Alert archive / Georgia / Special Weather Statements in 2017

Special Weather Statement, NWS Atlanta, GA

March 10, 201716 counties in Georgia

NWS Atlanta, GA issued this special weather statement at Mar 10, 2017, 6:37 AM EST for 16 counties in Georgia. It was in force for 38 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: Mar 10, 2017, 6:37 AM EST (11:37 UTC)
Expired: Mar 10, 2017, 7:15 AM EST
In force: 38 min
Issued by: NWS Atlanta, GA
Wind: 50

Counties Bleckley County, GA, Crisp County, GA, Dodge County, GA, Dooly County, GA, Emanuel County, GA, Johnson County, GA, Laurens County, GA, Montgomery County, GA, Pulaski County, GA, Sumter County, GA, Telfair County, GA, Toombs County, GA, Treutlen County, GA, Webster County, GA, Wheeler County, GA, Wilcox County, GA

The radar

The Robins AFB radar (KJGX), 60 km from the middle of the area, began a volume at 11:40 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 00:00Z, 11.6 hours before the alert went out and 176 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: 2857 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 42 m²/s²
0-3 km storm-relative helicity: 102 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 Mar 10, 6:35 AM EST, 2 minutes earlier.

Area forecast discussion, Mar 10, 6:35 AM EST, 2 minutes before

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Hazardous weather outlook, Mar 10, 5:29 AM EST, 1 hour 8 minutes before

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In the hours before

Special weather statement, Mar 10, 3:39 AM EST, 2 hours 58 minutes before

Special Weather Statement
National Weather Service Peachtree City GA
339 AM EST FRI MAR 10 2017

GAZ014>016-021>025-027-030>035-037-041>047-052>055-057-100930-
Fayette GA-Coweta GA-Heard GA-Henry GA-Hall GA-Jackson GA-
North Fulton GA-Barrow GA-Cobb GA-Cherokee GA-Oconee GA-Banks GA-
Dawson GA-Walton GA-Rockdale GA-Carroll GA-Forsyth GA-Gwinnett GA-
White GA-Paulding GA-Lumpkin GA-South Fulton GA-Madison GA-Polk GA-
Douglas GA-Clayton GA-Haralson GA-DeKalb GA-
339 AM EST FRI MAR 10 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN FAYETTE...
NORTHWESTERN COWETA...NORTHERN HEARD...NORTHERN HENRY...HALL...
JACKSON...NORTH FULTON...BARROW...COBB...SOUTHERN CHEROKEE...
NORTHWESTERN OCONEE...BANKS...SOUTHEASTERN DAWSON...NORTHWESTERN
WALTON...ROCKDALE...CARROLL...FORSYTH...GWINNETT...SOUTHERN WHITE...
PAULDING...SOUTHEASTERN LUMPKIN...SOUTH FULTON...NORTHWESTERN
MADISON...SOUTHEASTERN POLK...DOUGLAS...NORTHERN CLAYTON...HARALSON
AND DEKALB COUNTIES UNTIL 430 AM EST...

At 337 AM EST...a line of strong thunderstorms extended from near
Cleveland to Alpharetta and Carrollton...moving southeast at 50 mph.

  HAZARD...40 to 50 mph wind, up to penny sized hail and frequent
           cloud to ground lightning.

  IMPACT...Expect minor damage to tree limbs and blowing around of
           light, unsecured objects.

Some locations in the path of these storms include
Atlanta, Marietta, Gainesville, Newnan, Douglasville, Lawrenceville,
Carrollton, Decatur, Conyers, Winder, Monroe, Dallas, Jefferson,
Commerce, Cumming, Dahlonega, Jonesboro, Cleveland, Homer and
Buchanan.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People outdoors should seek shelter immediately. If you can hear
thunder...you are close enough to be struck by lightning.

LAT...LON 3408 8466 3419 8438 3477 8363 3465 8366
      3455 8362 3449 8366 3443 8361 3449 8354
      3447 8342 3432 8339 3424 8334 3426 8330
      3425 8323 3421 8327 3383 8369 3372 8388
      3374 8391 3370 8392 3322 8522 3388 8538
TIME...MOT...LOC 0837Z 296DEG 42KT 3467 8357 3413 8416 3361 8530

HAIL...0.75IN
WIND...50MPH

Special weather statement, Mar 10, 4:13 AM EST, 2 hours 24 minutes before

Special Weather Statement
National Weather Service Peachtree City GA
413 AM EST FRI MAR 10 2017

GAZ025-027-033>039-042>060-066>068-070-071-101015-
Taliaferro GA-Wilkes GA-Butts GA-Morgan GA-Putnam GA-Fayette GA-
Monroe GA-Coweta GA-Heard GA-Meriwether GA-Newton GA-Pike GA-
Henry GA-Jackson GA-North Fulton GA-Barrow GA-Spalding GA-Oconee GA-
Walton GA-Rockdale GA-Carroll GA-Gwinnett GA-Troup GA-Jasper GA-
South Fulton GA-Madison GA-Lamar GA-Douglas GA-Clayton GA-DeKalb GA-
Oglethorpe GA-Clarke GA-Greene GA-
413 AM EST FRI MAR 10 2017

...SIGNIFICANT WEATHER ADVISORY FOR TALIAFERRO...WILKES...BUTTS...
MORGAN...NORTHERN PUTNAM...FAYETTE...NORTHERN MONROE...COWETA...
HEARD...MERIWETHER...NEWTON...PIKE...HENRY...SOUTHERN JACKSON...NORTH
FULTON...BARROW...SPALDING...OCONEE...WALTON...ROCKDALE...
SOUTHEASTERN CARROLL...SOUTHEASTERN GWINNETT...TROUP...JASPER...SOUTH
FULTON...MADISON...LAMAR...SOUTHERN DOUGLAS...CLAYTON...DEKALB...
OGLETHORPE...CLARKE AND GREENE COUNTIES UNTIL 515 AM EST...

At 410 AM EST...a line of strong thunderstorms extended from near
Homer to Loganville and Carrollton...moving southeast at 55 mph.

  HAZARD...40 to 50 mph wind, up to penny sized hail and frequent
           cloud-to-ground lightning.

  IMPACT...Expect minor damage to tree limbs and blowing around of
           light, unsecured objects.

Some locations in the path of these storms include
Atlanta, Newnan, Lagrange, Lawrenceville, Griffin, McDonough,
Decatur, Fayetteville, Conyers, Winder, Monroe, Covington, Jefferson,
Barnesville, Commerce, Eatonton, Jackson, Jonesboro, Washington and
Madison.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People outdoors should seek shelter immediately. If you can hear
thunder...you are close enough to be struck by lightning.

LAT...LON 3376 8433 3426 8329 3418 8310 3401 8293
      3399 8266 3386 8261 3387 8257 3383 8260
      3367 8250 3302 8401 3299 8449 3297 8452
      3296 8453 3296 8452 3287 8519 3344 8530
TIME...MOT...LOC 0910Z 298DEG 47KT 3417 8325 3377 8404 3345 8484 3332
8548

HAIL...0.75IN
WIND...50MPH

Local storm report, Mar 10, 4:23 AM EST, 2 hours 14 minutes before

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Special weather statement, Mar 10, 5:12 AM EST, 1 hour 25 minutes before

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Special weather statement, Mar 10, 5:55 AM EST, 42 minutes before

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Special weather statement, Mar 10, 6:37 AM EST, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 10, 1:36 AM EST	Severe Thunderstorm Warning	FFC	Catoosa, Chattooga, Dade, Walker	39 min
Mar 10, 2:12 AM EST	Special Weather Statement	FFC	Chattooga, Murray, Whitfield	48 min
Mar 10, 2:35 AM EST	Special Weather Statement	FFC	Bartow, Fannin, Floyd, Gilmer, Gordon, Pickens	40 min
Mar 10, 3:11 AM EST	Special Weather Statement	FFC	Carroll, Cherokee, Cobb, Dawson, Douglas, Forsyth and 9 more	34 min
Mar 10, 3:28 AM EST	Severe Thunderstorm Warning	FFC	Cherokee, Forsyth, Gwinnett, Hall	32 min
Mar 10, 3:39 AM EST	Special Weather Statement	FFC	Banks, Barrow, Carroll, Clayton, Cobb, DeKalb and 10 more	51 min
Mar 10, 4:13 AM EST	Special Weather Statement	FFC	Barrow, Butts, Clarke, Clayton, Coweta, DeKalb and 20 more	62 min
Mar 10, 4:52 AM EST	Severe Thunderstorm Warning	FFC	Troup	21 min
Mar 10, 4:57 AM EST	Severe Thunderstorm Warning	FFC	Butts, Jasper, Monroe	21 min
Mar 10, 5:12 AM EST	Special Weather Statement	FFC	Baldwin, Bibb, Chattahoochee, Crawford, Glascock, Greene and 21 more	48 min
Mar 10, 5:55 AM EST	Special Weather Statement	FFC	Bleckley, Chattahoochee, Crawford, Crisp, Dodge, Dooly and 20 more	50 min
Mar 10, 7:09 AM EST	Special Weather Statement	FFC	Montgomery, Telfair, Toombs, Wheeler, Wilcox	51 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.