Alert archive / South Carolina / Lake Wind Advisories in 2011

Lake Wind Advisory 3, NWS Charleston, SC

January 11, 2011Berkeley County, South Carolina

NWS Charleston, SC issued this lake wind advisory at Jan 11, 2011, 4:03 PM EST for Berkeley County, South Carolina. It was in force for 30 hr.

The area

The counties it named.

The facts

Issued
Jan 11, 2011, 4:03 PM EST (21:03 UTC)
Expired
Jan 12, 2011, 9:54 PM EST
In force
30 hr
Issued by
NWS Charleston, SC

County Berkeley County, SC

The radar

The Charleston,SC radar (KCLX), 118 km from the middle of the area, began a volume at 21:04 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, 9.1 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-pSkew-T log-p diagram, Charleston AFB, SC at 12:00Z on 2011-01-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 8 joules per kilogram.LCLEL10008507005003002001001 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 2011-01-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 19 square meters per square second.1939587897Sfc1 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
8 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
371 m above ground
0-6 km bulk shear
69 kt
0-1 km storm-relative helicity
19 m²/s²
0-3 km storm-relative helicity
100 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 lake wind advisory 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 lake wind advisory went out at Jan 11, 3:55 PM EST, 8 minutes earlier.

Area forecast discussion, Jan 11, 3:55 PM EST, 8 minutes before
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Hazardous weather outlook, Jan 11, 10:49 AM EST, 5 hours 14 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE CHARLESTON SC
1049 AM EST TUE JAN 11 2011

GAZ087-088-099>101-114>119-137>141-SCZ040-042>044-047>052-121000-
JENKINS-SCREVEN-CANDLER-BULLOCH-EFFINGHAM-TATTNALL-EVANS-
INLAND BRYAN-COASTAL BRYAN-INLAND CHATHAM-COASTAL CHATHAM-LONG-
INLAND LIBERTY-COASTAL LIBERTY-INLAND MCINTOSH-COASTAL MCINTOSH-
ALLENDALE-HAMPTON-INLAND COLLETON-DORCHESTER-INLAND JASPER-BEAUFORT-
COASTAL COLLETON-CHARLESTON-COASTAL JASPER-TIDAL BERKELEY-
1049 AM EST TUE JAN 11 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST GEORGIA AND
SOUTHEAST SOUTH CAROLINA.

.DAY ONE...TODAY AND TONIGHT.

BLACK ICE...DEPENDING UPON THE AMOUNT OF DRYING THAT TAKES PLACE
ACROSS THE AREA TODAY...AS TEMPERATURES FALL BELOW FREEZING
TONIGHT THERE IS STILL THE POSSIBILITY OF PATCHY BLACK ICE.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

SCZ045-121000-
INLAND BERKELEY-
1049 AM EST TUE JAN 11 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST SOUTH CAROLINA.

.DAY ONE...TODAY AND TONIGHT.

BLACK ICE...DEPENDING UPON THE AMOUNT OF DRYING THAT TAKES PLACE
ACROSS THE AREA TODAY...AS TEMPERATURES FALL BELOW FREEZING
TONIGHT THERE IS STILL THE POSSIBILITY OF PATCHY BLACK ICE.

LAKE WINDS...COLDER AIR MOVING ACROSS THE RELATIVELY WARMER
WATERS OF LAKE MOULTRIE MAY REACH 20 KNOTS...AND A LAKE WIND
ADVISORY MAY BE REQUIRED TONIGHT.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

LAKE WINDS...COLDER AIR MOVING ACROSS THE RELATIVELY WARMER
WATERS OF LAKE MOULTRIE MAY REACH 20 KNOTS...AND A LAKE WIND
ADVISORY MAY BE REQUIRED WEDNESDAY AND WEDNESDAY NIGHT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

AMZ330-350-352-354-374-121000-
CHARLESTON HARBOR-
WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20 NM-
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM...INCLUDING
GRAYS REEF NATIONAL MARINE SANCTUARY-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA EXTENDING FROM 20 TO
60 NM-
1049 AM EST TUE JAN 11 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS.

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Local storm report, Jan 11, 3:29 PM EST, 34 minutes before
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Local storm report, Jan 11, 3:35 PM EST, 28 minutes before
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Local storm report, Jan 11, 3:48 PM EST, 15 minutes before
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Local storm report, Jan 11, 3:58 PM EST, 5 minutes before
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Local storm report, Jan 11, 4:01 PM EST, 2 minutes before
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Local storm report, Jan 11, 4:03 PM EST, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jan 10, 10:19 PM ESTSmall Craft AdvisoryCHS7 hr
Jan 11, 3:01 AM ESTMarine Dense Fog AdvisoryCHS4 hr
Jan 11, 3:23 PM ESTSmall Craft AdvisoryCHS44 hr

Nearby

Lake Wind Advisories in South Carolina, 2011Every lake wind advisory in 2011

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.