Alert archive / Georgia / Special Weather Statements in 2018

Special Weather Statement, NWS Atlanta, GA

June 17, 2018Macon County, Georgia

NWS Atlanta, GA issued this special weather statement at Jun 17, 2018, 9:23 AM EDT for Macon County, Georgia. It was in force for 37 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, 9:23 AM EDT (13:23 UTC)
Expired
Jun 17, 2018, 10:00 AM EDT
In force
37 min
Issued by
NWS Atlanta, GA
Wind
50

County Macon County, GA

The radar

The Robins AFB radar (KJGX), 85 km from the middle of the area, began a volume at 13:23 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, 1.4 hours before the alert went out and 138 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, 7:20 AM EDT, 2 hours 3 minutes earlier.

Area forecast discussion, Jun 17, 7:20 AM EDT, 2 hours 3 minutes before
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Hazardous weather outlook, Jun 17, 4:52 AM EDT, 4 hours 31 minutes before
Hazardous Weather Outlook
National Weather Service Peachtree City GA
452 AM 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-
452 AM EDT Sun Jun 17 2018

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

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

Scattered thunderstorms can be expected today, with the most
coverage expected during the afternoon and evening. Some storms
could be strong and an isolated severe storm cannot be ruled out.
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 each day, mainly during the
afternoon and evening hours. A few storms could be strong to severe
each day with strong, gusty winds, frequent lightning and isolated
flooding from heavy rain.

.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, 9:23 AM 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, 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, 4:13 PM EDTSpecial Weather StatementFFCUnion32 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.