Alert archive / South Carolina / Special Weather Statements in 2023

Special Weather Statement, NWS Charleston, SC

June 21, 2023Hampton County, South Carolina

NWS Charleston, SC issued this special weather statement at Jun 21, 2023, 4:21 PM EDT for Hampton County, South Carolina. It was in force for 24 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 21, 2023, 4:21 PM EDT (20:21 UTC)
Expired: Jun 21, 2023, 4:45 PM EDT
In force: 24 min
Issued by: NWS Charleston, SC
Hail: 0.88 in
Wind: 55

County Hampton County, SC

The radar

The Charleston,SC radar (KCLX), 45 km from the middle of the area, began a volume at 20:21 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

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 8.4 hours before the alert went out and 330 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: 203 J/kg
Mixed-layer CIN: -15 J/kg
Mixed-layer LCL: 576 m above ground
0-6 km bulk shear: 2 kt
0-1 km storm-relative helicity: 6 m²/s²
0-3 km storm-relative helicity: 27 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jun 21, 3:47 PM EDT, 34 minutes earlier.

Area forecast discussion, Jun 21, 3:47 PM EDT, 34 minutes before

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Hazardous weather outlook, Jun 21, 12:13 PM EDT, 4 hours 8 minutes before

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In the hours before

Local storm report, Jun 21, 2:16 PM EDT, 2 hours 5 minutes before

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Special weather statement, Jun 21, 2:26 PM EDT, 1 hour 55 minutes before

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Local storm report, Jun 21, 2:57 PM EDT, 1 hour 24 minutes before

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Special weather statement, Jun 21, 3:35 PM EDT, 46 minutes before

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Local storm report, Jun 21, 3:55 PM EDT, 26 minutes before

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Special weather statement, Jun 21, 4:21 PM EDT, 0 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
Jun 20, 8:58 PM EDT	Areal Flood Advisory	CHS	Allendale, Hampton	92 min
Jun 21, 1:33 PM EDT	Special Weather Statement	CHS	Berkeley	27 min
Jun 21, 2:04 PM EDT	Special Weather Statement	CHS	Berkeley	41 min
Jun 21, 2:34 PM EDT	Severe Thunderstorm Warning	CHS	Berkeley	56 min
Jun 21, 3:00 PM EDT	Small Craft Advisory	CHS		43 hr
Jun 20, 8:50 PM EDT	Special Weather Statement	CHS	Screven	40 min
Jun 21, 1:49 PM EDT	Special Weather Statement	CHS	Evans, Tattnall	41 min
Jun 21, 2:26 PM EDT	Special Weather Statement	CHS	Bryan, Bulloch, Candler, Effingham, Evans, Tattnall	49 min
Jun 21, 3:35 PM EDT	Special Weather Statement	CHS	Effingham	40 min

Nearby

Special Weather Statements in South Carolina, 2023 Every special weather statement in 2023

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.