Alert archive / South Carolina / Lake Wind Advisories in 2012
Lake Wind Advisory 21, NWS Charleston, SC
NWS Charleston, SC issued this lake wind advisory at Nov 13, 2012, 3:25 PM EST for Berkeley County, South Carolina. It was in force for 19 hr.
The area
The counties it named.
The facts
- Issued
- Nov 13, 2012, 3:25 PM EST (20:25 UTC)
- Expired
- Nov 14, 2012, 10:17 AM EST
- In force
- 19 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 20:28 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, 8.4 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
- 528 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 795 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 60 m²/s²
- 0-3 km storm-relative helicity
- 15 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.0
The text
As transmitted, in the capitals the NWS used until 2016.
445 WWUS72 KCHS 132025 NPWCHS URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE CHARLESTON SC 325 PM EST TUE NOV 13 2012 SCZ045-140430- /O.NEW.KCHS.LW.Y.0021.121113T2025Z-121114T1500Z/ INLAND BERKELEY- INCLUDING THE CITY OF...MONCKS CORNER 325 PM EST TUE NOV 13 2012 ...LAKE WIND ADVISORY IN EFFECT UNTIL 10 AM EST WEDNESDAY FOR LAKE MOULTRIE... THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A LAKE WIND ADVISORY...WHICH IS IN EFFECT UNTIL 10 AM EST WEDNESDAY. * WINDS: NORTH TO NORTHEAST WINDS INCREASING TO 15 TO 20 KNOTS WITH GUSTS TO 25 KNOTS. * WAVES: 1 TO 2 FEET. * TIMING: BEGINNING LATE THIS EVENING AND CONTINUING THROUGH LATE WEDNESDAY MORNING. * IMPACTS: THE COMBINATION OF INCREASING WINDS AND WAVES WILL MAKE CONDITIONS DIFFICULT FOR SMALL CRAFT ON THE LAKE. PRECAUTIONARY/PREPAREDNESS ACTIONS... MARINERS SHOULD USE EXTRA CAUTION ON LAKE MOULTRIE THROUGH LATE WEDNESDAY MORNING...ESPECIALLY ON THE OPEN LAKE WATERS. STRONG WINDS MAY LEAD TO LARGE WAVES WHICH CAN CAPSIZE BOATS. && $$
3 follow-up statements
890 WWUS72 KCHS 140311 NPWCHS URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE CHARLESTON SC 1011 PM EST TUE NOV 13 2012 SCZ045-141115- /O.CON.KCHS.LW.Y.0021.000000T0000Z-121114T1500Z/ INLAND BERKELEY- INCLUDING THE CITY OF...MONCKS CORNER 1011 PM EST TUE NOV 13 2012 ...LAKE WIND ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST WEDNESDAY FOR LAKE MOULTRIE... * WINDS: NORTH TO NORTHEAST WINDS 15 TO 20 KNOTS WITH GUSTS TO 25 KNOTS. * WAVES: 1 TO 2 FEET. * TIMING: CONTINUING THROUGH LATE WEDNESDAY MORNING. * IMPACTS: THE COMBINATION OF INCREASING WINDS AND WAVES WILL MAKE CONDITIONS DIFFICULT FOR SMALL CRAFT ON THE LAKE. PRECAUTIONARY/PREPAREDNESS ACTIONS... MARINERS SHOULD USE EXTRA CAUTION ON LAKE MOULTRIE THROUGH LATE WEDNESDAY MORNING...ESPECIALLY ON THE OPEN LAKE WATERS. STRONG WINDS MAY LEAD TO LARGE WAVES WHICH CAN CAPSIZE BOATS. && $$
593 WWUS72 KCHS 140856 NPWCHS URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE CHARLESTON SC 356 AM EST WED NOV 14 2012 SCZ045-141700- /O.EXT.KCHS.LW.Y.0021.000000T0000Z-121114T2200Z/ INLAND BERKELEY- INCLUDING THE CITY OF...MONCKS CORNER 356 AM EST WED NOV 14 2012 ...LAKE WIND ADVISORY NOW IN EFFECT UNTIL 5 PM EST THIS AFTERNOON FOR LAKE MOULTRIE... * WINDS: NORTHEAST WINDS AROUND 20 KT. * WAVES: 1 TO 2 FEET...HIGHEST SOUTHERN PORTIONS OF THE LAKE. * IMPACTS: THE COMBINATION OF HIGH WINDS AND WAVES WILL MAKE CONDITIONS DIFFICULT FOR SMALL CRAFT. PRECAUTIONARY/PREPAREDNESS ACTIONS... MARINERS SHOULD USE EXTRA CAUTION ON LAKE MOULTRIE THROUGH THIS AFTERNOON...ESPECIALLY ON THE OPEN LAKE WATERS. STRONG WINDS MAY LEAD TO LARGE WAVES WHICH CAN CAPSIZE BOATS. && $$
959 WWUS72 KCHS 141517 NPWCHS URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE CHARLESTON SC 1017 AM EST WED NOV 14 2012 SCZ045-141630- /O.CAN.KCHS.LW.Y.0021.000000T0000Z-121114T2200Z/ INLAND BERKELEY- INCLUDING THE CITY OF...MONCKS CORNER 1017 AM EST WED NOV 14 2012 ...LAKE WIND ADVISORY IS CANCELLED FOR LAKE MOULTRIE... THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS CANCELLED THE LAKE WIND ADVISORY. $$
The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 13, 3:39 AM EST | Coastal Flood Advisory | CHS | 5 hr | |
| Nov 13, 3:30 PM EST | Coastal Flood Watch | CHS | 24 hr | |
| Nov 13, 3:30 PM EST | Coastal Flood Advisory | CHS | 19 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.