Alert archive / Georgia / Special Weather Statements in 2017

Special Weather Statement, NWS Atlanta, GA

August 30, 2017Sumter County, Georgia

NWS Atlanta, GA issued this special weather statement at Aug 30, 2017, 3:22 PM EDT for Sumter County, Georgia. It was in force for 23 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 30, 2017, 3:22 PM EDT (19:22 UTC)
Expired: Aug 30, 2017, 3:45 PM EDT
In force: 23 min
Issued by: NWS Atlanta, GA
Wind: 50

County Sumter County, GA

The radar

The Robins AFB radar (KJGX), 95 km from the middle of the area, began a volume at 19:22 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, 7.4 hours before the alert went out and 154 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 898 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 26 m²/s²
0-3 km storm-relative helicity: 93 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 30, 2:24 PM EDT, 58 minutes earlier.

Area forecast discussion, Aug 30, 2:24 PM EDT, 58 minutes before

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      <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 30, 10:56 AM EDT, 4 hours 26 minutes before

Hazardous Weather Outlook
National Weather Service Peachtree City GA
1056 AM EDT Wed Aug 30 2017

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-311500-
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-
1056 AM EDT Wed Aug 30 2017

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

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

Isolated thunderstorms are possible this afternoon mainly across
southern portions of central Georgia. Overnight the isolated
threat could spread farther north, though nothing strong to severe
is expected. The main hazards will be occasional lightning and
locally heavy rainfall.

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

There will be a chance of thunderstorms on Thursday. There is a
marginal risk for brief tornados over far northwest Georgia,
along and northwest of a line from Carroll to Fannin counties.
Otherwise, the main hazards will be Occasional lightning and heavy
rainfall.

There will be a chance of thunderstorms across the area on Friday,
across mainly central Georgia Saturday through Monday, and across
the area on Tuesday. The main hazards will be occasional lightning
and locally heavy rainfall.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed through tonight.

In the hours before

Special weather statement, Aug 30, 2:04 PM EDT, 1 hour 18 minutes before

Special Weather Statement
National Weather Service Peachtree City GA
204 PM EDT WED AUG 30 2017

GAZ089-090-102-301830-
Chattahoochee GA-Stewart GA-Muscogee GA-
204 PM EDT WED AUG 30 2017

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN CHATTAHOOCHEE...
STEWART AND SOUTHERN MUSCOGEE COUNTIES UNTIL 230 PM EDT...

At 203 PM EDT...a line of strong thunderstorms was along a line
extending from near Seale to near Suttons Corner...and moving east at
30 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
Lumpkin, Richland, Fort Benning/lawson Army Air Fld, Charles, Sand
Hill, Westville, Battle Park, Jamestown/south Fort Benning, Troutman,
Omaha, Sanford, Custer Road Terrace, Louvale and Providence Canyon
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 3192 8491 3195 8496 3198 8496 3197 8504
      3199 8507 3209 8504 3213 8506 3218 8501
      3220 8496 3222 8498 3222 8493 3225 8492
      3226 8489 3230 8494 3233 8501 3238 8497
      3239 8499 3243 8488 3203 8465 3192 8466
TIME...MOT...LOC 1803Z 258DEG 26KT 3224 8517 3164 8483

WIND...50MPH

Special weather statement, Aug 30, 2:31 PM EDT, 51 minutes before

Special Weather Statement
National Weather Service Peachtree City GA
231 PM EDT WED AUG 30 2017

GAZ090>092-102>104-301915-
Schley GA-Chattahoochee GA-Stewart GA-Sumter GA-Marion GA-Webster GA-
231 PM EDT WED AUG 30 2017

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN SCHLEY...
SOUTHEASTERN CHATTAHOOCHEE...STEWART...SUMTER...SOUTHERN MARION AND
WEBSTER COUNTIES UNTIL 315 PM EDT...

At 231 PM EDT...a line of strong thunderstorms was along a line
extending from near Florence Marina State Park to near Brooksville to
near Red Store Crossroads...and moving east at 30 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
Americus, Lumpkin, Buena Vista, Preston, Richland, Plains, Leslie, De
Soto, Weston, Desoto, Sumter, Putnam, Brantley, Lamar, Seminole,
Westville, Croxton Crossroads, Brooklyn, Huntington and Renfroe.

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 3197 8444 3192 8446 3192 8491 3195 8496
      3198 8496 3199 8507 3209 8504 3213 8506
      3238 8455 3201 8405 3191 8398 3192 8434
      3187 8434
TIME...MOT...LOC 1831Z 248DEG 28KT 3210 8500 3183 8463 3141 8434

WIND...50MPH

Special weather statement, Aug 30, 3:22 PM EDT, 0 minutes before

Special Weather Statement
National Weather Service Peachtree City GA
322 PM EDT WED AUG 30 2017

GAZ104-301945-
Sumter GA-
322 PM EDT WED AUG 30 2017

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN SUMTER COUNTY UNTIL 345
PM EDT...

At 322 PM EDT...a strong thunderstorm was near Huntington, or 9 miles
south of Americus...moving northeast at 35 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 this storm include
Leslie, De Soto, Desoto, Cobb, Lamar, Methvins and Huntington.

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 3192 8423 3192 8424 3218 8404 3217 8403
      3215 8403 3213 8401 3212 8401 3209 8398
      3207 8399 3206 8398 3205 8398 3205 8397
      3202 8395 3199 8395 3193 8392 3191 8392
TIME...MOT...LOC 1922Z 232DEG 30KT 3195 8418

WIND...50MPH

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 30, 2:04 PM EDT	Special Weather Statement	FFC	Stewart	26 min
Aug 30, 2:31 PM EDT	Special Weather Statement	FFC	Marion, Stewart, Sumter, Webster	44 min
Aug 30, 3:01 PM EDT	Severe Thunderstorm Warning	FFC	Marion, Schley, Sumter, Webster	44 min
Aug 30, 3:44 PM EDT	Severe Thunderstorm Warning	FFC	Crisp, Dooly, Sumter	46 min
Aug 30, 4:27 PM EDT	Tornado Warning	FFC	Dodge, Telfair, Wilcox	48 min
Aug 30, 5:14 PM EDT	Severe Thunderstorm Warning	FFC	Telfair	46 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.