Alert archive / Georgia / Special Weather Statements in 2017

Special Weather Statement, NWS Atlanta, GA

May 30, 2017Bartow County, Cherokee County, Floyd County, Georgia

NWS Atlanta, GA issued this special weather statement at May 30, 2017, 11:58 AM EDT for Bartow County, Cherokee County, Floyd County, Georgia. It was in force for 47 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: May 30, 2017, 11:58 AM EDT (15:58 UTC)
Expired: May 30, 2017, 12:45 PM EDT
In force: 47 min
Issued by: NWS Atlanta, GA

Counties Bartow County, GA, Cherokee County, GA, Floyd County, GA

The radar

The Atlanta radar (KFFC), 91 km from the middle of the area, began a volume at 16:00 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, 4.0 hours before the alert went out and 92 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: 218 J/kg
Mixed-layer CIN: -50 J/kg
Mixed-layer LCL: 1026 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: -4 m²/s²
0-3 km storm-relative helicity: 22 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -0.2

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 May 30, 7:43 AM EDT, 4 hours 15 minutes earlier.

Area forecast discussion, May 30, 7:43 AM EDT, 4 hours 15 minutes before

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Hazardous weather outlook, May 30, 4:22 AM EDT, 7 hours 36 minutes before

Hazardous Weather Outlook
National Weather Service Peachtree City GA
422 AM EDT Tue May 30 2017

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-310830-
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-
422 AM EDT Tue May 30 2017

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

.DAY ONE...Today and Tonight...

Isolated thunderstorms may become severe this afternoon and
evening for much of north and central Georgia.

A stalled frontal boundary and afternoon heating will help support
isolated strong to severe thunderstorms. The primary threats will
be damaging wind gusts and heavy rainfall with large hail
possible.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday...

A moist and unstable air mass will remain over north and central
Georgia through the period. There will be a chance of showers and
thunderstorms each day...a few storms possibly severe.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not requested but spotters are encouraged
to submit reports of severe weather through the web by going to
weather.gov/atlanta.

In the hours before

Local storm report, May 30, 11:37 AM EDT, 21 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1137 AM EDT TUE MAY 30 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0410 PM     TSTM WND DMG     2 SW CHURCH HILL        32.14N  84.57W
05/29/2017                   WEBSTER            GA   EMERGENCY MNGR

            TREE REPORTED DOWN ON CHURCHILL RD IN THE 2000 BLOCK.

&&

EVENT NUMBER FFC1700749

KING

Special weather statement, May 30, 11:58 AM EDT, 0 minutes before

Special Weather Statement
National Weather Service Peachtree City GA
1158 AM EDT TUE MAY 30 2017

GAZ019>021-030>032-301645-
Polk GA-Cobb GA-Cherokee GA-Bartow GA-Paulding GA-Floyd GA-
1158 AM EDT TUE MAY 30 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN POLK...NORTHERN COBB...
CHEROKEE...BARTOW...NORTHEASTERN PAULDING AND FLOYD COUNTIES UNTIL
1245 PM EDT...

At 1157 AM EDT...a line of strong thunderstorms was along a line
extending from near Coloma to Kennesaw...and moving northeast at 25
mph.

  HAZARD...Heavy rain.

  IMPACT...Heavy rain may cause temporary street flooding especially
           in poor drainage areas.

Some locations in the path of these storms include
Marietta, Rome, Canton, Cartersville, Cedartown, Roswell, Kennesaw,
Woodstock, Acworth, Holly Springs, Rockmart, Euharlee, Emerson,
Aragon, Cave Spring, White, Kingston, Braswell, Taylorsville and Free
Home.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should slow down and be prepared for possible loss of
control due to hydroplaning.

LAT...LON 3432 8530 3428 8426 3419 8426 3417 8435
      3413 8436 3411 8442 3405 8441 3397 8449
      3402 8541 3420 8545 3421 8545
TIME...MOT...LOC 1557Z 246DEG 23KT 3406 8555 3402 8462

The office that day

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

Issued	Product	Office	Counties	Lasted
May 29, 8:36 PM EDT	Special Weather Statement	FFC	Gilmer	39 min
May 29, 8:45 PM EDT	Special Weather Statement	FFC	Peach, Taylor	60 min
May 29, 9:20 PM EDT	Special Weather Statement	FFC	Paulding, Polk	55 min
May 29, 10:15 PM EDT	Special Weather Statement	FFC	Cherokee, Cobb, Fulton, Paulding	60 min
May 30, 12:52 PM EDT	Special Weather Statement	FFC	Chattooga	23 min
May 30, 1:17 PM EDT	Special Weather Statement	FFC	Chattooga	28 min
May 30, 3:32 PM EDT	Special Weather Statement	FFC	Carroll, Douglas	28 min
May 30, 3:54 PM EDT	Special Weather Statement	FFC	Carroll	36 min
May 30, 4:30 PM EDT	Special Weather Statement	FFC	Henry, Spalding	30 min
May 30, 4:45 PM EDT	Severe Thunderstorm Warning	FFC	Butts, Henry, Spalding	30 min
May 30, 5:09 PM EDT	Special Weather Statement	FFC	Crawford	36 min
May 30, 5:15 PM EDT	Severe Thunderstorm Warning	FFC	Butts, Jasper, Monroe	30 min
May 30, 5:32 PM EDT	Special Weather Statement	FFC	Jones	28 min
May 30, 5:48 PM EDT	Severe Thunderstorm Warning	FFC	Baldwin, Jasper, Jones, Putnam	27 min
May 30, 6:15 PM EDT	Special Weather Statement	FFC	Baldwin	30 min
May 30, 6:45 PM EDT	Special Weather Statement	FFC	Washington	30 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.