050
FNUS72 KGSP 231251
FWSGSP
SPOT FORECAST FOR COUNTY LINE FIRE...NORTH CAROLINA FOREST SERVICE
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
851 AM EDT THU APR 23 2026
FORECAST IS BASED ON FORECAST START TIME OF 1100 EDT ON APRIL 23.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
ANOTHER AFTERNOON OF CRITICAL RH TODAY WITH RH IN THE 30% RANGE.
RH COULD DIP LOWER FROM AFTERNOON MIXING. WINDS ARE LESS OF A FACTOR
THAN YESTERDAY, BUT WARMER TEMPERATURES, THE LOW RH, AND VERY DRY
VEGETATION WILL RESULT IN YET ANOTHER DAY WITH ABNORMALLY HIGH
FIRE DANGER. NO RAIN EXPECTED.
REST OF TODAY
SKY/WEATHER.........SUNNY (15-25 PERCENT).
CHANCE OF THUNDER...10 PERCENT.
MAX TEMPERATURE.....AROUND 77.
MIN HUMIDITY........30 PERCENT.
WIND (20 FT)........LIGHT WINDS.
MIXING HEIGHT.......8900 FT AGL.
TRANSPORT WINDS.....WEST 9 TO 15 MPH.
SMOKE DISPERSAL.....EXCELLENT (77338 MPH-FT).
LVORI...............1.
ADI.................90 TO 107.
STABILITY CLASS.....1.
PCPN AMOUNT.........0.00 INCHES.
CEILING (FT)........25000 DECREASING TO 7100 LATE IN THE AFTERNOON.
VISIBILITY (SM).....10.
SFC PRESSURE (IN)...27.12.
TIME (EDT) 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........3 5 8 17 26 26 35
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF THDR (%).0 0 0 10 10 10 10
TEMP............68 72 75 76 76 77 76
DEWPOINT........45 44 43 43 43 43 44
RH..............44 37 33 31 30 30 32
20 FT WIND DIR..NW W W W W W W
20 FT WIND SPD..2 3 3 3 3 3 3
20 FT WIND GUST.9 10 9 9 9 9 9
MIX HGT (KFT)...5.6 7.0 8.0 8.5 8.8 8.9 8.4
TRANSP WIND DIR.NW W W W W W W
TRANSP WIND SPD.15 13 12 9 10 10 9
LVORI...........1 1 1 1 1 1 1
ADI.............103 106 107 90 105 105 90
VRATE MPH-FT/1K.84 89 92 78 91 92 77
CEILING (HFT)...250 250 250 71 71 71 71
VISIBILITY (SM).10 10 10 10 10 10 10
SFC PRES (IN)...723 721 719 717 715 713 712
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (20-30 PERCENT).
CHANCE OF THUNDER...10 PERCENT.
MIN TEMPERATURE.....AROUND 51.
MAX HUMIDITY........74 PERCENT.
WIND (20 FT)........LIGHT WINDS.
MIXING HEIGHT.......700 FT AGL.
TRANSPORT WINDS.....NORTHWEST 7 TO 8 MPH.
SMOKE DISPERSAL.....GOOD (55011 MPH-FT) EARLY IN THE EVENING
DECREASING TO POOR (5063 MPH-FT) LATE IN THE
NIGHT.
LVORI...............2.
ADI.................66 EARLY IN THE EVENING DECREASING TO 3 LATE IN
THE NIGHT.
STABILITY CLASS.....4.
PCPN AMOUNT.........0.00 INCHES.
CEILING (FT)........6100.
VISIBILITY (SM).....10.
SFC PRESSURE (IN)...27.08.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........43 32 32 24 22 19 15 19 19 19 18 8
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF THDR (%).10 10 0 0 0 0 0 0 0 0 0 0
TEMP............75 74 68 64 61 59 57 55 55 53 52 52
DEWPOINT........45 45 46 46 45 44 44 43 43 43 43 43
RH..............34 37 45 51 54 57 60 64 64 68 71 70
20 FT WIND DIR..W W NW N N N N N N N N N
20 FT WIND SPD..2 2 1 1 0 0 0 0 0 0 0 0
20 FT WIND GUST.8 8 8 7 6 6 6 6 6 6 6 6
MIX HGT (KFT)...6.8 3.9 0.8 0.8 0.7 0.8 0.8 0.8 0.8 0.7 0.7 0.7
TRANSP WIND DIR.W W NW NW NW NW NW NW NW NW NW NW
TRANSP WIND SPD.8 8 8 7 7 7 7 8 8 8 8 8
LVORI...........1 2 2 2 2 3 3 3 3 3 3 3
ADI.............66 4 4 3 3 3 3 4 4 4 4 4
VRATE MPH-FT/1K.55 31 7 6 5 5 5 6 6 6 6 6
CEILING (HFT)...62 62 62 62 62 62 62 62 61 61 61 61
VISIBILITY (SM).10 10 10 10 10 10 10 10 10 10 10 10
SFC PRES (IN)...712 712 713 714 714 714 713 711 710 709 708 708
FRIDAY
SKY/WEATHER.........SUNNY (20-30 PERCENT) THEN BECOMING PARTLY
SUNNY (45-55 PERCENT). SLIGHT CHANCE OF RAIN
SHOWERS LATE IN THE AFTERNOON.
CHANCE OF THUNDER...10 PERCENT.
MAX TEMPERATURE.....AROUND 77.
MIN HUMIDITY........36 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHWEST AROUND 5 MPH
LATE IN THE AFTERNOON, THEN BECOMING LIGHT LATE
IN THE AFTERNOON.
MIXING HEIGHT.......8600 FT AGL.
TRANSPORT WINDS.....NORTHWEST 9 TO 10 MPH SHIFTING TO THE SOUTHWEST
8 TO 10 MPH LATE IN THE MORNING.
SMOKE DISPERSAL.....POOR (6790 MPH-FT) EARLY IN THE MORNING
INCREASING TO EXCELLENT (79064 MPH-FT) IN THE
AFTERNOON.
LVORI...............2.
ADI.................4 EARLY IN THE MORNING INCREASING TO 91 IN THE
AFTERNOON.
STABILITY CLASS.....4.
PCPN AMOUNT.........0.00 INCHES.
CEILING (FT)........6100 INCREASING TO 30000.
VISIBILITY (SM).....10 IN THE MORNING AND EARLY AFTERNOON.
SFC PRESSURE (IN)...27.02.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........7 22 15 10 15 20 31 41 52 52 52 52
WEATHER COV..... SCH
WEATHER TYPE.... RW
TSTM COV........
CHC OF THDR (%).0 0 0 0 0 0 0 0 10 10 10 10
TEMP............51 52 54 59 65 70 73 74 75 76 76 76
DEWPOINT........43 43 44 46 47 47 47 47 46 47 48 48
RH..............74 71 71 64 53 44 39 37 37 36 36 38
20 FT WIND DIR..N N N N W W W SW SW SW SW SW
20 FT WIND SPD..0 0 0 0 1 2 3 3 5 5 5 3
20 FT WIND GUST.6 7 7 7 7 8 9 10 10 10 10 9
MIX HGT (KFT)...0.7 0.7 0.7 2.6 5.0 7.1 8.3 8.6 8.3 7.9 6.9 5.6
TRANSP WIND DIR.NW NW NW NW W W W SW SW SW W W
TRANSP WIND SPD.9 10 10 9 9 10 9 9 8 9 10 10
LVORI...........3 3 3 1 1 1 1 1 1 1 1 1
ADI.............4 10 10 31 57 88 88 91 78 85 86 72
VRATE MPH-FT/1K.7 7 8 24 46 74 76 79 67 72 72 58
CEILING (HFT)...61 61 117 117 117 117 117 117 300 300 300 300
VISIBILITY (SM).10 10 10 10 10 10 10 10
SFC PRES (IN)...709 709 710 710 710 709 707 706 704 703 702 702
FORECASTER...CP
REQUESTED BY...MICHAEL CROUSE
TYPE OF REQUEST...WILDFIRE
.TAG 2611401.1/GSP
.DELDT 04/23/26
.FORMATTERVERSION 2.0.0
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