Alert archive / Georgia / Special Weather Statements in 2017

Special Weather Statement, NWS Atlanta, GA

August 10, 20174 counties in Georgia

NWS Atlanta, GA issued this special weather statement at Aug 10, 2017, 3:05 PM EDT for 4 counties in Georgia. It was in force for 25 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 10, 2017, 3:05 PM EDT (19:05 UTC)
Expired: Aug 10, 2017, 3:30 PM EDT
In force: 25 min
Issued by: NWS Atlanta, GA
Wind: 40

Counties Gwinnett County, GA, Haralson County, GA, Paulding County, GA, Polk County, GA

The radar

The Atlanta radar (KFFC), 68 km from the middle of the area, began a volume at 19:06 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, 7.1 hours before the alert went out and 69 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: 620 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 495 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 62 m²/s²
0-3 km storm-relative helicity: 94 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.8

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 10, 2:00 PM EDT, 1 hour 5 minutes earlier.

Area forecast discussion, Aug 10, 2:00 PM EDT, 1 hour 5 minutes before

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</head>
<body>
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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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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 10, 4:00 AM EDT, 11 hours 5 minutes before

Hazardous Weather Outlook
National Weather Service Peachtree City GA
400 AM EDT Thu Aug 10 2017

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-111000-
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-
400 AM EDT Thu Aug 10 2017

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

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

Isolated to scattered thunderstorms are expected. A few strong
storms are possible. The primary hazards will be gusty winds,
frequent lightning and very heavy rainfall. With soils at or
approaching saturation across much of north and central Georgia,
localized flooding is possible.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday...

There will be scattered thunderstorms each day, especially during
the afternoon and evening hours. A few storms could be strong with
the main hazards being gusty winds, frequent lightning and locally
heavy rain.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not requested, but spotters are encouraged to
submit reports of severe weather through the web by going to
weather.gov/atlanta.

In the hours before

Special weather statement, Aug 10, 1:10 PM EDT, 1 hour 55 minutes before

Special Weather Statement
National Weather Service Peachtree City GA
110 PM EDT THU AUG 10 2017

GAZ020-021-101745-
Cherokee GA-Bartow GA-
110 PM EDT THU AUG 10 2017

...SIGNIFICANT WEATHER ADVISORY FOR WESTERN CHEROKEE AND BARTOW
COUNTIES UNTIL 145 PM EDT...

At 109 PM EDT...a line of strong thunderstorms was along a line
extending from Pine Log to near Cartersville...and moving northeast
at 20 mph.

  HAZARD...Heavy rain...winds up to 40 mph...and pea sized hail.

  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 these storms include
Canton, Cartersville, Woodstock, Acworth, Holly Springs, Adairsville,
Euharlee, Emerson, White, Waleska, Cassville, Kellogg Creek, Red Top
Mountain State Park, Folsom, Hobgood Park, Funkhouser, Lake
Arrowhead, Oak Grove, Little River Landing and George Washington
Carver St Pk.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People outdoors should seek shelter immediately. Motorists should
slow down and be prepared for possible loss of control due to
hydroplaning.

LAT...LON 3440 8487 3440 8473 3441 8473 3441 8458
      3438 8458 3438 8444 3407 8448 3408 8474
      3408 8496
TIME...MOT...LOC 1709Z 228DEG 17KT 3433 8473 3416 8485

HAIL...0.25IN
WIND...40MPH

Special weather statement, Aug 10, 1:57 PM EDT, 1 hour 8 minutes before

Special Weather Statement
National Weather Service Peachtree City GA
157 PM EDT THU AUG 10 2017

GAZ002>005-007-101830-
Gilmer GA-Whitfield GA-Catoosa GA-Walker GA-Murray GA-
157 PM EDT THU AUG 10 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN GILMER...WHITFIELD...
SOUTHWESTERN CATOOSA...SOUTHERN WALKER AND MURRAY COUNTIES UNTIL 230
PM EDT...

At 157 PM EDT...a line of strong thunderstorms was along a line
extending from near Conasauga Lake to Lafayette...and moving
southeast at 10 mph.

  HAZARD...Heavy rain and winds up to 40 mph.

  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 these storms include
Dalton, Lafayette, Chatsworth, Ellijay, Varnell, Eton, Tunnel Hill,
East Ellijay, Crandall, Sumac, Conasauga Lake, Linwood, Villanow,
Cherry Log, Fort Mountain State Park, Naomi, Tails Creek, Ramhurst,
Suttles Mill and Noble.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People outdoors should seek shelter immediately. Motorists should
slow down and be prepared for possible loss of control due to
hydroplaning.

LAT...LON 3491 8462 3485 8462 3486 8449 3475 8428
      3461 8483 3462 8491 3463 8491 3462 8493
      3462 8506 3459 8506 3458 8511 3459 8531
      3471 8548 3476 8545 3495 8470
TIME...MOT...LOC 1757Z 297DEG 7KT 3485 8468 3471 8526

WIND...40MPH

Special weather statement, Aug 10, 2:33 PM EDT, 32 minutes before

Special Weather Statement
National Weather Service Peachtree City GA
233 PM EDT THU AUG 10 2017

GAZ002-004-005-007-011-012-019-101900-
Chattooga GA-Gilmer GA-Whitfield GA-Walker GA-Gordon GA-Murray GA-
Floyd GA-
233 PM EDT THU AUG 10 2017

...SIGNIFICANT WEATHER ADVISORY FOR CHATTOOGA...NORTHWESTERN
GILMER...SOUTHERN WHITFIELD...SOUTHERN WALKER...NORTHWESTERN
GORDON...MURRAY AND NORTHEASTERN FLOYD COUNTIES UNTIL 300 PM EDT...

At 232 PM EDT...a line of strong thunderstorms was along a line
extending from Chatsworth to Trion...and moving east at 15 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 these storms include
Dalton, Calhoun, Summerville, Chatsworth, Trion, Eton, Resaca, Center
Post, Crandall, Subligna, Lake Marvin, Conasauga Lake, Villanow, Fort
Mountain State Park, James H. Floyd State Park, Naomi, Tails Creek,
Ramhurst, Suttles Mill and Tidings.

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 3491 8472 3485 8462 3476 8436 3440 8530
      3456 8552 3459 8553
TIME...MOT...LOC 1832Z 261DEG 11KT 3478 8476 3454 8533

WIND...40MPH

Special weather statement, Aug 10, 3:05 PM EDT, 0 minutes before

Special Weather Statement
National Weather Service Peachtree City GA
305 PM EDT THU AUG 10 2017

GAZ020-021-030>034-041-101930-
Polk GA-North Fulton GA-Cobb GA-Cherokee GA-Haralson GA-Bartow GA-
Gwinnett GA-Paulding GA-
305 PM EDT THU AUG 10 2017

...SIGNIFICANT WEATHER ADVISORY FOR POLK...NORTH FULTON...NORTHERN
COBB...SOUTHERN CHEROKEE...HARALSON...SOUTHERN BARTOW...GWINNETT AND
PAULDING COUNTIES UNTIL 330 PM EDT...

At 304 PM EDT...a line of strong thunderstorms was along a line
extending from near Sweat Mountain to near Taylorsville to near Mars
Hills...and moving east at 20 mph.

  HAZARD...Heavy rain...up to 40 mph wind...and frequent cloud to
           ground lightning.

  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 these storms include
Marietta, Lawrenceville, Canton, Cartersville, Dallas, Cedartown,
Buchanan, Sandy Springs, Roswell, Johns Creek, Alpharetta, Dunwoody,
Milton, Kennesaw, Duluth, Woodstock, Acworth, Suwanee, Holly Springs
and Norcross.

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 3410 8520 3410 8505 3420 8504 3419 8430
      3417 8426 3410 8425 3405 8410 3408 8411
      3393 8387 3394 8427 3397 8433 3394 8435
      3394 8479 3381 8501 3381 8505 3378 8505
      3367 8521 3365 8530 3367 8534 3394 8540
TIME...MOT...LOC 1904Z 279DEG 17KT 3404 8445 3405 8499 3388 8536

WIND...40MPH

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 10, 1:10 PM EDT	Special Weather Statement	FFC	Bartow, Cherokee	35 min
Aug 10, 1:33 PM EDT	Flash Flood Warning	FFC	Bartow, Cherokee	6 hr
Aug 10, 1:57 PM EDT	Special Weather Statement	FFC	Murray, Walker, Whitfield	33 min
Aug 10, 2:33 PM EDT	Special Weather Statement	FFC	Chattooga, Murray, Whitfield	27 min
Aug 10, 3:13 PM EDT	Special Weather Statement	FFC	Macon, Schley	32 min
Aug 10, 3:42 PM EDT	Special Weather Statement	FFC	Chattooga, Gordon, Pickens	33 min
Aug 10, 3:55 PM EDT	Special Weather Statement	FFC	Banks, Hall, Jackson	35 min
Aug 10, 4:24 PM EDT	Special Weather Statement	FFC	Bartow, Cherokee, Floyd, Pickens	36 min
Aug 10, 4:47 PM EDT	Special Weather Statement	FFC	Carroll	28 min
Aug 10, 5:12 PM EDT	Special Weather Statement	FFC	Carroll, Douglas	33 min
Aug 10, 5:22 PM EDT	Special Weather Statement	FFC	DeKalb, Rockdale	23 min
Aug 10, 6:26 PM EDT	Special Weather Statement	FFC	Clayton, Coweta, DeKalb, Fayette, Heard, Henry and 2 more	34 min
Aug 10, 6:48 PM EDT	Special Weather Statement	FFC	Chattooga, Floyd	27 min
Aug 10, 7:32 PM EDT	Special Weather Statement	FFC	Harris, Heard, Troup	28 min
Aug 10, 7:37 PM EDT	Special Weather Statement	FFC	Clayton, Coweta, Fayette	38 min
Aug 10, 7:56 PM EDT	Special Weather Statement	FFC	Meriwether, Troup	34 min

Nearby

Special Weather Statements in Georgia, 2017 Every special weather statement in 2017

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.