Alert archive / Georgia / Tornado Warnings in 2020

Tornado Warning 16, NWS Atlanta, GA

April 12, 2020Chattooga County, Floyd County, Walker County, Georgia

NWS Atlanta, GA issued this tornado warning at Apr 12, 2020, 7:54 PM EDT for Chattooga County, Floyd County, Walker County, Georgia. It was in force for 36 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: Apr 12, 2020, 7:54 PM EDT (23:54 UTC)
Expired: Apr 12, 2020, 8:30 PM EDT
In force: 36 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Chattooga County, GA, Floyd County, GA, Walker County, GA

The radar

The Northeast Alabama radar (KHTX), 87 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
Apr 12, 8:00 PM EDT	TORNADO	4 Ne Trion, GA	REPORTS OF CONSIDERABLE DAMAGE TO HOMES ALONG HALLS VALLEY DR IN TRION DUE TO LIKELY TORNADO.
Apr 12, 8:09 PM EDT	TSTM WND DMG	3 Wnw Lyerly, GA	A TREE WAS REPORTED DOWN NEAR THE INTERSECTION OF OAK HILL ROAD AND OAK HILL ALPINE ROAD.
Apr 12, 8:15 PM EDT	TORNADO	2 Ssw Trion, GA	AMENDING PREVIOUS LSR...A LONG TRACK TORNADO TRACKED THROUGH CHATTOOGA AND WALKER COUNTIES TOUCHING DOWN JUST NORTH OF SUMMERVILLE AND CAUSING EXTENSIVE DAMAGE TO TREES AND HOMES. THE HIGHEST WIND SPEED RECORDED IN CHATTOOGA COUNTY CAME WHEN A MANUFACTURED HOM

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.

Issued	Product	Office	Lasted
Apr 12, 7:22 PM EDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 11.9 hours before the alert went out and 146 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: 1999 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 219 m²/s²
0-3 km storm-relative helicity: 275 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

161 
WFUS52 KFFC 122354
TORFFC
GAC055-115-295-130030-
/O.NEW.KFFC.TO.W.0016.200412T2354Z-200413T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Peachtree City GA
754 PM EDT Sun Apr 12 2020

The National Weather Service in Peachtree City has issued a

* Tornado Warning for...
  Northeastern Floyd County in northwestern Georgia...
  South central Walker County in northwestern Georgia...
  Chattooga County in northwestern Georgia...

* Until 830 PM EDT.
    
* At 754 PM EDT, a severe thunderstorm capable of producing a tornado
  was located over Blanche, or over Little River Canyon National
  Preserve, moving northeast at 45 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* Locations impacted include...
  Summerville, Trion, Lyerly, Menlo, Subligna, Berryton,
  Chattoogaville, Tidings, Everett Springs and James H. Floyd State
  Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

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 3461 8530 3461 8511 3453 8509 3449 8509
      3433 8547 3448 8550
TIME...MOT...LOC 2354Z 234DEG 39KT 3433 8562 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

1 follow-up statement

770 
WWUS52 KFFC 130016
SVSFFC

Severe Weather Statement
National Weather Service Peachtree City GA
816 PM EDT Sun Apr 12 2020

GAC055-115-295-130030-
/O.CON.KFFC.TO.W.0016.000000T0000Z-200413T0030Z/
Floyd GA-Walker GA-Chattooga GA-
816 PM EDT Sun Apr 12 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 830 PM EDT FOR
NORTHEASTERN FLOYD...SOUTH CENTRAL WALKER AND NORTHEASTERN CHATTOOGA
COUNTIES...
    
At 816 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Berryton, or over Summerville, moving northeast at
50 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations impacted include...
Summerville, Trion, Everett Springs, Subligna, James H. Floyd State
Park and Berryton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3441 8538 3450 8543 3461 8527 3461 8511
      3453 8509 3449 8509
TIME...MOT...LOC 0016Z 243DEG 44KT 3446 8537 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 11, 11:23 PM EDT	Wind Advisory	FFC	Baldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 90 more	35 hr
Apr 12, 3:36 AM EDT	Flash Flood Watch	FFC	Catoosa, Chattooga, Dade, Dawson, Fannin, Floyd and 10 more	28 hr
Apr 12, 10:30 AM EDT	River Flood Warning	FFC	Dade	48 hr
Apr 12, 6:48 PM EDT	River Flood Warning	FFC	Catoosa	63 hr
Apr 12, 7:01 PM EDT	River Flood Warning	FFC	Chattooga	40 hr
Apr 12, 7:20 PM EDT	Special Weather Statement	FFC	Chattooga, Floyd	40 min
Apr 12, 7:48 PM EDT	Severe Thunderstorm Warning	FFC	Chattooga, Floyd, Walker	42 min

Nearby

Tornado Warnings in Georgia, 2020 Every tornado warning in 2020 Tornadoes in 2020

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.