Alert archive / Georgia / Special Weather Statements in 2019

Special Weather Statement, NWS Atlanta, GA

July 31, 2019Hall County, Georgia

NWS Atlanta, GA issued this special weather statement at Jul 31, 2019, 10:43 PM EDT for Hall County, Georgia. It was in force for 32 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 31, 2019, 10:43 PM EDT (02:43 UTC)
Expired: Jul 31, 2019, 11:15 PM EDT
In force: 32 min
Issued by: NWS Atlanta, GA
Wind: 40

County Hall County, GA

The radar

The Atlanta radar (KFFC), 111 km from the middle of the area, began a volume at 02:45 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, 2.7 hours before the alert went out and 107 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: 679 J/kg
Mixed-layer CIN: -32 J/kg
Mixed-layer LCL: 1726 m above ground
0-6 km bulk shear: 1 kt
0-1 km storm-relative helicity: -4 m²/s²
0-3 km storm-relative helicity: 6 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 31, 10:23 PM EDT, 20 minutes earlier.

Area forecast discussion, Jul 31, 10:23 PM EDT, 20 minutes before

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Hazardous weather outlook, Jul 31, 10:39 PM EDT, 4 minutes before

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In the hours before

Special weather statement, Jul 31, 8:26 PM EDT, 2 hours 17 minutes before

Special Weather Statement
National Weather Service Peachtree City GA
826 PM EDT Wed Jul 31 2019

GAZ022-033-010100-
North Fulton GA-Forsyth GA-
826 PM EDT Wed Jul 31 2019

...SIGNIFICANT WEATHER ADVISORY FOR NORTH FULTON AND SOUTHWESTERN
FORSYTH COUNTIES UNTIL 900 PM EDT...

At 826 PM EDT...a strong thunderstorm was over Milton, or 10 miles
southwest of Cumming...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 this storm include
Cumming, Roswell, Johns Creek, Alpharetta, Milton, Sugar Hill, Drew,
Brookwood and Birmingham.

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 3419 8405 3415 8408 3410 8411 3407 8412
      3405 8410 3403 8412 3403 8417 3401 8418
      3402 8436 3412 8437 3413 8436 3417 8435
      3419 8433 3419 8426 3423 8426 3427 8406
TIME...MOT...LOC 0026Z 264DEG 12KT 3412 8428

WIND...40MPH

Special weather statement, Jul 31, 9:16 PM EDT, 1 hour 27 minutes before

Special Weather Statement
National Weather Service Peachtree City GA
916 PM EDT Wed Jul 31 2019

GAZ034-045-010145-
DeKalb GA-Gwinnett GA-
916 PM EDT Wed Jul 31 2019

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN DEKALB AND SOUTHERN
GWINNETT COUNTIES UNTIL 945 PM EDT...

At 916 PM EDT...a strong thunderstorm was over Mountain Park, or 9
miles southwest of Lawrenceville...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 this storm include
Lawrenceville, Snellville, Lilburn, Stone Mountain, Dacula, Grayson,
Tucker, Mountain Park, Redan and Rosebud.

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 3402 8388 3389 8385 3375 8403 3374 8415
      3391 8420
TIME...MOT...LOC 0116Z 257DEG 14KT 3385 8410

WIND...40MPH

Special weather statement, Jul 31, 9:49 PM EDT, 54 minutes before

Special Weather Statement
National Weather Service Peachtree City GA
949 PM EDT Wed Jul 31 2019

GAZ034-010215-
Gwinnett GA-
949 PM EDT Wed Jul 31 2019

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN GWINNETT COUNTY
UNTIL 1015 PM EDT...

At 948 PM EDT...a strong thunderstorm was over Snellville, or near
Lawrenceville...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 this storm include
Lawrenceville, Snellville, Lilburn, Dacula, Grayson, Mountain Park,
Harbin and Rosebud.

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 3402 8386 3400 8387 3398 8384 3392 8381
      3376 8402 3376 8404 3378 8408 3379 8409
      3392 8415 3405 8387
TIME...MOT...LOC 0148Z 249DEG 11KT 3386 8403

WIND...40MPH

Special weather statement, Jul 31, 9:56 PM EDT, 47 minutes before

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Special weather statement, Jul 31, 10:15 PM EDT, 28 minutes before

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Special weather statement, Jul 31, 10:43 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 31, 8:26 PM EDT	Special Weather Statement	FFC	Forsyth	34 min
Jul 31, 9:16 PM EDT	Special Weather Statement	FFC	Gwinnett	29 min
Jul 31, 9:49 PM EDT	Special Weather Statement	FFC	Gwinnett	26 min
Jul 31, 9:56 PM EDT	Special Weather Statement	FFC	Hancock	34 min
Jul 31, 10:15 PM EDT	Special Weather Statement	FFC	Gwinnett	30 min
Aug 1, 12:25 PM EDT	Special Weather Statement	FFC	Emanuel	35 min
Aug 1, 12:49 PM EDT	Severe Thunderstorm Warning	FFC	Emanuel	26 min
Aug 1, 12:55 PM EDT	Special Weather Statement	FFC	Fannin	20 min
Aug 1, 1:14 PM EDT	Special Weather Statement	FFC	Emanuel	31 min
Aug 1, 1:16 PM EDT	Special Weather Statement	FFC	Fannin	29 min
Aug 1, 1:21 PM EDT	Special Weather Statement	FFC	Pike	24 min
Aug 1, 1:26 PM EDT	Special Weather Statement	FFC	Emanuel	34 min
Aug 1, 1:46 PM EDT	Special Weather Statement	FFC	Fannin	29 min
Aug 1, 1:55 PM EDT	Special Weather Statement	FFC	Oglethorpe	35 min
Aug 1, 2:04 PM EDT	Special Weather Statement	FFC	Warren	26 min
Aug 1, 2:11 PM EDT	Special Weather Statement	FFC	Pickens	34 min
Aug 1, 2:14 PM EDT	Special Weather Statement	FFC	Fannin	46 min
Aug 1, 2:17 PM EDT	Special Weather Statement	FFC	Johnson	28 min
Aug 1, 2:33 PM EDT	Special Weather Statement	FFC	Fayette	27 min
Aug 1, 2:34 PM EDT	Special Weather Statement	FFC	Montgomery	26 min
Aug 1, 2:47 PM EDT	Special Weather Statement	FFC	Cherokee, Pickens	28 min
Aug 1, 2:54 PM EDT	Special Weather Statement	FFC	Paulding	36 min
Aug 1, 2:59 PM EDT	Severe Thunderstorm Warning	FFC	Coweta, Fayette	20 min
Aug 1, 3:09 PM EDT	Severe Thunderstorm Warning	FFC	Laurens	36 min
Aug 1, 3:18 PM EDT	Special Weather Statement	FFC	Jefferson	27 min
Aug 1, 3:23 PM EDT	Special Weather Statement	FFC	Haralson	37 min
Aug 1, 3:32 PM EDT	Special Weather Statement	FFC	Wilkes	28 min
Aug 1, 3:39 PM EDT	Severe Thunderstorm Warning	FFC	Haralson	29 min
Aug 1, 3:55 PM EDT	Special Weather Statement	FFC	Butts	35 min
Aug 1, 3:56 PM EDT	Special Weather Statement	FFC	Bartow	34 min
Aug 1, 3:57 PM EDT	Special Weather Statement	FFC	Cobb	33 min
Aug 1, 4:07 PM EDT	Severe Thunderstorm Warning	FFC	Cobb	23 min
Aug 1, 4:26 PM EDT	Special Weather Statement	FFC	Carroll	34 min
Aug 1, 4:27 PM EDT	Special Weather Statement	FFC	Fulton	33 min
Aug 1, 4:28 PM EDT	Special Weather Statement	FFC	Fulton	32 min
Aug 1, 4:30 PM EDT	Special Weather Statement	FFC	Floyd	30 min
Aug 1, 4:31 PM EDT	Special Weather Statement	FFC	Jasper	29 min
Aug 1, 4:37 PM EDT	Special Weather Statement	FFC	Upson	38 min
Aug 1, 4:38 PM EDT	Special Weather Statement	FFC	Heard	37 min
Aug 1, 4:41 PM EDT	Special Weather Statement	FFC	Dade	34 min
Aug 1, 4:44 PM EDT	Special Weather Statement	FFC	Bibb	31 min
Aug 1, 4:54 PM EDT	Severe Thunderstorm Warning	FFC	DeKalb, Fulton	36 min
Aug 1, 5:03 PM EDT	Special Weather Statement	FFC	Floyd	27 min
Aug 1, 5:11 PM EDT	Severe Thunderstorm Warning	FFC	Bibb	34 min
Aug 1, 5:21 PM EDT	Severe Thunderstorm Warning	FFC	DeKalb, Fulton, Gwinnett	24 min
Aug 1, 5:34 PM EDT	Special Weather Statement	FFC	Gordon	26 min
Aug 1, 5:37 PM EDT	Special Weather Statement	FFC	Chattooga	23 min
Aug 1, 5:42 PM EDT	Severe Thunderstorm Warning	FFC	Chattooga, Floyd, Gordon, Walker	33 min
Aug 1, 5:45 PM EDT	Special Weather Statement	FFC	Gwinnett	30 min
Aug 1, 5:50 PM EDT	Special Weather Statement	FFC	Morgan, Oconee	40 min
Aug 1, 5:51 PM EDT	Special Weather Statement	FFC	Murray	24 min
Aug 1, 5:54 PM EDT	Special Weather Statement	FFC	Peach	51 min
Aug 1, 6:06 PM EDT	Severe Thunderstorm Warning	FFC	Murray	24 min
Aug 1, 6:23 PM EDT	Special Weather Statement	FFC	Whitfield	37 min
Aug 1, 6:28 PM EDT	Severe Thunderstorm Warning	FFC	Murray, Whitfield	32 min
Aug 1, 6:31 PM EDT	Special Weather Statement	FFC	Morgan, Walton	29 min
Aug 1, 6:51 PM EDT	Special Weather Statement	FFC	Chattahoochee	24 min
Aug 1, 6:55 PM EDT	Severe Thunderstorm Warning	FFC	Chattahoochee, Marion, Talbot	50 min
Aug 1, 7:07 PM EDT	Special Weather Statement	FFC	Banks	23 min
Aug 1, 7:24 PM EDT	Special Weather Statement	FFC	Banks	36 min
Aug 1, 7:48 PM EDT	Special Weather Statement	FFC	Stewart	27 min
Aug 1, 7:50 PM EDT	Special Weather Statement	FFC	Talbot	25 min
Aug 1, 7:52 PM EDT	Special Weather Statement	FFC	Hall, Jackson	23 min

Nearby

Special Weather Statements in Georgia, 2019 Every special weather statement in 2019

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.