Alert archive / Georgia / Special Weather Statements in 2019

Special Weather Statement, NWS Atlanta, GA

August 4, 20199 counties in Georgia

NWS Atlanta, GA issued this special weather statement at Aug 4, 2019, 9:33 AM EDT for 9 counties in Georgia. It was in force for 57 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 4, 2019, 9:33 AM EDT (13:33 UTC)
Expired: Aug 4, 2019, 10:30 AM EDT
In force: 57 min
Issued by: NWS Atlanta, GA

Counties Barrow County, GA, Clarke County, GA, Forsyth County, GA, Hall County, GA, Jackson County, GA, Madison County, GA, Oconee County, GA, Oglethorpe County, GA, Wilkes County, GA

The radar

The Robins AFB radar (KJGX), 134 km from the middle of the area, began a volume at 13:34 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, 1.6 hours before the alert went out and 137 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 56 J/kg
Mixed-layer CIN: -143 J/kg
Mixed-layer LCL: 999 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: -38 m²/s²
0-3 km storm-relative helicity: -38 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

932 
WWUS82 KFFC 041333
SPSFFC

Special Weather Statement
National Weather Service Peachtree City GA
933 AM EDT Sun Aug 4 2019
 
GAZ014-022-023-025-027-034>039-047-049-041430-
Wilkes GA-Morgan GA-Dawson GA-Walton GA-Forsyth GA-Gwinnett GA-
Madison GA-Hall GA-Jackson GA-Barrow GA-Oglethorpe GA-Clarke GA-
Oconee GA-
933 AM EDT Sun Aug 4 2019

...SIGNIFICANT WEATHER ADVISORY FOR WILKES...NORTHERN MORGAN...
SOUTHEASTERN DAWSON...NORTHEASTERN WALTON...EASTERN FORSYTH...
NORTHEASTERN GWINNETT...MADISON...SOUTHERN HALL...JACKSON...BARROW...
OGLETHORPE...CLARKE AND OCONEE COUNTIES UNTIL 1030 AM EDT...

At 931 AM EDT...a line of showers and thunderstorms extended from 
Lake Lanier Islands to Bostwick and Washington, moving north at 10 
mph.

  HAZARD...Heavy rain.

  IMPACT...Heavy rain may cause temporary street flooding, 
           especially in poor drainage areas, and rising water on 
           creeks and streams.

Some locations in the path of these storms include
Gainesville, Winder, Monroe, Jefferson, Commerce, Cumming,
Washington, Watkinsville, Dawsonville, Danielsville, Lexington,
Athens, Sugar Hill, Suwanee, Buford, Braselton, Auburn, Flowery
Branch, Dacula and Oakwood.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should slow down and be prepared for possible loss of
control due to hydroplaning.

LAT...LON 3370 8293 3373 8295 3370 8299 3371 8306
      3370 8312 3376 8328 3373 8330 3370 8340
      3367 8338 3366 8345 3413 8418 3447 8410
      3421 8352 3412 8305 3403 8293 3401 8294
      3398 8286 3399 8265 3387 8261 3373 8261
TIME...MOT...LOC 1331Z 168DEG 10KT 3421 8406 3387 8353 3380 8271 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 3, 8:53 PM EDT	Special Weather Statement	FFC	Rockdale	37 min
Aug 4, 6:03 AM EDT	Special Weather Statement	FFC	Paulding	27 min
Aug 4, 10:30 AM EDT	Special Weather Statement	FFC	Barrow, Clarke, Hall, Jackson, Madison, Oconee and 1 more	60 min
Aug 4, 11:02 AM EDT	Areal Flood Warning	FFC	Clarke, Morgan, Oconee, Oglethorpe, Walton	4 hr
Aug 4, 11:12 AM EDT	Special Weather Statement	FFC	Banks, Jackson, Madison	63 min
Aug 4, 12:07 PM EDT	Areal Flood Warning	FFC	Banks, Barrow, Hall, Jackson, Madison	4 hr
Aug 4, 12:24 PM EDT	Special Weather Statement	FFC	Hall, White	66 min
Aug 4, 2:13 PM EDT	Special Weather Statement	FFC	Candler	17 min
Aug 4, 2:14 PM EDT	Special Weather Statement	FFC	Dooly	31 min
Aug 4, 2:54 PM EDT	Special Weather Statement	FFC	Toombs	36 min
Aug 4, 3:08 PM EDT	Special Weather Statement	FFC	Johnson, Washington	37 min
Aug 4, 3:16 PM EDT	Special Weather Statement	FFC	Dawson	29 min
Aug 4, 3:51 PM EDT	Special Weather Statement	FFC	Johnson	24 min
Aug 4, 3:58 PM EDT	Special Weather Statement	FFC	Laurens	32 min
Aug 4, 4:00 PM EDT	Special Weather Statement	FFC	Telfair	30 min
Aug 4, 4:04 PM EDT	Special Weather Statement	FFC	Gilmer	26 min
Aug 4, 4:16 PM EDT	Special Weather Statement	FFC	Emanuel	29 min
Aug 4, 5:07 PM EDT	Special Weather Statement	FFC	Montgomery, Toombs	23 min
Aug 4, 5:35 PM EDT	Special Weather Statement	FFC	Montgomery, Toombs	40 min
Aug 4, 5:42 PM EDT	Special Weather Statement	FFC	Taliaferro, Warren	33 min
Aug 4, 7:43 PM EDT	Special Weather Statement	FFC	Whitfield	32 min

Nearby

Special Weather Statements in Georgia, 2019 Every special weather statement in 2019

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.