Alert archive / Georgia / Special Weather Statements in 2020

Special Weather Statement, NWS Atlanta, GA

August 19, 2020Gilmer County, Pickens County, Georgia

NWS Atlanta, GA issued this special weather statement at Aug 19, 2020, 1:35 PM EDT for Gilmer County, Pickens County, 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 19, 2020, 1:35 PM EDT (17:35 UTC)
Expired
Aug 19, 2020, 2:00 PM EDT
In force
25 min
Issued by
NWS Atlanta, GA
Wind
40

Counties Gilmer County, GA, Pickens County, GA

The radar

The Atlanta radar (KFFC), 135 km from the middle of the area, began a volume at 17:38 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, 5.6 hours before the alert went out and 134 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, Peachtre/Fal Fld, GA at 12:00Z on 2020-08-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 691 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, Peachtre/Fal Fld, GA at 12:00Z on 2020-08-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -24 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
691 J/kg
Mixed-layer CIN
-94 J/kg
Mixed-layer LCL
1065 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
-24 m²/s²
0-3 km storm-relative helicity
35 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 19, 7:49 AM EDT, 5 hours 46 minutes earlier.

Area forecast discussion, Aug 19, 7:49 AM EDT, 5 hours 46 minutes before
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Hazardous weather outlook, Aug 19, 12:24 PM EDT, 1 hour 11 minutes before
Hazardous Weather Outlook
National Weather Service Peachtree City GA
1224 PM EDT Wed Aug 19 2020

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-201630-
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-
1224 PM EDT Wed Aug 19 2020

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

.DAY ONE...This Afternoon and Tonight...

Scattered to numerous thunderstorms are forecast this afternoon
and evening across north and central Georgia. Some thunderstorms
may linger overnight. A few storms could be strong with an
isolated severe storm possible. The main threats will be locally
heavy rainfall, strong to damaging winds, and cloud-to-ground
lightning.

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

Numerous thunderstorms are expected Thursday through Saturday
across much of the forecast area. Scattered thunderstorms are
forecast Sunday through Tuesday. A few storms could be strong to
severe each day, with strong to damaging winds, frequent
lightning, small hail, and locally heavy rainfall.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed through tonight.

In the hours before

Special weather statement, Aug 19, 7:44 AM EDT, 5 hours 51 minutes before
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Special weather statement, Aug 19, 12:55 PM EDT, 40 minutes before
Special Weather Statement
National Weather Service Peachtree City GA
1255 PM EDT Wed Aug 19 2020

GAZ001-002-011-191730-
Chattooga GA-Walker GA-Dade GA-
1255 PM EDT Wed Aug 19 2020

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN CHATTOOGA...WESTERN
WALKER AND DADE COUNTIES UNTIL 130 PM EDT...

At 1254 PM EDT...a line of strong thunderstorms was along a line
extending from near Stephensville to near Sulpher Springs...and
moving south at 5 mph.

  HAZARD...40 to 50 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
Trenton, Stephensville, Rising Fawn, New England, Morganville,
Hooker, Cloudland Canyon State Park, Cooper Heights, Cole City and
Wildwood.

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 3498 8538 3454 8535 3458 8553 3486 8559
      3498 8560
TIME...MOT...LOC 1654Z 339DEG 4KT 3492 8559 3465 8554

WIND...50MPH
Special weather statement, Aug 19, 1:32 PM EDT, 3 minutes before
Special Weather Statement
National Weather Service Peachtree City GA
132 PM EDT Wed Aug 19 2020

GAZ001-002-011-191800-
Chattooga GA-Walker GA-Dade GA-
132 PM EDT Wed Aug 19 2020

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN CHATTOOGA...WALKER
AND DADE COUNTIES UNTIL 200 PM EDT...

At 132 PM EDT...a line of strong thunderstorms was along a line
extending from Morganville to near Sulpher Springs...and moving east
at 10 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
Lafayette, Trenton, Fort Oglethorpe, Chickamauga, Trion, Lookout
Mountain, Center Post, Rising Fawn, Noble, Wildwood, Fairview,
Linwood, Cloudland, Chattanooga  Valley, New England, Morganville,
Hooker, Cloudland Canyon State Park, Cooper Heights and Rock Spring.

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 3486 8526 3485 8523 3451 8530 3450 8551
      3476 8556 3498 8553 3498 8526
TIME...MOT...LOC 1732Z 282DEG 10KT 3495 8545 3467 8551

WIND...40MPH
Special weather statement, Aug 19, 1:35 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service Peachtree City GA
135 PM EDT Wed Aug 19 2020

GAZ007-013-014-021-191800-
Gilmer GA-Dawson GA-Cherokee GA-Pickens GA-
135 PM EDT Wed Aug 19 2020

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN GILMER...WESTERN
DAWSON...NORTHWESTERN CHEROKEE AND PICKENS COUNTIES UNTIL 200 PM
EDT...

At 134 PM EDT...a line of strong thunderstorms was along a line
extending from Roundtop to near Talmadge. These storms were nearly
stationary.

  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
Jasper, Ellijay, Nelson, Waleska, East Ellijay, Talking Rock,
Sequoyah Lake, Talona, Tails Creek, Marblehill, Fausett Lake,
Cartecay, Salacoa Valley, Blaine, Lake Tamarack, Talmadge, Tate, Roy,
Hinton and Roundtop.

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 3472 8436 3442 8423 3430 8458 3459 8466
      3469 8465
TIME...MOT...LOC 1734Z 246DEG 2KT 3462 8455 3441 8450

WIND...40MPH

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 18, 9:38 PM EDTSpecial Weather StatementFFCClayton52 min
Aug 18, 9:42 PM EDTSevere Thunderstorm WarningFFCClayton, Coweta, Douglas, Fayette, Fulton36 min
Aug 18, 9:51 PM EDTSpecial Weather StatementFFCSumter24 min
Aug 19, 7:44 AM EDTSpecial Weather StatementFFCMurray31 min
Aug 19, 12:55 PM EDTSpecial Weather StatementFFCDade35 min
Aug 19, 1:32 PM EDTSpecial Weather StatementFFCDade, Walker28 min
Aug 19, 2:08 PM EDTFlash Flood WarningFFCDade6 hr
Aug 19, 2:20 PM EDTSpecial Weather StatementFFCDawson25 min
Aug 19, 2:22 PM EDTSpecial Weather StatementFFCWhitfield38 min
Aug 19, 2:24 PM EDTSpecial Weather StatementFFCGilmer36 min
Aug 19, 2:37 PM EDTSevere Thunderstorm WarningFFCCatoosa, Whitfield23 min
Aug 19, 2:43 PM EDTSpecial Weather StatementFFCWhite32 min
Aug 19, 2:50 PM EDTSevere Thunderstorm WarningFFCMurray, Whitfield25 min
Aug 19, 3:11 PM EDTSevere Thunderstorm WarningFFCMurray, Whitfield34 min
Aug 19, 3:13 PM EDTSpecial Weather StatementFFCWhite32 min
Aug 19, 3:33 PM EDTSpecial Weather StatementFFCBartow27 min
Aug 19, 3:45 PM EDTSpecial Weather StatementFFCMurray30 min
Aug 19, 3:55 PM EDTSpecial Weather StatementFFCBartow, Floyd, Gordon35 min
Aug 19, 4:28 PM EDTSpecial Weather StatementFFCChattooga, Floyd, Gordon32 min
Aug 19, 5:09 PM EDTSpecial Weather StatementFFCCherokee36 min
Aug 19, 5:12 PM EDTSpecial Weather StatementFFCCarroll, Douglas33 min
Aug 19, 5:36 PM EDTSpecial Weather StatementFFCJackson24 min
Aug 19, 5:42 PM EDTSpecial Weather StatementFFCCarroll, Cherokee, Cobb, Douglas, Forsyth, Fulton33 min
Aug 19, 5:51 PM EDTSevere Thunderstorm WarningFFCCherokee, Cobb, Fulton28 min
Aug 19, 5:58 PM EDTSpecial Weather StatementFFCJackson32 min
Aug 19, 6:28 PM EDTSpecial Weather StatementFFCClarke32 min
Aug 19, 6:29 PM EDTSpecial Weather StatementFFCDeKalb, Fulton, Gwinnett31 min
Aug 19, 6:36 PM EDTSpecial Weather StatementFFCHeard24 min
Aug 19, 6:57 PM EDTSpecial Weather StatementFFCClarke33 min
Aug 19, 7:05 PM EDTSpecial Weather StatementFFCOconee25 min
Aug 19, 7:07 PM EDTSpecial Weather StatementFFCCoweta23 min
Aug 19, 7:08 PM EDTSpecial Weather StatementFFCGwinnett37 min
Aug 19, 7:18 PM EDTSpecial Weather StatementFFCGreene27 min
Aug 19, 7:22 PM EDTSpecial Weather StatementFFCWilkes23 min
Aug 19, 7:28 PM EDTSpecial Weather StatementFFCCoweta32 min
Aug 19, 7:45 PM EDTSpecial Weather StatementFFCGreene30 min
Aug 19, 7:47 PM EDTSpecial Weather StatementFFCWilkes28 min
Aug 19, 7:58 PM EDTSpecial Weather StatementFFCCoweta32 min

Nearby

Special Weather Statements in Georgia, 2020Every 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.