856
FNUS72 KGSP 241944
FWSGSP
SPOT FORECAST FOR COW MTN RX...BIA NC ECA
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
244 PM EST TUE FEB 24 2026
FORECAST IS BASED ON IGNITION TIME OF 1600 EST ON FEBRUARY 24.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
EXCELLENT MIXING IS UNDERWAY TODAY, TAPPING INTO SOME GOOD DRY AIR ALOFT.
BASED ON FORECAST PROFILES, WOULD EXPECT RH TO BE DRIEST OVER THE NEXT 2-3
HOURS AND THEN BEGIN TO REBOUND BY 5-6 PM. FAIRLY LIGHT WINDS, 1-5KTS, WILL
CONTINUE THROUGH MOST OF THE AFTERNOON, LIGHT, AND OUT OF THE SOUTHWEST.
BASED ON RECENT DATA FROM THE NEARBY COWS MTN RAWS SITE, IT APPEARS WINDS
ARE CURRENTLY FAVORING A MORE WSW DIRECTION (MEANING SLIGHTLY CROSS-VALLEY
FLOW FROM W TO E, JUST LOOKING AT THE TOPOGRAPHY). THIS SEEMS UNLIKELY TO
CHANGE MUCH GIVEN THE ORIENTATION OF THE VALLEY AND SUNLIGHT. COULD SEE GUSTS
OF 10-13KTS, BUT THEY WON'T BE VERY FREQUENT EXCEPT AT HIGHER-ELEVATION, MORE
EXPOSED LOCATIONS ON RIDGELINES.
TONIGHT, MOISTURE SHOULD CONTINUE TO INCREASE. CLOUDS WILL BUILD UP AND THE
MIN RH TOMORROW WILL BE IN THE 50-60% RANGE. COULD EVEN START SEEING SOME LIGHT
DRIZZLE BY THIS TIME TOMORROW.
IF YOU HAVE QUESTIONS, REACH OUT TO THE OFFICE, AND A METEOROLOGIST WILL BE
ABLE TO ANSWER YOUR QUESTIONS.
REST OF TODAY
SKY/WEATHER.........PARTLY SUNNY (55-65 PERCENT).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....AROUND 51.
MIN HUMIDITY........22 PERCENT.
WIND (20 FT)........LIGHT WINDS.
MIXING HEIGHT.......3400 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 12 TO 13 MPH.
SMOKE DISPERSAL.....GOOD (30382 MPH-FT).
LVORI...............2.
ADI.................26 TO 32.
STABILITY CLASS.....4.
PCPN AMOUNT.........0.00 INCHES.
CEILING (FT)........19800.
VISIBILITY (SM).....10.
SFC PRESSURE (IN)...26.45.
TIME (EST) 4PM 5PM
SKY (%).........50 67
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF THDR (%).0 0
TEMP............50 48
DEWPOINT........13 14
RH..............22 24
20 FT WIND DIR..SW SW
20 FT WIND SPD..3 2
20 FT WIND GUST.12 10
MIX HGT (KFT)...3.4 2.6
TRANSP WIND DIR.W SW
TRANSP WIND SPD.13 12
LVORI...........1 2
ADI.............32 26
VRATE MPH-FT/1K.43 30
CEILING (HFT)...200 198
VISIBILITY (SM).10 10
SFC PRES (IN)...646 645
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT).
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....AROUND 30.
MAX HUMIDITY........77 PERCENT.
WIND (20 FT)........LIGHT WINDS.
MIXING HEIGHT.......1400 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 9 TO 10 MPH.
SMOKE DISPERSAL.....FAIR (15651 MPH-FT) EARLY IN THE EVENING
DECREASING TO POOR (12544 MPH-FT) LATE IN THE
NIGHT.
LVORI...............3.
ADI.................4 TO 5.
STABILITY CLASS.....6.
PCPN AMOUNT.........0.00 INCHES.
CEILING (FT)........18900.
VISIBILITY (SM).....10.
SFC PRESSURE (IN)...26.36.
TIME (EST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........66 72 79 77 76 83 78 73 77 74 71 55
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............45 41 37 36 35 33 33 32 31 32 32 31
DEWPOINT........15 16 16 17 18 19 19 19 19 20 20 21
RH..............30 35 42 45 48 54 58 59 61 61 63 67
20 FT WIND DIR..SW SW SW S S S SW SW SW SW S S
20 FT WIND SPD..2 2 2 2 2 2 2 2 2 2 2 2
20 FT WIND GUST.10 10 10 12 12 12 12 12 12 12 13 12
MIX HGT (KFT)...1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.5 1.4
TRANSP WIND DIR.SW SW SW SW SW S SW SW SW W W SW
TRANSP WIND SPD.9 9 9 9 9 9 9 9 10 10 10 9
LVORI...........2 2 2 2 2 2 3 3 3 3 3 3
ADI.............4 4 4 4 4 4 4 4 5 5 5 4
VRATE MPH-FT/1K.13 13 13 13 13 13 13 13 14 15 16 13
CEILING (HFT)...206 211 204 193 189 192 192 193 220 203 224 221
VISIBILITY (SM).10 10 10 10 10 10 10 10 10 10 10 10
SFC PRES (IN)...645 645 645 644 644 643 642 641 640 638 637 636
FORECASTER...MPR
REQUESTED BY...DAVID COLLINS
TYPE OF REQUEST...PRESCRIBED
.TAG 2603820.0/GSP
.DELDT 02/24/26
.FORMATTERVERSION 2.0.0
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