Alert archive / Georgia / Special Weather Statements in 2020

Special Weather Statement, NWS Atlanta, GA

August 26, 2020Barrow County, Georgia

NWS Atlanta, GA issued this special weather statement at Aug 26, 2020, 2:36 PM EDT for Barrow County, Georgia. It was in force for 54 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 26, 2020, 2:36 PM EDT (18:36 UTC)
Expired: Aug 26, 2020, 3:30 PM EDT
In force: 54 min
Issued by: NWS Atlanta, GA

County Barrow County, GA

The radar

The Atlanta radar (KFFC), 104 km from the middle of the area, began a volume at 18:38 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, 6.6 hours before the alert went out and 100 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: 1444 J/kg
Mixed-layer CIN: -50 J/kg
Mixed-layer LCL: 662 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: 37 m²/s²
0-3 km storm-relative helicity: 43 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Atlanta, GA wrote its last area forecast discussion before this special weather statement went out at Aug 26, 1:33 PM EDT, 1 hour 3 minutes earlier.

Area forecast discussion, Aug 26, 1:33 PM EDT, 1 hour 3 minutes before

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</head>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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Hazardous weather outlook, Aug 26, 4:20 AM EDT, 10 hours 16 minutes before

Hazardous Weather Outlook
National Weather Service Peachtree City GA
420 AM EDT Wed Aug 26 2020

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-271000-
Baldwin-Banks-Barrow-Bartow-Bibb-Bleckley-Butts-Carroll-Catoosa-
Chattahoochee-Chattooga-Cherokee-Clarke-Clayton-Cobb-Coweta-
Crawford-Crisp-Dade-Dawson-DeKalb-Dodge-Dooly-Douglas-Emanuel-
Fannin-Fayette-Floyd-Forsyth-Gilmer-Glascock-Gordon-Greene-
Gwinnett-Hall-Hancock-Haralson-Harris-Heard-Henry-Houston-Jackson-
Jasper-Jefferson-Johnson-Jones-Lamar-Laurens-Lumpkin-Macon-
Madison-Marion-Meriwether-Monroe-Montgomery-Morgan-Murray-
Muscogee-Newton-North Fulton-Oconee-Oglethorpe-Paulding-Peach-
Pickens-Pike-Polk-Pulaski-Putnam-Rockdale-Schley-South Fulton-
Spalding-Stewart-Sumter-Talbot-Taliaferro-Taylor-Telfair-Toombs-
Towns-Treutlen-Troup-Twiggs-Union-Upson-Walker-Walton-Warren-
Washington-Webster-Wheeler-White-Whitfield-Wilcox-Wilkes-
Wilkinson-
420 AM EDT Wed Aug 26 2020

This Hazardous Weather Outlook is for portions of North and
Central Georgia.

.DAY ONE...Today and Tonight...

Isolated to scattered thunderstorms are expected over north and
central Georgia this afternoon and evening. A few storms will be
strong with gusty winds and frequent lightning. Locally heavy
rainfall can also be expected over north Georgia that could lead
to flash flooding concerns.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday...

Isolated to scattered thunderstorms can be expected on Thursday,
 and scattered to numerous thunderstorms can be expected Friday
through Tuesday. A few storms could be strong to severe with
strong to damaging winds, frequent lightning and locally heavy rainfall.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed through tonight.

In the hours before

Special weather statement, Aug 26, 2:36 PM EDT, 0 minutes before

Special Weather Statement
National Weather Service Peachtree City GA
236 PM EDT Wed Aug 26 2020

GAZ023-025-034-035-261930-
Hall GA-Jackson GA-Barrow GA-Gwinnett GA-
236 PM EDT Wed Aug 26 2020

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN HALL...WESTERN
JACKSON...NORTHWESTERN BARROW AND NORTHEASTERN GWINNETT COUNTIES
UNTIL 330 PM EDT...

At 235 PM EDT...a strong thunderstorm was over Chateau Elan, or 8
miles northwest of Winder...moving east at 10 mph.

  HAZARD...Heavy rain.

  IMPACT...Heavy rain may cause temporary street flooding especially
           in poor drainage areas.

Some locations in the path of this storm include
Winder, Braselton, Auburn, Flowery Branch, Hoschton, Carl, Road
Atlanta-Lanier Speedway, County Line, Thompsons Mill, Chateau Elan
and Hog Mountain.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

LAT...LON 3404 8396 3419 8396 3413 8364 3397 8365
TIME...MOT...LOC 1835Z 288DEG 7KT 3408 8382

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 26, 2:50 PM EDT	Special Weather Statement	FFC	Forsyth	25 min
Aug 26, 3:05 PM EDT	Special Weather Statement	FFC	Banks	25 min
Aug 26, 3:30 PM EDT	Special Weather Statement	FFC	Gwinnett	30 min
Aug 26, 3:49 PM EDT	Severe Thunderstorm Warning	FFC	Gwinnett	29 min
Aug 26, 4:38 PM EDT	Special Weather Statement	FFC	Wilkes	37 min
Aug 26, 5:14 PM EDT	Special Weather Statement	FFC	Taliaferro	31 min
Aug 26, 5:40 PM EDT	Special Weather Statement	FFC	Warren	35 min
Aug 26, 6:14 PM EDT	Special Weather Statement	FFC	Washington	31 min
Aug 26, 6:48 PM EDT	Special Weather Statement	FFC	Johnson, Washington	42 min

Nearby

Special Weather Statements in Georgia, 2020 Every special weather statement in 2020

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.