Alert archive / Georgia / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 35, NWS Atlanta, GA

April 9, 2021Murray County, Whitfield County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Apr 9, 2021, 4:51 PM EDT for Murray County, Whitfield County, Georgia. It was in force for 24 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 9, 2021, 4:51 PM EDT (20:51 UTC)
Expired: Apr 9, 2021, 5:15 PM EDT
In force: 24 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Murray County, GA, Whitfield County, GA

The radar

The Northeast Alabama radar (KHTX), 108 km from the middle of the area, began a volume at 20:55 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 9, 5:03 PM EDT	TSTM WND DMG	Dalton, GA	PARTS OF A ROOF BLEW OFF OF A BUSINESS AND LANDED ON SOME POWER LINES ON THE 400 BLOCK OF S SPENCER ST
Apr 9, 5:08 PM EDT	TSTM WND DMG	3 Nne Dalton, GA	A TREE WAS DOWNED ONTO THE ROAD AT CENTENNIAL PARKWAY AND CLEVELAND HIGHWAY
Apr 9, 5:11 PM EDT	TSTM WND DMG	3 Nw North Georgia Spee, GA	A TREE WAS DOWNED AT THE 4550 BLOCK OF AIRPORT RD SE

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, 8.9 hours before the alert went out and 156 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: 503 J/kg
Mixed-layer CIN: -93 J/kg
Mixed-layer LCL: 908 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 53 m²/s²
0-3 km storm-relative helicity: 140 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

328 
WUUS52 KFFC 092051
SVRFFC
GAC213-313-092115-
/O.NEW.KFFC.SV.W.0035.210409T2051Z-210409T2115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Peachtree City GA
451 PM EDT Fri Apr 9 2021

The National Weather Service in Peachtree City has issued a

* Severe Thunderstorm Warning for...
  Southwestern Murray County in northwestern Georgia...
  Whitfield County in northwestern Georgia...

* Until 515 PM EDT.

* At 450 PM EDT, a severe thunderstorm was located over Tilton, or 7
  miles south of Dalton, moving north 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...
  Dalton, Chatsworth, Varnell, Eton, Tunnel Hill, Mill Creek,
  Dawnville, Rocky Face, Tilton and North Georgia Speedway.

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 3484 8471 3461 8484 3461 8486 3462 8486
      3462 8491 3463 8491 3463 8493 3462 8493
      3462 8505 3472 8505 3472 8506 3487 8504
      3488 8501 3491 8502 3491 8501
TIME...MOT...LOC 2050Z 196DEG 17KT 3466 8496 

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

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 8, 9:11 PM EDT	Special Weather Statement	FFC	White	34 min
Apr 9, 9:11 AM EDT	Special Weather Statement	FFC	Stewart	34 min
Apr 9, 9:44 AM EDT	Special Weather Statement	FFC	Stewart	46 min
Apr 9, 3:44 PM EDT	Special Weather Statement	FFC	Chattooga	31 min
Apr 9, 3:57 PM EDT	Severe Thunderstorm Warning	FFC	Chattooga, Dade, Walker	33 min
Apr 9, 4:35 PM EDT	Special Weather Statement	FFC	Catoosa, Walker	25 min
Apr 9, 4:37 PM EDT	Special Weather Statement	FFC	Gordon	38 min
Apr 9, 5:12 PM EDT	Severe Thunderstorm Warning	FFC	Murray	14 min
Apr 9, 5:20 PM EDT	Special Weather Statement	FFC	Catoosa	25 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2021 Every severe thunderstorm warning in 2021

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.