Alert archive / Georgia / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 27, NWS Atlanta, GA

April 22, 2016Gilmer County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Apr 22, 2016, 7:13 PM EDT for Gilmer County, Georgia. It was in force for 25 min. 1 report 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 22, 2016, 7:13 PM EDT (23:13 UTC)
Expired: Apr 22, 2016, 7:38 PM EDT
In force: 25 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

County Gilmer County, GA

The radar

The Atlanta radar (KFFC), 139 km from the middle of the area, began a volume at 23:14 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 22, 7:30 PM EDT	TSTM WND DMG	Ellijay, GA	3 TREES DOWN NEAR EAST ELLIJAY. ONE ON LEGION ROAD...ONE ON SOUTH MAIN STREET...AND ONE ON PROGRESS ROAD

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 11.2 hours before the alert went out and 265 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: 43 J/kg
Mixed-layer CIN: -62 J/kg
Mixed-layer LCL: 722 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 0 m²/s²
0-3 km storm-relative helicity: 92 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

As transmitted.

758 
WUUS52 KFFC 222313
SVRFFC
GAC123-230000-
/O.NEW.KFFC.SV.W.0027.160422T2313Z-160423T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
713 PM EDT FRI APR 22 2016

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  GILMER COUNTY IN NORTH CENTRAL GEORGIA...

* UNTIL 800 PM EDT

* AT 713 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER ELLIJAY...
  MOVING SOUTHEAST AT 25 MPH.

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

  SOURCE...LAW ENFORCEMENT. 

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

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  ELLIJAY...EAST ELLIJAY...CARTECAY...ROY...ROUNDTOP AND TALONA. 

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 3468 8425 3467 8425 3464 8420 3462 8420
      3460 8422 3460 8426 3457 8426 3457 8429
      3458 8433 3456 8435 3456 8437 3455 8437
      3456 8443 3455 8447 3456 8447 3456 8449
      3455 8448 3455 8449 3465 8463 3480 8451
TIME...MOT...LOC 2313Z 305DEG 23KT 3469 8450 

HAIL...0.88IN
WIND...60MPH
 
$$

1 follow-up statement

538 
WWUS52 KFFC 222338
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
738 PM EDT FRI APR 22 2016

GAC123-222348-
/O.CAN.KFFC.SV.W.0027.000000T0000Z-160423T0000Z/
GILMER GA-
738 PM EDT FRI APR 22 2016

...THE SEVERE THUNDERSTORM WARNING FOR GILMER COUNTY IS CANCELLED...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING HAS BEEN CANCELLED.  HOWEVER GUSTY WINDS ARE
STILL POSSIBLE WITH THIS THUNDERSTORM.

LAT...LON 3468 8425 3467 8425 3464 8420 3462 8420
      3460 8422 3460 8426 3457 8426 3457 8429
      3458 8433 3456 8435 3456 8437 3455 8437
      3456 8443 3455 8447 3456 8447 3456 8449
      3455 8448 3455 8449 3465 8463 3480 8451
TIME...MOT...LOC 2336Z 305DEG 23KT 3460 8434 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 22, 5:42 PM EDT	Special Weather Statement	FFC	Murray, Whitfield	33 min
Apr 22, 6:19 PM EDT	Special Weather Statement	FFC	Fannin, Murray	41 min
Apr 22, 7:01 PM EDT	Special Weather Statement	FFC	Fannin, Gilmer, Gordon	44 min
Apr 22, 7:26 PM EDT	Special Weather Statement	FFC	Dawson	34 min
Apr 22, 7:41 PM EDT	Special Weather Statement	FFC	Gordon, Pickens	34 min
Apr 22, 7:59 PM EDT	Severe Thunderstorm Warning	FFC	Cherokee, Pickens	31 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.