Alert archive / South Carolina / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 101, NWS Charleston, SC

August 14, 2019Charleston County, Dorchester County, South Carolina

NWS Charleston, SC issued this severe thunderstorm warning at Aug 14, 2019, 4:37 PM EDT for Charleston County, Dorchester County, South Carolina. It was in force for 33 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
Aug 14, 2019, 4:37 PM EDT (20:37 UTC)
Expired
Aug 14, 2019, 5:10 PM EDT
In force
33 min
Issued by
NWS Charleston, SC
Area
Storm-based polygon
Tornado
Possible
Hail
0.88 in
Wind
60.0 mph

Counties Charleston County, SC, Dorchester County, SC

The radar

The Charleston,SC radar (KCLX), 86 km from the middle of the area, began a volume at 20:36 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

Charleston AFB, SC (KCHS), launched 12:00Z, 8.6 hours before the alert went out and 16 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-pSkew-T log-p diagram, Charleston AFB, SC at 12:00Z on 2019-08-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1389 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Charleston AFB, SC at 12:00Z on 2019-08-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 28 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
1389 J/kg
Mixed-layer CIN
-45 J/kg
Mixed-layer LCL
964 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
28 m²/s²
0-3 km storm-relative helicity
79 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 Aug 14, 4:11 PM EDT, 26 minutes earlier.

Area forecast discussion, Aug 14, 4:11 PM EDT, 26 minutes before
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Hazardous weather outlook, Aug 14, 3:32 PM EDT, 1 hour 5 minutes before
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In the hours before

Local storm report, Aug 14, 3:32 PM EDT, 1 hour 5 minutes before
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Local storm report, Aug 14, 3:44 PM EDT, 53 minutes before
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Local storm report, Aug 14, 3:47 PM EDT, 50 minutes before
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Special weather statement, Aug 14, 4:00 PM EDT, 37 minutes before
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Local storm report, Aug 14, 4:23 PM EDT, 14 minutes before
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Local storm report, Aug 14, 4:31 PM EDT, 6 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 14, 2:08 PM EDTSpecial Weather StatementCHSBerkeley37 min
Aug 14, 2:10 PM EDTSevere Thunderstorm WarningCHSBerkeley, Charleston, Dorchester65 min
Aug 14, 2:34 PM EDTAreal Flood AdvisoryCHSBerkeley, Charleston, Dorchester56 min
Aug 14, 3:03 PM EDTSpecial Weather StatementCHSBeaufort27 min
Aug 14, 3:07 PM EDTSpecial Weather StatementCHSBeaufort23 min
Aug 14, 3:12 PM EDTSevere Thunderstorm WarningCHSBerkeley, Charleston, Dorchester63 min
Aug 14, 3:29 PM EDTAreal Flood AdvisoryCHSBerkeley, Charleston, Dorchester91 min
Aug 14, 3:41 PM EDTSevere Thunderstorm WarningCHSBeaufort, Colleton64 min
Aug 14, 3:49 PM EDTSevere Thunderstorm WarningCHSBeaufort, Colleton, Hampton, Jasper56 min
Aug 14, 4:04 PM EDTSpecial Marine WarningCHS28 min
Aug 14, 4:09 PM EDTSevere Thunderstorm WarningCHSBeaufort, Colleton66 min
Aug 14, 4:18 PM EDTAreal Flood AdvisoryCHSBeaufort87 min
Aug 14, 4:51 PM EDTAreal Flood AdvisoryCHSBerkeley, Charleston, Colleton, Dorchester84 min
Aug 14, 3:34 AM EDTHeat AdvisoryCHSBulloch, Candler, Effingham, Evans, Long, Tattnall11 hr
Aug 14, 1:48 PM EDTSpecial Weather StatementCHSTattnall27 min
Aug 14, 2:17 PM EDTSpecial Weather StatementCHSTattnall28 min
Aug 14, 2:42 PM EDTSpecial Weather StatementCHSChatham48 min
Aug 14, 3:19 PM EDTSpecial Weather StatementCHSLiberty, Long41 min
Aug 14, 3:29 PM EDTAreal Flood AdvisoryCHSBryan, Chatham91 min
Aug 14, 3:35 PM EDTAreal Flood AdvisoryCHSBryan, Liberty, Long85 min
Aug 14, 4:00 PM EDTSpecial Weather StatementCHSLiberty45 min
Aug 14, 4:18 PM EDTAreal Flood AdvisoryCHSBryan, Bulloch, Effingham, Screven87 min
Aug 14, 4:25 PM EDTAreal Flood AdvisoryCHSLiberty, Long, McIntosh95 min
Aug 14, 4:40 PM EDTSpecial Weather StatementCHSMcIntosh50 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2019Every severe thunderstorm warning in 2019

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.