Alert archive / Georgia / Special Weather Statements in 2015

Special Weather Statement, NWS Atlanta, GA

July 12, 2015Cherokee County, Georgia

NWS Atlanta, GA issued this special weather statement at Jul 12, 2015, 3:00 PM EDT for Cherokee County, Georgia. It was in force for 30 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 12, 2015, 3:00 PM EDT (19:00 UTC)
Expired: Jul 12, 2015, 3:30 PM EDT
In force: 30 min
Issued by: NWS Atlanta, GA

County Cherokee County, GA

The radar

The Atlanta radar (KFFC), 99 km from the middle of the area, began a volume at 18:59 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

Birmingham, AL (KBMX), launched 12:00Z, 7.0 hours before the alert went out and 243 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: 2410 J/kg
Mixed-layer CIN: -29 J/kg
Mixed-layer LCL: 972 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: 16 m²/s²
0-3 km storm-relative helicity: 24 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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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 12, 2:55 PM EDT, 5 minutes earlier.

Area forecast discussion, Jul 12, 2:55 PM EDT, 5 minutes before

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Hazardous weather outlook, Jul 12, 4:40 AM EDT, 10 hours 20 minutes before

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In the hours before

Special weather statement, Jul 12, 2:18 PM EDT, 42 minutes before

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Special weather statement, Jul 12, 2:29 PM EDT, 31 minutes before

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Special weather statement, Jul 12, 2:35 PM EDT, 25 minutes before

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Special weather statement, Jul 12, 2:56 PM EDT, 4 minutes before

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Special weather statement, Jul 12, 3:00 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 12, 2:18 PM EDT	Special Weather Statement	FFC	Gilmer, Murray	42 min
Jul 12, 2:29 PM EDT	Special Weather Statement	FFC	Bartow, Cherokee, Pickens	31 min
Jul 12, 2:35 PM EDT	Special Weather Statement	FFC	Catoosa, Whitfield	25 min
Jul 12, 2:56 PM EDT	Special Weather Statement	FFC	Murray, Whitfield	34 min
Jul 12, 3:27 PM EDT	Special Weather Statement	FFC	Murray, Whitfield	33 min
Jul 12, 4:56 PM EDT	Special Weather Statement	FFC	Clayton, Fayette	34 min
Jul 12, 5:48 PM EDT	Special Weather Statement	FFC	Coweta	27 min

Nearby

Special Weather Statements in Georgia, 2015 Every special weather statement in 2015

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.