Alert archive / Georgia / Special Weather Statements in 2020

Special Weather Statement, NWS Atlanta, GA

August 14, 2020Twiggs County, Georgia

NWS Atlanta, GA issued this special weather statement at Aug 14, 2020, 3:09 PM EDT for Twiggs 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: Aug 14, 2020, 3:09 PM EDT (19:09 UTC)
Expired: Aug 14, 2020, 3:45 PM EDT
In force: 36 min
Issued by: NWS Atlanta, GA
Wind: 40

County Twiggs County, GA

The radar

The Robins AFB radar (KJGX), 16 km from the middle of the area, began a volume at 19:11 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

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 7.2 hours before the alert went out and 267 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: 667 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 782 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: -23 m²/s²
0-3 km storm-relative helicity: -20 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 Aug 14, 2:22 PM EDT, 47 minutes earlier.

Area forecast discussion, Aug 14, 2:22 PM EDT, 47 minutes before

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Hazardous weather outlook, Aug 14, 12:08 PM EDT, 3 hours 1 minute before

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In the hours before

Special weather statement, Aug 14, 3:09 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
Aug 13, 8:23 PM EDT	Special Weather Statement	FFC	Gwinnett	22 min
Aug 13, 8:30 PM EDT	Special Weather Statement	FFC	Forsyth	30 min
Aug 13, 8:47 PM EDT	Special Weather Statement	FFC	Barrow	28 min
Aug 13, 8:51 PM EDT	Special Weather Statement	FFC	Oconee	24 min
Aug 13, 8:59 PM EDT	Flash Flood Warning	FFC	Oconee, Walton	2 hr
Aug 13, 9:10 PM EDT	Special Weather Statement	FFC	Wilkinson	35 min
Aug 13, 9:16 PM EDT	Special Weather Statement	FFC	Fulton	29 min
Aug 13, 9:31 PM EDT	Special Weather Statement	FFC	Washington	29 min
Aug 13, 9:41 PM EDT	Special Weather Statement	FFC	Morgan	34 min
Aug 13, 11:04 PM EDT	Special Weather Statement	FFC	Jefferson	26 min
Aug 13, 11:05 PM EDT	Special Weather Statement	FFC	Pike	25 min
Aug 13, 11:22 PM EDT	River Flood Warning	FFC	DeKalb	2 hr

Nearby

Special Weather Statements in Georgia, 2020 Every special weather statement in 2020

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.