Alert archive / Georgia / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 78, NWS Atlanta, GA

June 11, 2016Chattahoochee County, Muscogee County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jun 11, 2016, 4:11 PM EDT for Chattahoochee County, Muscogee County, Georgia. It was in force for 49 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: Jun 11, 2016, 4:11 PM EDT (20:11 UTC)
Expired: Jun 11, 2016, 5:00 PM EDT
In force: 49 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Chattahoochee County, GA, Muscogee County, GA

The radar

The Maxwell AFB radar (KMXX), 82 km from the middle of the area, began a volume at 20:13 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
Jun 11, 4:15 PM EDT	TSTM WND DMG	Riverland Terrace, GA	1 TREE FELL ON A HOUSE ON HAWTHRONE DRIVE
Jun 11, 4:55 PM EDT	TSTM WND DMG	4 Ssw Cusseta, GA	5 TRESS WERE BLOWN DOWN ON RIVER BEND ROAD

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, 8.2 hours before the alert went out and 120 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: 3 J/kg
Mixed-layer CIN: -307 J/kg
Mixed-layer LCL: 1840 m above ground
0-6 km bulk shear: 5 kt
0-1 km storm-relative helicity: 22 m²/s²
0-3 km storm-relative helicity: 14 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

776 
WUUS52 KFFC 112011
SVRFFC
GAC053-215-112100-
/O.NEW.KFFC.SV.W.0078.160611T2011Z-160611T2100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
411 PM EDT SAT JUN 11 2016

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN CHATTAHOOCHEE COUNTY IN WEST CENTRAL GEORGIA...
  SOUTH CENTRAL MUSCOGEE COUNTY IN WEST CENTRAL GEORGIA...

* UNTIL 500 PM EDT

* AT 411 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR FORT
  BENNING/LAWSON ARMY AIR FLD...OR 7 MILES SOUTHEAST OF
  COLUMBUS...AND IS NEARLY STATIONARY.

  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
  CUSSETA...FORT BENNING/LAWSON ARMY AIR FLD...SAND HILL...CARTER
  ACRES... BENNING PARK...BATTLE PARK...CUSTER ROAD
  TERRACE...BENNING HILLS AND JAMESTOWN/SOUTH FORT BENNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS. PEOPLE OUTSIDE
SHOULD MOVE IMMEDIATELY TO SHELTER INSIDE A STRONG BUILDING. STAY
AWAY FROM WINDOWS.

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 3235 8500 3238 8497 3238 8499 3239 8499
      3239 8497 3241 8498 3242 8496 3243 8496
      3243 8476 3225 8476 3225 8490 3226 8489
      3230 8494 3233 8501
TIME...MOT...LOC 2011Z 170DEG 1KT 3236 8492 

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
Jun 11, 3:52 PM EDT	Special Weather Statement	FFC	Chattahoochee, Marion, Schley	38 min
Jun 11, 4:53 PM EDT	Severe Thunderstorm Warning	FFC	Chattahoochee, Stewart	33 min
Jun 11, 4:58 PM EDT	Special Weather Statement	FFC	Muscogee	47 min
Jun 11, 5:28 PM EDT	Special Weather Statement	FFC	Stewart	47 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.