Alert archive / South Carolina / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 88, NWS Charleston, SC

May 14, 2006Charleston County, South Carolina

NWS Charleston, SC issued this severe thunderstorm warning at May 14, 2006, 10:15 PM EDT for Charleston County, South Carolina. It was in force for 45 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
May 14, 2006, 10:15 PM EDT (02:15 UTC)
Expired
May 14, 2006, 11:00 PM EDT
In force
45 min
Issued by
NWS Charleston, SC
Area
Counties, with a storm outline in the text

County Charleston County, SC

The radar

The Charleston,SC radar (KCLX), 103 km from the middle of the area, began a volume at 02:17 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.

IssuedProductOfficeLasted
May 14, 6:52 PM EDTTornado WatchSPC5 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 00:00Z, 2.3 hours before the alert went out and 18 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 00:00Z on 2006-05-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 576 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 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 00:00Z on 2006-05-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 217 square meters per square second.19395878Sfc1 km3 km6 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
576 J/kg
Mixed-layer CIN
-45 J/kg
Mixed-layer LCL
979 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
217 m²/s²
0-3 km storm-relative helicity
256 m²/s²
Significant tornado parameter
0.8
Supercell composite
3.3

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 May 14, 9:53 PM EDT, 22 minutes earlier.

Area forecast discussion, May 14, 9:53 PM EDT, 22 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHARLESTON SC
953 PM EDT SUN MAY 14 2006

.SHORT TERM /TONIGHT/...HAVE COORDINATED WITH THE SPC TO LOCALLY
EXTEND THE TORNADO WATCH UNTIL MIDNIGHT. STORMS STILL SHOWING
ROTATION. FURTHER SOUTH...WILL LET SEVERE THUNDERSTORM WATCH EXPIRE
AT 10 PM. AN ISOLATED SEVERE STORM IS POSSIBLE BUT IS NOT WORTH
EXTENDING THE WATCH THERE.

STORMS CONTINUE TO DEVELOP THIS EVENING ASSOCIATED WITH A STRONG JET
AND COLD TEMPERATURES ALOFT. WILL KEEP LIKELY POPS ALL AREAS AS
STORMS SHOULD SHIFT INTO SOUTHEAST GEORGIA OVERNIGHT.

&&

.MARINE...WINDS AND SEAS WILL BE AFFECTED BY THUNDERSTORMS OVER THE
NEXT FEW HOURS BUT WILL TRY TO SHOW GENERAL CONDITIONS. LOCAL
TORNADO WATCH WILL BE EXTENDED THROUGH MIDNIGHT FOR THE CHARLESTON
HARBOR AND THE COASTAL WATERS FROM SOUTH SANTEE TO EDISTO.

&&

.LAKE WINDS...WILL LET LAKE WIND ADVISORY EXPIRE.

&&

.AVIATION...BUSY NIGHT AT KCHS WITH LARGE HAIL AND WIND GUSTS TO 47
KNOTS. EXPECT SEVERAL MORE HOURS OF STORMS THERE. EXPECT CONDITIONS
TO BECOME MORE ACTIVE NEAR KSAV OVERNIGHT.

&&

.CHS WATCHES/WARNINGS/ADVISORIES...
GA...TORNADO WATCH UNTIL MIDNIGHT GAZ087-088.
SC...TORNADO WATCH UNTIL MIDNIGHT SCZ040-042>045-049-050.
MARINE...TORNADO WATCH UNTIL MIDNIGHT AMZ330-350.

&&

SCW

In the hours before

Local storm report, May 14, 9:55 PM EDT, 20 minutes before
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Local storm report, May 14, 9:57 PM EDT, 18 minutes before
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Local storm report, May 14, 9:58 PM EDT, 17 minutes before
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Local storm report, May 14, 9:59 PM EDT, 16 minutes before
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Local storm report, May 14, 10:02 PM EDT, 13 minutes before
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Local storm report, May 14, 10:05 PM EDT, 10 minutes before
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      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

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

IssuedProductOfficeCountiesLasted
May 14, 9:02 PM EDTSpecial Marine WarningCHS118 min
May 14, 9:08 PM EDTSevere Thunderstorm WarningCHSEffingham22 min
May 14, 9:19 PM EDTSevere Thunderstorm WarningCHSChatham31 min
May 14, 9:42 PM EDTSpecial Marine WarningCHS93 min
May 14, 9:46 PM EDTSpecial Marine WarningCHS89 min
May 14, 11:03 PM EDTSpecial Marine WarningCHS57 min
May 14, 11:06 PM EDTSevere Thunderstorm WarningCHSLiberty, McIntosh38 min
May 14, 11:14 PM EDTSpecial Marine WarningCHS61 min
May 14, 11:25 PM EDTSpecial Marine WarningCHS95 min
May 15, 3:17 AM EDTSevere Thunderstorm WarningCHSLong28 min
May 15, 3:39 AM EDTSevere Thunderstorm WarningCHSLiberty, McIntosh36 min
May 15, 12:49 PM EDTSevere Thunderstorm WarningCHSMcIntosh26 min
May 15, 3:36 PM EDTSpecial Marine WarningCHS39 min
May 14, 8:10 PM EDTTornado WarningCHSCharleston, Dorchester65 min
May 14, 8:20 PM EDTSevere Thunderstorm WarningCHSBerkeley55 min
May 14, 8:31 PM EDTSevere Thunderstorm WarningCHSColleton29 min
May 14, 8:35 PM EDTTornado WarningCHSColleton25 min
May 14, 8:39 PM EDTTornado WarningCHSBerkeley36 min
May 14, 9:01 PM EDTSevere Thunderstorm WarningCHSColleton29 min
May 14, 9:12 PM EDTTornado WarningCHSCharleston63 min
May 14, 9:33 PM EDTSevere Thunderstorm WarningCHSBeaufort42 min
May 14, 9:41 PM EDTSevere Thunderstorm WarningCHSBerkeley34 min
May 15, 6:02 PM EDTSevere Thunderstorm WarningCHSColleton28 min
May 15, 6:18 PM EDTSevere Thunderstorm WarningCHSDorchester27 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2006Every severe thunderstorm warning in 2006

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.