Alert archive / Georgia / Special Weather Statements in 2023

Special Weather Statement, NWS Atlanta, GA

July 15, 2023Jefferson County, Georgia

NWS Atlanta, GA issued this special weather statement at Jul 15, 2023, 9:46 PM EDT for Jefferson County, Georgia. It was in force for 44 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 15, 2023, 9:46 PM EDT (01:46 UTC)
Expired: Jul 15, 2023, 10:30 PM EDT
In force: 44 min
Issued by: NWS Atlanta, GA
Hail: 0.00 in
Wind: 40

County Jefferson County, GA

The radar

The Robins AFB radar (KJGX), 93 km from the middle of the area, began a volume at 01:51 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 00:00Z, 1.8 hours before the alert went out and 204 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: 482 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 1323 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 62 m²/s²
0-3 km storm-relative helicity: 92 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.9

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 15, 9:33 PM EDT, 13 minutes earlier.

Area forecast discussion, Jul 15, 9:33 PM EDT, 13 minutes before

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Hazardous weather outlook, Jul 15, 9:55 AM EDT, 11 hours 51 minutes before

Hazardous Weather Outlook
National Weather Service Peachtree City GA
955 AM EDT Sat Jul 15 2023

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-161400-
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-
955 AM EDT Sat Jul 15 2023

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

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

Scattered thunderstorms are expected across north and central
Georgia this afternoon and evening. Some isolated storms may
become strong to marginally severe, capable of producing gusty
winds, locally heavy rainfall, and frequent lightning.

.DAYS TWO THROUGH SEVEN...Sunday through Friday...

Coverage of thunderstorms is expected to be isolated to scattered
across the area Sunday and Monday. Frequent lightning and locally
heavy rainfall will be possible with stronger storms.

.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. Please relay any information about observed
severe weather to the NWS.

In the hours before

Local storm report, Jul 15, 8:57 PM EDT, 49 minutes before

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Local storm report, Jul 15, 8:58 PM EDT, 48 minutes before

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Special weather statement, Jul 15, 9:09 PM EDT, 37 minutes before

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Special weather statement, Jul 15, 9:21 PM EDT, 25 minutes before

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Special weather statement, Jul 15, 9:37 PM EDT, 9 minutes before

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Special weather statement, Jul 15, 9:46 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 15, 8:12 PM EDT	Special Weather Statement	FFC	Twiggs	33 min
Jul 15, 8:20 PM EDT	Special Weather Statement	FFC	Wilkinson	25 min
Jul 15, 8:27 PM EDT	Special Weather Statement	FFC	Jefferson	33 min
Jul 15, 8:39 PM EDT	Special Weather Statement	FFC	Bleckley, Wilkinson	36 min
Jul 15, 9:09 PM EDT	Special Weather Statement	FFC	Bleckley, Dodge, Laurens	36 min
Jul 15, 9:21 PM EDT	Special Weather Statement	FFC	Jefferson, Washington	24 min
Jul 15, 9:37 PM EDT	Special Weather Statement	FFC	Johnson, Montgomery, Treutlen, Wheeler	38 min
Jul 15, 10:25 PM EDT	Special Weather Statement	FFC	Emanuel	35 min
Jul 16, 6:13 PM EDT	Special Weather Statement	FFC	Crisp	32 min

Nearby

Special Weather Statements in Georgia, 2023 Every special weather statement in 2023

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.