Alert archive / South Carolina / Lake Wind Advisories in 2011
Lake Wind Advisory 33, NWS Columbia, SC
NWS Columbia, SC issued this lake wind advisory at Nov 23, 2011, 12:51 AM EST for 5 counties in Georgia; 16 counties in South Carolina. It was in force for 17 hr.
The area
The counties it named.
The facts
- Issued
- Nov 23, 2011, 12:51 AM EST (05:51 UTC)
- Expired
- Nov 23, 2011, 6:00 PM EST
- In force
- 17 hr
- Issued by
- NWS Columbia, SC
All 21 counties
Burke County, GA, Columbia County, GA, Lincoln County, GA, McDuffie County, GA, Richmond County, GA, Aiken County, SC, Bamberg County, SC, Barnwell County, SC, Calhoun County, SC, Chesterfield County, SC, Clarendon County, SC, Edgefield County, SC, Fairfield County, SC, Kershaw County, SC, Lee County, SC, Lexington County, SC, McCormick County, SC, Newberry County, SC, Richland County, SC, Saluda County, SC, Sumter County, SC
The radar
The Columbia radar (KCAE), 28 km from the middle of the area, began a volume at 05:53 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, 5.9 hours before the alert went out and 162 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
- 104 J/kg
- Mixed-layer CIN
- -40 J/kg
- Mixed-layer LCL
- 731 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 133 m²/s²
- 0-3 km storm-relative helicity
- 113 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
033 WWUS72 KCAE 230551 NPWCAE URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE COLUMBIA SC 1251 AM EST WED NOV 23 2011 GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041- 231600- /O.NEW.KCAE.LW.Y.0033.111123T0551Z-111123T2300Z/ LINCOLN-MCDUFFIE-COLUMBIA-RICHMOND-BURKE-LANCASTER-CHESTERFIELD- MCCORMICK-NEWBERRY-FAIRFIELD-KERSHAW-EDGEFIELD-SALUDA-LEXINGTON- RICHLAND-LEE-AIKEN-SUMTER-BARNWELL-ORANGEBURG-CALHOUN-CLARENDON- BAMBERG- INCLUDING THE CITIES OF...LINCOLNTON...THOMSON...MARTINEZ... EVANS...HEPHZIBAH...WAYNESBORO...LANCASTER...ELGIN...CHERAW... PAGELAND...MCCORMICK...NEWBERRY...WINNSBORO...CAMDEN...LUGOFF... EDGEFIELD...JOHNSTON...SALUDA...RIDGE SPRING...WEST COLUMBIA... CAYCE...LEXINGTON...RED BANK...COLUMBIA...BISHOPVILLE...AIKEN... NORTH AUGUSTA...SUMTER...BARNWELL...WILLISTON...BLACKVILLE... ORANGEBURG...ST. MATTHEWS...MANNING...SUMMERTON...BAMBERG... DENMARK 1251 AM EST WED NOV 23 2011 ...LAKE WIND ADVISORY IN EFFECT UNTIL 6 PM EST THIS EVENING... THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A LAKE WIND ADVISORY...WHICH IS IN EFFECT UNTIL 6 PM EST THIS EVENING. * LOCATIONS...THE MIDLANDS OF SOUTH CAROLINA AND CENTRAL SAVANNAH AREA OF GEORGIA. * HAZARDS...STRONG WINDS ON AREA LAKES. * TIMING...THROUGH 6 PM THIS EVENING. * WINDS...SOUTHWEST WINDS 15 TO 20 KNOTS...BECOMING WEST 15 TO 25 KNOTS BY MIDDAY. * IMPACTS...STRONG WINDS MAY CAPSIZE SMALL BOATS ON AREA LAKES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A LAKE WIND ADVISORY INDICATES THAT WINDS WILL CAUSE ROUGH CHOP ON AREA LAKES. SMALL BOATS AND PERSONAL WATERCRAFT WILL BE ESPECIALLY PRONE TO CAPSIZING. && $$
2 follow-up statements
650 WWUS72 KCAE 230843 NPWCAE URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE COLUMBIA SC 343 AM EST WED NOV 23 2011 GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041- 231800- /O.CON.KCAE.LW.Y.0033.000000T0000Z-111123T2300Z/ LINCOLN-MCDUFFIE-COLUMBIA-RICHMOND-BURKE-LANCASTER-CHESTERFIELD- MCCORMICK-NEWBERRY-FAIRFIELD-KERSHAW-EDGEFIELD-SALUDA-LEXINGTON- RICHLAND-LEE-AIKEN-SUMTER-BARNWELL-ORANGEBURG-CALHOUN-CLARENDON- BAMBERG- INCLUDING THE CITIES OF...LINCOLNTON...THOMSON...MARTINEZ... EVANS...HEPHZIBAH...WAYNESBORO...LANCASTER...ELGIN...CHERAW... PAGELAND...MCCORMICK...NEWBERRY...WINNSBORO...CAMDEN...LUGOFF... EDGEFIELD...JOHNSTON...SALUDA...RIDGE SPRING...WEST COLUMBIA... CAYCE...LEXINGTON...RED BANK...COLUMBIA...BISHOPVILLE...AIKEN... NORTH AUGUSTA...SUMTER...BARNWELL...WILLISTON...BLACKVILLE... ORANGEBURG...ST. MATTHEWS...MANNING...SUMMERTON...BAMBERG... DENMARK 343 AM EST WED NOV 23 2011 ...LAKE WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST THIS EVENING... A LAKE WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST THIS EVENING. * LOCATIONS...THE MIDLANDS OF SOUTH CAROLINA AND CENTRAL SAVANNAH AREA OF GEORGIA. * HAZARDS...STRONG WINDS ON AREA LAKES. * TIMING...THROUGH 6 PM THIS EVENING. * WINDS...WEST 15 TO 20 KNOTS WITH GUSTS UP TO 25 KNOTS. * IMPACTS...STRONG WINDS MAY CAPSIZE SMALL BOATS ON AREA LAKES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A LAKE WIND ADVISORY INDICATES THAT WINDS WILL CAUSE ROUGH CHOP ON AREA LAKES. SMALL BOATS AND PERSONAL WATERCRAFT WILL BE ESPECIALLY PRONE TO CAPSIZING. && $$
300 WWUS72 KCAE 231503 NPWCAE URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE COLUMBIA SC 1003 AM EST WED NOV 23 2011 GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041- 232300- /O.CON.KCAE.LW.Y.0033.000000T0000Z-111123T2300Z/ LINCOLN-MCDUFFIE-COLUMBIA-RICHMOND-BURKE-LANCASTER-CHESTERFIELD- MCCORMICK-NEWBERRY-FAIRFIELD-KERSHAW-EDGEFIELD-SALUDA-LEXINGTON- RICHLAND-LEE-AIKEN-SUMTER-BARNWELL-ORANGEBURG-CALHOUN-CLARENDON- BAMBERG- INCLUDING THE CITIES OF...LINCOLNTON...THOMSON...MARTINEZ... EVANS...HEPHZIBAH...WAYNESBORO...LANCASTER...ELGIN...CHERAW... PAGELAND...MCCORMICK...NEWBERRY...WINNSBORO...CAMDEN...LUGOFF... EDGEFIELD...JOHNSTON...SALUDA...RIDGE SPRING...WEST COLUMBIA... CAYCE...LEXINGTON...RED BANK...COLUMBIA...BISHOPVILLE...AIKEN... NORTH AUGUSTA...SUMTER...BARNWELL...WILLISTON...BLACKVILLE... ORANGEBURG...ST. MATTHEWS...MANNING...SUMMERTON...BAMBERG... DENMARK 1003 AM EST WED NOV 23 2011 ...LAKE WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST THIS EVENING... A LAKE WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST THIS EVENING. * LOCATIONS...THE MIDLANDS OF SOUTH CAROLINA AND CENTRAL SAVANNAH AREA OF GEORGIA. * HAZARDS...STRONG WINDS CONTINUING ON AREA LAKES. * TIMING...THROUGH 6 PM THIS EVENING. * WINDS...NORTHWEST 10 TO 15 KNOTS WITH GUSTS UP TO 25 KNOTS. * IMPACTS...STRONG WINDS MAY CAPSIZE SMALL BOATS ON AREA LAKES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A LAKE WIND ADVISORY INDICATES THAT WINDS WILL CAUSE ROUGH CHOP ON AREA LAKES. SMALL BOATS AND PERSONAL WATERCRAFT WILL BE ESPECIALLY PRONE TO CAPSIZING. && $$
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 Columbia, SC wrote its last area forecast discussion before this lake wind advisory went out at Nov 22, 10:09 PM EST, 2 hours 42 minutes earlier.
Area forecast discussion, Nov 22, 10:09 PM EST, 2 hours 42 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE COLUMBIA SC 1009 PM EST TUE NOV 22 2011 .SYNOPSIS... A COLD FRONT WILL MOVE TOWARD THE AREA OVERNIGHT WITH SHOWERS AND THUNDERSTORMS SPREADING ACROSS THE REGION. SOME THUNDERSTORMS MAY PRODUCE STRONG WINDS. THE FRONT WILL MOVE THROUGH BY LATE MORNING ON WEDNESDAY AND THE SHOWERS AND STORMS WILL COME TO AN END. HIGH PRESSURE WILL BUILD IN WEDNESDAY AFTERNOON THROUGH SATURDAY BEFORE ANOTHER WEATHER SYSTEM APPROACHES BY SUNDAY. && .NEAR TERM /UNTIL 6 AM WEDNESDAY MORNING/... UPDATE 03Z...CONVECTION MOVING INTO UPSTATE SOUTH CAROLINA AND CSRA. EXCEPT FOR ONE STORM EAST OF ATHENS...SATELLITE AND RADAR SUGGEST CONVECTIVE LINE WEAKENING. MODELS SHOW INCREASING INSTABILITY OVERNIGHT BUT SHORT WAVE LIFTING NORTH OF REGION. A COLD FRONT WILL APPROACH THE REGION FROM THE WEST. THIS WILL SPREAD SHOWERS AND THUNDERSTORMS DURING THE OVERNIGHT HOURS. SOME OF THESE STORMS MAY APPROACH SEVERE LIMITS. SPC HAS A SLIGHT RISK AREA MOVING IN FROM THE WEST AND COVERS THE WESTERN PART OF THE MIDLANDS AND THE CSRA. A SEVERE WEATHER WATCH IS POSSIBLE LATE TONIGHT. THE WORST CONDITIONS APPEAR TO BE BETWEEN MIDNIGHT AND 6 AM WITH THE CURRENT TIMING TAKEN INTO ACCOUNT. TONIGHT SHOULD BE A WARM NIGHT WITH LOWS IN THE LOWER 60S AND THIS MAY HELP TO FUEL STRONG STORMS. && .SHORT TERM /6 AM WEDNESDAY MORNING THROUGH THURSDAY NIGHT/... THE PROGRESSIVE WEATHER PATTERN CONTINUES. COLD FRONT SHOULD MOVE THROUGH QUICKLY WEDNESDAY MORNING AND IS EXPECTED TO CLEAR EVEN THE EASTERN COUNTIES AROUND NOON OR IN THE EARLY AFTERNOON. WEST WINDS BECOME NORTHWEST AND A BIT GUSTY BUT DECIDED TO HOLD OFF ON ANY LAKE WIND ADVISORIES AFTER COORDINATING WITH NEIGHBORING OFFICES. EVENT APPEARS TO BE MARGINAL AT THIS TIME. COOLER AIR BEHIND THE FRONT SHOULD HOLD AFTERNOON HIGHS INTO THE LOWER 70S FOR WEDNESDAY. COLDER AIR WEDNESDAY NIGHT WITH LOWS IN THE LOWER 40S. DRY COOL HIGH PRESSURE FOR THANKSGIVING DAY WITH HIGHS LOWER AND MIDDLE 60S. A CHILLY NIGHT FOR THURSDAY NIGHT WITH LOWS MOSTLY IN THE MIDDLE 30S. && .LONG TERM /FRIDAY THROUGH TUESDAY/... MODELS IN GOOD AGREEMENT. HIGH PRESSURE FRIDAY MOVES EAST SATURDAY AS ANOTHER WEATHER SYSTEM AND COLD FRONT APPROACH SUNDAY. WILL INTRODUCE A CHANCE OF SHOWERS SUNDAY. SYSTEM BEGINS TO MOVE AWAY BY MONDAY BUT WILL HOLD ONTO A SLIGHT CHANCE OF SHOWERS. SYSTEM GONE BY TUESDAY WITH DRY HIGH PRESSURE AGAIN. TEMPERATURES ARE EXPECTED TO BE BELOW NORMAL. HIGHS IN THE 60S FRIDAY AND SATURDAY AND IN THE 50S MONDAY AND NEAR 60 TUESDAY. LOWS IN THE 30S AND 40S EXCEPT IN THE LOWER 50S AHEAD OF THE NEXT COLD FRONT SATURDAY NIGHT. && .AVIATION /03Z WEDNESDAY THROUGH SUNDAY/... COLD FRONT AND ASSOCIATED SHOWERS AND ISOLATED EMBEDDED THUNDERSTORMS CONTINUES TO MOVE TOWARD THE REGION THIS EVENING. PRECIPITATION ASSOCIATED WITH THE FRONT IS JUST BEGINNING TO MOVE INTO THE WESTERN PORTION OF THE CWA AND WILL CONTINUE TO MOVE ACROSS THE REGION OVERNIGHT AND EXIT THE CWA WEDNESDAY MORNING. VFR CONDITIONS STILL CONTINUE ACROSS THE AREA...BUT WINDS HAVE PICKED UP FROM THE SOUTH AROUND 10 KTS WITH GUSTS AROUND 18 KTS AS THE PRESSURE GRADIENT HAS TIGHTENED. CONDITIONS WILL BEGIN DETERIORATING AS THE FRONT APPROACHES...WITH MVFR CIGS AND VSBYS ARRIVING AT ALL TAF SITES BETWEEN 23/07Z AND 23/08Z IN THE FORM OF SHOWERS AND ISOLATED THUNDERSTORMS. EXPECT MVFR...POSSIBLE IFR...CONDITIONS TO REMAIN UNTIL ABOUT 13Z WEDNESDAY...BECOMING VFR AS THE FRONT MOVES EAST OF THE AREA. BEHIND THE FRONT WINDS WILL BECOME WEST NORTHWEST/NORTHWEST AND INCREASE TO 10 TO 15 KTS WITH GUSTS BETWEEN 20 AND 25 KTS. EXTENDED AVIATION OUTLOOK...NO VSBY/CIG RESTRICTIONS EXPECTED THROUGH FRIDAY AS HIGH PRESSURE BUILDS IN FROM THE WEST. && .CAE WATCHES/WARNINGS/ADVISORIES... SC...NONE. GA...NONE. && SYNOPSIS... NEAR TERM... SHORT TERM... LONG TERM... AVIATION...07
Hazardous weather outlook, Nov 22, 9:24 AM EST, 15 hours 27 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE COLUMBIA SC 924 AM EST TUE NOV 22 2011 GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041-231430- LINCOLN-MCDUFFIE-COLUMBIA-RICHMOND-BURKE-LANCASTER-CHESTERFIELD- MCCORMICK-NEWBERRY-FAIRFIELD-KERSHAW-EDGEFIELD-SALUDA-LEXINGTON- RICHLAND-LEE-AIKEN-SUMTER-BARNWELL-ORANGEBURG-CALHOUN-CLARENDON- BAMBERG- 924 AM EST TUE NOV 22 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL GEORGIA AND CENTRAL SOUTH CAROLINA. .DAY ONE...TODAY AND TONIGHT. A LINE OF SHOWERS AND THUNDERSTORMS IS EXPECTED TO CROSS THE REGION LATE TONIGHT AHEAD OF AN APPROACHING COLD FRONT. SOME OF THESE STORMS MAY BECOME SEVERE...PRODUCING DAMAGING WINDS AND LARGE HAIL. AN ISOLATED TORNADO THREAT WILL ALSO EXIST. .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.
The office that day
Everything else NWS Columbia, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 23, 1:06 AM EST | Severe Thunderstorm Warning | CAE | Chesterfield, Lancaster | 39 min |
Nearby
Lake Wind Advisories in South Carolina, 2011Lake Wind Advisories in Georgia, 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.