Alert archive / Georgia / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 21, NWS Atlanta, GA

April 6, 201610 counties in Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Apr 6, 2016, 11:41 PM EDT for 10 counties in Georgia. It was in force for 49 min. 8 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 6, 2016, 11:41 PM EDT (03:41 UTC)
Expired: Apr 7, 2016, 12:30 AM EDT
In force: 49 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon
Tornado: Possible
Hail: 1.0 in
Wind: 60.0 mph

Counties Clayton County, GA, Cobb County, GA, Coweta County, GA, DeKalb County, GA, Douglas County, GA, Fayette County, GA, Fulton County, GA, Gwinnett County, GA, Henry County, GA, Rockdale County, GA

The radar

The Atlanta radar (KFFC), 25 km from the middle of the area, began a volume at 03:43 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 6, 11:44 PM EDT	TSTM WND GST 60	Powder Springs, GA	60 MPH WINDS AND NICKEL SIZED HAIL PERSISTED FOR SEVERAL MINUTES.
Apr 6, 11:46 PM EDT	TSTM WND DMG	1 Ene Longwood Subdivis, GA	LARGE TREE DOWN ON A HOME OFF COUNTRY CLUB ROAD. TIME ESTIMATED FROM RADAR.
Apr 6, 11:47 PM EDT	TSTM WND DMG	1 Sw Fair Oaks, GA	LARGE TREE FELL AND LANDED ON CORNER OF APARTMENT COMPLEX OFF FAVOR RD NW JUST NORTH OF WINDY HILL ROAD. NO INJURIES.
Apr 6, 11:55 PM EDT	TSTM WND DMG	1 E Treetop, GA	A TREE WAS DOWNED ON RIVERVIEW RD NEAR NORTHSIDE DR.
Apr 7, 12:02 AM EDT	TSTM WND DMG	1 E Brookhaven, GA	A TREE FELL ONTO POWER LINES ON WINDSOR PARKWAY NEAR OSBOURNE RD.
Apr 7, 12:05 AM EDT	TSTM WND DMG	Emory Estates, GA	A LARGE TREE FELL ONTO A HOME ON WESTMINSTER WAY NE CAUSING EXTENSIVE ROOF DAMAGE.
Apr 7, 12:05 AM EDT	TSTM WND DMG	Sandy Springs, GA	A LARGE TREE WAS UPROOTED IN FRONT OF A PHARMACY.
Apr 7, 12:07 AM EDT	TSTM WND DMG	East Lake Highlands, GA	A LARGE TREE WAS BLOWN ACROSS MEMORIAL DRIVE SE NEAR EAST LAKE PARK.

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 00:00Z, 3.7 hours before the alert went out and 28 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: 6 J/kg
Mixed-layer CIN: -38 J/kg
Mixed-layer LCL: 1454 m above ground
0-6 km bulk shear: 64 kt
0-1 km storm-relative helicity: 266 m²/s²
0-3 km storm-relative helicity: 418 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

708 
WUUS52 KFFC 070341
SVRFFC
GAC063-067-077-089-097-113-121-135-151-247-070430-
/O.NEW.KFFC.SV.W.0021.160407T0341Z-160407T0430Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1141 PM EDT WED APR 6 2016

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL DOUGLAS COUNTY IN NORTH CENTRAL GEORGIA...
  CLAYTON COUNTY IN NORTH CENTRAL GEORGIA...
  SOUTHWESTERN GWINNETT COUNTY IN NORTH CENTRAL GEORGIA...
  CENTRAL ROCKDALE COUNTY IN NORTH CENTRAL GEORGIA...
  FAYETTE COUNTY IN NORTH CENTRAL GEORGIA...
  NORTHERN COWETA COUNTY IN WEST CENTRAL GEORGIA...
  WESTERN HENRY COUNTY IN NORTH CENTRAL GEORGIA...
  DEKALB COUNTY IN NORTH CENTRAL GEORGIA...
  FULTON COUNTY IN NORTH CENTRAL GEORGIA...
  CENTRAL COBB COUNTY IN NORTH CENTRAL GEORGIA...

* UNTIL 1230 AM EDT

* AT 1141 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM NEAR MARIETTA TO NEAR LITHIA SPRINGS TO NEAR NEWNAN...
  MOVING EAST AT 50 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
  ATLANTA...MARIETTA...NEWNAN...DOUGLASVILLE...DECATUR...FAYETTEVILLE...
  JONESBORO...SANDY SPRINGS...SMYRNA...DUNWOODY...PEACHTREE CITY...EAST
  POINT...STOCKBRIDGE...UNION CITY...FOREST PARK...SNELLVILLE...RIVERDALE...
  COLLEGE PARK...POWDER SPRINGS AND FAIRBURN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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.

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 3344 8494 3348 8490 3349 8486 3352 8485
      3352 8482 3355 8483 3357 8481 3358 8485
      3372 8475 3379 8474 3379 8472 3397 8473
      3394 8403 3367 8404 3335 8426 3335 8439
      3334 8438 3334 8498 3337 8499
TIME...MOT...LOC 0341Z 273DEG 43KT 3394 8463 3372 8465 3341 8485 

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

1 follow-up statement

531 
WWUS52 KFFC 070411
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1211 AM EDT THU APR 7 2016

GAC067-097-070421-
/O.CAN.KFFC.SV.W.0021.000000T0000Z-160407T0430Z/
DOUGLAS GA-COBB GA-
1211 AM EDT THU APR 7 2016

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL DOUGLAS AND CENTRAL
COBB COUNTIES IS CANCELLED...

THE STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE WARNED
AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

LAT...LON 3370 8446 3383 8446 3389 8444 3391 8445
      3395 8440 3394 8403 3367 8404 3335 8426
      3334 8465 3336 8479
TIME...MOT...LOC 0411Z 272DEG 42KT 3392 8426 3370 8431 3339 8452 

$$

GAC063-077-089-113-121-135-151-247-070430-
/O.CON.KFFC.SV.W.0021.000000T0000Z-160407T0430Z/
CLAYTON GA-GWINNETT GA-ROCKDALE GA-FAYETTE GA-COWETA GA-HENRY GA-
DEKALB GA-FULTON GA-
1211 AM EDT THU APR 7 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 AM EDT
FOR CLAYTON...SOUTHWESTERN GWINNETT...CENTRAL ROCKDALE...FAYETTE...
NORTHEASTERN COWETA...WESTERN HENRY...DEKALB AND SOUTH CENTRAL FULTON
COUNTIES...

AT 1211 AM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM DORAVILLE TO NEAR CANDLER-MCAFEE TO NEAR PEACHTREE
CITY...MOVING EAST AT 50 MPH.

HAZARD...60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
ATLANTA...NEWNAN...DECATUR...FAYETTEVILLE...JONESBORO...SANDY SPRINGS...
DUNWOODY...PEACHTREE CITY...EAST POINT...STOCKBRIDGE...UNION CITY...FOREST
PARK...SNELLVILLE...RIVERDALE...COLLEGE PARK...FAIRBURN...LILBURN...
CHAMBLEE...NORCROSS AND DORAVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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.

TORRENTIAL RAINFALL IS OCCURRING WITH THESE STORMS...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

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 3370 8446 3383 8446 3389 8444 3391 8445
      3395 8440 3394 8403 3367 8404 3335 8426
      3334 8465 3336 8479
TIME...MOT...LOC 0411Z 272DEG 42KT 3392 8426 3370 8431 3339 8452 

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

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 6, 8:38 PM EDT	Special Weather Statement	FFC	Catoosa, Dade, Walker, Whitfield	37 min
Apr 6, 8:50 PM EDT	Special Weather Statement	FFC	Polk	40 min
Apr 6, 9:10 PM EDT	Special Weather Statement	FFC	Bartow, Floyd	50 min
Apr 6, 9:16 PM EDT	Severe Thunderstorm Warning	FFC	Bartow, Floyd, Haralson, Paulding, Polk	44 min
Apr 6, 9:51 PM EDT	Special Weather Statement	FFC	Haralson	39 min
Apr 6, 9:57 PM EDT	Severe Thunderstorm Warning	FFC	Bartow, Cherokee	48 min
Apr 6, 10:01 PM EDT	Severe Thunderstorm Warning	FFC	Haralson, Paulding, Polk	44 min
Apr 6, 10:07 PM EDT	Special Weather Statement	FFC	Chattooga, Floyd, Walker	53 min
Apr 6, 10:31 PM EDT	Severe Thunderstorm Warning	FFC	Cherokee, Forsyth, Fulton, Gwinnett	44 min
Apr 6, 10:45 PM EDT	Severe Thunderstorm Warning	FFC	Cobb, Paulding	45 min
Apr 6, 10:50 PM EDT	Special Weather Statement	FFC	Haralson, Paulding, Polk	40 min
Apr 6, 10:57 PM EDT	Special Weather Statement	FFC	Bartow, Cherokee, Fannin, Gilmer, Murray, Pickens	48 min
Apr 6, 11:02 PM EDT	Severe Thunderstorm Warning	FFC	Cherokee, Dawson, Forsyth, Hall, Lumpkin, Pickens	43 min
Apr 6, 11:29 PM EDT	Severe Thunderstorm Warning	FFC	Cherokee, Forsyth, Fulton	46 min
Apr 6, 11:40 PM EDT	Special Weather Statement	FFC	Chattahoochee, Muscogee	35 min
Apr 6, 11:51 PM EDT	Severe Thunderstorm Warning	FFC	Chattahoochee, Marion, Muscogee, Talbot	39 min
Apr 7, 12:09 AM EDT	Severe Thunderstorm Warning	FFC	Coweta, Fayette, Meriwether, Pike, Spalding, Troup and 1 more	51 min
Apr 7, 12:15 AM EDT	Special Weather Statement	FFC	Hall	45 min
Apr 7, 12:27 AM EDT	Severe Thunderstorm Warning	FFC	Barrow, Butts, Clarke, Gwinnett, Henry, Jackson and 6 more	48 min
Apr 7, 12:43 AM EDT	Severe Thunderstorm Warning	FFC	Butts, Henry, Jasper, Lamar, Monroe, Spalding and 1 more	47 min
Apr 7, 12:55 AM EDT	Special Weather Statement	FFC	Taylor	35 min
Apr 7, 1:03 AM EDT	Special Weather Statement	FFC	Clarke, Greene, Jasper, Madison, Morgan, Oconee and 2 more	42 min
Apr 7, 1:15 AM EDT	Severe Thunderstorm Warning	FFC	Chattahoochee, Marion, Muscogee, Schley, Talbot, Taylor	45 min
Apr 7, 1:23 AM EDT	Special Weather Statement	FFC	Baldwin, Bibb, Jones	52 min
Apr 7, 1:49 AM EDT	Tornado Warning	FFC	Marion, Stewart, Webster	27 min
Apr 7, 4:09 AM EDT	Wind Advisory	FFC	Banks, Barrow, Bartow, Carroll, Catoosa, Chattooga and 42 more	16 hr

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.