Alert archive / Georgia / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 195, NWS Jacksonville, FL

August 14, 2018Appling County, Wayne County, Georgia

NWS Jacksonville, FL issued this severe thunderstorm warning at Aug 14, 2018, 8:03 PM EDT for Appling County, Wayne County, Georgia. It was in force for 28 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: Aug 14, 2018, 8:03 PM EDT (00:03 UTC)
Expired: Aug 14, 2018, 8:31 PM EDT
In force: 28 min
Issued by: NWS Jacksonville, FL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Appling County, GA, Wayne County, GA

The radar

The Moody AFB radar (KVAX), 120 km from the middle of the area, began a volume at 00:06 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

Charleston AFB, SC (KCHS), launched 00:00Z, 0.1 hours before the alert went out and 242 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: 329 J/kg
Mixed-layer CIN: -181 J/kg
Mixed-layer LCL: 1195 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 20 m²/s²
0-3 km storm-relative helicity: 26 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Jacksonville, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 14, 3:17 PM EDT, 4 hours 46 minutes earlier.

Area forecast discussion, Aug 14, 3:17 PM EDT, 4 hours 46 minutes before

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In the hours before

Special weather statement, Aug 14, 4:30 PM EDT, 3 hours 33 minutes before

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Special weather statement, Aug 14, 4:35 PM EDT, 3 hours 28 minutes before

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Special weather statement, Aug 14, 5:35 PM EDT, 2 hours 28 minutes before

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Special weather statement, Aug 14, 6:42 PM EDT, 1 hour 21 minutes before

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Special weather statement, Aug 14, 7:14 PM EDT, 49 minutes before

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Special weather statement, Aug 14, 7:49 PM EDT, 14 minutes before

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The office that day

Everything else NWS Jacksonville, FL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 15, 2:37 PM EDT	Special Weather Statement	JAX	Gilchrist	38 min
Aug 15, 3:11 PM EDT	Areal Flood Advisory	JAX	Alachua, Columbia, Gilchrist	2 hr
Aug 15, 3:16 PM EDT	Special Marine Warning	JAX		59 min
Aug 15, 3:24 PM EDT	Areal Flood Advisory	JAX	Duval	2 hr
Aug 15, 3:32 PM EDT	Special Weather Statement	JAX	Duval	43 min
Aug 15, 3:38 PM EDT	Special Weather Statement	JAX	Union	52 min
Aug 15, 3:48 PM EDT	Severe Thunderstorm Warning	JAX	Duval	14 min
Aug 15, 3:59 PM EDT	Areal Flood Warning	JAX	Duval	2 hr
Aug 15, 4:05 PM EDT	Special Weather Statement	JAX	Baker	40 min
Aug 15, 4:16 PM EDT	Areal Flood Advisory	JAX	Bradford, Union	119 min
Aug 15, 4:35 PM EDT	Areal Flood Advisory	JAX	Baker, Bradford, Union	115 min
Aug 15, 6:09 PM EDT	Areal Flood Advisory	JAX	Clay, Duval, Saint Johns	2 hr
Aug 14, 8:18 PM EDT	Areal Flood Warning	JAX	Jeff Davis	117 min
Aug 14, 8:40 PM EDT	Areal Flood Warning	JAX	Appling, Wayne	2 hr
Aug 14, 9:11 PM EDT	Special Weather Statement	JAX	Jeff Davis	49 min
Aug 15, 3:57 PM EDT	Areal Flood Advisory	JAX	Clinch, Ware	2 hr
Aug 15, 4:59 PM EDT	Special Weather Statement	JAX	Coffee	46 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2018 Every severe thunderstorm warning 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.