Alert archive / Georgia / Special Weather Statements in 2017

Special Weather Statement, NWS Atlanta, GA

May 30, 2017Carroll County, Douglas County, Georgia

NWS Atlanta, GA issued this special weather statement at May 30, 2017, 3:32 PM EDT for Carroll County, Douglas County, Georgia. It was in force for 28 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, 3:32 PM EDT (19:32 UTC)
Expired: May 30, 2017, 4:00 PM EDT
In force: 28 min
Issued by: NWS Atlanta, GA
Hail: 0.25 in
Wind: 40

Counties Carroll County, GA, Douglas County, GA

The radar

The Atlanta radar (KFFC), 43 km from the middle of the area, began a volume at 19:31 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, 7.5 hours before the alert went out and 48 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, 3:00 PM EDT, 32 minutes earlier.

Area forecast discussion, May 30, 3:00 PM EDT, 32 minutes before

Area Forecast Discussion
National Weather Service Peachtree City GA
300 PM EDT Tue May 30 2017

.SHORT TERM /Tonight through Wednesday Night/...
Moderately moist and unstable airmass in place with regime
characterized by lingering stationary front near the I-20 corridor
and broad upper trough axis to the west as main influencing
features. Some enhanced low level convergence near the boundary has
focused some rounds of showers and storms since this morning, and
based on some upstream regeneration in Alabama, we could see this
persist into the evening along with other development triggered by
other outflows. With decent mid-level lapse rates possibly aiding
updrafts and well saturated columns/hydrometeor loading enhancing
downdrafts, still thinking a few storms could reach strong to severe
criteria for winds or hail and training of cells could pose isolated
flash flooding threat. Pop trends overnight should have coverage
reduce gradually with lack of heating then have lingering isolated
shower/storm potential. Some patchy fog is possible in the morning
where evening rainfall ends up occurring, so will need to watch if
potential increases to warrant mention in grids but have left out
for now.

No clear indicator for where convection will be focused Wednesday
based on hi-res solutions, though one could argue the low/mid level
moisture gradient and possibly more diffuse boundary could be
shifted farther southward into central Georgia. Did not feel
confident other than going general chance pops area-wide given very
similar overall setup to today with any impulse east of the upper
trough axis (though broad) perhaps enhancing precip potential. Could
be same story also to storm threats with a few strong to severe.

Resultant temps should stay close to climo norms with most locations
low to mid 80s for highs and 60s for lows.

Baker

.LONG TERM /Thursday through Tuesday/...
Models in good general agreement through the long term. High
pressure will build into the CWA Thursday however as the upper
flow becomes zonal, moisture will begin returning to the CWA late
Thursday and continue to spread and increase over the CWA through
the weekend an into early next week with the best chances over
north Georgia, mainly in the afternoons and evenings.

17

&&

.AVIATION...
18Z Update...
Most sites VFR this afternoon though potential for MVFR or lower
cigs/VSBYs from SHRA/TSRA mainly impacting the northern sites so
far. Could see some late afternoon development for southern sites
but not confident. Should see some scattering/improvement after
23-01z with chance of some early morning MVFR cigs where precip
occurs by this evening. Otherwise not clear signal as to where
SHRA/TSRA occurs tomorrow so have handled with VCSH after 17z and
prob30 after 18z for TSRA. Winds generally some component of west
mainly under 10 kts though some VRB gusts possible with any storm.

//ATL Confidence...18Z Update...
Low on overall precipitation trend.
Medium on early morning cigs.
High on all else.

Baker

&&

.PRELIMINARY POINT TEMPS/POPS...
Athens          65  84  64  87 /  20  30  20  10
Atlanta         66  82  66  85 /  20  30  20  20
Blairsville     58  77  56  81 /  20  30  20  10
Cartersville    63  82  62  86 /  20  30  20  20
Columbus        68  85  68  88 /  30  30  20  40
Gainesville     64  81  64  84 /  20  30  20  10
Macon           67  86  66  88 /  30  30  20  30
Rome            63  83  62  86 /  20  30  20  20
Peachtree City  65  83  64  86 /  30  30  20  20
Vidalia         70  87  69  89 /  30  40  30  30

&&

.FFC WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

SHORT TERM...Baker
LONG TERM....17
AVIATION...Baker

Hazardous weather outlook, May 30, 4:22 AM EDT, 11 hours 10 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, 3 hours 55 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, 3 hours 34 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

Special weather statement, May 30, 12:52 PM EDT, 2 hours 40 minutes before

Special Weather Statement
National Weather Service Peachtree City GA
1252 PM EDT TUE MAY 30 2017

GAZ011-019-301715-
Chattooga GA-Floyd GA-
1252 PM EDT TUE MAY 30 2017

...SIGNIFICANT WEATHER ADVISORY FOR CHATTOOGA AND FLOYD COUNTIES
UNTIL 115 PM EDT...

At 1251 PM EDT...a strong thunderstorm was over Gaylesville, or near
Cedar Bluff...moving northeast at 30 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
Summerville, Trion, Lyerly, Menlo, Berryton, Chattoogaville, Tidings,
Armuchee, James H. Floyd State Park and Holland.

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 3459 8534 3440 8511 3422 8545 3446 8550
TIME...MOT...LOC 1651Z 237DEG 15KT 3428 8556

WIND...40MPH

Special weather statement, May 30, 1:17 PM EDT, 2 hours 15 minutes before

Special Weather Statement
National Weather Service Peachtree City GA
117 PM EDT TUE MAY 30 2017

GAZ011-019-301745-
Chattooga GA-Floyd GA-
117 PM EDT TUE MAY 30 2017

...SIGNIFICANT WEATHER ADVISORY FOR CHATTOOGA AND FLOYD COUNTIES
UNTIL 145 PM EDT...

At 117 PM EDT...a strong thunderstorm was over Chattoogaville, or 10
miles east of Little River Canyon National Preserve...moving
northeast at 30 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
Summerville, Lyerly, Berryton, Chattoogaville, Tidings, Armuchee,
James H. Floyd State Park and Holland.

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 3456 8523 3440 8511 3422 8545 3442 8549
TIME...MOT...LOC 1717Z 237DEG 15KT 3434 8545

WIND...40MPH

Special weather statement, May 30, 3:32 PM EDT, 0 minutes before

Special Weather Statement
National Weather Service Peachtree City GA
332 PM EDT TUE MAY 30 2017

GAZ042-043-302000-
Douglas GA-Carroll GA-
332 PM EDT TUE MAY 30 2017

...SIGNIFICANT WEATHER ADVISORY FOR WESTERN DOUGLAS AND CARROLL
COUNTIES UNTIL 400 PM EDT...

At 332 PM EDT...a strong thunderstorm was over Tyus, or 11 miles
southwest of Carrollton...moving northeast at 30 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 this storm include
Douglasville, Carrollton, Villa Rica, Temple, Bowdon, Mount Zion,
Whitesburg, Roopville, Byers Crossroads, Bowdon Junction, Hannah,
Tyus, Bill Arp, Seaton Lake, Fairplay, Clem, Abilene, Winston, Lake
Val-Do-Mar and John Tanner State 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 3369 8513 3372 8505 3375 8505 3380 8498
      3374 8475 3363 8473 3363 8475 3359 8481
      3355 8483 3352 8482 3352 8485 3349 8486
      3348 8490 3345 8492 3344 8495 3346 8498
      3344 8498 3343 8502 3343 8529 3355 8532
TIME...MOT...LOC 1932Z 237DEG 15KT 3344 8517

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
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, 11:58 AM EDT	Special Weather Statement	FFC	Bartow, Cherokee, Floyd	47 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, 3:54 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.