458
FNUS75 KBYZ 050021
FWSBYZ
SPOT FORECAST FOR LYON...BLM
NATIONAL WEATHER SERVICE BILLINGS MT
621 PM MDT TUE AUG 4 2026
FORECAST IS BASED ON FORECAST START TIME OF 1800 MDT ON AUGUST 04.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
PLEASE CONTACT OUR OFFICE IF YOU HAVE QUESTIONS
OR CONCERNS WITH THIS FORECAST.
DISCUSSION
TEMPERATURES IN THE 80S F WEDNESDAY INCREASE INTO THE 90S F FOR
THURSDAY. DRY CONDITIONS ARE EXPECTED THROUGHOUT THE PERIOD WITH
ONLY A SLIGHT CHANCE OF THUNDER TONIGHT. SINGLE DIGIT RELATIVE
HUMIDITY VALUES ARE POSSIBLE FRIDAY. NO STRONG WINDS FORECAST.
TORGERSON
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.14 PERCENT.
MIN TEMPERATURE.....48-52.
MAX HUMIDITY........51-55 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......NORTH BECOMING SOUTHEAST 5 TO 10 MPH.
RIDGETOP...........NORTH BECOMING SOUTHEAST 10 MPH.
MIXING HEIGHT.......DECREASING TO 500 FT AGL OVERNIGHT.
TRANSPORT WINDS.....NORTH BECOMING SOUTHEAST 10 MPH.
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY. PATCHY SMOKE.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....83-87.
MIN HUMIDITY........11-15 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......SOUTHEAST WINDS SHIFTING TO THE
NORTHWEST 6 TO 10 MPH GUSTING TO 18 MPH IN THE
AFTERNOON.
RIDGETOP...........SOUTHEAST BECOMING NORTHWEST AROUND 18 MPH.
MIXING HEIGHT.......INCREASING TO 10500 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHEAST BECOMING NORTHWEST AROUND 17 MPH.
WEDNESDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR. PATCHY SMOKE.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....53-57.
MAX HUMIDITY........45-49 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......NORTHWEST BECOMING SOUTH 4 TO 8 MPH.
RIDGETOP...........NORTHWEST BECOMING SOUTH AROUND 10 MPH.
MIXING HEIGHT.......DECREASING TO 500 FT AGL OVERNIGHT.
TRANSPORT WINDS.....NORTHWEST BECOMING SOUTH AROUND 10 MPH.
THURSDAY
SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....90-94.
MIN HUMIDITY........8-12 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......SOUTH BECOMING NORTHWEST 10 TO 14 MPH WITH
GUSTS TO AROUND 22 MPH IN THE AFTERNOON.
RIDGETOP...........SOUTH BECOMING NORTHWEST AROUND 25 MPH.
MIXING HEIGHT.......INCREASING TO 11200 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTH BECOMING NORTHWEST AROUND 22 MPH.
FORECASTER...TORGERSON
REQUESTED BY...GINGY SMITH
TYPE OF REQUEST...WILDFIRE
.TAG 2618984.0/BYZ
.DELDT 08/04/26
.FORMATTERVERSION 2.0.0
.EMAIL MTMCC@FIRENET.GOV
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