Alert archive / Georgia / Special Weather Statements in 2018

Special Weather Statement, NWS Atlanta, GA

July 17, 2018Emanuel County, Georgia

NWS Atlanta, GA issued this special weather statement at Jul 17, 2018, 2:21 PM EDT for Emanuel 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
Jul 17, 2018, 2:21 PM EDT (18:21 UTC)
Expired
Jul 17, 2018, 2:45 PM EDT
In force
24 min
Issued by
NWS Atlanta, GA
Wind
40

County Emanuel County, GA

The radar

The Charleston,SC radar (KCLX), 102 km from the middle of the area, began a volume at 18:23 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

Charleston AFB, SC (KCHS), launched 12:00Z, 6.4 hours before the alert went out and 202 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, Charleston AFB, SC at 12:00Z on 2018-07-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1878 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Charleston AFB, SC at 12:00Z on 2018-07-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 55 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
1878 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
656 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
55 m²/s²
0-3 km storm-relative helicity
75 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

511 
WWUS82 KFFC 171821
SPSFFC

Special Weather Statement
National Weather Service Peachtree City GA
221 PM EDT TUE JUL 17 2018
 
GAZ086-171845-
Emanuel GA-
221 PM EDT TUE JUL 17 2018

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN EMANUEL COUNTY UNTIL
245 PM EDT...

At 221 PM EDT...a strong thunderstorm was over Swainsboro...moving
east 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
Swainsboro, Twin City, Garfield, Nunez, Dellwood, Modoc, Canoochee
and George L Smith State Park.

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 3254 8203 3254 8204 3256 8208 3252 8215
      3249 8217 3247 8236 3268 8241 3279 8213
      3266 8208 3263 8204 3256 8202
TIME...MOT...LOC 1821Z 252DEG 17KT 3262 8230 

WIND...40MPH

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 16, 8:01 PM EDTSpecial Weather StatementFFCFayette29 min
Jul 16, 8:13 PM EDTSpecial Weather StatementFFCPike32 min
Jul 16, 8:19 PM EDTSpecial Weather StatementFFCPolk26 min
Jul 16, 8:34 PM EDTSpecial Weather StatementFFCBartow26 min
Jul 16, 8:42 PM EDTSpecial Weather StatementFFCClayton33 min
Jul 16, 8:46 PM EDTSpecial Weather StatementFFCHaralson29 min
Jul 16, 8:59 PM EDTSevere Thunderstorm WarningFFCClayton, Henry, Spalding31 min
Jul 16, 9:07 PM EDTSpecial Weather StatementFFCBaldwin23 min
Jul 16, 9:19 PM EDTFlash Flood WarningFFCHaralson, Polk6 hr
Jul 16, 9:32 PM EDTSpecial Weather StatementFFCHenry28 min
Jul 16, 10:00 PM EDTSpecial Weather StatementFFCHenry, Newton, Rockdale30 min
Jul 16, 10:09 PM EDTSpecial Weather StatementFFCButts36 min
Jul 16, 10:20 PM EDTSpecial Weather StatementFFCJones25 min
Jul 16, 10:45 PM EDTSpecial Weather StatementFFCJones30 min
Jul 16, 11:26 PM EDTSpecial Weather StatementFFCJasper, Morgan, Putnam49 min
Jul 16, 11:27 PM EDTSpecial Weather StatementFFCBarrow, Jackson48 min
Jul 16, 11:59 PM EDTSpecial Weather StatementFFCGreene, Hancock, Jasper, Oglethorpe, Putnam, Taliaferro46 min
Jul 17, 12:21 AM EDTSpecial Weather StatementFFCGilmer, Murray, Pickens, Whitfield54 min
Jul 17, 1:25 PM EDTSpecial Weather StatementFFCTreutlen35 min
Jul 17, 1:51 PM EDTRiver Flood WarningFFCGwinnett5 hr
Jul 17, 2:02 PM EDTSpecial Weather StatementFFCTreutlen43 min
Jul 17, 2:11 PM EDTSevere Thunderstorm WarningFFCEmanuel, Montgomery, Toombs, Treutlen22 min
Jul 17, 2:44 PM EDTSpecial Weather StatementFFCCatoosa, Dade, Walker, Whitfield46 min
Jul 17, 2:45 PM EDTSpecial Weather StatementFFCToombs30 min
Jul 17, 2:46 PM EDTSpecial Weather StatementFFCEmanuel29 min
Jul 17, 3:29 PM EDTSpecial Weather StatementFFCCatoosa, Chattooga, Walker, Whitfield31 min
Jul 17, 4:02 PM EDTSpecial Weather StatementFFCChattooga, Gordon28 min
Jul 17, 4:14 PM EDTSpecial Weather StatementFFCMurray46 min
Jul 17, 4:18 PM EDTSpecial Weather StatementFFCDooly27 min
Jul 17, 4:32 PM EDTSpecial Weather StatementFFCChattooga, Floyd, Gordon28 min
Jul 17, 5:02 PM EDTSpecial Weather StatementFFCBaldwin28 min
Jul 17, 5:17 PM EDTSpecial Weather StatementFFCDade28 min
Jul 17, 5:21 PM EDTSpecial Weather StatementFFCTreutlen24 min
Jul 17, 5:41 PM EDTSpecial Weather StatementFFCWilkinson34 min
Jul 17, 5:47 PM EDTSpecial Weather StatementFFCTreutlen28 min
Jul 17, 5:50 PM EDTSpecial Weather StatementFFCDooly25 min
Jul 17, 5:58 PM EDTSevere Thunderstorm WarningFFCWilkinson32 min
Jul 17, 6:16 PM EDTSpecial Weather StatementFFCMontgomery, Treutlen29 min
Jul 17, 6:17 PM EDTSpecial Weather StatementFFCDooly28 min
Jul 17, 6:25 PM EDTSevere Thunderstorm WarningFFCDooly, Sumter35 min
Jul 17, 6:37 PM EDTSpecial Weather StatementFFCWilkinson23 min
Jul 17, 6:48 PM EDTSpecial Weather StatementFFCTreutlen27 min
Jul 17, 6:58 PM EDTSpecial Weather StatementFFCJohnson32 min
Jul 17, 7:00 PM EDTSpecial Weather StatementFFCDooly30 min
Jul 17, 7:30 PM EDTSpecial Weather StatementFFCCrisp, Dooly30 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.