Alert archive / Georgia / Special Weather Statements in 2021

Special Weather Statement, NWS Jacksonville, FL

August 23, 2021Brantley County, Georgia

NWS Jacksonville, FL issued this special weather statement at Aug 23, 2021, 3:21 PM EDT for Brantley County, Georgia. It was in force for 39 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 23, 2021, 3:21 PM EDT (19:21 UTC)
Expired
Aug 23, 2021, 4:00 PM EDT
In force
39 min
Issued by
NWS Jacksonville, FL
Hail
0.00 in
Wind
40

County Brantley County, GA

The radar

The Moody AFB radar (KVAX), 74 km from the middle of the area, began a volume at 19:21 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

Jacksonville, FL (KJAX), launched 12:00Z, 7.4 hours before the alert went out and 102 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 2021-08-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1299 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 2021-08-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -30 square meters per square second.193958Sfc1 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
1299 J/kg
Mixed-layer CIN
-34 J/kg
Mixed-layer LCL
823 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
-30 m²/s²
0-3 km storm-relative helicity
-27 m²/s²
Significant tornado parameter
0.0
Supercell composite
-1.0

Open this sounding in Storm Lab

The text

As transmitted.

070 
WWUS82 KJAX 231921
SPSJAX

Special Weather Statement
National Weather Service Jacksonville FL
321 PM EDT Mon Aug 23 2021
 
GAZ151>153-163-165-250-232000-
Pierce GA-Inland Glynn GA-Clinch GA-Inland Camden GA-Brantley GA-
Northern Ware GA-
321 PM EDT Mon Aug 23 2021

...A strong thunderstorm will impact portions of north central
Camden, west central Glynn, southern Pierce, Brantley, northern Ware
and north central Clinch Counties through 400 PM EDT...

At 321 PM EDT, Doppler radar was tracking a strong thunderstorm near
Manor, or 9 miles northeast of Argyle, moving east at 20 mph.

HAZARD...Winds in excess of 40 mph and minor flooding due to heavy 
         rainfall.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around 
         unsecured objects. Minor flooding due to heavy rainfall is 
         possible.

Locations impacted include...
Waycross, Blackshear, Nahunta, Argyle, Hickox, Boggy Bay, Pebble
Hill, Thalmann, Raybon and Waynesville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3118 8276 3119 8267 3124 8270 3129 8265
      3127 8263 3129 8263 3133 8174 3133 8172
      3134 8172 3134 8163 3114 8166 3105 8268
      3110 8284
TIME...MOT...LOC 1921Z 265DEG 16KT 3119 8257 

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

$$

HESS

The office that day

Everything else NWS Jacksonville, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 23, 12:57 PM EDTSpecial Weather StatementJAXBaker48 min
Aug 23, 1:25 PM EDTSpecial Weather StatementJAXNassau50 min
Aug 23, 1:39 PM EDTSevere Thunderstorm WarningJAXDuval, Nassau36 min
Aug 23, 1:42 PM EDTSpecial Marine WarningJAX93 min
Aug 23, 2:06 PM EDTSpecial Weather StatementJAXDuval, Nassau39 min
Aug 23, 2:14 PM EDTSpecial Weather StatementJAXClay46 min
Aug 23, 2:15 PM EDTSpecial Weather StatementJAXMarion30 min
Aug 23, 2:32 PM EDTSpecial Weather StatementJAXNassau28 min
Aug 23, 2:48 PM EDTSpecial Weather StatementJAXMarion27 min
Aug 23, 3:03 PM EDTSpecial Marine WarningJAX87 min
Aug 23, 2:04 PM EDTSpecial Weather StatementJAXCamden26 min
Aug 23, 3:07 PM EDTSpecial Weather StatementJAXGlynn23 min
Aug 23, 3:32 PM EDTSpecial Weather StatementJAXGlynn28 min
Aug 23, 3:51 PM EDTAreal Flood WarningJAXGlynn84 min
Aug 23, 4:09 PM EDTSpecial Weather StatementJAXWayne36 min
Aug 23, 4:47 PM EDTSpecial Weather StatementJAXWayne58 min
Aug 23, 5:07 PM EDTAreal Flood WarningJAXWayne113 min
Aug 23, 5:31 PM EDTSpecial Weather StatementJAXCoffee29 min
Aug 23, 6:12 PM EDTSpecial Weather StatementJAXCoffee63 min
Aug 23, 6:46 PM EDTAreal Flood WarningJAXCoffee119 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.