330
FNUS72 KGSP 141220
FWSGSP
SPOT FORECAST FOR OLD DUFFER RX...NC PARKS
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
820 AM EDT THU MAY 14 2026
FORECAST IS BASED ON IGNITION TIME OF 0800 EDT ON MAY 14.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
INCREASING WINDS FROM THE NW ARE EXPECTED THROUGH THE AFTERNOON,
WITH SUSTAINED WINDS OF 5-10 MPH AND GUSTS OF 14-18 MPH EXPECTED
THROUGH MUCH OF THE DAY. OTHERWISE, SUNNY, DRY, AND SEASONABLY WARM
WITH MINIMUM RH IN THE 28-33% FORECAST THIS AFTERNOON. WINDS
DIMINISH THIS EVENING AND REMAIN LIGHT THROUGH TOMORROW, WITH
DIRECTIONS GRADUALLY TURNING FROM THE SOUTH. WARMER FRIDAY, WITH
DRY AND MOSTLY CLEAR CONDITIONS CONTINUING. MINIMUM RH OF 27-32% IS
FORECAST FRIDAY AFTERNOON.
REST OF TODAY
SKY/WEATHER.........SUNNY (0-10 PERCENT).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....AROUND 70.
MIN HUMIDITY........29 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 6 TO 9 MPH.
MIXING HEIGHT.......5500 FT AGL.
TRANSPORT WINDS.....NORTHWEST 17 TO 21 MPH.
SMOKE DISPERSAL.....GOOD (42236 MPH-FT) EARLY IN THE MORNING
INCREASING TO EXCELLENT (112900 MPH-FT) IN THE
AFTERNOON.
LVORI...............2.
ADI.................55 EARLY IN THE MORNING INCREASING TO 128 IN
THE AFTERNOON.
STABILITY CLASS.....1.
PCPN AMOUNT.........0.00 INCHES.
CEILING (FT)........25000.
VISIBILITY (SM).....10.
SFC PRESSURE (IN)...28.2.
TIME (EDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........1 2 2 1 1 1 2 1 4 4
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0
TEMP............51 53 58 60 63 65 67 68 69 69
DEWPOINT........39 40 39 35 35 34 34 34 36 36
RH..............63 61 49 39 35 31 30 29 29 29
20 FT WIND DIR..NW NW NW NW NW NW NW NW NW NW
20 FT WIND SPD..6 7 7 7 7 8 8 8 9 8
20 FT WIND GUST.17 18 17 16 16 16 16 17 17 17
MIX HGT (KFT)...2.4 2.9 3.5 4.0 4.4 4.8 5.1 5.4 5.5 5.3
TRANSP WIND DIR.NW NW NW NW NW NW NW NW NW NW
TRANSP WIND SPD.17 20 21 20 20 20 21 21 21 21
LVORI...........3 1 1 1 1 1 1 1 1 1
ADI.............55 71 89 94 101 110 122 127 128 125
VRATE MPH-FT/1K.42 57 73 79 86 95 106 111 113 109
CEILING (HFT)...250 250 250 250 250 250 250 250 250 250
VISIBILITY (SM).10 10 10 10 10 10 10 10 10 10
SFC PRES (IN)...820 821 822 822 822 822 822 822 822 822
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (0-10 PERCENT).
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....AROUND 42.
MAX HUMIDITY........91 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 5 TO 8 MPH BECOMING LIGHT.
MIXING HEIGHT.......400 FT AGL.
TRANSPORT WINDS.....NORTHWEST 12 TO 21 MPH DECREASING TO 6 TO 8 MPH
IN THE LATE EVENING AND OVERNIGHT.
SMOKE DISPERSAL.....EXCELLENT (107951 MPH-FT) EARLY IN THE EVENING
DECREASING TO POOR (2301 MPH-FT) LATE IN THE
NIGHT.
LVORI...............4.
ADI.................124 EARLY IN THE EVENING DECREASING TO 3 LATE
IN THE NIGHT.
STABILITY CLASS.....4.
PCPN AMOUNT.........0.00 INCHES.
CEILING (FT)........25000.
VISIBILITY (SM).....10.
SFC PRESSURE (IN)...28.23.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........5 4 4 2 5 5 5 8 7 11 9 10
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............68 67 64 59 55 52 50 48 46 45 43 42
DEWPOINT........40 41 42 42 41 41 41 41 41 41 40 40
RH..............36 38 43 53 60 65 71 77 84 87 89 91
20 FT WIND DIR..NW NW NW NW NW NW NW NW NW W W W
20 FT WIND SPD..8 7 5 3 2 2 2 2 2 1 1 1
20 FT WIND GUST.18 18 16 13 9 6 6 6 6 5 5 5
MIX HGT (KFT)...5.2 4.7 0.5 0.4 0.4 0.5 0.4 0.5 0.4 0.4 0.4 0.4
TRANSP WIND DIR.NW NW NW NW N NW NW N N NW NW NW
TRANSP WIND SPD.21 20 12 8 7 7 6 7 6 6 6 6
LVORI...........1 2 2 2 3 3 3 4 5 6 6 6
ADI.............124 9 5 4 3 3 3 3 3 3 3 3
VRATE MPH-FT/1K.108 92 5 3 3 3 3 3 3 2 3 2
CEILING (HFT)...250 250 250 250 250 250 250 250 250 250 250 250
VISIBILITY (SM).10 10 10 10 10 10 10 10 10 10 10 10
SFC PRES (IN)...823 824 825 827 828 830 831 831 832 833 834 835
FRIDAY
SKY/WEATHER.........SUNNY (5-15 PERCENT).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....AROUND 80.
MIN HUMIDITY........28 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTH 5 TO 6 MPH LATE IN
THE AFTERNOON.
MIXING HEIGHT.......6700 FT AGL.
TRANSPORT WINDS.....WEST 5 TO 12 MPH.
SMOKE DISPERSAL.....POOR (1956 MPH-FT) EARLY IN THE MORNING
INCREASING TO EXCELLENT (77453 MPH-FT) IN THE
AFTERNOON.
LVORI...............4.
ADI.................3 EARLY IN THE MORNING INCREASING TO 93 IN THE
AFTERNOON.
STABILITY CLASS.....4.
PCPN AMOUNT.........0.00 INCHES.
CEILING (FT)........25000 INCREASING TO 30000 LATE IN THE MORNING.
VISIBILITY (SM).....10 IN THE MORNING AND EARLY AFTERNOON.
SFC PRESSURE (IN)...28.29.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........4 7 2 2 4 3 5 9 5 7 8 19
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............43 43 46 54 60 66 70 73 76 78 79 79
DEWPOINT........40 40 41 43 43 42 42 42 42 42 43 44
RH..............90 88 82 65 52 42 37 32 29 28 28 29
20 FT WIND DIR..W W W W SW SW S S S S S S
20 FT WIND SPD..1 1 1 1 1 1 2 2 3 5 6 6
20 FT WIND GUST.5 3 3 3 3 6 6 7 9 9 10 10
MIX HGT (KFT)...0.4 0.4 0.8 1.8 2.5 3.5 4.3 4.5 5.0 6.4 6.7 4.9
TRANSP WIND DIR.W W NW W W W W W W W W SW
TRANSP WIND SPD.6 5 5 5 6 6 8 8 10 9 12 10
LVORI...........6 6 4 3 2 2 1 1 1 1 1 1
ADI.............3 4 5 10 19 26 44 46 65 72 93 63
VRATE MPH-FT/1K.2 2 4 8 14 20 35 37 52 59 77 51
CEILING (HFT)...250 250 250 250 250 300 300 300 300 300 300 300
VISIBILITY (SM).10 10 10 10 10 10 10 10 10
SFC PRES (IN)...837 838 839 839 839 838 837 835 833 831 830 829
FORECASTER...JDL
REQUESTED BY...A. SLACK
TYPE OF REQUEST...PRESCRIBED
.TAG 2613636.0/GSP
.DELDT 05/14/26
.FORMATTERVERSION 2.0.0
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