Alert archive / South Carolina / Lake Wind Advisories in 2007
Lake Wind Advisory 20, NWS Charleston, SC
NWS Charleston, SC issued this lake wind advisory at Apr 12, 2007, 2:50 AM EDT for Berkeley County, South Carolina. It took effect at Apr 12, 2007, 11:00 AM EDT. It was in force for 10 hr.
The area
The counties it named.
The facts
- Issued
- Apr 12, 2007, 2:50 AM EDT (06:50 UTC)
- In effect from
- Apr 12, 2007, 11:00 AM EDT
- Expired
- Apr 12, 2007, 8:55 PM EDT
- In force
- 10 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 06:49 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 00:00Z, 6.8 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.
- Mixed-layer CAPE
- 289 J/kg
- Mixed-layer CIN
- -22 J/kg
- Mixed-layer LCL
- 740 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 125 m²/s²
- 0-3 km storm-relative helicity
- 209 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.4
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 Apr 11, 11:32 PM EDT, 3 hours 18 minutes earlier.
Area forecast discussion, Apr 11, 11:32 PM EDT, 3 hours 18 minutes before
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</html>Hazardous weather outlook, Apr 11, 11:23 PM EDT, 3 hours 27 minutes before
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Special weather statement, Apr 11, 9:12 PM EDT, 5 hours 38 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHARLESTON SC 912 PM EDT WED APR 11 2007 GAZ099-120200- CANDLER- 912 PM EDT WED APR 11 2007 ...STRONG THUNDERSTORMS WILL IMPACT CANDLER COUNTY THROUGH 1000 PM EDT... AT 907 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM CAPABLE OF PRODUCING 1/2 INCH HAIL...AND GUSTY WINDS OF 35 TO 45 MPH. THIS STORM WAS LOCATED NEAR CANOE...OR ABOUT 7 MILES WEST OF METTER...MOVING EAST AT 30 MPH. AREAS IN AND AROUND METTER AND PULASKI WILL BE IMPACTED THROUGH 1000 PM EDT. FREQUENT LIGHTNING IS OCCURRING WITH THIS THUNDERSTORM. IF OUTDOORS...STAY AWAY FROM ISOLATED HIGH OBJECTS. IF INDOORS...STAY AWAY FROM WINDOWS AND DOORS. AVOID USING TELEPHONES UNLESS IT IS AN EMERGENCY. BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROACH. SEEK SHELTER IN A STURDY BUILDING AND STAY AWAY FROM WINDOWS. PLEASE CONTACT THE NATIONAL WEATHER SERVICE IN CHARLESTON TOLL FREE AT 1-888-383-2024 IF YOU OBSERVE SEVERE WEATHER.
Local storm report, Apr 11, 9:35 PM EDT, 5 hours 15 minutes before
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</html>Special weather statement, Apr 11, 9:51 PM EDT, 4 hours 59 minutes before
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</html>Special weather statement, Apr 11, 10:18 PM EDT, 4 hours 32 minutes before
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</html>The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 11, 9:16 PM EDT | Severe Thunderstorm Warning | CHS | Candler | 44 min |
Nearby
Lake Wind Advisories in South Carolina, 2007Every lake wind advisory in 2007
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.