Alert archive / Georgia / Special Weather Statements in 2021

Special Weather Statement, NWS Atlanta, GA

June 30, 2021Peach County, Twiggs County, Georgia

NWS Atlanta, GA issued this special weather statement at Jun 30, 2021, 4:12 PM EDT for Peach County, Twiggs County, Georgia. It was in force for 33 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
Jun 30, 2021, 4:12 PM EDT (20:12 UTC)
Expired
Jun 30, 2021, 4:45 PM EDT
In force
33 min
Issued by
NWS Atlanta, GA
Wind
40

Counties Peach County, GA, Twiggs County, GA

The radar

The Robins AFB radar (KJGX), 45 km from the middle of the area, began a volume at 20:11 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, 8.2 hours before the alert went out and 109 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 2021-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 396 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 2021-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 26 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
396 J/kg
Mixed-layer CIN
-65 J/kg
Mixed-layer LCL
954 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
26 m²/s²
0-3 km storm-relative helicity
25 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

267 
WWUS82 KFFC 302012
SPSFFC

Special Weather Statement
National Weather Service Peachtree City GA
412 PM EDT Wed Jun 30 2021
 
GAZ072-081>084-093>095-302045-
Macon GA-Peach GA-Wilkinson GA-Bibb GA-Houston GA-Crawford GA-
Jones GA-Twiggs GA-
412 PM EDT Wed Jun 30 2021

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN MACON...PEACH...
WESTERN WILKINSON...SOUTHEASTERN BIBB...HOUSTON...SOUTHEASTERN
CRAWFORD...SOUTHEASTERN JONES AND TWIGGS COUNTIES UNTIL 445 PM EDT...

At 412 PM EDT...a line of strong thunderstorms was along a line
extending from Fitzpatrick to near Saint Louis...and moving northwest
at 25 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 these storms include
Macon, Perry, Fort Valley, Jeffersonville, Warner Robins,
Centerville, Byron, Gordon, Marshallville, Robins Air Force Base,
Marion, Meadowdale, Houston Lake, Mountain Springs, Griswoldville,
Powerville, Moss Oak, Skipperton, Miami Valley and Saint Louis.

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 3231 8383 3251 8405 3251 8404 3250 8403
      3250 8402 3252 8401 3252 8403 3253 8400
      3254 8401 3275 8375 3297 8337 3296 8337
      3271 8330 3253 8361
TIME...MOT...LOC 2012Z 151DEG 20KT 3274 8344 3241 8388 

WIND...40MPH

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 29, 8:12 PM EDTSpecial Weather StatementFFCHouston33 min
Jun 29, 8:33 PM EDTSpecial Weather StatementFFCTwiggs27 min
Jun 30, 2:37 PM EDTSpecial Weather StatementFFCTelfair23 min
Jun 30, 3:02 PM EDTSpecial Weather StatementFFCStewart28 min
Jun 30, 3:07 PM EDTSpecial Weather StatementFFCTreutlen23 min
Jun 30, 3:30 PM EDTSpecial Weather StatementFFCPulaski30 min
Jun 30, 3:36 PM EDTSpecial Weather StatementFFCEmanuel24 min
Jun 30, 4:17 PM EDTSpecial Weather StatementFFCJohnson28 min
Jun 30, 4:42 PM EDTSpecial Weather StatementFFCCrisp33 min
Jun 30, 4:54 PM EDTSpecial Weather StatementFFCPeach21 min
Jun 30, 5:28 PM EDTSpecial Weather StatementFFCJackson32 min
Jun 30, 6:12 PM EDTSpecial Weather StatementFFCBarrow33 min
Jun 30, 6:46 PM EDTSpecial Weather StatementFFCGwinnett14 min
Jun 30, 7:11 PM EDTSpecial Weather StatementFFCForsyth19 min

Nearby

Special Weather Statements in Georgia, 2021Every special weather statement in 2021

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.