560
FNUS75 KTFX 191448
FWSTFX
SPOT FORECAST FOR FIREFIGHTER TRAINING...LEWIS AND CLARK FS
NATIONAL WEATHER SERVICE GREAT FALLS MT
848 AM MDT WED JUN 19 2019
FORECAST IS BASED ON FORECAST START TIME OF 0900 MDT ON JUNE 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
A COLD FRONT PASSING THROUGH THE REGION ON WEDNESDAY WILL
INITIATE A PERIOD OF COOLER AND WETTER WEATHER THURSDAY THROUGH
SATURDAY. TOTAL RAINFALL OF 0.5 TO 1 INCHES IS POSSIBLE THROUGH
THIS PERIOD WITH SNOW POSSIBLE AT THE TRAILHEAD OVERNIGHT.
CONDITIONS GRADUALLY IMPROVE BEGINNING SUNDAY, BUT WITH RAIN
SHOWERS AND POSSIBLE THUNDERSTORMS CONTINUING AT TIMES INTO NEXT
WEEK. A TRANSITION BACK TO SOUTHWESTERLY WINDS NEXT WEDNESDAY AND
THURSDAY RETURNS TEMPERATURES TO NEAR AVERAGE, BUT ALSO RAISES THE
POTENTIAL FOR STRONGER THUNDERSTORMS.
THURSDAY
SKY/WEATHER.........INCREASING CLOUDS. SLIGHT CHANCE OF SNOW LATE IN THE
MORNING, THEN RAIN LIKELY IN THE AFTERNOON.
CHANCE OF PCPN......60 PERCENT.
MAX TEMPERATURE.....49-54.
MIN HUMIDITY........47-52 PERCENT.
SURFACE WINDS (MPH).WEST WINDS 10-15 MPH.
THURSDAY NIGHT
SKY/WEATHER.........CLOUDY. CHANCE OF RAIN THROUGH THE
NIGHT. CHANCE OF SNOW OVERNIGHT. SNOW LEVEL
AROUND 5,550 FT. A TRACE TO 0.5 INCH SNOWFALL
POSSIBLE AT THE TRAILHEAD, WITH 2 TO 4 INCHES
ABOVE 6000 FEET.
CHANCE OF PCPN......80 PERCENT.
MIN TEMPERATURE.....33-38.
MAX HUMIDITY........80-85 PERCENT.
SURFACE WINDS (MPH).WEST WINDS AROUND 10 MPH.
FRIDAY
SKY/WEATHER.........CLOUDY. RAIN AND SNOW LIKELY IN THE
MORNING, CHANGING TO RAIN IN THE AFTERNOON.
CHANCE OF PCPN......90 PERCENT.
MAX TEMPERATURE.....47-52.
MIN HUMIDITY........66-71 PERCENT.
SURFACE WINDS (MPH).WEST WINDS 6 TO 13 MPH.
FORECAST DAYS 3 THROUGH 7
SATURDAY
SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS. LOWS IN THE UPPER
30S. HIGHS IN THE UPPER 50S. WEST WINDS 10 TO 15 MPH.
SUNDAY
MOSTLY CLOUDY. RAIN LIKELY AND SLIGHT CHANCE OF THUNDERSTORMS.
LOWS IN THE UPPER 30S. HIGHS AROUND 60. WEST WINDS 10 TO 15 MPH.
MONDAY
MOSTLY CLOUDY. CHANCE OF RAIN. LOWS IN THE UPPER 30S. HIGHS IN
THE LOWER 60S. WEST WINDS 10 TO 15 MPH.
TUESDAY
MOSTLY CLOUDY. CHANCE OF THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN
THE MID 60S.
WEDNESDAY
MOSTLY CLOUDY. CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN
THE UPPER 60S.
FORECASTER...NUTTER
REQUESTED BY...KEVIN ARNOLD
TYPE OF REQUEST...OTHER
.TAG 1910946.1/TFX
.DELDT 06/19/19
.EMAIL LKARNOLD@FS.FED.US
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