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

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939
FNUS55 KMSO 211104
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Fire Weather Planning Forecast for Wrn Montana and N Cntrl Idaho
National Weather Service Missoula MT
504 AM MDT Sat Oct 21 2017


.DISCUSSION...

Idaho: Precipitation and winds will be on the increase this afternoon
as an atmospheric river moves into the region. Over the next 24-48
hours, 2 to 3 inches of moisture with locally up to 4 inches is expected
over the mountains of central Idaho. The heaviest period of
precipitation is expected to be on Saturday night through Sunday
morning. A ridge of high pressure will begin to build over the region on
Monday and will bring warmer and drier weather through Tuesday. Another
weather system is expected to pass through the region on Wednesday
afternoon.


Montana: Precipitation and winds will be on the increase this evening
into Sunday as an atmospheric river moves into the region. Over the
next 24-48 hours, 1 to 3 inches of moisture will be possible over the
mountain of west-central and northwest Montana. A very strong jet aloft
will bring strong winds to higher elevations on Sunday with wind gusts
of 50 to 60 mph possible across ridge tops. A ridge of high pressure
will begin to build over the region on Monday and will bring warmer and
drier weather through Tuesday. Another weather system is expected to
pass through the region on Wednesday evening.


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IDZ102-103-221115-
Palouse/Hells Canyon-Clearwater/Nez Perce-
404 AM PDT Sat Oct 21 2017

.TODAY...
* Sky/Weather.........Mostly cloudy. Scattered snow showers in the
  morning. Snow in the afternoon. Snow level 3500 feet.
* Max Temperature.....45-50 valleys and 35-40 ridges.
* Min Humidity........56-66 percent valleys and 62-72 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Becoming southwest 5-15 mph in the late
      morning and afternoon.
*     Ridge Top............Southwest 15-25 mph.
* Haines Index........2 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...60 percent in the Palouse/Hells Canyon...and
  40 percent in the Clearwater/Nez Perce.

.TONIGHT...
* Sky/Weather.........Snow in the evening. Rain. Snow level 7000
  feet.
* Min Temperature.....40-45 valleys and 30-40 ridges.
* Max Humidity........89-98 percent.
* 20-Foot Winds.......
*     Lower Elevation......South 10-15 mph.
*     Ridge Top............Southwest 20-30 mph.
* LAL.................1.
* CWR (> 0.10 Inch)...100 percent.

.SUNDAY...
* Sky/Weather.........Mostly cloudy. Rain showers in the morning,
  then rain in the afternoon.
* Max Temperature.....50-55 valleys and 40-50 ridges.
* Min Humidity........72-82 percent.
* 20-Foot Winds.......
*     Lower Elevation......Southwest 5-15 mph.
*     Ridge Top............Southwest 20-35 mph.
* Haines Index........2 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...80 percent in the Palouse/Hells Canyon...and
  100 percent in the Clearwater/Nez Perce.

.MONDAY...Mostly cloudy with chance of rain showers. Lows 40-50. Highs
50-60. Southwest winds 15-25 mph.
.TUESDAY...Mostly clear. Lows 35-45. Highs 55-65. Diurnal terrain winds
to 10 mph.
.WEDNESDAY...Partly cloudy with rain likely. Lows 40-50. Highs 55-65.
South winds 15-25 mph.
.THURSDAY...Cooler. Mostly cloudy. Rain and snow likely. Lows 30-40.
Highs 45-55.
.FRIDAY...Partly cloudy. Lows 25-35. Highs 45-55.

$$

MTZ104-105-221115-
Kootenai-Flathead/Glacier Park-
504 AM MDT Sat Oct 21 2017

.TODAY...
* Sky/Weather.........Mostly cloudy. Scattered snow showers and
  isolated rain showers in the morning, then chance of rain and
  snow in the afternoon. Snow level 3500 feet.
* Max Temperature.....40-45 valleys and 30-40 ridges.
* Min Humidity........50-60 percent valleys and 68-78 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Southwest 5-15 mph.
*     Ridge Top............West 20-30 mph.
* Haines Index........2 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...10 percent.

.TONIGHT...
* Sky/Weather.........Rain and snow. Snow level 5500 feet.
* Min Temperature.....30-35.
* Max Humidity........91-97 percent.
* 20-Foot Winds.......
*     Lower Elevation......South 5-15 mph.
*     Ridge Top............Southwest 20-30 mph increasing to 30-40 mph
      early in the morning.
* LAL.................1.
* CWR (> 0.10 Inch)...100 percent.

.SUNDAY...
* Sky/Weather.........Rain. Snow level 7000 feet.
* Max Temperature.....50-55 valleys and 40-45 ridges.
* Min Humidity........53-63 percent valleys and 70-80 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Southwest 15-25 mph.
*     Ridge Top............Southwest 30-45 mph.
* Haines Index........2 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...90 percent.

.MONDAY...Mostly cloudy with chance of rain showers and snow showers.
Lows 35-45. Highs 45-55. Southwest winds 25-35 mph.
.TUESDAY...Partly cloudy. Lows 30-40. Highs 50-60. Southwest winds
10-15 mph.
.WEDNESDAY...Mostly cloudy with rain likely. Lows 35-45. Highs 50-60.
Southwest winds 20-30 mph.
.THURSDAY...Colder. Mostly cloudy. Chance of snow. Lows 20-30. Highs
35-45.
.FRIDAY...Mostly cloudy. Lows 20-30. Highs 40-50.

$$

MTZ106-108-221115-
West Lolo-East Lolo-
504 AM MDT Sat Oct 21 2017

.TODAY...
* Sky/Weather.........Mostly cloudy. Isolated snow showers in the
  morning. Chance of snow in the afternoon. Snow level 4000 feet.
* Max Temperature.....40-45 valleys and 30-40 ridges.
* Min Humidity........45-55 percent valleys and 57-67 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......West 5-15 mph.
*     Ridge Top............West 10-20 mph.
* Haines Index........2 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...10 percent.

.TONIGHT...
* Sky/Weather.........Cloudy. Snow in the evening. Rain. Snow level
  6000 feet.
* Min Temperature.....30-40.
* Max Humidity........87-97 percent.
* 20-Foot Winds.......
*     Lower Elevation......Southwest 5-15 mph.
*     Ridge Top............Southwest 25-35 mph.
* LAL.................1.
* CWR (> 0.10 Inch)...100 percent in the West Lolo...and 70 percent
  in the East Lolo.

.SUNDAY...
* Sky/Weather.........Cloudy. Rain. Snow level 7500 feet.
* Max Temperature.....50-55 valleys and 40-50 ridges.
* Min Humidity........61-71 percent valleys and 74-84 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Southwest 15-25 mph.
*     Ridge Top............Southwest 25-40 mph.
* Haines Index........2 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...100 percent in the West Lolo...and 70 percent
  in the East Lolo.

.MONDAY...Mostly cloudy with slight chance of rain showers. Lows 35-45.
Highs 45-55. West winds 20-30 mph.
.TUESDAY...Mostly clear. Lows 35-45. Highs 55-65. Southwest winds
5-10 mph.
.WEDNESDAY...Partly cloudy with rain likely. Lows 35-45. Highs 50-60.
Southwest winds 15-25 mph.
.THURSDAY...Colder. Mostly cloudy. Snow and rain likely. Lows 25-35.
Highs 35-45.
.FRIDAY...Partly cloudy. Lows 20-30. Highs 40-50.

$$

MTZ107-221115-
Salish and Kootenai Reservation-
504 AM MDT Sat Oct 21 2017

.TODAY...
* Sky/Weather.........Mostly cloudy. Scattered snow showers and
  isolated rain showers in the morning. Chance of snow in the
  afternoon. Snow level 3500 feet.
* Max Temperature.....45-50 valleys and 30-35 ridges.
* Min Humidity........39-49 percent valleys and 57-67 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Variable less than 7 mph.
*     Ridge Top............West 10-20 mph.
* Haines Index........2 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...10 percent.

.TONIGHT...
* Sky/Weather.........Cloudy. Snow in the evening. Rain. Snow level
  6000 feet.
* Min Temperature.....40-45 valleys and 30-35 ridges.
* Max Humidity........90-94 percent.
* 20-Foot Winds.......
*     Lower Elevation......South 5-15 mph.
*     Ridge Top............Southwest 15-25 mph increasing to 25-35 mph
      early in the morning.
* LAL.................1.
* CWR (> 0.10 Inch)...70 percent.

.SUNDAY...
* Sky/Weather.........Cloudy. Rain. Snow level 7500 feet.
* Max Temperature.....55-60 valleys and 40-45 ridges.
* Min Humidity........47-57 percent valleys and 62-72 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Southwest 15-25 mph.
*     Ridge Top............Southwest 25-40 mph increasing to 30-45 mph
      in the afternoon.
* Haines Index........2 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...80 percent.

.MONDAY...Mostly cloudy with chance of rain showers. Lows 35-45. Highs
50-60. Southwest winds 20-30 mph.
.TUESDAY...Partly cloudy. Lows 35-45. Highs 55-65. Southwest winds
5-10 mph.
.WEDNESDAY...Partly cloudy with rain likely. Lows 35-45. Highs 55-65.
South winds 15-25 mph.
.THURSDAY...Colder. Mostly cloudy. Chance of rain and snow. Lows 30-40.
Highs 40-50.
.FRIDAY...Mostly cloudy. Lows 25-35. Highs 45-55.

$$

MTZ109-221115-
Bitterroot-
504 AM MDT Sat Oct 21 2017

.TODAY...
* Sky/Weather.........Mostly cloudy. Scattered snow showers in the
  morning. Chance of rain in the afternoon. Snow level 4000 feet.
* Max Temperature.....45-50 valleys and 30-40 ridges.
* Min Humidity........38-48 percent valleys and 58-68 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Variable less than 7 mph.
*     Ridge Top............Southwest 5-15 mph.
* Haines Index........2 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...10 percent.

.TONIGHT...
* Sky/Weather.........Cloudy. Rain and snow. Snow level 6500 feet.
* Min Temperature.....30-40.
* Max Humidity........88-96 percent.
* 20-Foot Winds.......
*     Lower Elevation......South 5-15 mph.
*     Ridge Top............Southwest 20-30 mph.
* LAL.................1.
* CWR (> 0.10 Inch)...90 percent.

.SUNDAY...
* Sky/Weather.........Cloudy. Rain.
* Max Temperature.....50-55 valleys and 40-45 ridges.
* Min Humidity........58-68 percent valleys and 75-85 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Southwest 5-15 mph.
*     Ridge Top............Southwest 20-35 mph increasing to 30-40 mph
      in the afternoon.
* Haines Index........2 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...80 percent.

.MONDAY...Mostly cloudy with chance of rain showers and slight chance
of snow showers. Lows 35-45. Highs 45-55. West winds 15-25 mph.
.TUESDAY...Mostly clear. Lows 30-40. Highs 55-65. Southwest winds
5-10 mph.
.WEDNESDAY...Partly cloudy with chance of rain. Lows 35-45. Highs
55-65. Southwest winds 10-20 mph.
.THURSDAY...Colder. Mostly cloudy. Snow and rain likely. Lows 25-35.
Highs 35-45.
.FRIDAY...Partly cloudy. Lows 20-30. Highs 40-50.

$$

MTZ110-111-221115-
Deerlodge/West Beaverhead-East Beaverhead-
504 AM MDT Sat Oct 21 2017

.TODAY...
* Sky/Weather.........Mostly cloudy. Slight chance of snow showers.
* Max Temperature.....40-50 valleys and 30-40 ridges.
* Min Humidity........38-48 percent valleys and 47-57 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Southwest 10-20 mph.
*     Ridge Top............Southwest 10-20 mph.
* Haines Index........2 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.

.TONIGHT...
* Sky/Weather.........Mostly cloudy. Slight chance of rain showers
  in the evening. Chance of snow showers. Chance of rain after
  midnight. Snow level 6500 feet.
* Min Temperature.....30-40.
* Max Humidity........75-85 percent.
* 20-Foot Winds.......
*     Lower Elevation......Southwest 15-25 mph.
*     Ridge Top............Southwest 25-35 mph.
* LAL.................1.
* CWR (> 0.10 Inch)...40 percent in the Deerlodge/West
  Beaverhead...and 10 percent in the East Beaverhead.

.SUNDAY...
* Sky/Weather.........Mostly cloudy. Chance of snow showers in the
  morning. Rain likely.
* Max Temperature.....48-58 valleys and 40-45 ridges.
* Min Humidity........52-62 percent valleys and 64-74 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Southwest 15-25 mph.
*     Ridge Top............Southwest 30-40 mph.
* Haines Index........2 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...40 percent in the Deerlodge/West
  Beaverhead...and 0 percent in the East Beaverhead.

.MONDAY...Mostly cloudy with slight chance of rain showers and snow
showers. Lows 35-45. Highs 45-55. West winds 20-30 mph.
.TUESDAY...Mostly clear. Lows 30-40. Highs 55-65. West winds 5-10 mph.
.WEDNESDAY...Mostly clear. Chance of rain. Lows 35-45. Highs 55-65.
Southwest winds 10-20 mph.
.THURSDAY...Colder. Mostly cloudy. Chance of snow and rain. Lows 25-35.
Highs 35-45.
.FRIDAY...Partly cloudy. Lows 20-30. Highs 40-50.

$$



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