Alert archive / South Carolina / Lake Wind Advisories in 2012

Lake Wind Advisory 10, NWS Charleston, SC

March 2, 2012Berkeley County, South Carolina

NWS Charleston, SC issued this lake wind advisory at Mar 2, 2012, 4:57 PM EST for Berkeley County, South Carolina. It took effect at Mar 3, 2012, 5:00 AM EST. It was in force for 11 hr.

The area

The counties it named.

The facts

Issued
Mar 2, 2012, 4:57 PM EST (21:57 UTC)
In effect from
Mar 3, 2012, 5:00 AM EST
Expired
Mar 3, 2012, 4:28 PM EST
In force
11 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 21:59 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

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 10.0 hours before the alert went out and 320 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, Greensboro/Hi Pt, NC at 12:00Z on 2012-03-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Greensboro/Hi Pt, NC at 12:00Z on 2012-03-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 141 square meters per square second.1939587897117136Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2084 m above ground
0-6 km bulk shear
66 kt
0-1 km storm-relative helicity
141 m²/s²
0-3 km storm-relative helicity
234 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 Mar 2, 4:55 PM EST, 2 minutes earlier.

Area forecast discussion, Mar 2, 4:55 PM EST, 2 minutes before
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Hazardous weather outlook, Mar 2, 12:33 PM EST, 4 hours 24 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHARLESTON SC
1233 PM EST FRI MAR 2 2012

SCZ045-031745-
INLAND BERKELEY-
1233 PM EST FRI MAR 2 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST SOUTH CAROLINA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

SEVERE WEATHER...A STRONG COLD FRONT WILL MOVE ACROSS THE REGION
IN THE LATE MORNING AND EARLY AFTERNOON HOURS ON SATURDAY. THE
POTENTIAL EXISTS FOR A LINE OF THUNDERSTORMS TO DEVELOP ALONG AND
JUST AHEAD OF THE COLD FRONT. ANY THUNDERSTORMS THAT DEVELOP WILL
BE CAPABLE OF PRODUCING DAMAGING WIND GUSTS.

LAKE WINDS...SOUTHWEST WINDS WILL INCREASE AHEAD OF A COLD FRONT
ACROSS LAKE MOULTRIE ON SATURDAY...AND A LAKE WIND ADVISORY MAY
EVENTUALLY BE NEEDED.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

AMZ354-374-GAZ087-088-099>101-114>119-137>141-SCZ040-042>044-047>052-
031745-
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-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-
1233 PM EST FRI MAR 2 2012

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

SEVERE WEATHER...A STRONG COLD FRONT WILL MOVE ACROSS THE REGION
IN THE LATE MORNING AND EARLY AFTERNOON HOURS ON SATURDAY. THE
POTENTIAL EXISTS FOR A LINE OF THUNDERSTORMS TO DEVELOP ALONG AND
JUST AHEAD OF THE COLD FRONT. ANY THUNDERSTORMS THAT DEVELOP WILL
BE CAPABLE OF PRODUCING DAMAGING WIND GUSTS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

AMZ330-350-352-031745-
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-
1233 PM EST FRI MAR 2 2012

...DENSE FOG ADVISORY IN EFFECT UNTIL 5 PM EST THIS AFTERNOON...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   DENSE FOG ADVISORY.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

SEVERE WEATHER...A STRONG COLD FRONT WILL MOVE ACROSS THE REGION
IN THE LATE MORNING AND EARLY AFTERNOON HOURS ON SATURDAY. THE
POTENTIAL EXISTS FOR A LINE OF THUNDERSTORMS TO DEVELOP ALONG AND
JUST AHEAD OF THE COLD FRONT. ANY THUNDERSTORMS THAT DEVELOP WILL
BE CAPABLE OF PRODUCING DAMAGING WIND GUSTS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 2, 12:17 PM ESTMarine Dense Fog AdvisoryCHS8 hr
Mar 2, 4:28 PM ESTSmall Craft AdvisoryCHS24 hr

Nearby

Lake Wind Advisories in South Carolina, 2012Every lake wind advisory in 2012

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.