122
FNUS75 KBYZ 191721
FWSBYZ
SPOT FORECAST FOR N BRIDGERS UNIT 13 RX...USFS
NATIONAL WEATHER SERVICE BILLINGS MT
1121 AM MDT THU MAR 19 2026
FORECAST IS BASED ON IGNITION TIME OF 0800 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
WARM, DRY AND BREEZY CONDITIONS CONTINUE INTO SATURDAY. A COLD
FRONT DROPPING THROUGH THE REGION SATURDAY AFTERNOON WILL BRING
RAIN/SNOW SHOWERS INTO SATURDAY NIGHT. THE CURRENT CHANCE OF
WETTING RAIN IS AROUND 30 PERCENT.
GENERALLY WARM AND DRY CONDITIONS WILL PREVAIL MONDAY INTO
TUESDAY WITH SOUTHWEST TO WEST WINDS. CURRENTLY THERE IS A SLIGHT
CHANCE OF SHOWERS TUESDAY AFTERNOON, ALONG WITH INCREASING WINDS
AS ANOTHER DISTURBANCE APPROACHES FROM THE WEST. AT THIS TIME,
THERE LOOKS TO BE A PERIOD OF INCREASED WINDS, FOLLOWED BY
MODERATE CHANCES FOR RAIN/SNOW AROUND THE MIDDLE OF NEXT WEEK.
MONDAY
SKY/WEATHER.........MOSTLY CLOUDY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....50-54.
MIN HUMIDITY........20-26 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS EARLY BECOMING SOUTHWEST 5 TO 10 MPH
WITH GUSTS UP TO 20 MPH IN THE AFTERNOON.
RIDGETOP...........SOUTHWEST TO WEST 15 TO 25 MPH.
MIXING HEIGHT.......INCREASING TO 5,000 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST TO WEST 15 TO 25 MPH.
TIME (MDT) 8 AM 11 AM 2 PM 5 PM
SKY (%).........74 71 66 77
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE
TSTM COV........
CHC OF LTNG (%).0 0 0 0
TEMP............39 45 50 50
RH..............40 31 24 26
20 FT WIND......SW 3G12 SW 5G15 SW 7G17 W 6G18
MONDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....35-40.
MAX HUMIDITY........47-52 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......WEST WINDS 5 TO 10 MPH WITH GUSTS TO AROUND 20
MPH IN THE EVENING BECOMING SOUTHWEST 5 TO 15
MPH OVERNIGHT.
RIDGETOP...........WEST 10 TO 20 MPH.
MIXING HEIGHT.......DECREASING TO 300 FT AGL OVERNIGHT.
TRANSPORT WINDS.....SOUTHWEST 10 TO 20 MPH.
TIME (MDT) 6 PM 9 PM MIDNGT 3 AM
SKY (%).........80 79 78 69
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE
TSTM COV........
CHC OF LTNG (%).0 0 0 0
TEMP............49 44 43 42
RH..............29 41 45 48
20 FT WIND......W 6G20 SW 5G17 S 4G14 S 5G15
TUESDAY
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS.
CWR.................LESS THAN 10 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....58-63.
MIN HUMIDITY........25-30 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......SOUTHWEST WINDS 5 TO 10 MPH WITH GUSTS TO
AROUND 20 MPH IN THE MORNING, INCREASING
TO 10 TO 20 MPH WITH GUSTS UP TO 30 MPH
IN THE AFTERNOON.
RIDGETOP...........WEST 15 TO 25 MPH IN THE MORNING BECOMING
SOUTHWEST 20 TO 35 MPH IN THE AFTERNOON.
MIXING HEIGHT.......INCREASING TO 7,000 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 10 TO 20 MPH INCREASING TO 20 TO 30
MPH IN THE AFTERNOON.
TIME (MDT) 6 AM 9 AM NOON 3 PM
SKY (%).........73 71 72 82
WEATHER COV.....S CHC S CHC S CHC S CHC
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR
TSTM COV........
CHC OF LTNG (%).0 0 0 0
TEMP............41 45 54 60
RH..............50 47 35 28
20 FT WIND......S 5G16 SW 6G20 SW 10G25 SW 11G29
FORECASTER...PALMQUIST
REQUESTED BY...NICK NELSON
TYPE OF REQUEST...PRESCRIBED
.TAG 2606578.0/BYZ
.DELDT 03/19/26
.FORMATTERVERSION 2.0.0
.EMAIL NICHOLAS.NELSON@USDA.GOV
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