419  
FNUS72 KGSP 091231  
FWSGSP  
 
SPOT FORECAST FOR MCCLURES BOG...THE NATURE CONSERVANCY  
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC  
831 AM EDT FRI APR 9 2021  
 
FORECAST IS BASED ON IGNITION TIME OF 0900 EDT ON APRIL 09.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
 
SHOWER AND THUNDERSTORM CHANCES WILL CONTINUE THROUGH THE WEEKEND AS  
A WEAK COLD FRONT APPROACHES THEN CROSSES THE AREA. HIGH PRESSURE  
BUILDS IN BEHIND THE DEPARTING COLD FRONT SUNDAY INTO MONDAY,  
LEADING TO DRIER CONDITIONS.  
   
REST OF TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT) THEN BECOMING  
MOSTLY SUNNY (35-45 PERCENT). SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS LATE IN THE  
AFTERNOON.  
MAX TEMPERATURE.....AROUND 77.  
MIN HUMIDITY........37 PERCENT.  
WIND (20 FT)........LIGHT WINDS BECOMING SOUTH 5 TO 8 MPH IN THE  
AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED  
NEAR THUNDERSTORMS LATE IN THE AFTERNOON.  
MIXING HEIGHT.......2800 FT AGL INCREASING TO 8600 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 6 TO 15 MPH INCREASING TO 16 TO 20  
MPH LATE IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (5300 KNOT-FT) EARLY IN THE MORNING  
INCREASING TO GOOD (52300 KNOT-FT) IN THE  
AFTERNOON INCREASING TO EXCELLENT (132000  
KNOT-FT).  
LVORI...............5.  
ADI.................15 INCREASING TO 90.  
STABILITY CLASS.....2.  
PCPN AMOUNT.........0.01 INCHES.  
CEILING (FT)........12000 INCREASING TO 16000 LATE IN THE MORNING,  
THEN DECREASING TO 9000 LATE IN THE AFTERNOON.  
VISIBILITY (SM).....9.  
SFC PRESSURE (IN)...27.35.  
 
TIME (EDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........78 49 46 36 30 34 37 45 43  
WEATHER COV..... SCH SCH SCH  
WEATHER TYPE.... RW RW RW  
TSTM COV........ SCH SCH SCH  
TEMP............54 60 66 70 73 75 75 75 76  
DEWPOINT........54 55 54 53 50 47 49 48 48  
RH..............100 84 65 53 45 38 39 38 37  
20 FT WIND DIR..W W W SW SW S S S S  
20 FT WIND SPD..3 3 3 5 6 7 8 8 8  
20 FT WIND GUST.7 8 9 12 14 15 15 16 16  
MIX HGT (KFT)...1.1 1.9 2.8 4.4 5.9 7.5 7.9 8.2 8.6  
TRANSP WIND DIR.SW SW SW SW SW SW SW SW SW  
TRANSP WIND SPD.6 9 13 14 15 16 17 18 20  
LVORI...........8 4 1 1 1 1 1 1 1  
ADI.............7 23 44 54 67 79 86 93 100  
VRATE KT-FT/10005 15 31 52 77 105 118 132 147  
CEILING (HFT)...120 150 170 180 160 160 110 110 90  
VISIBILITY (SM).9 10 10 10 10 10 10 10 10  
SFC PRES (IN)...736 737 738 737 737 737 736 736 735  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT) THEN BECOMING  
MOSTLY CLOUDY (60-70 PERCENT) THEN BECOMING  
PARTLY CLOUDY (45-55 PERCENT) THEN BECOMING  
MOSTLY CLOUDY (70-80 PERCENT). SLIGHT CHANCE OF  
RAIN SHOWERS IN THE EVENING. SLIGHT CHANCE OF  
THUNDERSTORMS IN THE EVENING. CHANCE OF RAIN  
SHOWERS OVERNIGHT.  
MIN TEMPERATURE.....AROUND 55.  
MAX HUMIDITY........100 PERCENT.  
WIND (20 FT)........SOUTH WINDS 5 TO 7 MPH EARLY IN THE EVENING  
BECOMING LIGHT. GUSTY AND ERRATIC WINDS  
EXPECTED NEAR THUNDERSTORMS IN THE EVENING.  
MIXING HEIGHT.......6400 FT AGL DECREASING TO 1100 FT AGL.  
TRANSPORT WINDS.....SOUTH 12 TO 18 MPH.  
SMOKE DISPERSAL.....EXCELLENT (89600 KNOT-FT) DECREASING TO FAIR  
(17300 KNOT-FT) EARLY IN THE EVENING DECREASING  
TO POOR (12500 KNOT-FT) LATE IN THE NIGHT.  
LVORI...............4.  
ADI.................90 DECREASING TO 8.  
STABILITY CLASS.....4.  
PCPN AMOUNT.........0.08 INCHES.  
CEILING (FT)........5000 DECREASING TO 400.0.  
VISIBILITY (SM).....7.  
SFC PRESSURE (IN)...27.32.  
 
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........42 45 42 67 58 49 49 61 71 78 71 93  
WEATHER COV.....SCH SCH SCH SCH SCH SCH CHC CHC CHC CHC CHC CHC  
WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW RW RW  
TSTM COV........SCH SCH SCH SCH SCH SCH SCH  
TEMP............73 72 68 65 63 61 60 59 58 57 57 57  
DEWPOINT........49 49 50 53 54 54 54 55 55 56 55 56  
RH..............42 45 54 63 71 77 80 86 88 95 93 94  
20 FT WIND DIR..S S S S S S S S S S S S  
20 FT WIND SPD..7 6 5 5 3 2 2 2 2 2 2 2  
20 FT WIND GUST.15 13 10 9 7 6 7 7 7 7 6 6  
MIX HGT (KFT)...7.5 6.4 5.3 4.1 2.8 1.6 1.6 1.6 1.6 1.4 1.3 1.1  
TRANSP WIND DIR.S S S S S SW SW SW SW S S S  
TRANSP WIND SPD.18 16 15 14 13 13 12 12 12 12 12 13  
LVORI...........1 2 2 3 3 4 4 5 5 7 6 6  
ADI.............90 11 10 9 6 6 5 5 5 5 5 6  
VRATE KT-FT/1000120 90 69 49 31 17 16 16 16 14 13 13  
CEILING (HFT)...70 70 60 60 50 35 24 14 7.0 6.0 6.0 4.0  
VISIBILITY (SM).10 10 9 9 9 8 8 8 8 7 7 7  
SFC PRES (IN)...736 737 738 738 738 738 737 737 736 735 734 732  
 

 
FORECASTER...MIKE REHNBERG/ANDREW KIMBALL  
REQUESTED BY...JEFFREY ADAM WARWICK  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2108477.0/GSP  
.DELDT 04/09/21  
.FORMATTERVERSION 1.0.26  
 
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