Alert archive / Georgia / Special Weather Statements in 2017

Special Weather Statement, NWS Atlanta, GA

July 13, 2017Harris County, Muscogee County, Troup County, Georgia

NWS Atlanta, GA issued this special weather statement at Jul 13, 2017, 8:30 PM EDT for Harris County, Muscogee County, Troup County, Georgia. It was in force for 45 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: Jul 13, 2017, 8:30 PM EDT (00:30 UTC)
Expired: Jul 13, 2017, 9:15 PM EDT
In force: 45 min
Issued by: NWS Atlanta, GA
Hail: 0.75 in
Wind: 50

Counties Harris County, GA, Muscogee County, GA, Troup County, GA

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 0.5 hours before the alert went out and 83 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: 954 J/kg
Mixed-layer CIN: -11 J/kg
Mixed-layer LCL: 1642 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: 3 m²/s²
0-3 km storm-relative helicity: -16 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 Jul 13, 8:30 PM EDT, 0 minutes earlier.

Area forecast discussion, Jul 13, 8:30 PM EDT, 0 minutes before

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Hazardous weather outlook, Jul 13, 8:05 PM EDT, 25 minutes before

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In the hours before

Special weather statement, Jul 13, 7:39 PM EDT, 51 minutes before

Special Weather Statement
National Weather Service Peachtree City GA
739 PM EDT THU JUL 13 2017

GAZ078-079-089-090-140015-
Chattahoochee GA-Harris GA-Talbot GA-Muscogee GA-
739 PM EDT THU JUL 13 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN CHATTAHOOCHEE...SOUTHERN
HARRIS...SOUTHWESTERN TALBOT AND MUSCOGEE COUNTIES UNTIL 815 PM
EDT...

At 739 PM EDT...a line of strong thunderstorms was along a line
extending from near Griffen Mill to near Upatoi...and moving
southwest at 10 mph.

  HAZARD...Winds up to 40 mph...pea sized hail 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
Columbus, Hamilton, Waverly Hall, North Fort Benning, Bibb City,
Upatoi, Ellerslie, Laurel Hills, Green Island Hills, Juniper, Vista
Terrace, Cataula, Columbus Metropolitan Airport, Baughville, Rose
Hill, Mountain Hill, Eelbeck/West Fort Benning, Benning Hills,
Avondale and Benning Park.

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 3273 8512 3277 8456 3252 8458 3253 8461
      3253 8463 3249 8464 3249 8466 3235 8466
      3237 8498 3238 8497 3239 8499 3239 8497
      3244 8497 3245 8500 3252 8500 3258 8507
      3263 8508 3264 8511 3266 8509 3269 8512
TIME...MOT...LOC 2339Z 051DEG 11KT 3255 8523 3251 8475

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

Local storm report, Jul 13, 8:03 PM EDT, 27 minutes before

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Local storm report, Jul 13, 8:14 PM EDT, 16 minutes before

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Special weather statement, Jul 13, 8:24 PM EDT, 6 minutes before

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Special weather statement, Jul 13, 8:26 PM EDT, 4 minutes before

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Special weather statement, Jul 13, 8:30 PM EDT, 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
Jul 13, 8:24 PM EDT	Special Weather Statement	FFC	Haralson	51 min
Jul 13, 8:26 PM EDT	Special Weather Statement	FFC	DeKalb	49 min
Jul 13, 9:16 PM EDT	Special Weather Statement	FFC	Troup	44 min
Jul 13, 9:19 PM EDT	Special Weather Statement	FFC	DeKalb	26 min
Jul 14, 3:19 PM EDT	Special Weather Statement	FFC	Floyd, Polk	26 min
Jul 14, 4:19 PM EDT	Special Weather Statement	FFC	Chattooga, Floyd	26 min
Jul 14, 4:32 PM EDT	Special Weather Statement	FFC	Catoosa, Dade, Walker	28 min
Jul 14, 4:50 PM EDT	Special Weather Statement	FFC	Bartow, Cherokee, Pickens	25 min
Jul 14, 4:58 PM EDT	Special Weather Statement	FFC	Chattooga	32 min
Jul 14, 5:21 PM EDT	Special Weather Statement	FFC	Bartow, Gilmer, Gordon, Pickens	24 min
Jul 14, 5:28 PM EDT	Special Weather Statement	FFC	Stewart, Webster	47 min
Jul 14, 5:34 PM EDT	Special Weather Statement	FFC	Chattooga	26 min
Jul 14, 5:42 PM EDT	Severe Thunderstorm Warning	FFC	Gilmer, Gordon, Murray	48 min
Jul 14, 5:47 PM EDT	Special Weather Statement	FFC	Troup	43 min
Jul 14, 5:54 PM EDT	Special Weather Statement	FFC	Cherokee, Dawson, Forsyth, Hall, Pickens	36 min
Jul 14, 6:11 PM EDT	Special Weather Statement	FFC	Fannin	34 min
Jul 14, 6:29 PM EDT	Special Weather Statement	FFC	Cherokee, Dawson, Forsyth, Hall, Lumpkin	31 min
Jul 14, 6:32 PM EDT	Special Weather Statement	FFC	Fannin, Gilmer, Gordon, Murray	28 min
Jul 14, 6:41 PM EDT	Special Weather Statement	FFC	Haralson, Paulding, Polk	34 min
Jul 14, 6:55 PM EDT	Flash Flood Warning	FFC	Cherokee, Dawson, Forsyth, Fulton, Lumpkin, Pickens	6 hr
Jul 14, 6:58 PM EDT	Flash Flood Warning	FFC	Gilmer, Murray, Whitfield	6 hr
Jul 14, 7:03 PM EDT	Special Weather Statement	FFC	Banks, DeKalb, Forsyth, Gwinnett, Hall	27 min
Jul 14, 7:15 PM EDT	Special Weather Statement	FFC	Harris	45 min
Jul 14, 7:22 PM EDT	Flash Flood Warning	FFC	Hall	6 hr
Jul 14, 7:23 PM EDT	Special Weather Statement	FFC	Cherokee, Cobb, Paulding	37 min
Jul 14, 7:30 PM EDT	Special Weather Statement	FFC	Fannin, Towns, Union	30 min
Jul 14, 7:33 PM EDT	Special Weather Statement	FFC	Gwinnett, Hall, White	27 min
Jul 14, 7:55 PM EDT	Special Weather Statement	FFC	Towns, Union	35 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.