Alert archive / Georgia / Special Weather Statements in 2017

Special Weather Statement, NWS Atlanta, GA

April 17, 2017Fulton County, Georgia

NWS Atlanta, GA issued this special weather statement at Apr 17, 2017, 2:01 PM EDT for Fulton County, Georgia. It was in force for 44 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: Apr 17, 2017, 2:01 PM EDT (18:01 UTC)
Expired: Apr 17, 2017, 2:45 PM EDT
In force: 44 min
Issued by: NWS Atlanta, GA
Hail: 0.25 in
Wind: 40

County Fulton County, GA

The radar

The Atlanta radar (KFFC), 53 km from the middle of the area, began a volume at 18:05 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, 6.0 hours before the alert went out and 52 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: 128 J/kg
Mixed-layer CIN: -66 J/kg
Mixed-layer LCL: 1016 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: -8 m²/s²
0-3 km storm-relative helicity: -3 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 Apr 17, 1:49 PM EDT, 12 minutes earlier.

Area forecast discussion, Apr 17, 1:49 PM EDT, 12 minutes before

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Hazardous weather outlook, Apr 17, 4:45 AM EDT, 9 hours 16 minutes before

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In the hours before

Special weather statement, Apr 17, 1:09 PM EDT, 52 minutes before

Special Weather Statement
National Weather Service Peachtree City GA
109 PM EDT MON APR 17 2017

GAZ044-053-054-171745-
Fayette GA-Coweta GA-South Fulton GA-
109 PM EDT MON APR 17 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN FAYETTE...NORTHERN
COWETA AND SOUTHERN SOUTH FULTON COUNTIES UNTIL 145 PM EDT...

At 107 PM EDT...a strong thunderstorm was over Palmetto, moving east
at 15 mph.

  HAZARD...Up to 40 mph wind, pea sized hail and frequent cloud-to-
           ground lightning.

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

Some locations in the path of this storm include
Union City, Fairburn, Tyrone, Palmetto, Cannongate, Sandy Creek and
Madras.

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 3343 8477 3352 8479 3364 8458 3355 8446
      3344 8449
TIME...MOT...LOC 1707Z 255DEG 14KT 3349 8470

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

Special weather statement, Apr 17, 1:44 PM EDT, 17 minutes before

Special Weather Statement
National Weather Service Peachtree City GA
144 PM EDT MON APR 17 2017

GAZ045-046-055-057-171830-
Rockdale GA-Clayton GA-DeKalb GA-Henry GA-
144 PM EDT MON APR 17 2017

...SIGNIFICANT WEATHER ADVISORY FOR WESTERN ROCKDALE...NORTHEASTERN
CLAYTON...SOUTHERN DEKALB AND NORTHERN HENRY COUNTIES UNTIL 230 PM
EDT...

At 143 PM EDT...a strong thunderstorm was over Conley, moving
northeast at 15 mph.

  HAZARD...Up to 40 mph wind, pea sized hail and frequent cloud-to-
           ground lightning.

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

Some locations in the path of this storm include
Decatur, Forest Park, Clarkston, Morrow, Avondale Estates, Lake City,
Lithonia, Pine Lake, Belvedere Park, Candler-Mcafee, Rex, Belmont,
Ellenwood, Arabia Mountain, Redan, Hidden Valley Park, Fort Gillem,
Panola Mountain State Park, Panthersville and Conley.

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 3371 8435 3381 8423 3374 8408 3360 8409
      3356 8435
TIME...MOT...LOC 1743Z 246DEG 13KT 3366 8430

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

Special weather statement, Apr 17, 2:01 PM EDT, 0 minutes before

Special Weather Statement
National Weather Service Peachtree City GA
201 PM EDT MON APR 17 2017

GAZ032-033-171845-
North Fulton GA-Cobb GA-
201 PM EDT MON APR 17 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTH FULTON AND SOUTHEASTERN
COBB COUNTIES UNTIL 245 PM EDT...

At 159 PM EDT...a strong thunderstorm was over Mableton, moving east
at 15 mph.

  HAZARD...Up to 40 mph wind, pea sized hail and frequent cloud-to-
           ground lightning.

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

Some locations in the path of this storm include
Atlanta, Marietta, Sandy Springs, Smyrna, Vinings, Bolton, Piedmont
Park, Atlantic Station, Mableton, Bankhead and Chastain Memorial
Park.

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 3385 8460 3393 8443 3386 8435 3382 8435
      3375 8440 3378 8460
TIME...MOT...LOC 1759Z 267DEG 13KT 3382 8454

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

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 17, 1:09 PM EDT	Special Weather Statement	FFC	Fayette	36 min
Apr 17, 1:44 PM EDT	Special Weather Statement	FFC	DeKalb	46 min
Apr 17, 3:39 PM EDT	Special Weather Statement	FFC	Haralson	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.