805
FNUS73 KUNR 191616
FWSUNR
SPOT FORECAST FOR WIND CAVE N.P. PILES...WFS
NATIONAL WEATHER SERVICE RAPID CITY SD
916 AM MST THU FEB 19 2026
FORECAST IS BASED ON IGNITION TIME OF 0900 MST ON FEBRUARY 19.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
A STORM SYSTEM WILL CONTINUE ACROSS THE REGION
TODAY, BRINGING AN ADDITIONAL INCH OR TWO OF SNOW. THE SNOW WILL
TAPER OFF LATE THIS AFTERNOON. WINDS WILL BE LIGHT LATE TONIGHT,
THEN SOUTH AT 5-10 MPH THROUGH THURSDAY. SMOKE DISPERSAL WILL BE
POOR. DRIER WEATHER IS EXPECTED FRIDAY.
REST OF TODAY
SKY/WEATHER.........CLOUDY (85-95 PERCENT). SNOW LIKELY LATE IN THE
MORNING, THEN SNOW IN THE AFTERNOON.
MAX TEMPERATURE.....AROUND 16.
MIN HUMIDITY........59 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 5 TO 10 MPH WITH GUSTS TO
AROUND 15 MPH.
CWR.................65 PERCENT.
MIXING HEIGHT.......1500 TO 2000 FT AGL.
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH SHIFTING TO THE EAST LATE IN
THE AFTERNOON.
SMOKE DISPERSAL.....POOR.
TIME (MST) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........94 93 92 92 92 94 95 95 89
WEATHER COV.....LKY LKY CHC CHC LKY LKY DEF DEF CHC
WEATHER TYPE....SN SN SN SN SN SN SN SN SN
TSTM COV........
CWR.............60 60 60 60 60 60 60 60 60
TEMP............6 7 10 13 15 16 16 14 13
RH..............95 90 78 70 63 59 59 64 67
20 FT WIND DIR..S S S S S S SE SE SE
20 FT WIND SPD..6 6 6 6 7 7 6 5 3
20 FT WIND GUST.9 10 13 13 13 15 14 13 12
MIX HGT (KFT)...1.3 1.4 1.8 1.9 2.0 1.8 1.6 1.7 1.5
TRANSP WIND DIR.S S S S SW SW S E E
TRANSP WIND SPD.9 10 12 13 13 13 13 10 9
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT). CHANCE OF SNOW
EARLY IN THE EVENING.
MIN TEMPERATURE.....AROUND 1 ABOVE.
MAX HUMIDITY........87 PERCENT.
WIND (20 FT)........LIGHT AND VARIABLE WINDS/TERRAIN DRIVEN.
CWR.................25 PERCENT.
MIXING HEIGHT.......400 TO 900 FT AGL.
TRANSPORT WINDS.....EAST AROUND 10 MPH SHIFTING TO THE NORTHWEST
AFTER 3 AM.
SMOKE DISPERSAL.....POOR.
TIME (MST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........85 82 79 80 80 79 79 76 72 68 64 57
WEATHER COV.....CHC CHC SCH SCH SCH
WEATHER TYPE....SN SN SN SN SN
TSTM COV........
CWR.............20 20 20 20 20 20 20 20 20 20 20 20
TEMP............13 12 11 10 10 9 7 4 2 1 1 1
RH..............63 70 69 73 71 72 80 82 87 86 82 79
20 FT WIND DIR..SE SE SE S S S S SW S NE NE N
20 FT WIND SPD..3 2 2 2 2 2 2 2 1 1 2 2
20 FT WIND GUST.9 8 7 7 7 8 8 7 7 7 7 6
MIX HGT (KFT)...1.1 0.8 0.7 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4
TRANSP WIND DIR.E E SE SE S SW SW W W NW NW N
TRANSP WIND SPD.7 6 6 6 7 8 7 7 6 6 5 5
FRIDAY
SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT).
MAX TEMPERATURE.....AROUND 27.
MIN HUMIDITY........40 PERCENT.
WIND (20 FT)........SOUTH TO SOUTHEAST WINDS AROUND 5 TO 10 MPH.
CWR.................0 PERCENT.
MIXING HEIGHT.......2100 TO 2600 FT AGL.
TRANSPORT WINDS.....NORTHWEST AROUND 5 MPH SHIFTING TO THE
SOUTHWEST 5 TO 15 MPH IN THE MORNING, THEN
SHIFTING TO THE SOUTH AROUND 15 MPH EARLY IN
THE AFTERNOON SHIFTING TO THE EAST LATE IN THE
AFTERNOON.
SMOKE DISPERSAL.....POOR.
TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........56 56 54 47 40 33 35 38 41 46 52 57
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............3 5 9 13 17 21 24 26 27 27 25 23
RH..............76 70 69 61 53 47 43 42 40 40 44 47
20 FT WIND DIR..N W W SW S S S SE SE SE SE SE
20 FT WIND SPD..2 1 1 2 3 5 6 6 6 6 5 3
20 FT WIND GUST.5 5 6 8 10 13 15 15 16 15 13 10
MIX HGT (KFT)...0.4 0.4 0.5 0.9 1.3 1.8 2.0 2.3 2.6 1.9 1.2 0.5
TRANSP WIND DIR.NW W SW SW SW SW SW SW SW S SE E
TRANSP WIND SPD.5 3 5 6 8 10 12 13 13 12 10 8
FORECASTER...13
REQUESTED BY...DAN SWANSON
TYPE OF REQUEST...PRESCRIBED
.TAG 2603100.1/UNR
.DELDT 02/19/26
.FORMATTERVERSION 2.0.0
.EMAIL KENN_PERREAULT@NPS.GOV,DAN_SWANSON@NPS.GOV
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