Alert archive / Georgia / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 102, NWS Atlanta, GA

June 4, 2010Montgomery County, Toombs County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jun 4, 2010, 7:40 PM EDT for Montgomery County, Toombs County, Georgia. It was in force for 35 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 4, 2010, 7:40 PM EDT (23:40 UTC)
Expired: Jun 4, 2010, 8:15 PM EDT
In force: 35 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon

Counties Montgomery County, GA, Toombs County, GA

The radar

The Robins AFB radar (KJGX), 104 km from the middle of the area, began a volume at 23:40 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

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 11.7 hours before the alert went out and 236 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: 1304 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 514 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 18 m²/s²
0-3 km storm-relative helicity: 28 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Jun 4, 6:48 PM EDT, 52 minutes earlier.

Area forecast discussion, Jun 4, 6:48 PM EDT, 52 minutes before

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Hazardous weather outlook, Jun 4, 5:24 PM EDT, 2 hours 16 minutes before

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In the hours before

Special weather statement, Jun 4, 6:08 PM EDT, 1 hour 32 minutes before

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Special weather statement, Jun 4, 6:19 PM EDT, 1 hour 21 minutes before

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Special weather statement, Jun 4, 6:20 PM EDT, 1 hour 20 minutes before

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Special weather statement, Jun 4, 6:59 PM EDT, 41 minutes before

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Special weather statement, Jun 4, 7:01 PM EDT, 39 minutes before

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Special weather statement, Jun 4, 7:04 PM EDT, 36 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
Jun 4, 6:14 PM EDT	Flash Flood Warning	FFC	Barrow, Gwinnett, Jackson	4 hr

Nearby

Severe Thunderstorm Warnings in Georgia, 2010 Every severe thunderstorm warning in 2010

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.