Alert archive / Georgia / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 182, NWS Atlanta, GA

June 26, 2018Chattooga County, Floyd County, Gordon County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jun 26, 2018, 4:31 PM EDT for Chattooga County, Floyd County, Gordon County, Georgia. It was in force for 29 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 26, 2018, 4:31 PM EDT (20:31 UTC)
Expired
Jun 26, 2018, 5:00 PM EDT
In force
29 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Chattooga County, GA, Floyd County, GA, Gordon County, GA

The radar

The Northeast Alabama radar (KHTX), 108 km from the middle of the area, began a volume at 20:31 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.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 8.5 hours before the alert went out and 129 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 12:00Z on 2018-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 143 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 12:00Z on 2018-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -11 square meters per square second.1939Sfc1 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
143 J/kg
Mixed-layer CIN
-212 J/kg
Mixed-layer LCL
1032 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-11 m²/s²
0-3 km storm-relative helicity
-2 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

769 
WUUS52 KFFC 262031
SVRFFC
GAC055-115-129-262100-
/O.NEW.KFFC.SV.W.0182.180626T2031Z-180626T2100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Peachtree City GA
431 PM EDT TUE JUN 26 2018

The National Weather Service in Peachtree City has issued a

* Severe Thunderstorm Warning for...
  Northeastern Floyd County in northwestern Georgia...
  Southwestern Gordon County in northwestern Georgia...
  Northeastern Chattooga County in northwestern Georgia...

* Until 500 PM EDT.

* At 431 PM EDT, a severe thunderstorm was located near Tidings, or 8
  miles east of Summerville, moving east at 20 mph.

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

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Calhoun, Plainville, Shannon, Pinson, Oostanaula, Subligna,
  Tidings, Armuchee and Everett Springs.

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 3458 8526 3454 8492 3438 8499 3439 8499
      3439 8501 3435 8501 3435 8502 3431 8502
      3440 8530
TIME...MOT...LOC 2031Z 281DEG 16KT 3448 8520 

HAIL...1.00IN
WIND...60MPH
 
$$
1 follow-up statement
332 
WWUS52 KFFC 262052
SVSFFC

Severe Weather Statement
National Weather Service Peachtree City GA
452 PM EDT TUE JUN 26 2018

GAC055-115-129-262100-
/O.CON.KFFC.SV.W.0182.000000T0000Z-180626T2100Z/
Floyd GA-Gordon GA-Chattooga GA-
452 PM EDT TUE JUN 26 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM EDT
FOR NORTHEASTERN FLOYD...SOUTHWESTERN GORDON AND NORTHEASTERN
CHATTOOGA COUNTIES...

At 451 PM EDT, a severe thunderstorm was located over Everett
Springs, or 9 miles west of Calhoun, moving east at 15 mph.

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

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Calhoun, Plainville, Everett Springs, Oostanaula and Subligna. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3457 8519 3454 8492 3439 8500 3439 8501
      3438 8501 3436 8502 3444 8521
TIME...MOT...LOC 2051Z 278DEG 14KT 3447 8511 

HAIL...1.00IN
WIND...60MPH
 
$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 25, 8:02 PM EDTSpecial Weather StatementFFCJohnson28 min
Jun 25, 8:07 PM EDTSpecial Weather StatementFFCChattahoochee, Marion, Schley38 min
Jun 25, 8:18 PM EDTSpecial Weather StatementFFCJefferson27 min
Jun 25, 8:31 PM EDTSpecial Weather StatementFFCMontgomery, Toombs44 min
Jun 25, 8:39 PM EDTSpecial Weather StatementFFCEmanuel36 min
Jun 25, 8:46 PM EDTSpecial Weather StatementFFCWheeler29 min
Jun 25, 9:12 PM EDTSpecial Weather StatementFFCToombs33 min
Jun 26, 3:02 PM EDTSpecial Weather StatementFFCCarroll28 min
Jun 26, 3:27 PM EDTSpecial Weather StatementFFCCarroll33 min
Jun 26, 4:15 PM EDTSpecial Weather StatementFFCGordon30 min
Jun 26, 4:29 PM EDTSpecial Weather StatementFFCChattooga16 min
Jun 26, 4:42 PM EDTSpecial Weather StatementFFCWhitfield33 min
Jun 26, 7:55 PM EDTSpecial Weather StatementFFCWhite35 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.