
      3487 8544 3498 8536
TIME...MOT...LOC 0925Z 257DEG 40KT 3496 8531 3468 8547 

$$

GAC047-295-313-061000-
/O.CON.KFFC.SV.W.0331.000000T0000Z-181106T1000Z/
Catoosa GA-Whitfield GA-Walker GA-
426 AM EST TUE NOV 6 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 AM EST
FOR CATOOSA...WHITFIELD AND WALKER COUNTIES...

At 425 AM EST, severe thunderstorms were located along a line
extending from Fairview to near Sulpher Springs, moving east at 45
mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Dalton, Lafayette, Ringgold, Fort Oglethorpe, Chickamauga, Varnell,
Lookout Mountain, Tunnel Hill, Cohutta, Blue Spring, Fairview,
Linwood, Beaverdale, Villanow, Chattanooga  Valley, Cooper Heights,
Rock Spring, Naomi, Noble and Lakeview.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Intense thunderstorm lines can produce brief tornadoes and widespread
significant wind damage. Although a tornado is not immediately
likely, it is best to move to an interior room on the lowest floor of
a building. These storms may cause serious injury and significant
property damage.

&&

A Tornado Watch remains in effect until 900 AM EST for northwestern
Georgia.

LAT...LON 3499 8481 3491 8484 3469 8497 3462 8553
      3462 8554 3467 8549 3470 8549 3473 8546
      3487 8544 3498 8536
TIME...MOT...LOC 0925Z 257DEG 40KT 3496 8531 3468 8547 

TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
 
$$
778 
WWUS52 KFFC 060944
SVSFFC

Severe Weather Statement
National Weather Service Peachtree City GA
444 AM EST TUE NOV 6 2018

GAC047-295-313-061000-
/O.CON.KFFC.SV.W.0331.000000T0000Z-181106T1000Z/
Catoosa GA-Whitfield GA-Walker GA-
444 AM EST TUE NOV 6 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 AM EST
FOR CENTRAL CATOOSA...WHITFIELD AND SOUTHEASTERN WALKER COUNTIES...

At 444 AM EST, severe thunderstorms were located along a line
extending from Apison to Wood Station to near Lafayette, moving east
at 50 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Dalton, Lafayette, Ringgold, Varnell, Tunnel Hill, Cohutta, Naomi,
Wood Station, Rocky Face, Mill Creek, Beaverdale, Villanow, Red Clay
S.p. and Apison.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Intense thunderstorm lines can produce brief tornadoes and widespread
significant wind damage. Although a tornado is not immediately
likely, it is best to move to an interior room on the lowest floor of
a building. These storms may cause serious injury and significant
property damage.

&&

A Tornado Watch remains in effect until 900 AM EST for northwestern
Georgia.

LAT...LON 3464 8537 3477 8521 3499 8507 3499 8481
      3491 8484 3469 8497
TIME...MOT...LOC 0944Z 267DEG 44KT 3499 8501 3478 8514 3466 8531 

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

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 6, 3:55 AM ESTSpecial Weather StatementFFCCatoosa, Dade, Fannin, Gilmer, Gordon, Murray and 2 more110 min
Nov 6, 4:52 AM ESTSevere Thunderstorm WarningFFCFannin, Gilmer, Murray, Walker, Whitfield38 min
Nov 6, 5:21 AM ESTSevere Thunderstorm WarningFFCFannin, Gilmer, Gordon, Murray, Pickens38 min
Nov 6, 5:58 AM ESTSpecial Weather StatementFFCFannin, Gilmer, Towns, Union47 min
Nov 6, 6:27 AM ESTSpecial Weather StatementFFCTowns, White33 min
Nov 6, 6:53 AM ESTSpecial Weather StatementFFCDawson37 min
Nov 6, 7:04 AM ESTSevere Thunderstorm WarningFFCCherokee, Dawson, Forsyth, Hall15 min
Nov 6, 7:15 AM ESTSpecial Weather StatementFFCWhite15 min
Nov 6, 7:39 AM ESTSpecial Weather StatementFFCForsyth36 min
Nov 6, 8:00 AM ESTSpecial Weather StatementFFCGwinnett30 min
Nov 6, 8:30 AM ESTSpecial Weather StatementFFCBarrow, Jackson30 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2018Every 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.