Alert archive / Georgia / Special Weather Statements in 2018

Special Weather Statement, NWS Atlanta, GA

May 22, 2018Newton County, Georgia

NWS Atlanta, GA issued this special weather statement at May 22, 2018, 6:21 PM EDT for Newton 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
May 22, 2018, 6:21 PM EDT (22:21 UTC)
Expired
May 22, 2018, 6:45 PM EDT
In force
24 min
Issued by
NWS Atlanta, GA
Wind
40

County Newton County, GA

The radar

The Atlanta radar (KFFC), 61 km from the middle of the area, began a volume at 22:21 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 nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 10.4 hours before the alert went out and 56 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 12:00Z on 2018-05-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 333 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 12:00Z on 2018-05-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 square meters per square second.1939Sfc1 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
333 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
492 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
29 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

107 
WWUS82 KFFC 222221
SPSFFC

Special Weather Statement
National Weather Service Peachtree City GA
621 PM EDT TUE MAY 22 2018
 
GAZ046-048-222245-
Rockdale GA-Newton GA-
621 PM EDT TUE MAY 22 2018

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN ROCKDALE AND
NORTHWESTERN NEWTON COUNTIES UNTIL 645 PM EDT...

At 621 PM EDT...a strong thunderstorm was over Magnet, or near
Conyers...moving northeast at 20 mph.

  HAZARD...Up to 40 mph wind...frequent cloud to ground lightning 
           and heavy rain.

  IMPACT...Expect minor damage to tree limbs and blowing around of 
           light...unsecured objects. Heavy rain may cause temporary 
           street flooding especially in poor drainage areas.

Some locations in the path of this storm include
Conyers, Covington, Oxford, Porterdale, Georgia International Horse
Park, Magnet, Almon, Milstead and Oak Hill.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People outdoors should seek shelter immediately. If you can hear
thunder...you are close enough to be struck by lightning. Motorists
should slow down and be prepared for possible loss of control due to
hydroplaning.

LAT...LON 3351 8398 3354 8404 3371 8399 3363 8379
TIME...MOT...LOC 2221Z 212DEG 17KT 3357 8398 

WIND...40MPH

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 22, 4:25 PM EDTSpecial Weather StatementFFCWheeler35 min
May 22, 4:51 PM EDTSpecial Weather StatementFFCLaurens24 min
May 22, 5:17 PM EDTSpecial Weather StatementFFCLaurens28 min
May 22, 5:22 PM EDTSpecial Weather StatementFFCGordon23 min
May 22, 5:28 PM EDTSpecial Weather StatementFFCDooly32 min
May 22, 5:49 PM EDTSpecial Weather StatementFFCCobb26 min
May 22, 5:52 PM EDTSpecial Weather StatementFFCJefferson38 min
May 22, 5:54 PM EDTSpecial Weather StatementFFCHouston36 min
May 22, 6:13 PM EDTSpecial Weather StatementFFCCherokee32 min
May 22, 6:16 PM EDTSpecial Weather StatementFFCMeriwether, Pike29 min
May 22, 6:19 PM EDTSpecial Weather StatementFFCWilcox26 min
May 22, 6:44 PM EDTSpecial Weather StatementFFCBartow31 min
May 22, 6:45 PM EDTSpecial Weather StatementFFCBleckley, Pulaski30 min
May 22, 7:12 PM EDTSpecial Weather StatementFFCBleckley, Twiggs48 min

Nearby

Special Weather Statements in Georgia, 2018Every special weather statement in 2018

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.