Alert archive / Georgia / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 8, NWS Atlanta, GA

March 1, 2016DeKalb County, Henry County, Rockdale County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Mar 1, 2016, 8:51 PM EST for DeKalb County, Henry County, Rockdale County, Georgia. It was in force for 24 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Mar 1, 2016, 8:51 PM EST (01:51 UTC)
Expired
Mar 1, 2016, 9:15 PM EST
In force
24 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties DeKalb County, GA, Henry County, GA, Rockdale County, GA

The radar

The Atlanta radar (KFFC), 64 km from the middle of the area, began a volume at 01:53 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Mar 1, 6:25 PM ESTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 1.9 hours before the alert went out and 59 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-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 00:00Z on 2016-03-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 00:00Z on 2016-03-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 236 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
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
-33 J/kg
Mixed-layer LCL
1253 m above ground
0-6 km bulk shear
64 kt
0-1 km storm-relative helicity
236 m²/s²
0-3 km storm-relative helicity
353 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

980 
WUUS52 KFFC 020151
SVRFFC
GAC089-151-247-020215-
/O.NEW.KFFC.SV.W.0008.160302T0151Z-160302T0215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
851 PM EST TUE MAR 1 2016

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ROCKDALE COUNTY IN NORTH CENTRAL GEORGIA...
  NORTH CENTRAL HENRY COUNTY IN NORTH CENTRAL GEORGIA...
  SOUTHEASTERN DEKALB COUNTY IN NORTH CENTRAL GEORGIA...

* UNTIL 915 PM EST

* AT 850 PM EST...A SEVERE THUNDERSTORM WAS LOCATED NEAR LITHONIA...OR
  NEAR CONYERS...MOVING EAST AT 40 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
  CONYERS...LITHONIA...LAKEVIEW ESTATES...GEORGIA INTERNATIONAL HORSE
  PARK...MILSTEAD...RICHARDSON PARK...BIG HAYNES CREEK PARK...ARABIA
  MOUNTAIN...REDAN...MAGNET AND KELLEYTOWN.

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 3376 8413 3377 8405 3375 8402 3377 8400
      3377 8396 3374 8391 3372 8392 3371 8391
      3371 8393 3369 8392 3365 8393 3353 8404
      3354 8420
TIME...MOT...LOC 0150Z 271DEG 37KT 3366 8412 

HAIL...<.75IN
WIND...60MPH
 
$$
1 follow-up statement
041 
WWUS52 KFFC 020206
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
906 PM EST TUE MAR 1 2016

GAC089-151-247-020215-
/O.EXP.KFFC.SV.W.0008.000000T0000Z-160302T0215Z/
ROCKDALE GA-HENRY GA-DEKALB GA-
906 PM EST TUE MAR 1 2016

...THE SEVERE THUNDERSTORM WARNING FOR ROCKDALE...NORTH CENTRAL HENRY
AND SOUTHEASTERN DEKALB COUNTIES WILL EXPIRE AT 915 PM EST...
        
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE AREA.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM EST FOR
NORTH CENTRAL GEORGIA.

LAT...LON 3376 8413 3377 8405 3375 8402 3377 8400
      3377 8396 3374 8391 3372 8392 3371 8391
      3371 8393 3369 8392 3365 8393 3353 8404
      3354 8420
TIME...MOT...LOC 0204Z 271DEG 37KT 3366 8412 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 1, 7:13 PM ESTSpecial Weather StatementFFCHaralson32 min
Mar 1, 7:32 PM ESTSpecial Weather StatementFFCCarroll, Cobb, Douglas, Haralson, Paulding28 min
Mar 1, 7:59 PM ESTSpecial Weather StatementFFCClayton, Coweta, DeKalb, Fayette, Fulton, Heard46 min
Mar 1, 8:08 PM ESTSevere Thunderstorm WarningFFCCarroll, Coweta, Douglas, Fulton, Heard37 min
Mar 1, 8:46 PM ESTSpecial Weather StatementFFCButts, Fayette, Harris, Henry, Lamar, Meriwether and 4 more29 min
Mar 1, 9:01 PM ESTSevere Thunderstorm WarningFFCNewton29 min
Mar 1, 9:17 PM ESTSpecial Weather StatementFFCButts, Harris, Henry, Lamar, Meriwether, Monroe and 5 more43 min
Mar 1, 9:26 PM ESTSpecial Weather StatementFFCClarke, Greene, Jasper, Morgan, Oconee, Oglethorpe and 1 more49 min
Mar 1, 10:02 PM ESTSpecial Weather StatementFFCBaldwin, Butts, Jasper, Jones, Lamar, Monroe and 1 more43 min
Mar 1, 10:42 PM ESTSpecial Weather StatementFFCBibb, Crawford, Twiggs48 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2016Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.