Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Missoula, MT

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FNUS55 KMSO 202051
FWFMSO

Fire Weather Planning Forecast for Wrn Montana and N Cntrl Idaho
National Weather Service Missoula MT
251 PM MDT Sun Aug 20 2017

.DISCUSSION...

Idaho: High pressure will build back over the region beginning tonight,
bringing stable conditions through Tuesday. A warming and drying trend
will be evident with strengthening night time inversions. Very poor RH
recoveries are expected on the mid slopes and ridges by Wednesday
morning. The ridge will begin to break down on Wednesday afternoon, with
southwest flow increasing instability. Monsoonal moisture will increase
the threat for dry thunderstorms. A cold front will pass Thursday,
bringing gusty southwest to west winds.

Montana: High pressure will build back over the region beginning tonight,
bringing stable conditions through Tuesday. A warming and drying trend
will be evident with strengthening night time inversions. Very poor RH
recoveries are expected on the mid slopes and ridges by Wednesday
morning. The ridge will begin to break down on Wednesday afternoon, with
southwest flow increasing instability. Monsoonal moisture will increase
the threat for dry thunderstorms, especially Wednesday night. A cold
front will pass Thursday, bringing gusty southwest to west winds and
continued thunderstorms, especially across southwest Montana.

View Fire Weather Briefing videos on our YouTube channel
at https://www.youtube.com/NWSMissoula

IDZ102-103-212100-
Palouse/Hells Canyon-Clearwater/Nez Perce-
151 PM PDT Sun Aug 20 2017

.TONIGHT...
* Sky/Weather.........Partly cloudy. Haze and areas of smoke.
* Min Temperature.....43-53.
* Max Humidity........65-75 percent valleys and 58-68 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Downslope/downvalley 2-5 mph.
*     Ridge Top............North 5-10 mph.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.

.MONDAY...
* Sky/Weather.........Mostly sunny. Haze and areas of smoke.
* Max Temperature.....85-95 valleys and 75-80 ridges.
* Min Humidity........13-23 percent.
* 20-Foot Winds.......
*     Lower Elevation......Becoming upslope/upvalley 4-8 mph late in
      the afternoon.
*     Ridge Top............East up to 5 mph becoming northwest in the
      afternoon.
* Haines Index........3 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.

.MONDAY NIGHT...
* Sky/Weather.........Mostly clear. Haze and areas of smoke.
* Min Temperature.....48-58.
* Max Humidity........64-74 percent valleys and 52-62 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Downslope/downvalley 2-5 mph.
*     Ridge Top............Northeast up to 5 mph becoming southeast
      after midnight.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.

.TUESDAY...
* Sky/Weather.........Sunny. Haze and areas of smoke.
* Max Temperature.....90-100 valleys and 80-85 ridges.
* Min Humidity........10-20 percent.
* 20-Foot Winds.......
*     Lower Elevation......Variable less than 7 mph.
*     Ridge Top............Southwest up to 5 mph.
* Haines Index........3 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.

.WEDNESDAY...Mostly clear. Slight chance of rain showers and
thunderstorms. Haze and areas of smoke. Lows 55-65. Highs 85-95.
Southwest winds 5-10 mph.
.THURSDAY...Not as warm. Mostly cloudy with chance of rain showers and
slight chance of thunderstorms. Lows 55-65. Highs 75-85. West winds
10-20 mph.
.FRIDAY...Mostly clear. Slight chance of rain showers and
thunderstorms. Lows 45-55. Highs 75-85. West winds 10-20 mph.
.SATURDAY...Mostly clear. Lows 45-55. Highs 80-90.
.SUNDAY...Clear. Lows 50-60. Highs 85-95.

$$

MTZ104-105-212100-
Kootenai-Flathead/Glacier Park-
251 PM MDT Sun Aug 20 2017

.TONIGHT...
* Sky/Weather.........Mostly cloudy then becoming partly cloudy.
  Haze and areas of smoke.
* Min Temperature.....40-50.
* Max Humidity........73-83 percent valleys and 58-68 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Downslope/downvalley 2-5 mph.
*     Ridge Top............West 5-10 mph.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.

.MONDAY...
* Sky/Weather.........Mostly sunny. Haze and areas of smoke.
* Max Temperature.....80-90 valleys and 70-75 ridges.
* Min Humidity........21-31 percent.
* 20-Foot Winds.......
*     Lower Elevation......Becoming upslope/upvalley 4-8 mph in the
      afternoon.
*     Ridge Top............West up to 5 mph.
* Haines Index........2 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.

.MONDAY NIGHT...
* Sky/Weather.........Partly cloudy. Haze and areas of smoke.
* Min Temperature.....38-48 valleys and 45-55 ridges.
* Max Humidity........74-84 percent valleys and 58-68 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Downslope/downvalley 2-5 mph.
*     Ridge Top............West up to 5 mph becoming south in the late
      evening and overnight.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.

.TUESDAY...
* Sky/Weather.........Mostly sunny. Haze and areas of smoke.
* Max Temperature.....85-95 valleys and 75-80 ridges.
* Min Humidity........15-25 percent.
* 20-Foot Winds.......
*     Lower Elevation......Becoming upslope/upvalley 4-8 mph in the
      afternoon.
*     Ridge Top............Southwest 5-10 mph.
* Haines Index........3 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.

.WEDNESDAY...Mostly clear. Haze and areas of smoke. Lows 50-60. Highs
80-90. Southwest winds 10-20 mph.
.THURSDAY...Not as warm. Mostly cloudy with chance of rain showers and
slight chance of thunderstorms. Lows 55-65. Highs 70-80. Southwest
winds 20-30 mph.
.FRIDAY...Mostly clear. Chance of rain showers and thunderstorms. Lows
45-55. Highs 70-80. Southwest winds 20-30 mph.
.SATURDAY...Mostly clear. Lows 45-55. Highs 75-85.
.SUNDAY...Mostly clear. Lows 45-55. Highs 80-90.

$$

MTZ106-108-212100-
West Lolo-East Lolo-
251 PM MDT Sun Aug 20 2017

.TONIGHT...
* Sky/Weather.........Mostly cloudy then becoming partly cloudy.
  Haze and areas of smoke.
* Min Temperature.....40-50.
* Max Humidity........62-72 percent valleys and 43-53 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Downslope/downvalley 2-5 mph.
*     Ridge Top............Northwest 5-10 mph.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.

.MONDAY...
* Sky/Weather.........Mostly sunny. Haze and areas of smoke.
* Max Temperature.....80-90 valleys and 70-80 ridges.
* Min Humidity........9-19 percent valleys and 15-25 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Becoming upslope/upvalley 4-8 mph in the
      afternoon.
*     Ridge Top............Northwest up to 5 mph.
* Haines Index........2 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.

.MONDAY NIGHT...
* Sky/Weather.........Mostly clear. Haze and areas of smoke.
* Min Temperature.....40-50 valleys and 50-60 ridges.
* Max Humidity........59-69 percent valleys and 34-44 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Downslope/downvalley 2-5 mph.
*     Ridge Top............Northeast up to 5 mph becoming southeast
      after midnight.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.

.TUESDAY...
* Sky/Weather.........Sunny. Haze and areas of smoke.
* Max Temperature.....90-95 valleys and 80-85 ridges.
* Min Humidity........9-19 percent.
* 20-Foot Winds.......
*     Lower Elevation......Becoming upslope/upvalley 4-8 mph in the
      afternoon.
*     Ridge Top............Southeast up to 5 mph becoming southwest in
      the afternoon.
* Haines Index........3 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.

.WEDNESDAY...Mostly clear. Haze and areas of smoke. Lows 55-65. Highs
85-95. Southwest winds 5-10 mph.
.THURSDAY...Not as warm. Mostly cloudy with chance of rain showers and
thunderstorms. Lows 55-65. Highs 75-85. West winds 10-20 mph.
.FRIDAY...Partly cloudy with chance of rain showers and thunderstorms.
Lows 45-55. Highs 75-85. West winds 15-25 mph.
.SATURDAY...Mostly clear. Lows 45-55. Highs 80-90.
.SUNDAY...Mostly clear. Lows 50-60. Highs 80-90.

$$

MTZ107-212100-
Salish and Kootenai Reservation-
251 PM MDT Sun Aug 20 2017

.TONIGHT...
* Sky/Weather.........Mostly cloudy then becoming partly cloudy.
  Haze and areas of smoke.
* Min Temperature.....45-55 valleys and 40-45 ridges.
* Max Humidity........63-73 percent valleys and 51-61 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Variable less than 5 mph in the evening
      becoming downslope/downvalley 2-5 mph.
*     Ridge Top............Northwest 5-10 mph.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.

.MONDAY...
* Sky/Weather.........Mostly sunny. Haze and areas of smoke.
* Max Temperature.....80-85 valleys and 65-70 ridges.
* Min Humidity........15-25 percent.
* 20-Foot Winds.......
*     Lower Elevation......Variable less than 7 mph.
*     Ridge Top............Northwest up to 5 mph early in the morning
      becoming variable 1-3 mph, then becoming northwest up to 5
      mph in the afternoon.
* Haines Index........2 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.

.MONDAY NIGHT...
* Sky/Weather.........Mostly clear. Haze and areas of smoke.
* Min Temperature.....45-55.
* Max Humidity........60-70 percent valleys and 44-54 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Downslope/downvalley 1-3 mph.
*     Ridge Top............Northeast up to 5 mph becoming southeast
      after midnight.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.

.TUESDAY...
* Sky/Weather.........Sunny. Haze and areas of smoke.
* Max Temperature.....90-95 valleys and 70-75 ridges.
* Min Humidity........10-20 percent.
* 20-Foot Winds.......
*     Lower Elevation......Variable less than 7 mph.
*     Ridge Top............Southeast up to 5 mph becoming southwest in
      the afternoon.
* Haines Index........3 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.

.WEDNESDAY...Mostly clear. Haze and areas of smoke. Lows 55-65. Highs
85-95. Southwest winds 10-15 mph.
.THURSDAY...Mostly cloudy with chance of rain showers and
thunderstorms. Lows 60-70. Highs 80-90. Southwest winds 10-20 mph.
.FRIDAY...Partly cloudy with chance of rain showers and thunderstorms.
Lows 50-60. Highs 75-85. Southwest winds 15-25 mph.
.SATURDAY...Mostly clear. Lows 45-55. Highs 80-90.
.SUNDAY...Mostly clear. Lows 50-60. Highs 85-95.

$$

MTZ109-212100-
Bitterroot-
251 PM MDT Sun Aug 20 2017

.TONIGHT...
* Sky/Weather.........Mostly cloudy becoming partly cloudy. Haze and
  areas of smoke.
* Min Temperature.....40-50.
* Max Humidity........63-73 percent valleys and 42-52 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Downslope/downvalley 1-3 mph.
*     Ridge Top............North 5-10 mph.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.

.MONDAY...
* Sky/Weather.........Mostly sunny. Haze and areas of smoke.
* Max Temperature.....85-90 valleys and 70-75 ridges.
* Min Humidity........12-22 percent.
* 20-Foot Winds.......
*     Lower Elevation......Becoming upslope/upvalley 4-8 mph in the
      afternoon.
*     Ridge Top............Northeast up to 5 mph becoming north in the
      afternoon.
* Haines Index........3 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.

.MONDAY NIGHT...
* Sky/Weather.........Mostly clear. Haze and areas of smoke.
* Min Temperature.....45-55.
* Max Humidity........63-73 percent valleys and 39-49 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Downslope/downvalley 1-3 mph.
*     Ridge Top............Northeast up to 5 mph becoming southeast
      after midnight.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.

.TUESDAY...
* Sky/Weather.........Sunny. Haze and areas of smoke.
* Max Temperature.....90-95 valleys and 80-85 ridges.
* Min Humidity........9-19 percent.
* 20-Foot Winds.......
*     Lower Elevation......Becoming upslope/upvalley 4-8 mph in the
      afternoon.
*     Ridge Top............Southwest up to 5 mph.
* Haines Index........4 low.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.

.WEDNESDAY...Mostly clear. Slight chance of rain showers and
thunderstorms. Haze and areas of smoke. Lows 50-60. Highs 80-90.
Southwest winds 5-10 mph.
.THURSDAY...Mostly cloudy with chance of rain showers and
thunderstorms. Lows 55-65. Highs 75-85. West winds 10-20 mph.
.FRIDAY...Partly cloudy with chance of rain showers and thunderstorms.
Lows 45-55. Highs 70-80. West winds 15-25 mph.
.SATURDAY...Mostly clear. Lows 45-55. Highs 75-85.
.SUNDAY...Mostly clear. Lows 45-55. Highs 80-90.

$$

MTZ110-111-212100-
Deerlodge/West Beaverhead-East Beaverhead-
251 PM MDT Sun Aug 20 2017

.TONIGHT...
* Sky/Weather.........Mostly cloudy then becoming partly cloudy. Haze
  and patchy smoke.
* Min Temperature.....40-45.
* Max Humidity........60-70 percent valleys and 54-64 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......North 5-10 mph in the evening becoming
      downslope/downvalley 2-5 mph.
*     Ridge Top............North 5-10 mph.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.

.MONDAY...
* Sky/Weather.........Mostly sunny. Haze and patchy smoke.
* Max Temperature.....80-85 valleys and 70-75 ridges.
* Min Humidity........13-23 percent.
* 20-Foot Winds.......
*     Lower Elevation......Variable less than 7 mph.
*     Ridge Top............Northwest 5-10 mph.
* Haines Index........4 low.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.

.MONDAY NIGHT...
* Sky/Weather.........Mostly clear. Haze and areas of smoke.
* Min Temperature.....40-50.
* Max Humidity........66-76 percent valleys and 54-64 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Northeast 5-10 mph in the evening becoming
      downslope/downvalley 2-5 mph.
*     Ridge Top............Northeast 5-10 mph becoming southeast up to
      5 mph after midnight.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.

.TUESDAY...
* Sky/Weather.........Mostly sunny. Haze and areas of smoke.
* Max Temperature.....85-90 valleys and 75-80 ridges.
* Min Humidity........9-19 percent.
* 20-Foot Winds.......
*     Lower Elevation......Variable less than 7 mph.
*     Ridge Top............Southwest 5-10 mph.
* Haines Index........4 low.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.

.WEDNESDAY...Mostly clear. Slight chance of rain showers and
thunderstorms. Haze and areas of smoke. Lows 50-60. Highs 80-90.
Southwest winds 5-10 mph.
.THURSDAY...Mostly cloudy with chance of rain showers and
thunderstorms. Lows 50-60. Highs 75-85. Southwest winds 10-15 mph.
.FRIDAY...Partly cloudy with chance of rain showers and thunderstorms.
Lows 45-55. Highs 70-80. Southwest winds 10-20 mph.
.SATURDAY...Mostly clear. Lows 45-55. Highs 75-85.
.SUNDAY...Mostly clear. Lows 45-55. Highs 75-85.

$$



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