Alert archive / Georgia / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 260, NWS Atlanta, GA

August 28, 2016Catoosa County, Walker County, Whitfield County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Aug 28, 2016, 3:29 PM EDT for Catoosa County, Walker County, Whitfield County, Georgia. It was in force for 46 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: Aug 28, 2016, 3:29 PM EDT (19:29 UTC)
Expired: Aug 28, 2016, 4:15 PM EDT
In force: 46 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Catoosa County, GA, Walker County, GA, Whitfield County, GA

The radar

The Northeast Alabama radar (KHTX), 75 km from the middle of the area, began a volume at 19:33 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
Aug 28, 3:32 PM EDT	TSTM WND DMG	2 Nnw Dalton, GA	SEVERAL TREES REPORTED DOWN ON ROADS IN THE ROCKY FACE AND TUNNEL HILL AREAS...INCLUDING MILL CREEK ROAD...BEAVERDALE ROAD...TATE ROAD...MCARTHUR ROAD...AND LAFAYETTE ROAD AT OLD RINGGOLD ROAD.
Aug 28, 3:36 PM EDT	TSTM WND DMG	1 Sse Tunnel Hill, GA	ONE LARGE HARDWOOD TREE DOWN AT A RESIDENCE ON PAT CLEBOURNE LANE IN TUNNEL HILL.

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, 7.5 hours before the alert went out and 174 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: 52 J/kg
Mixed-layer CIN: -209 J/kg
Mixed-layer LCL: 1024 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: -48 m²/s²
0-3 km storm-relative helicity: 0 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

633 
WUUS52 KFFC 281929
SVRFFC
GAC047-295-313-282015-
/O.NEW.KFFC.SV.W.0260.160828T1929Z-160828T2015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
329 PM EDT SUN AUG 28 2016

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WALKER COUNTY IN NORTHWESTERN GEORGIA...
  SOUTHERN CATOOSA COUNTY IN NORTHWESTERN GEORGIA...
  SOUTHWESTERN WHITFIELD COUNTY IN NORTHWESTERN GEORGIA...

* UNTIL 415 PM EDT

* AT 328 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER MILL
  CREEK... OR NEAR DALTON...MOVING WEST 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. 

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  DALTON...LAFAYETTE...RINGGOLD...FORT
  OGLETHORPE...CHICKAMAUGA...TUNNEL HILL...NAOMI...CHATTANOOGA
  VALLEY...BLUE SPRING...MILL CREEK...NOBLE... COOPER
  HEIGHTS...ROCKY FACE...BEAUMONT...ROCK SPRING...LINWOOD...WOOD
  STATION AND FAIRVIEW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

LARGE HAIL AND DAMAGING WINDS AND CONTINUOUS CLOUD TO GROUND
LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY.
LIGHTNING IS ONE OF NATURE'S LEADING KILLERS. REMEMBER...IF YOU CAN
HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.

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 3485 8492 3468 8502 3467 8547 3473 8547
      3476 8545 3483 8545 3486 8544 3496 8538
TIME...MOT...LOC 1928Z 106DEG 18KT 3475 8508 

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

1 follow-up statement

057 
WWUS52 KFFC 281954
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
354 PM EDT SUN AUG 28 2016

GAC313-282003-
/O.CAN.KFFC.SV.W.0260.000000T0000Z-160828T2015Z/
WHITFIELD GA-
354 PM EDT SUN AUG 28 2016

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN WHITFIELD COUNTY
IS CANCELLED...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF 
THE WARNED AREA THEREFORE THE WARNING HAS BEEN CANCELLED.

LAT...LON 3488 8507 3481 8511 3482 8513 3477 8515
      3468 8519 3467 8547 3472 8547 3476 8545
      3483 8545 3486 8544 3496 8538
TIME...MOT...LOC 1953Z 106DEG 18KT 3479 8523 

$$

GAC047-295-282015-
/O.CON.KFFC.SV.W.0260.000000T0000Z-160828T2015Z/
WALKER GA-CATOOSA GA-
354 PM EDT SUN AUG 28 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM EDT
FOR CENTRAL WALKER AND SOUTHWESTERN CATOOSA COUNTIES...

AT 353 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER NOBLE...OR
NEAR LAFAYETTE...MOVING WEST AT 20 MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...PUBLIC REPORTED WIND DAMAGE. 

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO 
         ROOFS...SIDING...AND TREES. 

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
LAFAYETTE...RINGGOLD...FORT
OGLETHORPE...CHICKAMAUGA...NAOMI...CHATTANOOGA VALLEY...BLUE
SPRING...NOBLE...COOPER HEIGHTS...BEAUMONT...ROCK SPRING...
LINWOOD...WOOD STATION AND FAIRVIEW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE OFFICE IN
PEACHTREE CITY.

CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
MOVE INDOORS IMMEDIATELY. LIGHTNING IS ONE OF NATURE'S LEADING
KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO
BE STRUCK BY LIGHTNING.

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 3488 8507 3481 8511 3482 8513 3477 8515
      3468 8519 3467 8547 3472 8547 3476 8545
      3483 8545 3486 8544 3496 8538
TIME...MOT...LOC 1953Z 106DEG 18KT 3479 8523 

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
Aug 28, 3:06 PM EDT	Special Weather Statement	FFC	Whitfield	24 min
Aug 28, 3:59 PM EDT	Special Weather Statement	FFC	Union	31 min
Aug 28, 4:09 PM EDT	Special Weather Statement	FFC	Dade	36 min
Aug 28, 4:25 PM EDT	Special Weather Statement	FFC	Gordon	35 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2016 Every severe thunderstorm warning in 2016

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.