Alert archive / South Carolina / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 90, NWS Charleston, SC

July 10, 2010Berkeley County, South Carolina

NWS Charleston, SC issued this severe thunderstorm warning at Jul 10, 2010, 8:01 PM EDT for Berkeley County, South Carolina. It was in force for 59 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: Jul 10, 2010, 8:01 PM EDT (00:01 UTC)
Expired: Jul 10, 2010, 9:00 PM EDT
In force: 59 min
Issued by: NWS Charleston, SC
Area: Storm-based polygon

County Berkeley County, SC

The radar

The Charleston,SC radar (KCLX), 118 km from the middle of the area, began a volume at 00:02 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

Newport, NC (KMHX), launched 00:00Z, 0.0 hours before the alert went out and 333 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: 1953 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 556 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: -12 m²/s²
0-3 km storm-relative helicity: -4 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 Charleston, SC wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 10, 7:22 PM EDT, 39 minutes earlier.

Area forecast discussion, Jul 10, 7:22 PM EDT, 39 minutes before

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Hazardous weather outlook, Jul 10, 7:30 PM EDT, 31 minutes before

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In the hours before

Local storm report, Jul 10, 6:51 PM EDT, 1 hour 10 minutes before

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Local storm report, Jul 10, 6:57 PM EDT, 1 hour 4 minutes before

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Special weather statement, Jul 10, 7:18 PM EDT, 43 minutes before

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Special weather statement, Jul 10, 7:32 PM EDT, 29 minutes before

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Special weather statement, Jul 10, 7:46 PM EDT, 15 minutes before

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Special weather statement, Jul 10, 7:51 PM EDT, 10 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
Jul 10, 9:07 PM EDT	Special Weather Statement	CHS	Evans	38 min
Jul 10, 9:53 PM EDT	Special Weather Statement	CHS	Effingham	52 min
Jul 11, 3:32 AM EDT	Heat Advisory	CHS	Bulloch, Candler, Effingham, Evans, Jenkins, Long and 2 more	14 hr
Jul 11, 2:26 PM EDT	Special Weather Statement	CHS	Jenkins, Screven	64 min
Jul 11, 2:37 PM EDT	Severe Thunderstorm Warning	CHS	Jenkins, Screven	53 min
Jul 11, 2:51 PM EDT	Special Weather Statement	CHS	Screven	39 min
Jul 11, 3:29 PM EDT	Coastal Flood Advisory	CHS		6 hr
Jul 11, 3:37 PM EDT	Special Weather Statement	CHS	Bulloch, Effingham	38 min
Jul 11, 4:08 PM EDT	Severe Thunderstorm Warning	CHS	Bryan, Bulloch, Effingham	52 min
Jul 11, 4:11 PM EDT	Areal Flood Advisory	CHS	Bryan, Bulloch, Effingham	79 min
Jul 11, 4:25 PM EDT	Severe Thunderstorm Warning	CHS	Bryan, Chatham, Effingham	65 min
Jul 11, 4:27 PM EDT	Special Marine Warning	CHS		2 hr
Jul 11, 4:58 PM EDT	Special Weather Statement	CHS	McIntosh	32 min
Jul 11, 5:00 PM EDT	Severe Thunderstorm Warning	CHS	McIntosh	60 min
Jul 11, 5:02 PM EDT	Severe Thunderstorm Warning	CHS	Bryan, Chatham, Liberty, McIntosh	58 min
Jul 11, 5:15 PM EDT	Special Weather Statement	CHS	Effingham	60 min
Jul 11, 5:27 PM EDT	Severe Thunderstorm Warning	CHS	Bryan, Chatham	40 min
Jul 11, 5:35 PM EDT	Severe Thunderstorm Warning	CHS	Chatham, Effingham	55 min
Jul 11, 5:50 PM EDT	Severe Thunderstorm Warning	CHS	Liberty, Long, McIntosh	55 min
Jul 11, 6:28 PM EDT	Special Marine Warning	CHS		50 min
Jul 10, 11:30 PM EDT	Areal Flood Advisory	CHS	Berkeley, Charleston, Colleton, Dorchester	90 min
Jul 11, 1:05 AM EDT	Areal Flood Advisory	CHS	Berkeley, Charleston, Dorchester	3 hr

Nearby

Severe Thunderstorm Warnings in South Carolina, 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.