Alert archive / Georgia / Special Weather Statements in 2018

Special Weather Statement, NWS Atlanta, GA

July 17, 2018Oglethorpe County, Georgia

NWS Atlanta, GA issued this special weather statement at Jul 17, 2018, 8:39 PM EDT for Oglethorpe County, Georgia. It was in force for 36 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: Jul 17, 2018, 8:39 PM EDT (00:39 UTC)
Expired: Jul 17, 2018, 9:15 PM EDT
In force: 36 min
Issued by: NWS Atlanta, GA
Wind: 40

County Oglethorpe County, GA

The radar

The Greer radar (KGSP), 119 km from the middle of the area, began a volume at 00:40 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

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 0.7 hours before the alert went out and 361 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: 205 J/kg
Mixed-layer CIN: -80 J/kg
Mixed-layer LCL: 1602 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 36 m²/s²
0-3 km storm-relative helicity: 36 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

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 Jul 17, 7:15 PM EDT, 1 hour 24 minutes earlier.

Area forecast discussion, Jul 17, 7:15 PM EDT, 1 hour 24 minutes before

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Hazardous weather outlook, Jul 17, 12:51 PM EDT, 7 hours 48 minutes before

Hazardous Weather Outlook
National Weather Service Peachtree City GA
1251 PM EDT Tue Jul 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-
1251 PM EDT Tue Jul 17 2018

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

.DAY ONE...This Afternoon and Tonight...

Scattered thunderstorms are expected across north and central Georgia
this afternoon and evening. A few of these storms could be
strong, producing gusty winds and frequent lightning strikes.
However, the main hazard will be locally heavy rainfall. The heavy
rain could cause temporary street flooding and ponding of water
in low lying areas.

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

Scattered to numerous thunderstorms are expected Wednesday through
Monday, mainly in the afternoon and evening hours each day. A few
strong to severe thunderstorms will be possible each day with strong,
gusty winds, frequent lightning, and very heavy rainfall.

.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

Special weather statement, Jul 17, 7:00 PM EDT, 1 hour 39 minutes before

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Special weather statement, Jul 17, 7:30 PM EDT, 1 hour 9 minutes before

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Local storm report, Jul 17, 7:40 PM EDT, 59 minutes before

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Local storm report, Jul 17, 7:43 PM EDT, 56 minutes before

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Local storm report, Jul 17, 7:45 PM EDT, 54 minutes before

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Special weather statement, Jul 17, 8:39 PM EDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 17, 9:04 PM EDT	Special Weather Statement	FFC	Wheeler	41 min
Jul 17, 10:43 PM EDT	Special Weather Statement	FFC	Wilkes	32 min
Jul 18, 3:13 PM EDT	Special Weather Statement	FFC	Wheeler	32 min
Jul 18, 6:34 PM EDT	Special Weather Statement	FFC	Houston	26 min
Jul 18, 6:48 PM EDT	Special Weather Statement	FFC	Laurens	42 min
Jul 18, 7:09 PM EDT	Special Weather Statement	FFC	Bleckley, Houston, Peach	51 min
Jul 18, 7:22 PM EDT	Severe Thunderstorm Warning	FFC	Dodge, Laurens	23 min
Jul 18, 7:49 PM EDT	Special Weather Statement	FFC	Upson	41 min
Jul 18, 7:50 PM EDT	Special Weather Statement	FFC	Dodge, Laurens	40 min

Nearby

Special Weather Statements in Georgia, 2018 Every 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.