132
FNUS75 KBYZ 201548
FWSBYZ
SPOT FORECAST FOR N BRIDGERS UNIT 13...USFS
NATIONAL WEATHER SERVICE BILLINGS MT
948 AM MDT FRI MAR 20 2026
FORECAST IS BASED ON IGNITION TIME OF 0900 MDT ON MARCH 23.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
PLEASE CONTACT OUR OFFICE IF YOU HAVE QUESTIONS
OR CONCERNS WITH THIS FORECAST.
DISCUSSION
WITH THE COLD FRONT STILL EXPECTED TO MOVE THROUGH SATURDAY AFTERNOON,
THERE IS ABOUT A 45% CHANCE FOR A WETTING RAIN. WARM AND DRY CONDITIONS
WILL PREVAIL MONDAY AND TUESDAY, WITH A VERY LOW CWR FOR TUESDAY.
RIDGETOP WINDS WILL BEGIN TO INCREASE TUESDAY EVENING TO 45-60 MPH. THE
CHANCES FOR STRONG WINDS WILL INCREASE WEDNESDAY WITH ABOUT A 60% CHANCE
FOR GUSTS TO 60 MPH. ALTHOUGH THERE IS STILL UNCERTAINTY IN TIMING, THERE
ARE SIGNALS FOR A POTENTIAL SYSTEM AND FRONTAL PASSAGE MOVING THROUGH
SOMETIME LATE WEDNESDAY INTO EARLY THURSDAY.
MONDAY
SKY/WEATHER.........MOSTLY CLOUDY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.1 PERCENT.
MAX TEMPERATURE.....50-54.
MIN HUMIDITY........20-24 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS BECOMING WEST 5 TO 7 MPH WITH GUSTS
TO AROUND 23 MPH IN THE AFTERNOON.
RIDGETOP...........WEST AROUND 20 MPH.
MIXING HEIGHT.......INCREASING TO 3500 FT AGL IN THE EARLY AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 7 TO 15 MPH SHIFTING TO THE WEST
AROUND 17 MPH LATE IN THE AFTERNOON.
TIME (MDT) 9AM 12P 3PM
SKY (%).........71 71 79
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF LTNG (%).0 0 0
TEMP............39 48 52
RH..............35 26 22
20 FT WIND......S 5G12 W 7G16 W 8G20
MONDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.3 PERCENT.
MIN TEMPERATURE.....34-38.
MAX HUMIDITY........53-57 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......WEST WINDS 7 TO 10 MPH WITH GUSTS TO AROUND 20
MPH EARLY IN THE EVENING BECOMING LIGHT.
RIDGETOP...........WEST 15 TO 20 MPH.
MIXING HEIGHT.......DECREASING TO 300 FT AGL OVERNIGHT.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
TIME (MDT) 6PM 9 PM MID 3 AM
SKY (%).........72 71 76 69
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF LTNG (%).0 0 0 0
TEMP............50 44 41 39
RH..............24 40 48 54
20 FT WIND......W 8G20 W 7G16 SW 6G13 S 6G13
TUESDAY
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS IN
THE AFTERNOON.
CWR.................5 PERCENT.
CHANCE OF LIGHTNING.2 PERCENT.
MAX TEMPERATURE.....55-59.
MIN HUMIDITY........28-32 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS BECOMING SOUTHWEST UP TO 10 MPH
WITH GUSTS TO AROUND 26 MPH IN THE LATE MORNING
AND AFTERNOON.
RIDGETOP...........SOUTHWEST 20 TO 30 MPH.
MIXING HEIGHT.......INCREASING TO 7000 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST AT 10 TO 20 MPH IN THE MORNING INCREASING
TO 30 TO 40 MPH IN THE AFTERNOON.
TIME (MDT) 6 AM 9 AM NOON 3 PM
SKY (%).........69 70 68 77
WEATHER COV..... S CHC S CHC
WEATHER TYPE....NONE NONE RNSHWR RNSHWR
TSTM COV........
CHC OF LTNG (%).0 0 0 0
TEMP............38 42 53 57
RH..............54 51 33 30
20 FT WIND......S 4G13 S 5G16 SW 6G19 SW 10G26
FORECASTER...STETZER
REQUESTED BY...NICK NELSON
TYPE OF REQUEST...PRESCRIBED
.TAG 2606788.0/BYZ
.DELDT 03/20/26
.FORMATTERVERSION 2.0.0
.EMAIL NICHOLAS.NELSON@USDA.GOV
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