Alert archive / South Carolina / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 36, NWS Charleston, SC

April 7, 2022Berkeley County, Charleston County, Dorchester County, South Carolina

NWS Charleston, SC issued this severe thunderstorm warning at Apr 7, 2022, 2:38 PM EDT for Berkeley County, Charleston County, Dorchester County, South Carolina. It was in force for 52 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: Apr 7, 2022, 2:38 PM EDT (18:38 UTC)
Expired: Apr 7, 2022, 3:30 PM EDT
In force: 52 min
Issued by: NWS Charleston, SC
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Berkeley County, SC, Charleston County, SC, Dorchester County, SC

The radar

The Charleston,SC radar (KCLX), 96 km from the middle of the area, began a volume at 18:37 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, 6.6 hours before the alert went out and 317 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: 1734 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 565 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 201 m²/s²
0-3 km storm-relative helicity: 228 m²/s²
Significant tornado parameter: 2.2
Supercell composite: 9.0

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 Apr 7, 1:49 PM EDT, 49 minutes earlier.

Area forecast discussion, Apr 7, 1:49 PM EDT, 49 minutes before

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Hazardous weather outlook, Apr 7, 2:57 AM EDT, 11 hours 41 minutes before

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In the hours before

Local storm report, Apr 7, 1:06 PM EDT, 1 hour 32 minutes before

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Local storm report, Apr 7, 1:12 PM EDT, 1 hour 26 minutes before

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Local storm report, Apr 7, 1:15 PM EDT, 1 hour 23 minutes before

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Special weather statement, Apr 7, 1:28 PM EDT, 1 hour 10 minutes before

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Local storm report, Apr 7, 1:41 PM EDT, 57 minutes before

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Local storm report, Apr 7, 2:37 PM EDT, 1 minute 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
Apr 6, 8:24 PM EDT	Severe Thunderstorm Warning	CHS	Berkeley, Dorchester	66 min
Apr 6, 8:30 PM EDT	Severe Thunderstorm Warning	CHS	Berkeley, Charleston, Colleton, Dorchester	45 min
Apr 6, 8:51 PM EDT	Areal Flood Advisory	CHS	Berkeley	3 hr
Apr 6, 9:00 PM EDT	Severe Thunderstorm Warning	CHS	Berkeley, Charleston	60 min
Apr 6, 9:24 PM EDT	Special Marine Warning	CHS		96 min
Apr 6, 9:31 PM EDT	Severe Thunderstorm Warning	CHS	Allendale, Hampton, Jasper	44 min
Apr 6, 10:13 PM EDT	Special Weather Statement	CHS	Beaufort, Colleton, Hampton, Jasper	47 min
Apr 6, 10:17 PM EDT	Special Marine Warning	CHS		118 min
Apr 6, 10:40 PM EDT	Severe Thunderstorm Warning	CHS	Beaufort, Colleton	35 min
Apr 6, 10:44 PM EDT	Special Marine Warning	CHS		2 hr
Apr 6, 10:53 PM EDT	Severe Thunderstorm Warning	CHS	Berkeley, Charleston, Colleton, Dorchester	67 min
Apr 6, 10:59 PM EDT	Tornado Warning	CHS	Colleton	18 min
Apr 6, 11:55 PM EDT	Special Weather Statement	CHS	Berkeley	35 min
Apr 7, 12:12 AM EDT	Special Marine Warning	CHS		43 min
Apr 7, 12:39 AM EDT	Special Marine Warning	CHS		51 min
Apr 7, 3:15 AM EDT	Special Marine Warning	CHS		64 min
Apr 7, 3:52 AM EDT	Special Marine Warning	CHS		113 min
Apr 7, 1:28 PM EDT	Special Weather Statement	CHS	Beaufort	47 min
Apr 7, 1:48 PM EDT	Special Marine Warning	CHS		29 min
Apr 7, 3:29 PM EDT	Special Marine Warning	CHS		2 hr
Apr 6, 8:25 PM EDT	Severe Thunderstorm Warning	CHS	Bryan, Bulloch, Candler, Evans, Jenkins, Liberty and 3 more	65 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2022 Every severe thunderstorm warning in 2022

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.