192
FNUS75 KBYZ 100935
FWSBYZ
SPOT FORECAST FOR HI LINE...USWFS
NATIONAL WEATHER SERVICE BILLINGS MT
335 AM MDT FRI APR 10 2026
FORECAST IS BASED ON IGNITION TIME OF 0700 MDT ON APRIL 11.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
PLEASE CONTACT OUR OFFICE IF YOU HAVE QUESTIONS
OR CONCERNS WITH THIS FORECAST.
DISCUSSION
WARM AND MOSTLY DRY CONDITIONS CAN BE EXPECTED OVER THE BURN SITE
ON SATURDAY WITH SOUTHWEST WINDS. A DISTURBANCE LIFTING THROUGH
THE REGION WILL BRING A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS
BEGINNING LATE SATURDAY AFTERNOON, WITH A CHANCE OF SHOWERS INTO
THE OVERNIGHT. THUNDERSTORMS WILL BE CAPABLE OF GUSTY AND ERRATIC
WINDS. STRONG MIXING CAN BE EXPECTED BOTH SATURDAY AND SUNDAY
AFTERNOONS. TEMPERATURES WILL BE A BIT COOLER, WITH RELATIVE
HUMIDITY A BIT HIGHER ON SUNDAY. MONDAY WILL BRING TEMPERATURES
INTO THE 60S, NORTHWEST WINDS AND MODERATE TO HIGH CHANCES FOR
PRECIPITATION. THE CWR SATURDAY THROUGH SUNDAY IS AROUND 15%,
WHILE MONDAY IS AROUND 40-50%. MODERATE TO GOOD RH RECOVERIES CAN
BE EXPECTED SATURDAY AND SUNDAY NIGHTS.
SATURDAY
SKY/WEATHER.........PARTLY CLOUDY. INCREASING CLOUDS IN THE AFTERNOON.
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS LATE IN
THE AFTERNOON.
CWR.................LESS THAN 10 PERCENT.
CHANCE OF LIGHTNING.15 PERCENT.
MAX TEMPERATURE.....76-80.
MIN HUMIDITY........17-23 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......SOUTHWEST WINDS 5 TO 10 MPH, WITH GUSTS TO 15
MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR
THUNDERSTORMS.
RIDGETOP...........SOUTHWEST AROUND 10 MPH.
MIXING HEIGHT.......INCREASING TO 11000 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 12 TO 18 MPH.
TIME (MDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........43 43 39 39 39 30 30 30 39 45 50
WEATHER COV..... SCH SCH
WEATHER TYPE.... RW RW
TSTM COV........ SCH SCH
CHC OF LTNG (%).0 0 0 0 0 10 10 10 10 15 15
TEMP............47 50 54 61 67 73 76 77 77 77 75
RH..............72 63 52 42 33 26 22 19 19 20 22
20 FT WIND DIR..SW SW SW SW SW SW SW SW SW SW SW
20 FT WIND SPD..7 7 7 7 7 8 8 8 7 7 7
20 FT WIND GUST.13 13 12 12 13 15 15 14 13 13 13
SATURDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS
IN THE EVENING. CHANCE OF RAIN SHOWERS.
CWR.................15 PERCENT.
CHANCE OF LIGHTNING.15 PERCENT.
MIN TEMPERATURE.....43-47.
MAX HUMIDITY........66-71 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......WEST WINDS 5 TO 10 MPH, WITH GUSTS TO 15 MPH.
GUSTY AND ERRATIC WINDS EXPECTED NEAR
THUNDERSTORMS.
RIDGETOP...........WEST TO NORTHWEST 6 TO 14 MPH.
MIXING HEIGHT.......DECREASING TO 100 FT AGL OVERNIGHT.
TRANSPORT WINDS.....WEST 8 TO 15 MPH.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........62 62 62 70 70 62 53 53 53 53 53 53
WEATHER COV.....CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC
WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW RW RW
TSTM COV........SCH SCH SCH
CHC OF LTNG (%).15 15 15 10 10 10 10 10 10 0 0 0
TEMP............72 68 62 57 55 54 53 51 50 48 47 46
RH..............27 36 45 54 59 61 63 65 67 68 69 69
20 FT WIND DIR..W W W NW NW NW W W W W W W
20 FT WIND SPD..7 7 6 6 6 6 7 7 7 8 8 8
20 FT WIND GUST.12 12 11 11 11 11 13 13 13 14 14 14
SUNDAY
SKY/WEATHER.........MOSTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS
LATE IN THE AFTERNOON.
CWR.................LESS THAN 10 PERCENT.
CHANCE OF LIGHTNING.5 PERCENT.
MAX TEMPERATURE.....67-71.
MIN HUMIDITY........24-30 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......WEST TO NORTHWEST WINDS 6 TO 12 MPH WITH GUSTS TO
20 MPH IN THE LATE MORNING AND AFTERNOON.
RIDGETOP...........WEST TO NORTHWEST 10 TO 20 MPH.
MIXING HEIGHT.......INCREASING TO 9000 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....WEST 15 TO 20 MPH.
TIME (MDT) 6 AM 9 AM NOON 3 PM
SKY (%).........28 13 18 20
WEATHER COV..... SCH
WEATHER TYPE....NONE NONE NONE RW
TSTM COV........
CHC OF LTNG (%).0 0 0 10
TEMP............46 52 65 69
RH..............67 54 35 26
20 FT WIND......W 8G16 W 10G18 W 11G20 W 8G17
FORECAST DAYS 3 THROUGH 5
MONDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS.
LOWS IN THE LOWER 40S. HIGHS IN THE MID 60S. NORTHWEST WINDS 6
TO 12 MPH WITH GUSTS UP TO 20 MPH IN THE AFTERNOON.
TUESDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER 50S.
NORTHWEST WINDS 5 TO 10 MPH.
WEDNESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS IN THE MID 30S.
HIGHS IN THE LOWER 60S. WEST WINDS 5 TO 10 MPH.
FORECASTER...PALMQUIST
REQUESTED BY...JARID GIBSON
TYPE OF REQUEST...PRESCRIBED
.TAG 2609200.1/BYZ
.DELDT 04/10/26
.FORMATTERVERSION 2.0.0
.EMAIL JGIBSON@BLM.GOV
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