974
FNUS75 KMSO 181910
FWSMSO
SPOT FORECAST FOR SILVERTIP
NATIONAL WEATHER SERVICE MISSOULA MT
110 PM MDT TUE AUG 18 2026
FORECAST IS BASED ON FORECAST START TIME OF 1400 MDT ON AUGUST 18.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
ISOLATED SHOWERS AND THUNDERSTORM DURING TUESDAY
AFTERNOON AND EARLY EVENING. WIND GUST WILL BE THE MAIN RISK WITH
GUST UP TO 45-50 MPH POSSIBLE WITH SHOWER/THUNDERSTORM OUTFLOW,
EVEN THOUGH ACTIVITIES MAY BE FAR AWAY FROM THE FIRE GROUND.
LITTLE RAINFALL EXPECTED TO REACH GROUND, WITH ADDITIONAL RISK OF
DRY LIGHTNING. WETTING RAIN WILL ONLY BE LIKELY WITH A DIRECT HIT
OF THUNDERSTORM, EVEN THEN, RAINFALL TOTALS LIKELY TO BE LESS THAN
0.1 INCH.
BREEZY AND GUSTY WESTERLY WIND DURING TUESDAY AFTERNOON, WIND
GUST UP TO 25 MPH POSSIBLE, ESPECIALLY OVER THE RIDGE TOP. WINDS
OVER THE LOWER TERRAIN/VALLEY MAY DROP TO LIGHT 5-10 MPH
OVERNIGHT, IN WHICH CASE TERRAIN DRIVEN DOWN-SLOPE WINDS MAY
DEVELOP. HOWEVER, WINDS AT RIDGE TOP LIKELY TO MAINTAIN A WESTERLY
FLOW AROUND 15 MPH OVERNIGHT.
MODERATE RH RECOVERY TUESDAY NIGHT OVER LOWER TERRAIN/VALLEY
AREAS.
WARMER AND DRIER CONDITION WITH NO PRECIPITATION EXPECTED ON
WEDNESDAY. WESTERLY FLOW CONTINUE ON WEDNESDAY, WITH WIND AND GUST
SLIGHTLY LOWER THAN TUESDAY THOUGH.
REST OF TODAY
* SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS.
* CWR (> 0.10 INCH)...10 PERCENT.
* CHANCE LIGHTNING....20 PERCENT.
* MAX TEMPERATURE.....70-75.
* MIN HUMIDITY........40-46 PERCENT.
* WIND (20 FT)........WEST 10-12 MPH.
* PRECIP AMOUNT.......0-0.05 INCHES.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR. SLIGHT CHANCE OF A SHOWER OR
THUNDERSTORM IN THE EVENING.
* CWR (> 0.10 INCH)...10 PERCENT.
* CHANCE LIGHTNING....15 PERCENT.
* MIN TEMPERATURE.....BOTTOM: 49-53. TOP: 54-58.
* MAX HUMIDITY........BOTTOM: 56-63 PERCENT. TOP: 42-50 PERCENT.
* WIND (20 FT)........BOTTOM: SOUTHWEST 5-10 MPH.TOP: WEST 10-15
MPH, GUSTS UP 25 MPH IN THE EVENING EASING TO GUSTS TO 20 MPH
OVERNIGHT.
* PRECIP AMOUNT.......0.00 INCHES.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* CWR (> 0.10 INCH)...0 PERCENT.
* CHANCE LIGHTNING....0 PERCENT.
* MAX TEMPERATURE.....BOTTOM: 74-78. TOP: 64-72.
* MIN HUMIDITY........30-40 PERCENT.
* WIND (20 FT)........BOTTOM: VARIABLE AROUND 5 MPH SHIFTING TO
THE WEST AROUND 10 MPH WITH GUSTS TO AROUND 20 MPH IN THE
AFTERNOON. TOP: WEST 10-15 MPH GUSTS TO 20 MPH.
* PRECIP AMOUNT.......0.00 INCHES.
FORECASTER...JENNK/JUNSMITHBOM
REQUESTED BY...JIM FLINT
TYPE OF REQUEST...WILDFIRE
.TAG 2619866.1/MSO
.DELDT 08/18/26
.FORMATTERVERSION 2.0.0
.EMAIL JAMES.FLINT@USDA.GOV,SCOTT.REID@USDA.GOV
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