552
FNUS75 KBYZ 101223
FWSBYZ
SPOT FORECAST FOR ELK CREEK/ COAL CREEK PILES...USFS
NATIONAL WEATHER SERVICE BILLINGS MT
523 AM MST WED DEC 10 2025
FORECAST IS BASED ON IGNITION TIME OF 0800 MST ON DECEMBER 11.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
PLEASE CONTACT OUR OFFICE IF YOU HAVE QUESTIONS
OR CONCERNS WITH THIS FORECAST.
DISCUSSION
AHEAD OF A COLD FRONT, THURSDAY AFTERNOON WILL BE BREEZY WITH GUSTS
AROUND 30 TO 40 MPH. DURING THE AFTERNOON AND EVENING HOURS, THERE
IS A 20% CHANCE OF A GUST GREATER THAN 50 MPH. PRECIPITATION BEGINS
AS RAIN THURSDAY AFTERNOON BEFORE BECOMING ALL SNOW THURSDAY
EVENING. TEMPERATURES WILL QUICKLY DROP BELOW FREEZING THURSDAY
EVENING AND WILL CAUSE WET SURFACES TO QUICKLY BECOME ICY. SEVERAL
INCHES OF SNOW MAY ACCUMULATE THURSDAY EVENING THROUGH SATURDAY
MORNING.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS IN THE
AFTERNOON. SNOW LIKELY IN THE EVENING.
CWR.................30 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....46-50.
MIN HUMIDITY........52-56 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......WEST WINDS 6 TO 12 MPH IN THE MORNING BECOMING
NORTHWEST 10 TO 20 WITH GUSTS TO 30 TO 40 MPH
IN THE AFTERNOON.
RIDGETOP...........NORTHWEST AROUND 30 TO 40 MPH.
MIXING HEIGHT.......INCREASING TO 2300 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHWEST 20 TO 30 MPH.
TIME (MST) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
WEATHER COV..... CHC CHC CHC CHC CHC CHC LKY
WEATHER TYPE.... RW RW RW RW RW RW SN
TEMP............43 47 48 49 50 49 47 45 42 39
RH..............64 57 55 56 60 66 72 79 86 91
20 FT WIND DIR..W W W NW NW NW NW NW NW NW
20 FT WIND SPD..10 12 12 13 15 18 20 18 16 16
20 FT WIND GUST.18 20 20 25 30 36 38 32 30 30
THURSDAY NIGHT
SKY/WEATHER.........CLOUDY. SNOW LIKELY.
CWR.................60 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....12-16.
MAX HUMIDITY........89-93 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......NORTHWEST WINDS 10 TO 18 MPH WITH GUST TO 25 TO
35 MPH IN THE EVENING BECOMING LIGHT OVERNIGHT.
RIDGETOP...........NORTHWEST AROUND 25 TO 35 MPH BECOMING NORTH
AROUND 10 TO 20 MPH EARLY IN THE MORNING.
MIXING HEIGHT.......DECREASING TO 1100 FT AGL OVERNIGHT.
TRANSPORT WINDS.....NORTHWEST 10 TO 20 MPH.
TIME (MST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
WEATHER COV.....LKY LKY LKY LKY LKY LKY LKY LKY LKY LKY LKY LKY
WEATHER TYPE....SN SN SN SN SN SN SN SN SN SN SN SN
TEMP............34 30 28 26 24 23 22 20 19 18 17 16
RH..............93 93 91 87 82 79 79 79 80 82 84 87
20 FT WIND DIR..NW NW NW NW NW N N N N N N N
20 FT WIND SPD..16 14 11 11 11 9 9 9 8 8 8 6
20 FT WIND GUST.28 25 18 18 18 14 14 14 11 11 11 10
FRIDAY
SKY/WEATHER.........CLOUDY. SNOW LIKELY, THEN CHANCE OF SNOW LATE
IN THE AFTERNOON.
CWR.................50 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....15-19.
MIN HUMIDITY........80-84 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......NORTHEAST WINDS UP TO 6 MPH.
RIDGETOP...........NORTHEAST AROUND 5 TO 15 MPH.
MIXING HEIGHT.......INCREASING TO 1500 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHEAST 5 TO 15 MPH.
TIME (MST) 6 AM 9 AM NOON 3 PM
WEATHER COV.....LIKELY LIKELY LIKELY LIKELY
WEATHER TYPE....SNOW SNOW SNOW SNOW
TEMP............18 16 16 17
RH..............88 87 82 83
20 FT WIND......N 6G11 N 6G10 NE 5G8 E 5G8
FORECASTER...ARCHER
REQUESTED BY...ASHLAND RANGER STATION
TYPE OF REQUEST...PRESCRIBED
.TAG 2527323.0/BYZ
.DELDT 12/10/25
.FORMATTERVERSION 2.0.0
.EMAIL CODY.PHILLIPS2@USDA.GOV
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