Alert archive / Georgia / Special Weather Statements in 2018

Special Weather Statement, NWS Atlanta, GA

June 17, 2018Union County, Georgia

NWS Atlanta, GA issued this special weather statement at Jun 17, 2018, 4:13 PM EDT for Union 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
Jun 17, 2018, 4:13 PM EDT (20:13 UTC)
Expired
Jun 17, 2018, 4:45 PM EDT
In force
32 min
Issued by
NWS Atlanta, GA
Hail
0.25 in
Wind
40

County Union County, GA

The radar

The Atlanta radar (KFFC), 154 km from the middle of the area, began a volume at 20:16 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, 8.2 hours before the alert went out and 151 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-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 12:00Z on 2018-06-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 945 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 12:00Z on 2018-06-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -15 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
945 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
469 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
-15 m²/s²
0-3 km storm-relative helicity
-93 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 Jun 17, 2:51 PM EDT, 1 hour 22 minutes earlier.

Area forecast discussion, Jun 17, 2:51 PM EDT, 1 hour 22 minutes before
Area Forecast Discussion
National Weather Service Peachtree City GA
251 PM EDT Sun Jun 17 2018

.SHORT TERM /Tonight through Monday Night/...

Continued more of the same with afternoon showers and thunderstorms
cross the area today and monday. Will also see more low clouds and
fog in the morning with a very weak summertime pattern in place
across the region. The main features across the area continue to be
the large upper level ridge and the weak upper level disturbance
that have been rotating over GA/AL/Northern FL and continue to help
enhance diurnally driven convection everyday. The ridge has been
helping to suppress the activity but it is also keeping this weak
pattern in place with no signs of this changing anytime soon. still
expecting strong storms to develop in the short term with isolated
severe storms as well. The greatest threats will be gusty winds,
frequent lightning, period of heavy rain and small hail.

For those with outdoor activities planned today, stay weather aware.
If you can hear thunder, you are close enough to be struck by
lightning. You should seek shelter if you see lightning or hear
thunder. In addition, Heat Indices will range from the middle to
upper 90s across much of the state today and Monday. If you plan on
being outdoors for long periods of time, take frequent breaks to
cool off and stay hydrated.

01

.LONG TERM /Tuesday through Sunday/...

Long term period begins with the continued pattern of mid and
upper level ridge firmly entrenched over the area but plenty of
moisture trapped at the low levels under this feature. This
pattern will continue into Wed and the first part of Thu
characterized by low to mid range chance pops and mainly a heavy
rain potential as mid levels warm to -5C at 500mb.

Ridge does flatten out a bit into late week as shortwave energy
flows in from the central plains and travels across northern
portions of the Tennessee Valley. This will allow for a temporary
increase in pops across the northern CWA by Friday afternoon. Main
moisture axis and energy looks to remain north of the area
thereafter and a return to low to mid range sct pops looks in the
offing.

Did reload latest long term guidance but left pops largely alone
as they represent above thinking well.

Deese

&&

.AVIATION...
18Z Update...
More diurnal convection today and Monday. Ceilings are in the
MVFR to VFR range across the area and will eventually become all
VFR later today. Will see more MVFR and some IFR ceilings move
back in overnight through Mon morning. Ceilings will lift through
Monday afternoon similar to this morning. Winds are expected to be
mainly out of the SW at 8kt or less. Will see some gust to near
20kt in and around any TSRA development this afternoon and Monday
afternoon. VSBYs will stay VFR except some brief periods of IFR
VSBYs in and around thunderstorms activity.

//ATL Confidence...18Z Update...
Confidence medium to high on all elements

01

&&

.PRELIMINARY POINT TEMPS/POPS...
Athens          70  91  71  93 /  30  30  20  20
Atlanta         72  88  73  90 /  40  30  20  30
Blairsville     65  86  66  87 /  30  40  20  40
Cartersville    70  89  70  91 /  40  30  20  30
Columbus        72  89  73  91 /  40  30  20  30
Gainesville     70  89  71  90 /  30  30  20  30
Macon           71  90  72  92 /  40  30  20  30
Rome            71  90  71  91 /  30  30  20  30
Peachtree City  70  88  71  90 /  40  30  20  30
Vidalia         72  90  73  92 /  40  30  20  30

&&

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

SHORT TERM...01
LONG TERM....Deese
AVIATION...01
Hazardous weather outlook, Jun 17, 4:09 PM EDT, 4 minutes before
Hazardous Weather Outlook
National Weather Service Peachtree City GA
409 PM EDT Sun Jun 17 2018

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-181200-
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-
409 PM EDT Sun Jun 17 2018

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

.DAY ONE...Tonight...

Scattered thunderstorms will continue into tonight. Some storms
may be strong with occasional isolated severe storms possible.
The main threats will be isolated flooding from locally heavy
rainfall, damaging winds, and frequent lightning.

.DAYS TWO THROUGH SEVEN...Monday through Saturday...

There is a chance of thunderstorms everyday for the next week,
mainly during the afternoon and evening hours. A few storms could
be strong to severe each day with strong wind gusts, frequent
lightning and isolated flooding from heavy rain possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed through tonight, but spotters
are encouraged to submit reports of any severe weather and flooding
through the web by going to weather.gov/atlanta

In the hours before

Special weather statement, Jun 17, 2:52 PM EDT, 1 hour 21 minutes before
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Special weather statement, Jun 17, 3:05 PM EDT, 1 hour 8 minutes before
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Special weather statement, Jun 17, 3:23 PM EDT, 50 minutes before
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Special weather statement, Jun 17, 3:47 PM EDT, 26 minutes before
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Special weather statement, Jun 17, 3:57 PM EDT, 16 minutes before
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Special weather statement, Jun 17, 4:13 PM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 16, 8:24 PM EDTSpecial Weather StatementFFCDeKalb36 min
Jun 16, 8:27 PM EDTSpecial Weather StatementFFCBaldwin, Hancock, Washington33 min
Jun 16, 8:30 PM EDTSpecial Weather StatementFFCNewton30 min
Jun 16, 8:57 PM EDTSpecial Weather StatementFFCJasper, Putnam33 min
Jun 16, 8:59 PM EDTSpecial Weather StatementFFCDeKalb31 min
Jun 16, 9:01 PM EDTSpecial Weather StatementFFCJohnson29 min
Jun 16, 9:28 PM EDTSpecial Weather StatementFFCJasper, Putnam32 min
Jun 16, 9:38 PM EDTSevere Thunderstorm WarningFFCJasper, Putnam30 min
Jun 17, 12:59 AM EDTSpecial Weather StatementFFCBartow31 min
Jun 17, 9:23 AM EDTSpecial Weather StatementFFCMacon37 min
Jun 17, 1:45 PM EDTSpecial Weather StatementFFCEmanuel45 min
Jun 17, 2:09 PM EDTSpecial Weather StatementFFCMurray36 min
Jun 17, 2:18 PM EDTSpecial Weather StatementFFCPickens27 min
Jun 17, 2:39 PM EDTSpecial Weather StatementFFCGilmer36 min
Jun 17, 2:45 PM EDTSevere Thunderstorm WarningFFCGilmer, Pickens18 min
Jun 17, 2:52 PM EDTSpecial Weather StatementFFCUnion23 min
Jun 17, 3:05 PM EDTSpecial Weather StatementFFCPickens25 min
Jun 17, 3:23 PM EDTSpecial Weather StatementFFCGordon37 min
Jun 17, 3:47 PM EDTSpecial Weather StatementFFCUnion28 min
Jun 17, 3:57 PM EDTSpecial Weather StatementFFCBartow33 min
Jun 17, 4:25 PM EDTSpecial Weather StatementFFCDouglas35 min
Jun 17, 4:28 PM EDTSpecial Weather StatementFFCBartow, Chattooga, Floyd, Gordon, Walker32 min
Jun 17, 4:44 PM EDTSpecial Weather StatementFFCLumpkin31 min
Jun 17, 4:57 PM EDTSpecial Weather StatementFFCWalker33 min
Jun 17, 5:00 PM EDTSpecial Weather StatementFFCFloyd30 min
Jun 17, 5:03 PM EDTSpecial Weather StatementFFCDouglas27 min
Jun 17, 5:11 PM EDTSevere Thunderstorm WarningFFCChattooga, Dade, Walker32 min
Jun 17, 5:26 PM EDTSpecial Weather StatementFFCCobb, Douglas, Paulding34 min
Jun 17, 5:42 PM EDTSpecial Weather StatementFFCFloyd33 min
Jun 17, 5:46 PM EDTSpecial Weather StatementFFCCatoosa29 min
Jun 17, 5:58 PM EDTSpecial Weather StatementFFCCarroll, Paulding32 min
Jun 17, 6:28 PM EDTSpecial Weather StatementFFCCarroll, Haralson32 min
Jun 17, 6:56 PM EDTSpecial Weather StatementFFCHaralson34 min

Nearby

Special Weather Statements in Georgia, 2018Every special weather statement in 2018

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.