233
FNUS75 KBYZ 110957
FWSBYZ
SPOT FORECAST FOR HI LINE...USWFS
NATIONAL WEATHER SERVICE BILLINGS MT
357 AM MDT SAT APR 11 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 DRY CONDITIONS WILL PREVAIL AT THE BURN SITE FOR MOST OF
TODAY WITH SOUTHWEST WINDS. WITH STRONG MIXING, WIND GUSTS UP TO
20 MPH ARE POSSIBLE THIS AFTERNOON. A DISTURBANCE LIFTING THROUGH
THE REGION WILL BRING A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS
BEGINNING AFTER 1500 MDT TODAY, WITH A CHANCE OF SHOWERS INTO THE
OVERNIGHT. THUNDERSTORMS WILL BE CAPABLE OF GUSTY AND ERRATIC
WINDS TO 40 MPH. TEMPERATURES WILL BE A BIT COOLER, WITH RELATIVE
HUMIDITY A BIT HIGHER ON SUNDAY. STRONG MIXING CAN BE EXPECTED AS
WELL. SHOWER CHANCES RETURN BY SUNDAY EVENING AS ANOTHER
DISTURBANCE LIFTS INTO THE REGION. MONDAY WILL BRING TEMPERATURES
INTO THE 60S, NORTHWEST WINDS AND MODERATE TO HIGH CHANCES FOR
PRECIPITATION. THE CWR TODAY INTO TONIGHT REMAINS AROUND 15%,
WHILE SUNDAY NIGHT THROUGH MONDAY IS AROUND 30-40%. MODERATE TO
GOOD RH RECOVERIES CAN BE EXPECTED TONIGHT AND SUNDAY NIGHT.
TODAY
SKY/WEATHER.........MOSTLY SUNNY. INCREASING CLOUDS IN THE AFTERNOON.
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS AFTER
1500 MDT.
CWR.................LESS THAN 10 PERCENT.
CHANCE OF LIGHTNING.15 PERCENT LATE IN THE AFTERNOON.
MAX TEMPERATURE.....76-80.
MIN HUMIDITY........17-23 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......SOUTHWEST TO WEST WINDS 5 TO 12 MPH. GUSTS UP
TO 20 MPH IN THE AFTERNOON. GUSTY AND ERRATIC
WINDS EXPECTED NEAR THUNDERSTORMS.
RIDGETOP...........SOUTHWEST TO WEST 8 TO 16 MPH.
MIXING HEIGHT.......INCREASING TO 11000 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 10 TO 20 MPH.
TIME (MDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........30 35 33 20 33 32 33 40 48 55 55
WEATHER COV..... SCH SCH
WEATHER TYPE.... RW RW
TSTM COV........ SCH SCH
CHC OF LTNG (%).0 0 0 0 0 0 0 0 10 15 15
TEMP............45 49 54 63 69 75 76 76 77 76 75
RH..............70 63 50 38 30 23 20 19 18 18 20
20 FT WIND DIR..S SW SW SW SW SW SW SW SW W W
20 FT WIND SPD..9 9 9 10 10 11 12 12 12 12 12
20 FT WIND GUST.13 13 13 14 14 16 18 18 19 17 17
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
SLIGHT CHANCE OF THUNDERSTORMS EARLY IN THE
EVENING. CHANCE OF RAIN SHOWERS IN THE EVENING.
CWR.................15 PERCENT.
CHANCE OF LIGHTNING.15 PERCENT IN THE EVENING.
MIN TEMPERATURE.....42-46.
MAX HUMIDITY........66-72 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......WEST WINDS 5 TO 12 MPH, WITH GUSTS TO 16 MPH.
GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS.
RIDGETOP...........WEST 10 TO 16 MPH.
MIXING HEIGHT.......DECREASING TO 200 FT AGL OVERNIGHT.
TRANSPORT WINDS.....WEST 10 TO 18 MPH.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........55 60 71 65 68 57 62 43 44 36 17 14
WEATHER COV.....CHC CHC CHC CHC CHC CHC SCH
WEATHER TYPE....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............74 67 63 60 58 56 54 53 51 50 47 46
RH..............21 29 36 43 47 53 58 62 65 66 70 71
20 FT WIND DIR..W W W W W W W W W W W W
20 FT WIND SPD..11 10 9 9 10 11 11 10 9 9 10 12
20 FT WIND GUST.16 14 14 13 14 14 16 14 14 14 14 16
SUNDAY
SKY/WEATHER.........MOSTLY SUNNY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.5 PERCENT.
MAX TEMPERATURE.....68-72.
MIN HUMIDITY........24-29 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......NORTHWEST WINDS 6 TO 12 MPH WITH GUSTS UP TO 20 MPH
IN THE MORNING, BECOMING NORTH TO NORTHEAST LATE
IN THE AFTERNOON.
RIDGETOP...........NORTHWEST 10 TO 20 MPH IN THE MORNING, BECOMING
NORTH TO NORTHEAST 8 TO 16 MPH LATE IN THE AFTERNOON.
MIXING HEIGHT.......INCREASING TO 8500 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....WEST TO NORTHWEST 15 TO 20 MPH.
TIME (MDT) 6 AM 9 AM NOON 3 PM
SKY (%).........15 10 7 17
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE
TSTM COV........
CHC OF LTNG (%).0 0 0 0
TEMP............46 52 63 69
RH..............71 57 38 28
20 FT WIND......W 12G18 NW 11G18 NW 9G16 N 7G14
FORECAST DAYS 3 THROUGH 5
MONDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS.
LOWS AROUND 40. 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. LOWS IN THE UPPER 30S. HIGHS
AROUND 60. NORTHWEST WINDS 6 TO 12 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE MID 60S.
WEST WINDS 5 TO 10 MPH.
FORECASTER...PALMQUIST
REQUESTED BY...JARID GIBSON
TYPE OF REQUEST...PRESCRIBED
.TAG 2609200.2/BYZ
.DELDT 04/11/26
.FORMATTERVERSION 2.0.0
.EMAIL JGIBSON@BLM.GOV,JARID.G7@GMAIL.COM
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