Alert archive / Georgia / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 394, NWS Jacksonville, FL

October 9, 2008Brantley County, Camden County, Glynn County, Georgia

NWS Jacksonville, FL issued this severe thunderstorm warning at Oct 9, 2008, 6:59 PM EDT for Brantley County, Camden County, Glynn County, Georgia. It was in force for 46 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: Oct 9, 2008, 6:59 PM EDT (22:59 UTC)
Expired: Oct 9, 2008, 7:45 PM EDT
In force: 46 min
Issued by: NWS Jacksonville, FL
Area: Storm-based polygon

Counties Brantley County, GA, Camden County, GA, Glynn County, GA

The radar

The Jacksonville radar (KJAX), 70 km from the middle of the area, began a volume at 23:01 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

Jacksonville, FL (KJAX), launched 12:00Z, 11.0 hours before the alert went out and 68 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: 223 J/kg
Mixed-layer CIN: -114 J/kg
Mixed-layer LCL: 933 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 91 m²/s²
0-3 km storm-relative helicity: 144 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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 Oct 9, 6:55 PM EDT, 4 minutes earlier.

Area forecast discussion, Oct 9, 6:55 PM EDT, 4 minutes before

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Hazardous weather outlook, Oct 9, 6:10 PM EDT, 49 minutes before

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In the hours before

Special weather statement, Oct 9, 5:05 PM EDT, 1 hour 54 minutes before

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Local storm report, Oct 9, 5:37 PM EDT, 1 hour 22 minutes before

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Local storm report, Oct 9, 5:42 PM EDT, 1 hour 17 minutes before

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Local storm report, Oct 9, 5:51 PM EDT, 1 hour 8 minutes before

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Special weather statement, Oct 9, 5:53 PM EDT, 1 hour 6 minutes before

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Special weather statement, Oct 9, 6:29 PM EDT, 30 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
Oct 8, 8:57 PM EDT	Special Marine Warning	JAX		48 min
Oct 8, 9:45 PM EDT	Special Marine Warning	JAX		60 min
Oct 8, 9:56 PM EDT	Areal Flood Advisory	JAX	Hamilton, Suwannee	2 hr
Oct 8, 10:50 PM EDT	Severe Thunderstorm Warning	JAX	Suwannee	25 min
Oct 8, 11:15 PM EDT	Severe Thunderstorm Warning	JAX	Columbia	45 min
Oct 8, 11:38 PM EDT	Special Marine Warning	JAX		2 hr
Oct 9, 12:42 AM EDT	Special Marine Warning	JAX		93 min
Oct 9, 9:30 AM EDT	Severe Thunderstorm Warning	JAX	Hamilton	45 min
Oct 9, 10:09 AM EDT	Severe Thunderstorm Warning	JAX	Columbia, Hamilton	66 min
Oct 9, 11:08 AM EDT	Severe Thunderstorm Warning	JAX	Baker, Columbia, Hamilton	67 min
Oct 9, 11:59 AM EDT	Severe Thunderstorm Warning	JAX	Alachua, Columbia, Gilchrist, Suwannee	61 min
Oct 9, 12:18 PM EDT	Severe Thunderstorm Warning	JAX	Columbia, Hamilton, Suwannee	57 min
Oct 9, 12:53 PM EDT	Severe Thunderstorm Warning	JAX	Alachua, Bradford, Columbia, Gilchrist, Suwannee, Union	46 min
Oct 9, 1:37 PM EDT	Severe Thunderstorm Warning	JAX	Alachua, Bradford, Columbia, Gilchrist, Union	53 min
Oct 9, 1:59 PM EDT	Tornado Warning	JAX	Alachua, Bradford, Union	46 min
Oct 9, 2:18 PM EDT	Special Marine Warning	JAX		57 min
Oct 9, 2:31 PM EDT	Severe Thunderstorm Warning	JAX	Alachua, Bradford, Clay, Marion, Putnam	59 min
Oct 9, 2:36 PM EDT	Areal Flood Advisory	JAX	Alachua, Gilchrist	84 min
Oct 9, 2:48 PM EDT	Tornado Warning	JAX	Alachua, Putnam	42 min
Oct 9, 2:53 PM EDT	Areal Flood Advisory	JAX	Bradford, Clay, Putnam	82 min
Oct 9, 3:17 PM EDT	Special Marine Warning	JAX		88 min
Oct 9, 3:24 PM EDT	Severe Thunderstorm Warning	JAX	Clay, Marion, Putnam, Saint Johns	66 min
Oct 9, 3:35 PM EDT	Special Marine Warning	JAX		115 min
Oct 9, 3:41 PM EDT	Areal Flood Advisory	JAX	Marion	64 min
Oct 9, 4:03 PM EDT	Severe Thunderstorm Warning	JAX	Flagler, Putnam	57 min
Oct 9, 4:22 PM EDT	Severe Thunderstorm Warning	JAX	Saint Johns	38 min
Oct 9, 4:34 PM EDT	Areal Flood Advisory	JAX	Flagler, Marion, Putnam, Saint Johns	116 min
Oct 9, 5:00 PM EDT	Severe Thunderstorm Warning	JAX	Flagler	30 min
Oct 9, 5:27 PM EDT	Special Marine Warning	JAX		118 min
Oct 9, 8:51 AM EDT	Severe Thunderstorm Warning	JAX	Atkinson, Clinch	39 min
Oct 9, 9:15 AM EDT	Severe Thunderstorm Warning	JAX	Appling	42 min
Oct 9, 9:49 AM EDT	Severe Thunderstorm Warning	JAX	Appling, Wayne	41 min
Oct 9, 10:41 AM EDT	Severe Thunderstorm Warning	JAX	Atkinson, Bacon, Coffee, Ware	34 min
Oct 9, 10:59 AM EDT	Severe Thunderstorm Warning	JAX	Atkinson	21 min
Oct 9, 11:19 AM EDT	Tornado Warning	JAX	Clinch, Echols, Ware	26 min
Oct 9, 11:44 AM EDT	Tornado Warning	JAX	Charlton, Clinch, Ware	31 min
Oct 9, 12:02 PM EDT	Severe Thunderstorm Warning	JAX	Clinch, Pierce, Ware	28 min
Oct 9, 12:16 PM EDT	Severe Thunderstorm Warning	JAX	Atkinson, Bacon, Clinch, Pierce, Ware	44 min
Oct 9, 12:18 PM EDT	Severe Thunderstorm Warning	JAX	Charlton	27 min
Oct 9, 12:48 PM EDT	Severe Thunderstorm Warning	JAX	Charlton	17 min
Oct 9, 12:54 PM EDT	Severe Thunderstorm Warning	JAX	Bacon, Ware	36 min
Oct 9, 1:24 PM EDT	Severe Thunderstorm Warning	JAX	Appling, Jeff Davis	25 min
Oct 9, 1:51 PM EDT	Severe Thunderstorm Warning	JAX	Coffee, Jeff Davis	21 min
Oct 9, 2:05 PM EDT	Severe Thunderstorm Warning	JAX	Camden	25 min
Oct 9, 3:07 PM EDT	Areal Flood Advisory	JAX	Brantley, Camden, Glynn, Wayne	113 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2008 Every severe thunderstorm warning in 2008

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.