420
FNUS75 KBYZ 052105
FWSBYZ
SPOT FORECAST FOR GRIFFIN...DOI
NATIONAL WEATHER SERVICE BILLINGS MT
305 PM MDT WED AUG 5 2026
FORECAST IS BASED ON FORECAST START TIME OF 1600 MDT ON AUGUST 05.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
PLEASE CONTACT OUR OFFICE IF YOU HAVE QUESTIONS
OR CONCERNS WITH THIS FORECAST.
DISCUSSION
HOT AND EXTREMELY DRY CONDITIONS ARE EXPECTED. RELATIVE
HUMIDITIES ARE ONLY EXPECTED TO RECOVER INTO THE 40S% TONIGHT.
MINIMUM RELATIVE HUMIDITY VALUES TOMORROW ARE EXPECTED TO BE
SIMILAR TO TODAY, POTENTIALLY IN THE SINGLE DIGITS. WINDS WILL BE
STRONGER THURSDAY AS A SHORT LIVED COLD FRONT MOVES THROUGH.
TORGERSON
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY. PATCHY SMOKE.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....86-90.
MIN HUMIDITY........9-13 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......NORTHWEST WINDS 14 TO 18 MPH WITH GUSTS TO 30 MPH.
RIDGETOP...........NORTHWEST AROUND 30 MPH.
MIXING HEIGHT.......INCREASING TO 10100 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHWEST AROUND 25 MPH.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....52-56.
MAX HUMIDITY........45-49 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS.
RIDGETOP...........NORTHWEST BECOMING SOUTHWEST AROUND 10 MPH.
MIXING HEIGHT.......DECREASING TO 500 FT AGL OVERNIGHT.
TRANSPORT WINDS.....NORTHWEST BECOMING SOUTHWEST AROUND 9 MPH.
THURSDAY
SKY/WEATHER.........PARTLY SUNNY. PATCHY SMOKE.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....90-94.
MIN HUMIDITY........7-11 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......SOUTHWEST SHIFTING TO THE NORTHWEST 14 TO 18 MPH
WITH GUSTS TO AROUND 25 MPH IN THE AFTERNOON.
RIDGETOP...........SOUTHWEST BECOMING NORTHWEST AROUND 25 MPH.
MIXING HEIGHT.......INCREASING TO 10000 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST BECOMING NORTHWEST AROUND 23 MPH.
FORECASTER...TORGERSON
REQUESTED BY...JONATHAN MANTELLO
TYPE OF REQUEST...WILDFIRE
.TAG 2618924.2/BYZ
.DELDT 08/05/26
.FORMATTERVERSION 2.0.0
.EMAIL MTMCC@FIRENET.GOV
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