Alert archive / Georgia / Special Weather Statements in 2021

Special Weather Statement, NWS Charleston, SC

August 8, 2021Liberty County, Georgia

NWS Charleston, SC issued this special weather statement at Aug 8, 2021, 4:12 PM EDT for Liberty 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
Aug 8, 2021, 4:12 PM EDT (20:12 UTC)
Expired
Aug 8, 2021, 4:45 PM EDT
In force
33 min
Issued by
NWS Charleston, SC
Hail
0.00 in
Wind
55

County Liberty County, GA

The radar

The Charleston,SC radar (KCLX), 107 km from the middle of the area, began a volume at 20:15 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

Jacksonville, FL (KJAX), launched 12:00Z, 8.2 hours before the alert went out and 141 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, Jacksonville, FL at 12:00Z on 2021-08-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1388 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, Jacksonville, FL at 12:00Z on 2021-08-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 16 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
1388 J/kg
Mixed-layer CIN
-18 J/kg
Mixed-layer LCL
742 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
16 m²/s²
0-3 km storm-relative helicity
22 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

228 
WWUS82 KCHS 082012
SPSCHS

Special Weather Statement
National Weather Service Charleston SC
412 PM EDT Sun Aug 8 2021

GAZ116-117-137>141-082045-
Inland McIntosh-Coastal Liberty-Inland Liberty-Inland Bryan-Coastal
McIntosh-Coastal Bryan-Long-
412 PM EDT Sun Aug 8 2021

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF BRYAN, LIBERTY,
MCINTOSH AND LONG COUNTIES...

At 411 PM EDT, National Weather Service doppler radar indicated
strong thunderstorms along a line extending from Midway to near
Riceboro, and moving southeast at 15 mph.

HAZARD...strong winds 45 to 55 mph and excessive cloud to ground 
         lightning.

SOURCE...Radar Indicated.

IMPACT...Expect minor damage to tree limbs and blowing around of 
         light, unsecured objects. All outdoor activities should 
         cease. Move indoors immediately.

Some locations in the path of these storms include...
Jones, Midway, Riceboro, Halfmoon Landing, Harris Neck, Shellman
Bluff, Retreat and Pine Harbor.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with these storms and may lead
to flooding of low lying and poor drainage areas. Do not drive your
vehicle through flooded roadways.

Excessive cloud to ground lightning is occurring with these storms.
Lightning can strike 15 miles away from a thunderstorm. Seek safe
shelter inside a building or vehicle.

&&

LAT...LON 3151 8133 3168 8159 3187 8142 3182 8135
      3181 8135 3182 8134 3177 8127 3175 8125
      3176 8124 3171 8117
TIME...MOT...LOC 2011Z 308DEG 12KT 3180 8140 3170 8149 

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH

$$

The office that day

Everything else NWS Charleston, SC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 8, 2:46 PM EDTAreal Flood AdvisoryCHSBerkeley, Charleston119 min
Aug 8, 3:47 PM EDTSpecial Marine WarningCHS118 min
Aug 8, 4:23 PM EDTAreal Flood AdvisoryCHSCharleston48 min
Aug 8, 3:25 PM EDTAreal Flood AdvisoryCHSBryan, Chatham, Liberty82 min
Aug 8, 3:42 PM EDTSpecial Weather StatementCHSChatham33 min
Aug 8, 3:44 PM EDTSpecial Weather StatementCHSChatham31 min
Aug 8, 4:09 PM EDTSpecial Weather StatementCHSChatham36 min
Aug 8, 4:40 PM EDTSpecial Weather StatementCHSMcIntosh35 min
Aug 8, 5:14 PM EDTSpecial Weather StatementCHSMcIntosh16 min
Aug 8, 5:55 PM EDTAreal Flood AdvisoryCHSBulloch58 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.