Alert archive / North Carolina / Wind Advisories in 2009
Wind Advisory 16, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this wind advisory at Dec 1, 2009, 3:02 PM EST for 17 counties in North Carolina; Habersham County, Rabun County, Georgia. It took effect at Dec 2, 2009, 6:00 AM EST. It was in force for 29 hr.
The area
The counties it named.
The facts
- Issued
- Dec 1, 2009, 3:02 PM EST (20:02 UTC)
- In effect from
- Dec 2, 2009, 6:00 AM EST
- Expired
- Dec 3, 2009, 10:43 AM EST
- In force
- 29 hr
- Issued by
- NWS Greenville-Spartanburg, SC
Counties Habersham County, GA, Rabun County, GA, Avery County, NC, Buncombe County, NC, Burke County, NC, Caldwell County, NC, Graham County, NC, Haywood County, NC, Henderson County, NC, Jackson County, NC, Macon County, NC, Madison County, NC, McDowell County, NC, Mitchell County, NC, Polk County, NC, Rutherford County, NC, Swain County, NC, Transylvania County, NC, Yancey County, NC
The radar
The Greer radar (KGSP), 78 km from the middle of the area, began a volume at 20:02 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, 8.0 hours before the alert went out and 255 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
- 1975 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- -101 m²/s²
- 0-3 km storm-relative helicity
- 38 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS72 KGSP 012002 NPWGSP URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 302 PM EST TUE DEC 1 2009 ...GUSTY MOUNTAIN WINDS EXPECTED... .A STRONG LOW PRESSURE SYSTEM FORMING OVER THE GULF OF MEXICO WILL MOVE NORTH INTO ALABAMA TONIGHT. THE LOW WILL THEN MOVE ACROSS TENNESSEE TO THE OHIO VALLEY DURING THE DAY WEDNESDAY. STRONG LOW LEVEL WINDS WILL MOVE INTO THE MOUNTAINS AS THIS LOW MOVES TO THE WEST OF THE AREA. THIS WILL LEAD WINDY CONDITIONS ACROSS THE MOUNTAINS OF THE WESTERN CAROLINAS AND NORTHEAST GEORGIA...WITH STRONG GUSTS POSSIBLE ALONG THE RIDGES. GAZ010-017-NCZ033-048>053-058-059-062>065-501-503-505-507-509- SCZ001>003-020900- /O.NEW.KGSP.WI.Y.0016.091202T1100Z-091203T0500Z/ RABUN-HABERSHAM-AVERY-MADISON-YANCEY-MITCHELL-SWAIN-HAYWOOD- BUNCOMBE-GRAHAM-NORTHERN JACKSON-MACON-SOUTHERN JACKSON- TRANSYLVANIA-HENDERSON-CALDWELL MOUNTAINS-BURKE MOUNTAINS- MCDOWELL MOUNTAINS-RUTHERFORD MOUNTAINS-POLK MOUNTAINS- OCONEE MOUNTAINS-PICKENS MOUNTAINS-GREENVILLE MOUNTAINS- INCLUDING THE CITIES OF...CLAYTON...CLARKESVILLE...NEWLAND... SPRUCE PINE...CHEROKEE...WAYNESVILLE...ASHEVILLE...SYLVA... FRANKLIN...BREVARD...HENDERSONVILLE...LAKE LURE 302 PM EST TUE DEC 1 2009 ...WIND ADVISORY IN EFFECT FROM 6 AM WEDNESDAY TO MIDNIGHT EST WEDNESDAY NIGHT... THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT FROM 6 AM WEDNESDAY TO MIDNIGHT EST WEDNESDAY NIGHT. SUSTAINED WINDS OF 25 TO 35 MPH WILL DEVELOP ACROSS THE HIGHER ELEVATIONS OF THE MOUNTAINS OF THE WESTERN CAROLINAS AND NORTHEAST GEORGIA WEDNESDAY. GUSTS IN EXCESS OF 50 MPH ARE POSSIBLE AS WELL. WHILE WINDS AND GUSTS OF THESE SPEEDS WILL BE MAINLY LIMITED TO RIDGE TOP LOCATIONS...SOME OF THESE WINDS COULD BE SEEN IN THE VALLEYS...ESPECIALLY VALLEYS WITH A SOUTHERN EXPOSURE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$
6 follow-up statements
000 WWUS72 KGSP 020851 NPWGSP URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 351 AM EST WED DEC 2 2009 ...GUSTY MOUNTAIN WINDS EXPECTED... .A STRONG LOW PRESSURE SYSTEM WILL MOVE NORTH ACROSS TENNESSEE TO THE OHIO VALLEY TODAY. STRONG LOW LEVEL WINDS WILL MOVE INTO THE MOUNTAINS AS THIS LOW MOVES TO THE WEST OF THE AREA. THIS WILL LEAD WINDY CONDITIONS ACROSS THE MOUNTAINS OF THE WESTERN CAROLINAS AND NORTHEAST GEORGIA...WITH STRONG GUSTS POSSIBLE ALONG THE RIDGES. GAZ010-017-NCZ033-048>053-058-059-062>065-501-503-505-507-509- SCZ001>003-021700- /O.CON.KGSP.WI.Y.0016.091202T1100Z-091203T0500Z/ RABUN-HABERSHAM-AVERY-MADISON-YANCEY-MITCHELL-SWAIN-HAYWOOD- BUNCOMBE-GRAHAM-NORTHERN JACKSON-MACON-SOUTHERN JACKSON- TRANSYLVANIA-HENDERSON-CALDWELL MOUNTAINS-BURKE MOUNTAINS- MCDOWELL MOUNTAINS-RUTHERFORD MOUNTAINS-POLK MOUNTAINS- OCONEE MOUNTAINS-PICKENS MOUNTAINS-GREENVILLE MOUNTAINS- INCLUDING THE CITIES OF...CLAYTON...CLARKESVILLE...NEWLAND... SPRUCE PINE...CHEROKEE...WAYNESVILLE...ASHEVILLE...SYLVA... FRANKLIN...BREVARD...HENDERSONVILLE...LAKE LURE 351 AM EST WED DEC 2 2009 ...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT... A WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT. SUSTAINED WINDS OF 25 TO 35 MPH WILL DEVELOP ACROSS THE HIGHER ELEVATIONS OF THE MOUNTAINS OF THE WESTERN CAROLINAS AND NORTHEAST GEORGIA TODAY. GUSTS IN EXCESS OF 50 MPH ARE POSSIBLE AS WELL. WHILE WINDS AND GUSTS OF THESE SPEEDS WILL BE MAINLY LIMITED TO RIDGE TOP LOCATIONS...SOME OF THESE WINDS COULD BE SEEN IN THE VALLEYS...ESPECIALLY VALLEYS WITH A SOUTHERN EXPOSURE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$
000 WWUS72 KGSP 021543 NPWGSP URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 1043 AM EST WED DEC 2 2009 ...GUSTY MOUNTAIN WINDS EXPECTED... .A STRONG LOW PRESSURE SYSTEM WILL MOVE NORTH ACROSS TENNESSEE TO THE OHIO VALLEY THIS AFTERNOON. STRONG LOW LEVEL WINDS WILL MOVE INTO THE MOUNTAINS AS THIS LOW MOVES TO THE WEST OF THE AREA. THIS WILL LEAD TO WINDY CONDITIONS ACROSS THE MOUNTAINS OF THE WESTERN CAROLINAS AND NORTHEAST GEORGIA...WITH STRONG GUSTS POSSIBLE ALONG THE RIDGES. GAZ010-017-NCZ033-048>053-058-059-062>065-501-503-505-507-509- SCZ001>003-022345- /O.CON.KGSP.WI.Y.0016.000000T0000Z-091203T0500Z/ RABUN-HABERSHAM-AVERY-MADISON-YANCEY-MITCHELL-SWAIN-HAYWOOD- BUNCOMBE-GRAHAM-NORTHERN JACKSON-MACON-SOUTHERN JACKSON- TRANSYLVANIA-HENDERSON-CALDWELL MOUNTAINS-BURKE MOUNTAINS- MCDOWELL MOUNTAINS-RUTHERFORD MOUNTAINS-POLK MOUNTAINS- OCONEE MOUNTAINS-PICKENS MOUNTAINS-GREENVILLE MOUNTAINS- INCLUDING THE CITIES OF...CLAYTON...CLARKESVILLE...NEWLAND... SPRUCE PINE...CHEROKEE...WAYNESVILLE...ASHEVILLE...SYLVA... FRANKLIN...BREVARD...HENDERSONVILLE...LAKE LURE 1043 AM EST WED DEC 2 2009 ...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT... A WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT. SUSTAINED WINDS OF 25 TO 35 MPH WILL DEVELOP ACROSS THE HIGHER ELEVATIONS OF THE MOUNTAINS OF THE WESTERN CAROLINAS AND NORTHEAST GEORGIA THIS AFTERNOON. GUSTS IN EXCESS OF 50 MPH ARE POSSIBLE AS WELL. WHILE WINDS AND GUSTS OF THESE SPEEDS WILL BE MAINLY LIMITED TO RIDGE TOP LOCATIONS...SOME OF THESE WINDS COULD BE SEEN IN THE VALLEYS...ESPECIALLY VALLEYS WITH A SOUTHERN EXPOSURE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$
000 WWUS72 KGSP 021940 NPWGSP URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 240 PM EST WED DEC 2 2009 ...GUSTY MOUNTAIN WINDS TONIGHT... .A STRONG LOW PRESSURE SYSTEM WILL MOVE NORTH ACROSS TENNESSEE TO THE OHIO VALLEY TONIGHT. STRONG LOW LEVEL WINDS WILL CONTINUE ACROSS THE MOUNTAINS AS THIS LOW MOVES TO THE WEST OF THE AREA. THIS WILL LEAD TO WINDY CONDITIONS ACROSS THE MOUNTAINS OF THE WESTERN CAROLINAS AND NORTHEAST GEORGIA...WITH STRONG GUSTS POSSIBLE ALONG THE RIDGES. NCZ033-048>053-058-059-062>065-501-503-505-507-509-030500- /O.EXT.KGSP.WI.Y.0016.000000T0000Z-091203T1100Z/ AVERY-MADISON-YANCEY-MITCHELL-SWAIN-HAYWOOD-BUNCOMBE-GRAHAM- NORTHERN JACKSON-MACON-SOUTHERN JACKSON-TRANSYLVANIA-HENDERSON- CALDWELL MOUNTAINS-BURKE MOUNTAINS-MCDOWELL MOUNTAINS- RUTHERFORD MOUNTAINS-POLK MOUNTAINS- INCLUDING THE CITIES OF...NEWLAND...SPRUCE PINE...CHEROKEE... WAYNESVILLE...ASHEVILLE...SYLVA...FRANKLIN...BREVARD... HENDERSONVILLE...LAKE LURE 240 PM EST WED DEC 2 2009 ...WIND ADVISORY NOW IN EFFECT UNTIL 6 AM EST THURSDAY... THE WIND ADVISORY IS NOW IN EFFECT UNTIL 6 AM EST THURSDAY. SUSTAINED WINDS OF 25 TO 35 MPH WILL CONTINUE ACROSS THE HIGHER ELEVATIONS OF THE MOUNTAINS OF NORTH CAROLINA TONIGHT. GUSTS IN EXCESS OF 50 MPH ARE POSSIBLE AS WELL. WHILE WINDS AND GUSTS OF THESE SPEEDS WILL BE MAINLY LIMITED TO RIDGE TOP LOCATIONS...SOME OF THESE WINDS COULD BE SEEN IN THE VALLEYS...ESPECIALLY VALLEYS WITH A SOUTHERN OR WESTERN EXPOSURE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$ GAZ010-017-SCZ001>003-030500- /O.CON.KGSP.WI.Y.0016.000000T0000Z-091203T0500Z/ RABUN-HABERSHAM-OCONEE MOUNTAINS-PICKENS MOUNTAINS- GREENVILLE MOUNTAINS- INCLUDING THE CITIES OF...CLAYTON...CLARKESVILLE 240 PM EST WED DEC 2 2009 ...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT... A WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT. SUSTAINED WINDS OF 25 TO 35 MPH WILL CONTINUE ACROSS THE HIGHER ELEVATIONS OF THE MOUNTAINS OF SOUTH CAROLINA AND NORTHEAST GEORGIA THIS EVENING. GUSTS IN EXCESS OF 50 MPH ARE POSSIBLE AS WELL. WHILE WINDS AND GUSTS OF THESE SPEEDS WILL BE MAINLY LIMITED TO RIDGE TOP LOCATIONS...SOME OF THESE WINDS COULD BE SEEN IN THE VALLEYS...ESPECIALLY VALLEYS WITH A SOUTHERN EXPOSURE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$
000 WWUS72 KGSP 030242 NPWGSP URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 942 PM EST WED DEC 2 2009 ...GUSTY MOUNTAIN WINDS TONIGHT... .A STRONG LOW PRESSURE SYSTEM WILL MOVE NORTH ACROSS TENNESSEE TO THE OHIO VALLEY TONIGHT. STRONG LOW LEVEL WINDS WILL CONTINUE ACROSS THE MOUNTAINS AS THIS LOW MOVES TO THE WEST OF THE AREA. THIS WILL LEAD TO WINDY CONDITIONS ACROSS THE MOUNTAINS OF THE WESTERN CAROLINAS AND NORTHEAST GEORGIA...WITH STRONG GUSTS POSSIBLE ALONG THE RIDGES. NCZ033-048>053-058-059-062>065-501-503-505-507-509-031045- /O.CON.KGSP.WI.Y.0016.000000T0000Z-091203T1100Z/ AVERY-MADISON-YANCEY-MITCHELL-SWAIN-HAYWOOD-BUNCOMBE-GRAHAM- NORTHERN JACKSON-MACON-SOUTHERN JACKSON-TRANSYLVANIA-HENDERSON- CALDWELL MOUNTAINS-BURKE MOUNTAINS-MCDOWELL MOUNTAINS- RUTHERFORD MOUNTAINS-POLK MOUNTAINS- INCLUDING THE CITIES OF...NEWLAND...SPRUCE PINE...CHEROKEE... WAYNESVILLE...ASHEVILLE...SYLVA...FRANKLIN...BREVARD... HENDERSONVILLE...LAKE LURE 942 PM EST WED DEC 2 2009 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST THURSDAY... A WIND ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST THURSDAY. SUSTAINED WINDS OF 25 TO 35 MPH WILL CONTINUE ACROSS THE HIGHER ELEVATIONS OF THE MOUNTAINS OF NORTH CAROLINA TONIGHT. GUSTS IN EXCESS OF 50 MPH ARE POSSIBLE AS WELL. WHILE WINDS AND GUSTS OF THESE SPEEDS WILL BE MAINLY LIMITED TO RIDGE TOP LOCATIONS...SOME OF THESE WINDS COULD BE SEEN IN THE VALLEYS...ESPECIALLY VALLEYS WITH A SOUTHERN OR WESTERN EXPOSURE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$ GAZ010-017-SCZ001>003-030500- /O.CON.KGSP.WI.Y.0016.000000T0000Z-091203T0500Z/ RABUN-HABERSHAM-OCONEE MOUNTAINS-PICKENS MOUNTAINS- GREENVILLE MOUNTAINS- INCLUDING THE CITIES OF...CLAYTON...CLARKESVILLE 942 PM EST WED DEC 2 2009 ...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT... A WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT. SUSTAINED WINDS OF 25 TO 35 MPH WILL CONTINUE ACROSS THE HIGHER ELEVATIONS OF THE MOUNTAINS OF SOUTH CAROLINA AND NORTHEAST GEORGIA THIS EVENING. GUSTS IN EXCESS OF 50 MPH ARE POSSIBLE AS WELL. WHILE WINDS AND GUSTS OF THESE SPEEDS WILL BE MAINLY LIMITED TO RIDGE TOP LOCATIONS...SOME OF THESE WINDS COULD BE SEEN IN THE VALLEYS...ESPECIALLY VALLEYS WITH A SOUTHERN EXPOSURE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$
000 WWUS72 KGSP 030921 NPWGSP URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 421 AM EST THU DEC 3 2009 ...GUSTY WINDS WILL CONTINUE THIS MORNING OVER THE MOUNTAINS... NCZ033-048>050-053-501-503-505-031700- /O.EXT.KGSP.WI.Y.0016.000000T0000Z-091203T1700Z/ AVERY-MADISON-YANCEY-MITCHELL-BUNCOMBE-CALDWELL MOUNTAINS- BURKE MOUNTAINS-MCDOWELL MOUNTAINS- INCLUDING THE CITIES OF...NEWLAND...SPRUCE PINE...ASHEVILLE 421 AM EST THU DEC 3 2009 ...WIND ADVISORY NOW IN EFFECT UNTIL NOON EST TODAY... THE WIND ADVISORY IS NOW IN EFFECT UNTIL NOON EST TODAY. WIND GUSTS OF 40 TO 50 MPH ARE POSSIBLE THIS MORNING OVER THE HIGHER ELEVATIONS OF THE NORTH CAROLINA MOUNTAINS NORTH OF ASHEVILLE AND MARSHALL. WHILE WINDS AND GUSTS OF THESE SPEEDS WILL BE MAINLY LIMITED TO RIDGE TOP LOCATIONS...SOME OF THESE WINDS COULD BE SEEN IN THE VALLEYS...ESPECIALLY VALLEYS WITH A NORTHWESTERN EXPOSURE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 35 MPH OR GUSTS OF 50 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT... ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$ NCZ051-052-058-059-062>065-507-509-031100- /O.CON.KGSP.WI.Y.0016.000000T0000Z-091203T1100Z/ SWAIN-HAYWOOD-GRAHAM-NORTHERN JACKSON-MACON-SOUTHERN JACKSON- TRANSYLVANIA-HENDERSON-RUTHERFORD MOUNTAINS-POLK MOUNTAINS- INCLUDING THE CITIES OF...CHEROKEE...WAYNESVILLE...SYLVA... FRANKLIN...BREVARD...HENDERSONVILLE...LAKE LURE 421 AM EST THU DEC 3 2009 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST EARLY THIS MORNING... A WIND ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST EARLY THIS MORNING. WINDS WILL CONTINUE TO ABATE OVER PARTS OF THE CENTRAL AND SOUTHERN MOUNTAINS AND ADJACENT FOOTHILLS EARLY THIS MORNING. THEREFORE...THE WIND ADVISORY WILL BE ALLOWED TO EXPIRE AT 6 AM. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$ PM
000 WWUS72 KGSP 031543 NPWGSP URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 1043 AM EST THU DEC 3 2009 NCZ033-048>050-053-501-503-505-031645- /O.CAN.KGSP.WI.Y.0016.000000T0000Z-091203T1700Z/ AVERY-MADISON-YANCEY-MITCHELL-BUNCOMBE-CALDWELL MOUNTAINS- BURKE MOUNTAINS-MCDOWELL MOUNTAINS- INCLUDING THE CITIES OF...NEWLAND...SPRUCE PINE...ASHEVILLE 1043 AM EST THU DEC 3 2009 ...WIND ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS CANCELLED THE WIND ADVISORY. NORTHWEST WINDS HAVE DIMINISHED TO BETWEEN 10 AND 20 MPH...WITH A FEW GUSTS NEAR 30 MPH...LATE THIS MORNING. THE WIND ADVISORY HAS BEEN CANCELLED ACROSS MUCH OF THE NORTHERN AND CENTRAL MOUNTAINS OF NORTH CAROLINA. $$ HG
What forecasters said that day
The local office's own words before this wind advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Greenville-Spartanburg, SC wrote its last area forecast discussion before this wind advisory went out at Dec 1, 2:37 PM EST, 25 minutes earlier.
Area forecast discussion, Dec 1, 2:37 PM EST, 25 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
237 PM EST TUE DEC 1 2009
.SYNOPSIS...
HIGH PRESSURE WILL CONTINUE PUSHING OFFSHORE TODAY IN ADVANCE OF A
DEVELOPING LOW PRESSURE SYSTEM. THIS LOW WILL MOVE NORTHEAST ACROSS
THE SOUTHERN APPALACHIANS WEDNESDAY...SPREADING A CONSIDERABLE
AMOUNT OF MOISTURE OVER THE FORECAST AREA THROUGH THURSDAY. A
COOLER AREA OF HIGH PRESSURE WILL THEN BUILD ACROSS THE REGION
FRIDAY.
&&
.NEAR TERM /THROUGH WEDNESDAY/...
COMPLICATED FCST WITH SEVERAL DIFFERENT VARIABLES DURING THIS TIME
FRAME. MDLS ARE IN GOOD AGREEMENT THAT PRECIP WILL BEGIN AFTER
MIDNIGHT TONIGHT AS SFC LOW PRESSURE MOVES TOWARD THE AREA FROM THE
GULF OF MEXICO. THIS SYSTEM IS VERY DYNAMIC WITH UPPER DIVERGENCE
INCREASING AHEAD OF SHORT WAVES EJECTING TOWARD THE AREA IN THE SWLY
FLOW AHEAD OF AN APPROACHING UPPER LEVEL LOW. THE GFS REMAINS
FASTEST WITH ITS TIMING. HOWEVER...EVEN WITH THE SLOWER NAM...PRECIP
SHOULD BE ONGOING BY 12Z ACROSS MOST OF THE AREA ALONG AND WEST OF
I-26. ALTHOUGH COOL...LOWS WILL BE ABOVE NORMAL. THAT SAID...FCST
SOUNDINGS OVER THE MTNS SUGGEST THAT A LITTLE SLEET COULD MIX IN
WITH THE RAIN AS IT BEGINS IN THE VALLEYS AND PORTIONS OF THE COLUMN
WET BULB BELOW FREEZING. THIS IS A TYPICAL SCENARIO WITH PRECIP
ONSET DURING THE WINTER AND NO ACCUMULATIONS ARE EXPECTED.
MDLS BEGIN TO DIVERGE WED...ALTHOUGH THEY ARE IN GENERAL AGREEMENT.
STRONG SYNOPTIC SCALE FORCING CONTINUES AS SHORT WAVE ENERGY AND
UPPER DIVERGENCE MOVE OVER THE AREA. ISENTROPIC LIFT INCREASES AS
WELL AS SLY LOW LEVEL FLOW INCREASES. HOWEVER...THE GFS IS MUCH
FASTER THAN ANY OTHER MDL. THE SREF AND GEM REGIONAL ARE NOT AS SLOW
AS THE NAM...BUT SUPPORT A SLOWER SOLUTION. THERE WILL ALSO BE SOME
NON-CLASSICAL DAMMING ACROSS THE AREA AS WEAK RIDGING REMAINS
ENTRENCHED ALONG THE BLUE RIDGE. THE GFS KEEPS THE COASTAL WARM FRONT
WELL TO OUR EAST AND BRINGS THE SCOURING COLD FRONT THRU IN THE
AFTERNOON. THE NAM IS MUCH SLOWER WITH THE SCOURING COLD FRONT. AS A
RESULT...IT BRINGS THE COASTAL WARM FRONT TO AROUND THE I-85
CORRIDOR AND BRINGS A TRIPLE POINT LOW ALONG IT DURING THE
AFTERNOON. THE SREF AND GEM REGIONAL ARE CLOSER TO THE NAM TIMING
AND FRONTAL PLACEMENT. HOWEVER...THEY DO KEEP THE COASTAL WARM FRONT
SOUTH IF I-85. GIVEN THE GUIDANCE CONSENSUS HAVE TRENDED AWAY FROM
THE GFS SOLUTION.
THIS BRINGS A COUPLE OF HAZARDS INTO PLAY FOR WEDNESDAY. HEAVY RAIN
FROM THE BLUE RIDGE EAST IS LIKELY WED AND WED EVENING. GOING WITH
HPC QPF GUIDANCE...WE HAVE ANYWHERE FROM 2 TO 4 INCHES ACROSS THAT
AREA. 1 TO 2 ACROSS WEST OF THE BLUE RIDGE. THIS AMOUNT OF PRECIP IN
THAT SHORT OF A TIME WILL LIKELY PRODUCE FLASH FLOODING ACROSS THE
AREA. WILL ISSUE A FLASH FLOOD WATCH FOR WED AND WED EVENING. LOW
LEVEL WINDS WILL INCREASE DRAMATICALLY WED...WITH H85 WINDS
INCREASING TO AROUND 60 KTS. WITH THE WEAK DAMMING IN PLACE...THE
MTNS WILL BE THE MOST LIKELY TO SEE ANY STRONG WINDS. EVEN WITH
VALUES THIS HIGH...WIDESPREAD DAMAGE IS RARE IN THESE SLY WIND WWA
CASES. WILL ISSUE AND ADVISORY FOR ALL THE MTNS...BUT MENTION WINDS
MOST LIKELY IN THE HIGHER ELEVATIONS. SEVERE THUNDERSTORMS ARE ALSO
POSSIBLE SOUTH OF I-85 WED AFTERNOON AND WED EVENING. WITH THE
STRONG LOW LEVEL WINDS...WARM FRONTAL BOUNDARY AND POSSIBLE TRIPLE
POINT LOW...WIND SHEAR WILL BE VERY HIGH. SOUTH OF THE WARM FRONTAL
BOUNDARY...DEW POINTS WILL BE HIGH FOR THIS TIME OF YEAR. THIS WILL
LEAD TO CAPE VALUES OF A COUPLE OF HUNDRED J/KG. THIS COULD BE ENUF
INSTABILITY TO PRODUCE THUNDERSTORMS WHICH COULD THEN TAP THAT WIND
SHEAR. SEVERE POTENTIAL WILL BE HIGHEST ALONG AND SOUTH OF THE WARM
FRONT...AND THE EXACT LOCATION OF THIS BOUNDARY IS STILL IN QUESTION.
&&
.SHORT TERM /WEDNESDAY NIGHT THROUGH FRIDAY/...
AS OF 230 PM EST TUESDAY...A WEAKENING UPPER LOW WILL BE LOCATED
OVER EAST TN WEDNESDAY EVENING...LIFTING NORTHEAST BETWEEN A MEAN
TROUGH OVER THE CENTER OF THE CONTINENT AND A RIDGE OVER THE WESTERN
ATLANTIC. BY THURSDAY MORNING THE REMNANTS OF THIS LOW ARE
DOWNSTREAM OVER NEW ENGLAND. THE SOUTHERN APPALACHIANS REMAIN UNDER
SOUTHWEST FLOW ALOFT THROUGH FRIDAY AS A STRONG UPPER LEVEL SYSTEM
DIVES INTO THE BASE OF THE MEAN TROUGH.
ON WEDNESDAY EVENING A DRY SLOT WILL NORTHEAST FROM GA INTO THE
CAROLINAS BEHIND A DEPARTING COLD FRONT. THE NAM IS SLOWER TO DRY
THINGS OUT...AND THIS MORE CONSERVATIVE APPROACH WAS USED IN THE
FORECAST. MEANWHILE...MOIST NORTHWEST FLOW WILL BRING SCATTERED
SHOWERS TO THE NC MOUNTAINS BORDERING TN. ALTHOUGH MODEL 850 MB
TEMPERATURES DIP JUST BELOW ZERO...MODEL SOUNDINGS IN THAT AREA ARE
ABOVE FREEZING AT THE SURFACE...AND LOW LEVEL MOISTURE DOES NOT
EXTEND HIGH ENOUGH TO BE AT ICE NUCLEATION TEMPERATURES. FOR THESE
REASONS...SNOW HAS BEEN REMOVED FORM THE FORECAST FOR WEDNESDAY
NIGHT AND THURSDAY. THE LOW LEVEL WINDS ARE REALLY ONLY ORTHOGONAL
TO THE RIDGES AFTER 06Z THURSDAY...AND THEN WEAKEN AFTER 18Z
THURSDAY...LIMITING THE WINDOW OF BETTER SHOWER ACTIVITY. BY
THURSDAY NIGHT LOW LEVEL FLOW BECOMES PARALLEL TO THE RIDGES...AND
UPSLOPE FLOW SHOWERS SHOULD ABATE.
TEMPERATURES WILL BE MILD WEDNESDAY NIGHT BEFORE COLD ADVECTION SETS
IN...AND NEAR NORMAL THURSDAY AND THURSDAY NIGHT...AS COLD ADVECTION
IS OFFSET BY DOWNSLOPE FLOW AND SLIGHTLY RISING HEIGHTS AS THE
TROUGH DEEPENS TO THE WEST. TEMPERATURES FALL BELOW NORMAL ON FRIDAY
AS HEIGHTS BEGIN TO FALL AND DOWNSLOPE FLOW ENDS.
&&
.LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/...
AS OF 145 PM TUESDAY...AT 00 UTC SATURDAY...THE OP NAM/GFS AND SREF
ALL DEPICT PCPN SHIELD BLOSSOMING FROM THE NW GULF OF MEXICO WITHIN
THE FAST FLOW ALONG FRONT SIDE OF L/WV AXIS. PERFECT PROGGING THESE
SOLUTIONS WOULD SUPPORT PCPN STREAKING DOWNSTREAM INTO SATURDAY
AHEAD OF LIFTING TROUGH AXIS. THERE IS NO SUPPORT FOR THIS SOLUTION
FROM THE 12 UTC GGEM...WHOSE QPF IS RESTRICTED TO THE LLVL BAROCLINIC
ZONE WELL TO OUR SOUTH AND SE. WILL AWAIT THE 12 UTC ECMWF BEFORE
COMMITTING TO A NEW POP...BUT INITIAL THOUGHTS ARE TO AT LEAST NUDGE
POP UPWARD FRI NITE AND SATURDAY...AND WILL PLAN ON USING GFS/ECMWF
THICKNESS VALUES TO ACHIEVE THE DETAILS OF THE FCST P-TYPE...LIKELY
RESULTING IN A PERIOD OF MTN SNOW AND A RAIN/SNOW MIX ELSEWHERE.
EVEN THE SLOWER 00 UTC ECMWF SOLUTION IS PROGGING A DRY FCST FOR
SUNDAY AND WILL CONTINUE TO FAVOR THIS...REMAINING CONSISTENT WITH
THE GOING FCST. WITH THE FAST...QUASI-ZONAL FLOW DEVELOPING FOR
EARLY NEXT WEEK...CONFIDENCE IN ANY SPECIFIC SOLUTION IS LOW...AS
SUBTLE IMPULSES WILL HAVE THE ABILITY TO PRODUCE A PERIOD OR TWO OF
UNSETTLED WX. FOR THE TIME BEING...WILL PLAY PERSISTENCE...KEEPING
THE MONDAY FCST DRY AND COOL...WITH NOTHING MORE THAN A TOKEN SLIGHT
CHANCE ON TUESDAY.
&&
.AVIATION /20Z TUESDAY THROUGH SUNDAY/...
AT KCLT AND ELSEWHERE...VFR WITH INCREASING CIRRUS AND LIGHT SOUTH
TO SOUTHEAST WINDS THIS AFTERNOON. VFR EXPECTED THIS EVENING WITH
SLOWLY LOWERING CLOUDS FROM THE WEST AND WINDS BECOMING LIGHT
ENE...XCPT SLY AT KAVL. THEN CONDITIONS RAPIDLY DETERIORATE AFTER
MIDNIGHT AS DEEP MOISTURE AND STRONG LIFT DEVELOP AHEAD OF
APPROACHING LOW PRESSURE SYSTEM. EXPECT A QUICK FALL THRU MVFR TO
IFR WITH INCREASING RAIN CHANCES BY MORNING. NELY WINDS INCREASE IN
SPEED WITH GUSTS DEVELOPING. KAVL KEEPS ITS SOUTH TO SOUTHEAST WIND
THROUGHOUT.
OUTLOOK...WIDESPREAD IFR/MVFR CONDITIONS SHOULD BE EXPECTED FOR THE
BALANCE OF THE DAYTIME WEDNESDAY. CONDITIONS SHOULD BEGIN TO IMPROVE
EARLY THURSDAY...WITH VFR EXPECTED FRIDAY. ANOTHER PERIOD OF MVFR
CONDITIONS IS POSSIBLE ON SATURDAY.
&&
.GSP WATCHES/WARNINGS/ADVISORIES...
GA...FLASH FLOOD WATCH FROM WEDNESDAY MORNING THROUGH WEDNESDAY
EVENING FOR GAZ010-017-018-026-028-029.
WIND ADVISORY FROM 6 AM WEDNESDAY TO MIDNIGHT EST WEDNESDAY
NIGHT FOR GAZ010-017.
NC...FLASH FLOOD WATCH FROM WEDNESDAY MORNING THROUGH WEDNESDAY
EVENING FOR NCZ035>037-056-057-062>065-068>072-082-
501>510.
WIND ADVISORY FROM 6 AM WEDNESDAY TO MIDNIGHT EST WEDNESDAY
NIGHT FOR NCZ033-048>053-058-059-062>065-501-503-505-507-
509.
SC...FLASH FLOOD WATCH FROM WEDNESDAY MORNING THROUGH WEDNESDAY
EVENING FOR SCZ001>014-019.
WIND ADVISORY FROM 6 AM WEDNESDAY TO MIDNIGHT EST WEDNESDAY
NIGHT FOR SCZ001>003.
&&
SYNOPSIS...SBK
NEAR TERM...RWH
SHORT TERM...JAT
LONG TERM...CSH
AVIATION...RWHHazardous weather outlook, Dec 1, 4:48 AM EST, 10 hours 14 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 448 AM EST TUE DEC 1 2009 GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065- 068>072-082-501>510-SCZ001>014-019-021000- RABUN-HABERSHAM-STEPHENS-FRANKLIN-HART-ELBERT-AVERY-ALEXANDER- IREDELL-DAVIE-MADISON-YANCEY-MITCHELL-SWAIN-HAYWOOD-BUNCOMBE-CATAWBA- ROWAN-GRAHAM-NORTHERN JACKSON-MACON-SOUTHERN JACKSON-TRANSYLVANIA- HENDERSON-CLEVELAND-LINCOLN-GASTON-MECKLENBURG-CABARRUS-UNION NC- CALDWELL MOUNTAINS-GREATER CALDWELL-BURKE MOUNTAINS-GREATER BURKE- MCDOWELL MOUNTAINS-EASTERN MCDOWELL-RUTHERFORD MOUNTAINS- GREATER RUTHERFORD-POLK MOUNTAINS-EASTERN POLK-OCONEE MOUNTAINS- PICKENS MOUNTAINS-GREENVILLE MOUNTAINS-GREATER OCONEE- GREATER PICKENS-GREATER GREENVILLE-SPARTANBURG-CHEROKEE-YORK- ANDERSON-ABBEVILLE-LAURENS-UNION SC-CHESTER-GREENWOOD- 448 AM EST TUE DEC 1 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST GEORGIA...PIEDMONT NORTH CAROLINA...WESTERN NORTH CAROLINA AND UPSTATE SOUTH CAROLINA. .DAY ONE...TODAY AND TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. WIDESPREAD MODERATE TO HEAVY RAIN WILL DEVELOP OVER THE REGION WEDNESDAY MORNING AND WILL REMAIN INTO THE EARLY EVENING. STORM TOTAL RAINFALL IS FORECAST TO RANGE FROM 2 TO 3 INCHES...WITH LOCALLY HIGHER AMOUNTS ACROSS THE EAST FACING MOUNTAINS AND ADJACENT FOOTHILLS. HIGH ELEVATION AREAS MAY SEE PERIODS OF SOUTHEAST WINDS NEAR 30 MPH WITH GUSTS NEAR 50 MPH...ESPECIALLY WEDNESDAY MORNING THROUGH THE EARLY AFTERNOON. IN ADDITION...THE ATMOSPHERE EAST OF THE MOUNTAINS MAY SUPPORT A FEW STRONG TO SEVERE STORM CLUSTERS WEDNESDAY AFTERNOON AND EVENING. .SPOTTER INFORMATION STATEMENT... NONE. NED
The office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 1, 2:54 PM EST | Flash Flood Watch | GSP | Alexander, Burke, Cabarrus, Caldwell, Catawba, Cleveland and 14 more | 31 hr |
Nearby
Wind Advisories in North Carolina, 2009Wind Advisories in Georgia, 2009Wind Advisories in South Carolina, 2009Every wind advisory in 2009
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.