Alert archive / South Carolina / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 149, NWS Charleston, SC

July 26, 2010Berkeley County, South Carolina

NWS Charleston, SC issued this severe thunderstorm warning at Jul 26, 2010, 4:51 PM EDT for Berkeley County, South Carolina. It was in force for 54 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 26, 2010, 4:51 PM EDT (20:51 UTC)
Expired: Jul 26, 2010, 5:45 PM EDT
In force: 54 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 20:53 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
Jul 26, 2:53 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 8.9 hours before the alert went out and 33 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: 3073 J/kg
Mixed-layer CIN: -58 J/kg
Mixed-layer LCL: 856 m above ground
0-6 km bulk shear: 2 kt
0-1 km storm-relative helicity: 17 m²/s²
0-3 km storm-relative helicity: 108 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 26, 4:23 PM EDT, 28 minutes earlier.

Area forecast discussion, Jul 26, 4:23 PM EDT, 28 minutes before

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Hazardous weather outlook, Jul 26, 4:04 PM EDT, 47 minutes before

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In the hours before

Local storm report, Jul 26, 4:24 PM EDT, 27 minutes before

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Local storm report, Jul 26, 4:34 PM EDT, 17 minutes before

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Special weather statement, Jul 26, 4:34 PM EDT, 17 minutes before

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Local storm report, Jul 26, 4:37 PM EDT, 14 minutes before

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Local storm report, Jul 26, 4:40 PM EDT, 11 minutes before

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Local storm report, Jul 26, 4:47 PM EDT, 4 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 26, 3:48 AM EDT	Excessive Heat Warning	CHS	Bulloch, Candler, Effingham, Jenkins, Screven	15 hr
Jul 26, 2:34 PM EDT	Special Weather Statement	CHS	Screven	26 min
Jul 26, 2:45 PM EDT	Special Weather Statement	CHS	Liberty	30 min
Jul 26, 3:09 PM EDT	Special Weather Statement	CHS	Screven	51 min
Jul 26, 3:14 PM EDT	Severe Thunderstorm Warning	CHS	Screven	42 min
Jul 26, 3:37 PM EDT	Severe Thunderstorm Warning	CHS	Jenkins, Screven	23 min
Jul 26, 3:45 PM EDT	Heat Advisory	CHS	Bulloch, Candler, Effingham, Evans, Jenkins, Long and 2 more	28 hr
Jul 26, 3:56 PM EDT	Severe Thunderstorm Warning	CHS	Screven	64 min
Jul 26, 4:34 PM EDT	Special Weather Statement	CHS	Chatham	41 min
Jul 26, 5:02 PM EDT	Special Weather Statement	CHS	Effingham	43 min
Jul 26, 5:52 PM EDT	Severe Thunderstorm Warning	CHS	Bulloch, Screven	53 min
Jul 26, 5:54 PM EDT	Special Weather Statement	CHS	Effingham	36 min
Jul 26, 6:32 PM EDT	Special Weather Statement	CHS	Effingham	43 min
Jul 26, 6:50 PM EDT	Special Weather Statement	CHS	Bulloch	25 min
Jul 26, 7:15 PM EDT	Special Weather Statement	CHS	Bulloch	45 min
Jul 26, 1:30 PM EDT	Special Weather Statement	CHS	Dorchester	45 min
Jul 26, 2:22 PM EDT	Special Weather Statement	CHS	Beaufort	38 min
Jul 26, 2:27 PM EDT	Severe Thunderstorm Warning	CHS	Beaufort	48 min
Jul 26, 2:47 PM EDT	Special Weather Statement	CHS	Colleton	43 min
Jul 26, 2:52 PM EDT	Special Weather Statement	CHS	Dorchester	38 min
Jul 26, 3:00 PM EDT	Special Weather Statement	CHS	Jasper	45 min
Jul 26, 3:02 PM EDT	Special Weather Statement	CHS	Charleston	28 min
Jul 26, 3:02 PM EDT	Severe Thunderstorm Warning	CHS	Berkeley, Charleston, Colleton, Dorchester	43 min
Jul 26, 3:06 PM EDT	Special Weather Statement	CHS	Georgetown	39 min
Jul 26, 3:11 PM EDT	Severe Thunderstorm Warning	CHS	Beaufort, Colleton, Hampton	54 min
Jul 26, 3:28 PM EDT	Severe Thunderstorm Warning	CHS	Charleston, Dorchester	62 min
Jul 26, 3:32 PM EDT	Severe Thunderstorm Warning	CHS	Colleton, Hampton	58 min
Jul 26, 3:33 PM EDT	Areal Flood Advisory	CHS	Charleston	41 min
Jul 26, 3:46 PM EDT	Special Weather Statement	CHS	Dorchester	44 min
Jul 26, 3:48 PM EDT	Special Weather Statement	CHS	Allendale	57 min
Jul 26, 3:51 PM EDT	Special Weather Statement	CHS	Charleston	39 min
Jul 26, 4:00 PM EDT	Severe Thunderstorm Warning	CHS	Berkeley, Charleston	60 min
Jul 26, 4:02 PM EDT	Severe Thunderstorm Warning	CHS	Charleston, Colleton	34 min
Jul 26, 4:03 PM EDT	Severe Thunderstorm Warning	CHS	Berkeley, Charleston, Dorchester	57 min
Jul 26, 4:19 PM EDT	Severe Thunderstorm Warning	CHS	Berkeley, Charleston, Dorchester	41 min
Jul 26, 4:26 PM EDT	Severe Thunderstorm Warning	CHS	Colleton, Hampton	29 min
Jul 26, 4:40 PM EDT	Areal Flood Advisory	CHS	Berkeley, Charleston, Dorchester	47 min
Jul 26, 5:00 PM EDT	Areal Flood Advisory	CHS	Berkeley, Charleston	56 min
Jul 26, 5:38 PM EDT	Special Weather Statement	CHS	Berkeley	67 min
Jul 26, 7:08 PM EDT	Special Weather Statement	CHS	Jasper	52 min

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.