Alert archive / Georgia / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 51, NWS Charleston, SC

May 5, 2009Jenkins County, Screven County, Georgia

NWS Charleston, SC issued this severe thunderstorm warning at May 5, 2009, 10:21 AM EDT for Jenkins County, Screven County, Georgia. It was in force for 39 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: May 5, 2009, 10:21 AM EDT (14:21 UTC)
Expired: May 5, 2009, 11:00 AM EDT
In force: 39 min
Issued by: NWS Charleston, SC
Area: Storm-based polygon

Counties Jenkins County, GA, Screven County, GA

The radar

The Charleston,SC radar (KCLX), 71 km from the middle of the area, began a volume at 14:24 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 5, 10:18 AM EDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 2.4 hours before the alert went out and 168 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: 1007 J/kg
Mixed-layer CIN: -49 J/kg
Mixed-layer LCL: 841 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 71 m²/s²
0-3 km storm-relative helicity: 140 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.8

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 Charleston, SC wrote its last area forecast discussion before this severe thunderstorm warning went out at May 5, 7:13 AM EDT, 3 hours 8 minutes earlier.

Area forecast discussion, May 5, 7:13 AM EDT, 3 hours 8 minutes before

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Hazardous weather outlook, May 5, 3:44 AM EDT, 6 hours 37 minutes before

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In the hours before

Special weather statement, May 5, 7:36 AM EDT, 2 hours 45 minutes before

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Special weather statement, May 5, 7:58 AM EDT, 2 hours 23 minutes before

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Local storm report, May 5, 9:41 AM EDT, 40 minutes before

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Special weather statement, May 5, 9:58 AM EDT, 23 minutes before

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The office that day

Everything else NWS Charleston, SC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 5, 11:31 AM EDT	Areal Flood Advisory	CHS	Jenkins	59 min
May 5, 11:46 AM EDT	Areal Flood Advisory	CHS	Screven	89 min
May 5, 12:15 PM EDT	Areal Flood Advisory	CHS	Screven	90 min
May 5, 12:28 PM EDT	Areal Flood Advisory	CHS	Jenkins	92 min
May 5, 1:42 PM EDT	Severe Thunderstorm Warning	CHS	Bulloch, Jenkins, Screven	48 min
May 5, 2:58 PM EDT	Severe Thunderstorm Warning	CHS	Effingham, Screven	47 min
May 5, 3:14 PM EDT	Severe Thunderstorm Warning	CHS	Bulloch, Effingham, Screven	46 min
May 5, 4:41 PM EDT	Severe Thunderstorm Warning	CHS	Chatham, Effingham	64 min
May 5, 4:52 PM EDT	Special Marine Warning	CHS		83 min
May 5, 5:40 PM EDT	Severe Thunderstorm Warning	CHS	Long, McIntosh	65 min
May 5, 6:03 PM EDT	Tornado Warning	CHS	McIntosh	42 min
May 5, 6:15 PM EDT	Special Marine Warning	CHS		90 min
May 5, 6:37 PM EDT	Severe Thunderstorm Warning	CHS	McIntosh	38 min
May 5, 7:18 PM EDT	Severe Thunderstorm Warning	CHS	McIntosh	28 min
May 4, 8:02 PM EDT	Severe Thunderstorm Warning	CHS	Berkeley, Dorchester	24 min
May 4, 9:29 PM EDT	Severe Thunderstorm Warning	CHS	Colleton, Hampton	61 min
May 5, 1:57 PM EDT	Severe Thunderstorm Warning	CHS	Charleston, Colleton, Dorchester	29 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2009 Every severe thunderstorm warning in 2009

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.