Alert archive / South Carolina / Wind Advisories in 2011
Wind Advisory 2, NWS Charleston, SC
NWS Charleston, SC issued this wind advisory at Feb 21, 2011, 4:01 AM EST for Berkeley County, Dorchester County, South Carolina. It took effect at Feb 21, 2011, 11:00 AM EST. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- Feb 21, 2011, 4:01 AM EST (09:01 UTC)
- In effect from
- Feb 21, 2011, 11:00 AM EST
- Expired
- Feb 21, 2011, 3:53 PM EST
- In force
- 5 hr
- Issued by
- NWS Charleston, SC
Counties Berkeley County, SC, Dorchester County, SC
The radar
The Charleston,SC radar (KCLX), 97 km from the middle of the area, began a volume at 09:04 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 00:00Z, 9.0 hours before the alert went out and 31 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1512 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 304 m²/s²
- 0-3 km storm-relative helicity
- 460 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
351 WWUS72 KCHS 210901 NPWCHS URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE CHARLESTON SC 401 AM EST MON FEB 21 2011 SCZ045-211700- /O.CAN.KCHS.LW.Y.0009.110221T1400Z-110222T0500Z/ /O.NEW.KCHS.WI.Y.0002.110221T1600Z-110221T2300Z/ INLAND BERKELEY- INCLUDING THE CITY OF...MONCKS CORNER 401 AM EST MON FEB 21 2011 ...WIND ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 6 PM EST THIS EVENING... ...LAKE WIND ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO 6 PM EST THIS EVENING. THE LAKE WIND ADVISORY HAS BEEN CANCELLED. * TIMING: STRONG AND GUSTY SOUTHWEST WINDS WILL DEVELOP PRIOR TO MIDDAY AND PEAK DURING THE MID TO LATE AFTERNOON HOURS. WINDS SHOULD BEGIN TO SUBSIDE SOMEWHAT AS SUNSET NEARS TODAY. * WINDS: SOUTHWEST WINDS WILL INCREASE TO 20 TO 30 MPH WITH GUSTS FROM 35 TO 40 MPH. WIND GUSTS OVER 40 MPH MAY OCCUR ON SOME ELEVATED SURFACES. * IMPACTS: DRIVING ON BRIDGES AND ELEVATED SURFACES MAY BECOME DIFFICULT THIS AFTERNOON. SMALL OBJECTS NOT SECURED MAY BE TOSSED AROUND BY THE GUSTY WINDS. THE COMBINATION OF INCREASING WINDS AND WAVES WILL MAKE CONDITIONS DIFFICULT FOR SMALL CRAFT ON LAKE MOULTRIE THIS MORNING AND AGAIN TONIGHT. HAZARDOUS CONDITIONS ARE LIKELY ALONG LAKE SHORES THIS AFTERNOON WHEN THE HIGHEST WIND GUSTS WILL OCCUR. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 30 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION...ESPECIALLY ON BRIDGES AND OVERPASSES. MARINERS MAY ENCOUNTER DANGEROUS CONDITIONS ALONG SHORES OF LAKE MOULTRIE THIS AFTERNOON. && $$ SCZ044-050-052-211700- /O.NEW.KCHS.WI.Y.0002.110221T1600Z-110221T2300Z/ DORCHESTER-CHARLESTON-TIDAL BERKELEY- INCLUDING THE CITIES OF...ST. GEORGE...SUMMERVILLE...CHARLESTON... DANIEL ISLAND...NAVAL WEAPONS STATION CHARLESTON 401 AM EST MON FEB 21 2011 ...WIND ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 6 PM EST THIS EVENING... THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO 6 PM EST THIS EVENING. * TIMING: STRONG AND GUSTY SOUTHWEST WINDS WILL DEVELOP PRIOR TO MIDDAY AND PEAK DURING THE MID TO LATE AFTERNOON HOURS. WINDS SHOULD BEGIN TO SUBSIDE SOMEWHAT AS SUNSET NEARS TODAY. * WINDS: SOUTHWEST WINDS WILL INCREASE TO 20 TO 30 MPH WITH GUSTS FROM 30 TO 40 MPH THIS AFTERNOON. WIND GUSTS OVER 40 MPH MAY OCCUR ON ELEVATED SURFACES INCLUDING BRIDGES AND OVERPASSES. * IMPACTS: DRIVING ON ELEVATED BRIDGES MAY BECOME DIFFICULT THIS AFTERNOON. SMALL OBJECTS NOT SECURED MAY BE TOSSED AROUND BY THE GUSTY WINDS THIS AFTERNOON. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 30 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION...ESPECIALLY ON BRIDGES AND OVERPASSES. && $$
3 follow-up statements
950 WWUS72 KCHS 211200 NPWCHS URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE CHARLESTON SC 700 AM EST MON FEB 21 2011 SCZ044-045-050-052-212000- /O.CON.KCHS.WI.Y.0002.110221T1600Z-110221T2300Z/ DORCHESTER-INLAND BERKELEY-CHARLESTON-TIDAL BERKELEY- INCLUDING THE CITIES OF...ST. GEORGE...SUMMERVILLE... MONCKS CORNER...CHARLESTON...DANIEL ISLAND... NAVAL WEAPONS STATION CHARLESTON 700 AM EST MON FEB 21 2011 ...WIND ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 6 PM EST THIS EVENING... A WIND ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 6 PM EST THIS EVENING. * TIMING: STRONG AND GUSTY SOUTHWEST WINDS WILL DEVELOP PRIOR TO MIDDAY AND PEAK DURING THE MID TO LATE AFTERNOON HOURS. WINDS SHOULD BEGIN TO SUBSIDE SOMEWHAT AS SUNSET NEARS TODAY. * WINDS: SOUTHWEST WINDS WILL INCREASE TO 20 TO 30 MPH WITH GUSTS FROM 30 TO 40 MPH THIS AFTERNOON. WIND GUSTS OVER 40 MPH MAY OCCUR ON ELEVATED SURFACES INCLUDING BRIDGES AND OVERPASSES. * IMPACTS: DRIVING ON ELEVATED BRIDGES MAY BECOME DIFFICULT THIS AFTERNOON. SMALL OBJECTS NOT SECURED COULD BE TOSSED AROUND BY THE GUSTY WINDS THIS AFTERNOON. MARINERS MAY ENCOUNTER DANGEROUS CONDITIONS ALONG THE SHORES OF LAKE MOULTRIE THIS AFTERNOON AS STRONG WIND GUSTS IMPACT THE SANTEE COOPER LAKE REGION. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 30 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION...ESPECIALLY ON BRIDGES AND OVERPASSES. && $$
367 WWUS72 KCHS 211538 NPWCHS URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE CHARLESTON SC 1038 AM EST MON FEB 21 2011 SCZ044-045-050-052-212300- /O.CON.KCHS.WI.Y.0002.110221T1600Z-110221T2300Z/ DORCHESTER-INLAND BERKELEY-CHARLESTON-TIDAL BERKELEY- INCLUDING THE CITIES OF...ST. GEORGE...SUMMERVILLE... MONCKS CORNER...CHARLESTON...DANIEL ISLAND... NAVAL WEAPONS STATION CHARLESTON 1038 AM EST MON FEB 21 2011 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST THIS EVENING... A WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST THIS EVENING. * TIMING: STRONG AND GUSTY SOUTHWEST WINDS WILL PEAK DURING THE MID TO LATE AFTERNOON HOURS. WINDS SHOULD BEGIN TO SUBSIDE TOWARD SUNSET. * WINDS: SOUTHWEST WINDS OF 20 TO 30 MPH WITH GUSTS OF 35 TO 40 MPH WILL OCCUR THROUGH MUCH OF THIS AFTERNOON. WIND GUSTS OVER 40 MPH ARE POSSIBLE ON ELEVATED SURFACES INCLUDING BRIDGES AND OVERPASSES. * IMPACTS: DRIVING ON BRIDGES MAY BECOME DIFFICULT THIS AFTERNOON. SMALL OBJECTS NOT SECURED COULD BE TOSSED AROUND BY THE GUSTY WINDS THIS AFTERNOON. MARINERS MAY ENCOUNTER DANGEROUS CONDITIONS ALONG THE SHORES OF LAKE MOULTRIE THIS AFTERNOON AS STRONG WIND GUSTS IMPACT THE SANTEE COOPER LAKE REGION. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 30 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION...ESPECIALLY ON BRIDGES AND OVERPASSES. && $$ JAQ
025 WWUS72 KCHS 212053 NPWCHS URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE CHARLESTON SC 353 PM EST MON FEB 21 2011 SCZ045-220500- /O.CAN.KCHS.WI.Y.0002.000000T0000Z-110221T2300Z/ /O.NEW.KCHS.LW.Y.0010.110221T2053Z-110222T1100Z/ INLAND BERKELEY- INCLUDING THE CITY OF...MONCKS CORNER 353 PM EST MON FEB 21 2011 ...LAKE WIND ADVISORY IN EFFECT FOR LAKE MOULTRIE UNTIL 6 AM EST TUESDAY... ...WIND ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A LAKE WIND ADVISORY FOR LAKE MOULTRIE...WHICH IS IN EFFECT UNTIL 6 AM EST TUESDAY. THE WIND ADVISORY HAS BEEN CANCELLED FOR THE REMAINDER OF INLAND BERKELEY COUNTY. * TIMING: STRONG AND GUSTY SOUTHWEST WINDS WILL SUBSIDE THIS EVENING ALONG THE LAKE SHORE...BEFORE RESTRENGTHENING OVER THE LAKE AFTER MIDNIGHT. * WINDS: SOUTHWEST WINDS OF 15 TO 20 KNOTS WITH GUSTS TO 25 KNOTS. * WAVES: 1 TO 2 FEET...HIGHEST NEAR THE CENTER AND NORTHEAST PORTION OF THE LAKE. * IMPACTS: MARINERS MAY ENCOUNTER DANGEROUS CONDITIONS ON LAKE MOULTRIE TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... MARINERS SHOULD USE EXTRA CAUTION ON LAKE MOULTRIE THROUGH TONIGHT...ESPECIALLY ON THE OPEN LAKE WATERS. STRONG WINDS MAY LEAD TO LARGE WAVES WHICH CAN CAPSIZE BOATS. && $$ SCZ044-050-052-212200- /O.CAN.KCHS.WI.Y.0002.000000T0000Z-110221T2300Z/ DORCHESTER-CHARLESTON-TIDAL BERKELEY- INCLUDING THE CITIES OF...ST. GEORGE...SUMMERVILLE...CHARLESTON... DANIEL ISLAND...NAVAL WEAPONS STATION CHARLESTON 353 PM EST MON FEB 21 2011 ...WIND ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS CANCELLED THE WIND ADVISORY. $$ JAQ
The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 21, 4:43 AM EST | Red Flag Warning | CHS | Allendale, Berkeley, Colleton, Dorchester, Hampton | 14 hr |
| Feb 21, 3:53 PM EST | Lake Wind Advisory | CHS | Berkeley | 12 hr |
Nearby
Wind Advisories in South Carolina, 2011Every 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.