149
FNUS55 KTFX 171954
FWFTFX
FIRE WEATHER PLANNING FORECAST FOR NORTH-CENTRAL MONTANA
NATIONAL WEATHER SERVICE GREAT FALLS MT
154 PM MDT WED SEP 17 2025
DISCUSSION
A WARMING AND DRYING TREND IS EXPECTED THROUGH SATURDAY WITH
AFTERNOON CUMULUS BUILDUP DECREASING THIS EVENING TO MAINLY CLEAR
SKIES OVERNIGHT. WINDS REMAIN RELATIVELY LIGHT FROM THE EAST TO
SOUTHEAST ON THE PLAINS OR TERRAIN-DRIVEN ELSEWHERE THROUGH FRIDAY
WITH SOUTHWEST TO WEST WINDS DEVELOPING SATURDAY. WINDY
CONDITIONS MAY DEVELOP LATE THIS WEEKEND AS A COLD FRONT MOVES
ACROSS THE NORTHERN ROCKIES. HOENISCH
MTZ112-181030-
EASTERN GLACIER/TOOLE/CENTRAL/EASTERN PONDERA/LIBERTY-
154 PM MDT WED SEP 17 2025
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......43-48.
24 HR TREND......UNCHANGED.
* MAX HUMIDITY..........73-83 PERCENT...61-71 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......4 PERCENT DOWN...29 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHEAST WINDS 10 TO 15 MPH.
RIDGES.............SOUTHEAST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........5500 FT AGL DECREASING TO 500-1000 FT AGL.
* TRANSPORT WINDS.......SOUTHEAST 15 TO 20 MPH.
* CWR...................0 PERCENT.
THURSDAY
* SKY/WEATHER...........SUNNY.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......75-80...67-74 HIGHER ELEVATIONS.
24 HR TREND......1 DEGREE UP.
* MIN HUMIDITY..........29-36 PERCENT.
24 HR TREND......UNCHANGED.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHEAST WINDS 10 TO 15 MPH.
RIDGES.............SOUTHEAST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........500-1500 FT AGL INCREASING TO 6000-7000 FT
AGL.
* TRANSPORT WINDS.......SOUTHEAST 10 TO 15 MPH.
* CWR...................0 PERCENT.
THURSDAY NIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......44-49.
24 HR TREND......1 DEGREE DOWN.
* MAX HUMIDITY..........77-87 PERCENT...62-72 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......1 PERCENT DOWN...6 PERCENT UP HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHEAST WINDS 10 TO 15 MPH.
RIDGES.............SOUTHEAST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........4000-5500 FT AGL DECREASING TO 500-2000 FT
AGL EARLY IN THE EVENING.
* TRANSPORT WINDS.......SOUTHEAST 15 TO 20 MPH.
* CWR...................0 PERCENT.
FRIDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......74-79...67-72 HIGHER ELEVATIONS.
24 HR TREND......1 DEGREE DOWN.
* MIN HUMIDITY..........31-38 PERCENT.
24 HR TREND......2 PERCENT UP...7 PERCENT UP HIGHER ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTH WINDS 5 TO 10 MPH.
RIDGES.............SOUTH WINDS 5 TO 10 MPH.
* MIXING HEIGHT.........500-2000 FT AGL INCREASING TO 8500 FT AGL.
* TRANSPORT WINDS.......SOUTH 15 TO 20 MPH SHIFTING TO THE
SOUTHWEST IN THE AFTERNOON.
* CWR...................0 PERCENT.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE
UPPER 70S. SOUTHWEST WINDS 15 TO 20 MPH.
SUNDAY
WINDY. PARTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS IN
THE LOWER 70S. WEST WINDS AROUND 30 MPH.
MONDAY
WINDY. MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE
LOWER 70S. WEST WINDS AROUND 25 MPH.
TUESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE
UPPER 70S.
WEDNESDAY
PARTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS IN THE
LOWER 70S.
MTZ113-181030-
HILL AND BLAINE COUNTIES-
154 PM MDT WED SEP 17 2025
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......44-50.
24 HR TREND......3 DEGREES UP.
* MAX HUMIDITY..........83-93 PERCENT.
24 HR TREND......13 PERCENT UP.
* WIND (20 FT).
LOWER ELEVATIONS...EAST WINDS 10 TO 15 MPH.
RIDGES.............EAST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........5500 FT AGL DECREASING TO 500-1000 FT AGL.
* TRANSPORT WINDS.......EAST 15 TO 20 MPH.
* CWR...................0 PERCENT.
THURSDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......72-77...66-71 HIGHER ELEVATIONS.
24 HR TREND......1 DEGREE UP.
* MIN HUMIDITY..........38-48 PERCENT.
24 HR TREND......9 PERCENT UP...4 PERCENT UP HIGHER ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHEAST WINDS 10 TO 15 MPH.
RIDGES.............SOUTHEAST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........500-1500 FT AGL INCREASING TO 5000-6500 FT
AGL.
* TRANSPORT WINDS.......SOUTHEAST 15 TO 20 MPH.
* CWR...................0 PERCENT.
THURSDAY NIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......44-50.
24 HR TREND......1 DEGREE DOWN.
* MAX HUMIDITY..........87-97 PERCENT.
24 HR TREND......UNCHANGED...6 PERCENT UP HIGHER ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHEAST WINDS 10 TO 15 MPH.
RIDGES.............SOUTHEAST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........3500-5000 FT AGL DECREASING TO 500-2000 FT
AGL EARLY IN THE EVENING.
* TRANSPORT WINDS.......SOUTHEAST 20 TO 25 MPH.
* CWR...................0 PERCENT.
FRIDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......74-79...67-72 HIGHER ELEVATIONS.
24 HR TREND......UNCHANGED.
* MIN HUMIDITY..........36-46 PERCENT.
24 HR TREND......1 PERCENT DOWN.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHEAST WINDS 10 TO 15 MPH.
RIDGES.............SOUTHEAST WINDS 5 TO 10 MPH.
* MIXING HEIGHT.........1000-2500 FT AGL INCREASING TO 3500-4500 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS.......SOUTHEAST 10 TO 15 MPH.
* CWR...................0 PERCENT.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS AROUND 80.
SOUTH WINDS 10 TO 15 MPH.
SUNDAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER
70S. SOUTHWEST WINDS 20 TO 25 MPH.
MONDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE MID
70S. WEST WINDS 20 TO 25 MPH.
TUESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS AROUND 80.
WEDNESDAY
PARTLY CLOUDY. LOWS AROUND 50. HIGHS IN THE MID 70S.
MTZ114-181030-
LEWIS AND CLARK NATIONAL FOREST ROCKY MOUNTAIN DISTRICT-
ROCKY MOUNTAIN FRONT-
154 PM MDT WED SEP 17 2025
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......43-50.
24 HR TREND......2 DEGREES UP.
* MAX HUMIDITY..........70-80 PERCENT...61-71 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......14 PERCENT DOWN...23 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHEAST WINDS AROUND 5 MPH SHIFTING TO
THE SOUTHWEST AFTER MIDNIGHT.
RIDGES.............SOUTH WINDS 5 TO 10 MPH.
* MIXING HEIGHT.........5500 FT AGL DECREASING TO 1000-1500 FT AGL.
* TRANSPORT WINDS.......SOUTHEAST 15 TO 20 MPH SHIFTING TO THE
SOUTHWEST AFTER MIDNIGHT.
* CWR...................0 PERCENT.
THURSDAY
* SKY/WEATHER...........SUNNY.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......76-81...63-73 HIGHER ELEVATIONS.
24 HR TREND......3 DEGREES UP.
* MIN HUMIDITY..........26-33 PERCENT.
24 HR TREND......1 PERCENT DOWN...8 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHWEST WINDS AROUND 5 MPH SHIFTING TO
THE SOUTHEAST IN THE AFTERNOON.
RIDGES.............WEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........1000-2000 FT AGL INCREASING TO 7000-8000 FT
AGL.
* TRANSPORT WINDS.......SOUTHWEST 15 TO 20 MPH SHIFTING TO THE
NORTHWEST IN THE AFTERNOON.
* CWR...................0 PERCENT.
THURSDAY NIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......44-51.
24 HR TREND......UNCHANGED.
* MAX HUMIDITY..........66-76 PERCENT...56-66 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......8 PERCENT DOWN.
* WIND (20 FT).
LOWER ELEVATIONS...EAST WINDS AROUND 5 MPH SHIFTING TO THE
SOUTHWEST AFTER MIDNIGHT.
RIDGES.............NORTHWEST WINDS 10 TO 15 MPH SHIFTING TO
THE WEST AFTER MIDNIGHT.
* MIXING HEIGHT.........4000-5500 FT AGL DECREASING TO 500-2000 FT
AGL EARLY IN THE EVENING.
* TRANSPORT WINDS.......EAST 15 TO 20 MPH SHIFTING TO THE SOUTHWEST
AFTER MIDNIGHT.
* CWR...................0 PERCENT.
FRIDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......75-80...63-73 HIGHER ELEVATIONS.
24 HR TREND......UNCHANGED.
* MIN HUMIDITY..........25-35 PERCENT.
24 HR TREND......1 PERCENT DOWN.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHWEST WINDS 5 TO 10 MPH.
RIDGES.............SOUTHWEST WINDS 5 TO 10 MPH.
* MIXING HEIGHT.........500-1000 FT AGL INCREASING TO 8000-9500 FT
AGL.
* TRANSPORT WINDS.......SOUTHWEST 15 TO 20 MPH.
* CWR...................0 PERCENT.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE MID
70S. WEST WINDS 20 TO 25 MPH.
SUNDAY
WINDY. PARTLY CLOUDY. SLIGHT CHANCE OF RAIN. LOWS IN
THE LOWER 50S. HIGHS IN THE UPPER 60S. SOUTHWEST WINDS AROUND
30 MPH.
MONDAY
WINDY. MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE
LOWER 70S. SOUTHWEST WINDS AROUND 30 MPH.
TUESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE
UPPER 70S.
WEDNESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF RAIN. LOWS IN THE
UPPER 40S. HIGHS IN THE LOWER 70S.
MTZ115-181030-
CHOUTEAU AND FERGUS COUNTIES-
154 PM MDT WED SEP 17 2025
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......45-51.
24 HR TREND......3 DEGREES DOWN.
* MAX HUMIDITY..........76-86 PERCENT.
24 HR TREND......3 PERCENT DOWN...24 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHEAST WINDS 10 TO 15 MPH.
RIDGES.............SOUTHEAST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........6500 FT AGL DECREASING TO 500-1500 FT AGL.
* TRANSPORT WINDS.......SOUTHEAST 15 TO 20 MPH.
* CWR...................0 PERCENT.
THURSDAY
* SKY/WEATHER...........SUNNY.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......74-80...66-72 HIGHER ELEVATIONS.
24 HR TREND......1 DEGREE UP.
* MIN HUMIDITY..........32-41 PERCENT.
24 HR TREND......UNCHANGED...7 PERCENT DOWN HIGHER ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHEAST WINDS 10 TO 15 MPH.
RIDGES.............SOUTHEAST WINDS 5 TO 10 MPH.
* MIXING HEIGHT.........500-2000 FT AGL INCREASING TO 6000-7000 FT
AGL.
* TRANSPORT WINDS.......SOUTHEAST 15 TO 20 MPH.
* CWR...................0 PERCENT.
THURSDAY NIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......45-51.
24 HR TREND......UNCHANGED.
* MAX HUMIDITY..........79-89 PERCENT.
24 HR TREND......3 PERCENT UP...14 PERCENT UP HIGHER ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHEAST WINDS 10 TO 15 MPH.
RIDGES.............SOUTHEAST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........4000-5500 FT AGL DECREASING TO 500-2000 FT
AGL EARLY IN THE EVENING.
* TRANSPORT WINDS.......SOUTHEAST 20 TO 25 MPH.
* CWR...................0 PERCENT.
FRIDAY
* SKY/WEATHER...........SUNNY.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......75-80...67-74 HIGHER ELEVATIONS.
24 HR TREND......2 DEGREES UP.
* MIN HUMIDITY..........30-38 PERCENT.
24 HR TREND......UNCHANGED...7 PERCENT DOWN HIGHER ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHEAST WINDS AROUND 5 MPH.
RIDGES.............SOUTH WINDS AROUND 5 MPH SHIFTING TO THE
NORTHEAST IN THE AFTERNOON.
* MIXING HEIGHT.........1000-2500 FT AGL INCREASING TO 5000-6500 FT
AGL.
* TRANSPORT WINDS.......SOUTHEAST 10 TO 15 MPH SHIFTING TO THE WEST
IN THE AFTERNOON.
* CWR...................0 PERCENT.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
MOSTLY CLEAR. LOWS AROUND 50. HIGHS IN THE LOWER 80S.
SOUTHWEST WINDS 10 TO 15 MPH.
SUNDAY
MOSTLY CLEAR. LOWS IN THE MID 50S. HIGHS IN THE UPPER
70S. WEST WINDS 20 TO 25 MPH.
MONDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER
70S. WEST WINDS 20 TO 25 MPH.
TUESDAY
MOSTLY CLEAR. LOWS AROUND 50. HIGHS IN THE LOWER 80S.
WEDNESDAY
PARTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS IN THE
UPPER 70S.
MTZ116-118-181030-
LINCOLN RANGER DISTRICT OF THE HELENA NATIONAL FOREST-
HELENA AND TOWNSEND RANGER DISTRICTS OF THE HELENA NATIONAL
FOREST-
154 PM MDT WED SEP 17 2025
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......42-50.
24 HR TREND......3 DEGREES UP.
* MAX HUMIDITY..........72-82 PERCENT...62-72 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......33 PERCENT DOWN.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHEAST WINDS 10 TO 15 MPH.
RIDGES.............SOUTHEAST WINDS 10 TO 15 MPH SHIFTING TO
THE SOUTH AFTER MIDNIGHT.
* MIXING HEIGHT.........5500 FT AGL DECREASING TO 1000-2000 FT AGL.
* TRANSPORT WINDS.......SOUTHEAST 10 TO 15 MPH.
* CWR...................0 PERCENT.
THURSDAY
* SKY/WEATHER...........SUNNY.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......72-80...63-73 HIGHER ELEVATIONS.
24 HR TREND......6 DEGREES UP.
* MIN HUMIDITY..........24-32 PERCENT.
24 HR TREND......15 PERCENT DOWN...10 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTH WINDS 5 TO 10 MPH.
RIDGES.............SOUTHWEST WINDS 10 TO 15 MPH DECREASING TO
AROUND 5 MPH IN THE AFTERNOON.
* MIXING HEIGHT.........1000-2000 FT AGL INCREASING TO 5500-7000 FT
AGL.
* TRANSPORT WINDS.......SOUTHWEST 15 TO 20 MPH SHIFTING TO THE WEST
IN THE AFTERNOON.
* CWR...................0 PERCENT.
THURSDAY NIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......43-51.
24 HR TREND......2 DEGREES UP.
* MAX HUMIDITY..........56-66 PERCENT.
24 HR TREND......22 PERCENT DOWN...9 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...NORTHEAST WINDS AROUND 5 MPH SHIFTING TO
THE SOUTH AFTER MIDNIGHT.
RIDGES.............NORTH WINDS AROUND 5 MPH SHIFTING TO THE
SOUTHWEST AFTER MIDNIGHT.
* MIXING HEIGHT.........4000-5500 FT AGL DECREASING TO 1000-2000 FT
AGL EARLY IN THE EVENING.
* TRANSPORT WINDS.......NORTH 10 TO 15 MPH SHIFTING TO THE SOUTH
AFTER MIDNIGHT.
* CWR...................0 PERCENT.
FRIDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......74-80...64-73 HIGHER ELEVATIONS.
24 HR TREND......1 DEGREE DOWN.
* MIN HUMIDITY..........23-31 PERCENT.
24 HR TREND......UNCHANGED.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHWEST WINDS 5 TO 10 MPH.
RIDGES.............SOUTHWEST WINDS 10 TO 15 MPH SHIFTING TO
THE WEST IN THE AFTERNOON.
* MIXING HEIGHT.........1000-2000 FT AGL INCREASING TO 8500-10000
FT AGL.
* TRANSPORT WINDS.......SOUTH 10 TO 15 MPH INCREASING TO WEST 20 TO
25 MPH IN THE AFTERNOON.
* CWR...................0 PERCENT.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE MID
70S. SOUTHWEST WINDS 10 TO 15 MPH.
SUNDAY
PARTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS AROUND 70.
SOUTHWEST WINDS 20 TO 25 MPH.
MONDAY
MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE LOWER
70S. SOUTHWEST WINDS 20 TO 25 MPH.
TUESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE MID
70S.
WEDNESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF RAIN. LOWS AROUND
50. HIGHS IN THE LOWER 70S.
MTZ117-181030-
CENTRAL AND EASTERN LEWIS AND CLARK NATIONAL FOREST AREAS-
154 PM MDT WED SEP 17 2025
TONIGHT
* SKY/WEATHER...........PARTLY CLOUDY.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......41-50.
24 HR TREND......UNCHANGED.
* MAX HUMIDITY..........74-84 PERCENT.
24 HR TREND......15 PERCENT DOWN...9 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...EAST WINDS 10 TO 15 MPH SHIFTING TO THE
SOUTH AFTER MIDNIGHT.
RIDGES.............SOUTHEAST WINDS 10 TO 15 MPH SHIFTING TO
THE SOUTH AFTER MIDNIGHT.
* MIXING HEIGHT.........5500 FT AGL DECREASING TO 1000-2000 FT AGL.
* TRANSPORT WINDS.......EAST 15 TO 20 MPH SHIFTING TO THE SOUTH
AFTER MIDNIGHT.
* CWR...................0 PERCENT.
THURSDAY
* SKY/WEATHER...........SUNNY.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......73-80...63-72 HIGHER ELEVATIONS.
24 HR TREND......4 DEGREES UP.
* MIN HUMIDITY..........27-37 PERCENT.
24 HR TREND......12 PERCENT DOWN.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTH WINDS 10 TO 15 MPH.
RIDGES.............SOUTH WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........500-1000 FT AGL INCREASING TO 6000-7000 FT
AGL.
* TRANSPORT WINDS.......SOUTHWEST 15 TO 20 MPH SHIFTING TO THE
NORTHWEST IN THE AFTERNOON.
* CWR...................0 PERCENT.
THURSDAY NIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......42-50.
24 HR TREND......1 DEGREE DOWN.
* MAX HUMIDITY..........65-75 PERCENT.
24 HR TREND......15 PERCENT DOWN...7 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...EAST WINDS 10 TO 15 MPH SHIFTING TO THE
SOUTH AFTER MIDNIGHT.
RIDGES.............SOUTHEAST WINDS 10 TO 15 MPH SHIFTING TO
THE SOUTH AFTER MIDNIGHT.
* MIXING HEIGHT.........3500-5000 FT AGL DECREASING TO 500-2000 FT
AGL EARLY IN THE EVENING.
* TRANSPORT WINDS.......EAST 15 TO 20 MPH SHIFTING TO THE SOUTH
AFTER MIDNIGHT.
* CWR...................0 PERCENT.
FRIDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......74-81...65-74 HIGHER ELEVATIONS.
24 HR TREND......1 DEGREE UP.
* MIN HUMIDITY..........24-31 PERCENT.
24 HR TREND......1 PERCENT DOWN...6 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHWEST WINDS 10 TO 15 MPH.
RIDGES.............SOUTHWEST WINDS 10 TO 15 MPH SHIFTING TO
THE WEST IN THE AFTERNOON.
* MIXING HEIGHT.........500-2000 FT AGL INCREASING TO 8000-9500 FT
AGL.
* TRANSPORT WINDS.......SOUTHWEST 10 TO 15 MPH.
* CWR...................0 PERCENT.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE MID
70S. SOUTHWEST WINDS 15 TO 20 MPH.
SUNDAY
PARTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS IN THE
LOWER 70S. WEST WINDS 20 TO 25 MPH.
MONDAY
MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE LOWER
70S. WEST WINDS 20 TO 25 MPH.
TUESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE
UPPER 70S.
WEDNESDAY
PARTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS IN THE
MID 70S.
WEATHER.GOV/GREATFALLS
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