207
FNUS73 KUNR 182019
FWSUNR
SPOT FORECAST FOR WIND CAVE N.P. PILES...WFS
NATIONAL WEATHER SERVICE RAPID CITY SD
119 PM MST WED FEB 18 2026
FORECAST IS BASED ON IGNITION TIME OF 1300 MST ON FEBRUARY 18.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
A STORM SYSTEM WILL CROSS THE REGION, BRINGING SNOW
TO THE BURN SITE LATE TONIGHT THROUGH THURSDAY. TOTAL SNOW AMOUNTS
ARE EXPECTED TO BE 2 TO 4 INCHES BY MIDDAY THURSDAY. WINDS WILL BE
LIGHT LATE TONIGHT, THEN SOUTH AT 5-10 MPH THROUGH THURSDAY. SMOKE
DISPERSAL WILL BE POOR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT) THEN BECOMING
MOSTLY CLOUDY (70-80 PERCENT). CHANCE OF SNOW
EARLY IN THE EVENING. SNOW EARLY IN THE
MORNING.
MIN TEMPERATURE.....AROUND 15.
MAX HUMIDITY........70 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 10 TO 15 MPH WITH GUSTS TO
AROUND 25 MPH SHIFTING TO THE NORTH AT 5 TO 10
MPH WITH GUSTS TO AROUND 15 MPH AFTER 3 AM.
CWR.................45 PERCENT.
MIXING HEIGHT.......700 TO 1200 FT AGL.
TRANSPORT WINDS.....NORTHEAST 30 TO 35 MPH BECOMING 10 MPH LATE.
SMOKE DISPERSAL.....POOR.
TIME (MST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........48 54 60 60 58 73 73 74 80 85 90 100
WEATHER COV..... CHC CHC CHC CHC CHC CHC CHC CHC CHC DEF
WEATHER TYPE.... SN SN SN SN SN SN SN SN SN SN
TSTM COV........
CWR.............40 40 40 40 40 40 40 40 40 40 40 40
TEMP............32 30 28 25 23 22 21 19 18 17 16 15
RH..............31 34 37 42 45 47 49 51 53 61 61 70
20 FT WIND DIR..NE NE NE NE NE NE NE NE N NE N N
20 FT WIND SPD..16 16 15 15 15 14 14 14 10 9 8 6
20 FT WIND GUST.25 25 25 24 23 22 20 19 18 18 15 14
MIX HGT (KFT)...1.3 0.9 1.2 1.2 0.8 0.7 0.7 1.0 1.3 1.5 1.3 1.2
TRANSP WIND DIR.NE NE NE NE NE N N N N N N N
TRANSP WIND SPD.28 31 32 33 33 32 26 21 15 13 12 10
THURSDAY
SKY/WEATHER.........CLOUDY (95-100 PERCENT). SNOW, THEN CHANCE OF
SNOW LATE IN THE AFTERNOON.
MAX TEMPERATURE.....AROUND 20.
MIN HUMIDITY........56 PERCENT.
WIND (20 FT)........SOUTH AT 5 TO 10 MPH. TERRAIN-INFLUENCED IN
THE EARLY MORNING AND LATE AFTERNOON.
CWR.................50 PERCENT.
MIXING HEIGHT.......1400 TO 1900 FT AGL.
TRANSPORT WINDS.....SOUTHEAST TO SOUTH AROUND 10 MPH.
SMOKE DISPERSAL.....POOR.
TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........100 100 100 100 100 99 99 99 99 99 99 97
WEATHER COV.....DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF CHC
WEATHER TYPE....SN SN SN SN SN SN SN SN SN SN SN SN
TSTM COV........
CWR.............50 50 50 50 50 50 50 50 50 50 50 50
TEMP............15 15 16 16 16 16 18 19 20 20 19 17
RH..............70 67 64 64 64 64 59 59 56 56 56 58
20 FT WIND DIR..N E S S S S S S SE SE E E
20 FT WIND SPD..6 6 6 6 6 6 6 6 6 6 5 3
20 FT WIND GUST.13 13 13 12 13 15 14 15 14 14 13 12
MIX HGT (KFT)...1.2 1.2 1.2 1.4 1.6 1.8 1.8 1.9 1.9 1.6 1.3 1.1
TRANSP WIND DIR.NE E E SE S S S S S S SE E
TRANSP WIND SPD.9 9 9 10 12 13 13 14 13 12 10 9
FORECASTER...13
REQUESTED BY...DAN SWANSON
TYPE OF REQUEST...PRESCRIBED
.TAG 2603100.0/UNR
.DELDT 02/18/26
.FORMATTERVERSION 2.0.0
.EMAIL KENN_PERREAULT@NPS.GOV,DAN_SWANSON@NPS.GOV
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