991
FNUS75 KBYZ 211419
FWSBYZ
SPOT FORECAST FOR MARCH...WFS
NATIONAL WEATHER SERVICE BILLINGS MT
819 AM MDT SAT MAR 21 2026
FORECAST IS BASED ON FORECAST START TIME OF 0800 MDT ON MARCH 21.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
PLEASE CONTACT OUR OFFICE IF YOU HAVE QUESTIONS
OR CONCERNS WITH THIS FORECAST.
DISCUSSION
VERY WARM AND DRY CONDITIONS PREVAIL AT THE SITE INTO THIS
EVENING. A COLD FRONT WILL SHIFT WINDS TO THE NORTH-EAST THIS
AFTERNOON. THE LATEST FORECAST HAS THE THIS WIND SHIFT OCCURRING
BETWEEN 2PM AND 4PM. WINDS WILL INCREASE AS WELL, INTO THE 10S MPH
ALONG WITH GUSTS AROUND 25 MPH. MINIMUM RELATIVE HUMIDITY VALUES
WILL BE LOW, IN THE MID-UPPER TEENS TODAY. LIGHT RAIN SHOWERS ARE
POSSIBLE (20 TO 40%) OVERNIGHT, THOUGH THE CHANCE FOR A WETTING
RAIN IS LOW (AROUND 10%). TEMPERATURES WILL BE COOLER ON SUNDAY
THOUGH STILL ABOVE NORMAL, IN THE 50S TO 60F, ALONG WITH DRY
CONDITIONS AND WEST WINDS. MATOS
TODAY
SKY/WEATHER.........MOSTLY SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....74-78.
MIN HUMIDITY........15-20 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......SOUTHEAST WINDS 4 TO 7 MPH SHIFTING TO THE
NORTHEAST 8 TO 16 MPH WITH GUSTS TO AROUND
24 MPH IN THE AFTERNOON.
RIDGETOP...........SOUTHEAST AROUND 10 MPH, BECOMING NORTHEAST
15 TO 20 MPH WITH GUSTS TO 30 MPH IN THE
AFTERNOON.
MIXING HEIGHT.......INCREASING TO 6900 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHEAST AROUND 13 MPH.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS THROUGH
THE NIGHT.
CWR.................10 PERCENT.
MIN TEMPERATURE.....35-39.
MAX HUMIDITY........84-89 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......NORTH WINDS 8 TO 16 MPH WITH GUSTS TO AROUND 25
MPH BECOMING NORTHWEST 4 TO 7 MPH OVERNIGHT.
RIDGETOP...........NORTH 15 TO 20 MPH, BECOMING NORTHWEST AROUND 10
MPH OVERNIGHT.
MIXING HEIGHT.......DECREASING TO 1000 FT AGL OVERNIGHT.
TRANSPORT WINDS.....NORTH AROUND 15 MPH.
SUNDAY
SKY/WEATHER.........MOSTLY SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....56-60.
MIN HUMIDITY........16-21 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......WEST WINDS 6 TO 12 MPH. GUSTS UP TO 25 MPH IN
THE AFTERNOON.
RIDGETOP...........WEST AROUND 15 MPH, GUSTS UP TO 30 MPH IN THE
AFTERNOON.
MIXING HEIGHT.......INCREASING TO 7200 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....WEST AROUND 17 MPH.
FORECASTER...MATOS
REQUESTED BY...MICHELLE DAUENHAUER
TYPE OF REQUEST...WILDFIRE
.TAG 2606874.1/BYZ
.DELDT 03/21/26
.FORMATTERVERSION 2.0.0
.EMAIL MTMCC@FIRENET.GOV,RDWHITE@BLM.GOV
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