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

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FNUS55 KMSO 200952
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Fire Weather Planning Forecast for Wrn Montana and N Cntrl Idaho
National Weather Service Missoula MT
352 AM MDT Sun May 20 2018


.DISCUSSION...

Idaho: Humidity will struggle to dry below 30 percent this afternoon for
most locations across north central Idaho. Shower and thunderstorm
activity will arrive by this afternoon, increasing both cloud cover and
humidity. The region will exist in a daily cycle of afternoon and
evening showers and thunderstorms, maintaining relatively high afternoon
humidity each day. This wet pattern is expected to cease over next
weekend, when high pressure warms and dries the region.

Montana: Humidity will struggle to dry below 30 percent this afternoon for
most locations across western Montana. Shower and thunderstorm activity
will arrive by this afternoon, increasing both cloud cover and
humidity (mainly for Bitterroot and Beaverhead-Deerlodge NFs). The
region will exist in a daily cycle of afternoon and evening showers and
thunderstorms, maintaining relatively high afternoon humidity each day.
This wet pattern is expected to cease over next weekend, when high
pressure warms and dries the region.


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

IDZ102-103-211000-
Palouse/Hells Canyon-Clearwater/Nez Perce-
252 AM PDT Sun May 20 2018

.TODAY...
* Sky/Weather.........Mostly cloudy. Scattered rain showers. Slight
  chance of thunderstorms in the afternoon.
* Max Temperature.....75-80 valleys and 60-70 ridges.
* Min Humidity........35-45 percent valleys and 46-56 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Variable less than 7 mph.
*     Ridge Top............Southwest up to 5 mph becoming north late in
      the afternoon.
* Haines Index........3 very low.
* LAL.................2.
* CWR (> 0.10 Inch)...20 percent.

.TONIGHT...
* Sky/Weather.........Mostly cloudy. Chance of thunderstorms in the
  evening. Rain showers likely.
* Min Temperature.....43-53.
* Max Humidity........93-98 percent.
* 20-Foot Winds.......
*     Lower Elevation......Variable less than 5 mph.
*     Ridge Top............Northeast 5-10 mph becoming northwest up to
      5 mph early in the morning.
* LAL.................3.
* CWR (> 0.10 Inch)...50 percent.

.MONDAY...
* Sky/Weather.........Mostly cloudy. Rain showers likely. Chance of
  thunderstorms in the afternoon.
* Max Temperature.....70-75 valleys and 60-65 ridges.
* Min Humidity........48-58 percent valleys and 63-73 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Variable less than 7 mph.
*     Ridge Top............Northwest 5-10 mph.
* Haines Index........3 very low.
* LAL.................3.
* CWR (> 0.10 Inch)...20 percent in the Palouse/Hells Canyon...and
  40 percent in the Clearwater/Nez Perce.

.TUESDAY...Mostly cloudy with chance of rain showers and slight chance
of thunderstorms. Lows 45-55. Highs 75-85. Variable winds up to 10 mph.
.WEDNESDAY...Mostly cloudy with chance of thunderstorms and slight
chance of rain showers. Lows 50-60. Highs 70-80. Variable winds up to
10 mph.
.THURSDAY...Mostly cloudy with chance of rain showers and slight chance
of thunderstorms. Lows 50-60. Highs 75-85. South winds 5-10 mph.
.FRIDAY...Partly cloudy. Chance of rain showers and slight chance of
thunderstorms. Lows 50-60. Highs 75-85.
.SATURDAY...Partly cloudy. Slight chance of rain showers. Lows 50-60.
Highs 75-85.

$$

MTZ104-105-211000-
Kootenai-Flathead/Glacier Park-
352 AM MDT Sun May 20 2018

.TODAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....70-75 valleys and 60-65 ridges.
* Min Humidity........33-43 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.

.TONIGHT...
* Sky/Weather.........Partly cloudy then becoming mostly cloudy.
  Slight chance of rain showers.
* Min Temperature.....40-45.
* Max Humidity........82-92 percent valleys and 72-82 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Downslope/downvalley 2-5 mph.
*     Ridge Top............Southwest 5-10 mph becoming northwest up to
      5 mph early in the morning.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.

.MONDAY...
* Sky/Weather.........Mostly cloudy. Chance of rain showers. Chance
  of thunderstorms in the afternoon.
* Max Temperature.....70-80 valleys and 60-70 ridges.
* Min Humidity........33-43 percent valleys and 41-51 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Variable less than 7 mph.
*     Ridge Top............Northwest 5-10 mph.
* Haines Index........3 very low.
* LAL.................3.
* CWR (> 0.10 Inch)...10 percent in the Kootenai...and 40 percent
  in the Flathead/Glacier Park.

.TUESDAY...Mostly cloudy with chance of rain showers and slight chance
of thunderstorms. Lows 45-55. Highs 70-80. Northeast winds 5-10 mph.
.WEDNESDAY...Partly cloudy with chance of rain showers and
thunderstorms. Lows 45-55. Highs 70-80. East winds 5-10 mph.
.THURSDAY...Mostly cloudy with chance of rain showers and slight chance
of thunderstorms. Lows 45-55. Highs 70-80. South winds 5-10 mph.
.FRIDAY...Partly cloudy. Slight chance of rain showers and
thunderstorms. Lows 45-55. Highs 70-80.
.SATURDAY...Partly cloudy. Slight chance of rain showers. Lows 45-55.
Highs 70-80.

$$

MTZ106-108-211000-
West Lolo-East Lolo-
352 AM MDT Sun May 20 2018

.TODAY...
* Sky/Weather.........Partly cloudy. Isolated rain showers in the
  afternoon.
* Max Temperature.....70-75 valleys and 60-70 ridges.
* Min Humidity........30-40 percent valleys and 37-47 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Variable less than 7 mph.
*     Ridge Top............Southwest up to 5 mph becoming north late in
      the afternoon.
* Haines Index........3 very low.
* LAL.................2.
* CWR (> 0.10 Inch)...0 percent.

.TONIGHT...
* Sky/Weather.........Mostly cloudy. Chance of rain showers and
  thunderstorms.
* Min Temperature.....40-45.
* Max Humidity........84-94 percent.
* 20-Foot Winds.......
*     Lower Elevation......Variable less than 5 mph.
*     Ridge Top............East up to 5 mph becoming north early in the
      morning.
* LAL.................3.
* CWR (> 0.10 Inch)...10 percent.

.MONDAY...
* Sky/Weather.........Mostly cloudy. Rain showers likely. Chance of
  thunderstorms in the afternoon.
* Max Temperature.....70-75 valleys and 60-70 ridges.
* Min Humidity........39-49 percent valleys and 50-60 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Variable less than 7 mph.
*     Ridge Top............Northwest 5-10 mph.
* Haines Index........3 very low.
* LAL.................3.
* CWR (> 0.10 Inch)...30 percent in the West Lolo...and 50 percent
  in the East Lolo.

.TUESDAY...Mostly cloudy with chance of rain showers and thunderstorms.
Lows 45-55. Highs 70-80. Variable winds up to 10 mph.
.WEDNESDAY...Mostly cloudy with chance of rain showers and
thunderstorms. Lows 45-55. Highs 70-80. East winds 5-10 mph.
.THURSDAY...Mostly cloudy with chance of rain showers and slight chance
of thunderstorms. Lows 45-55. Highs 70-80. South winds 5-10 mph.
.FRIDAY...Partly cloudy. Slight chance of rain showers and
thunderstorms. Lows 50-60. Highs 75-85.
.SATURDAY...Partly cloudy. Lows 50-60. Highs 75-85.

$$

MTZ107-211000-
Salish and Kootenai Reservation-
352 AM MDT Sun May 20 2018

.TODAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....70-75 valleys and 55-60 ridges.
* Min Humidity........35-45 percent.
* 20-Foot Winds.......
*     Lower Elevation......Becoming upslope/upvalley 4-8 mph in the
      afternoon.
*     Ridge Top............South 5-10 mph becoming northwest up to 5
      mph late in the afternoon.
* Haines Index........3 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.

.TONIGHT...
* Sky/Weather.........Mostly cloudy. Chance of thunderstorms and
  slight chance of rain showers.
* Min Temperature.....45-50.
* Max Humidity........83-93 percent.
* 20-Foot Winds.......
*     Lower Elevation......Variable less than 5 mph.
*     Ridge Top............Northeast up to 5 mph.
* LAL.................3.
* CWR (> 0.10 Inch)...0 percent.

.MONDAY...
* Sky/Weather.........Mostly cloudy. Rain showers likely. Chance of
  thunderstorms in the afternoon.
* Max Temperature.....70-75 valleys and 55-60 ridges.
* Min Humidity........43-53 percent.
* 20-Foot Winds.......
*     Lower Elevation......Variable less than 7 mph.
*     Ridge Top............Northwest 5-10 mph.
* Haines Index........3 very low.
* LAL.................3.
* CWR (> 0.10 Inch)...30 percent.

.TUESDAY...Mostly cloudy with chance of rain showers and thunderstorms.
Lows 45-55. Highs 75-85. Variable winds up to 10 mph.
.WEDNESDAY...Partly cloudy with chance of rain showers and
thunderstorms. Lows 50-60. Highs 70-80. East winds 5-10 mph.
.THURSDAY...Mostly cloudy with chance of rain showers and slight chance
of thunderstorms. Lows 50-60. Highs 70-80. Southeast winds 5-10 mph.
.FRIDAY...Partly cloudy. Slight chance of rain showers and
thunderstorms. Lows 50-60. Highs 75-85.
.SATURDAY...Partly cloudy. Lows 50-60. Highs 75-85.

$$

MTZ109-211000-
Bitterroot-
352 AM MDT Sun May 20 2018

.TODAY...
* Sky/Weather.........Mostly cloudy. Slight chance of thunderstorms
  in the afternoon.
* Max Temperature.....70-75 valleys and 60-65 ridges.
* Min Humidity........26-36 percent valleys and 35-45 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Variable less than 7 mph.
*     Ridge Top............South 5-10 mph becoming northeast up to 5
      mph late in the afternoon.
* Haines Index........3 very low.
* LAL.................3.
* CWR (> 0.10 Inch)...20 percent.

.TONIGHT...
* Sky/Weather.........Mostly cloudy. Chance of thunderstorms in the
  evening. Rain showers likely.
* Min Temperature.....40-45.
* Max Humidity........84-94 percent valleys and 91-97 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Variable less than 5 mph.
*     Ridge Top............Southeast 5-10 mph becoming south up to 5
      mph early in the morning.
* LAL.................3.
* CWR (> 0.10 Inch)...40 percent.

.MONDAY...
* Sky/Weather.........Mostly cloudy. Rain showers. Chance of
  thunderstorms in the afternoon.
* Max Temperature.....70-75 valleys and 55-65 ridges.
* Min Humidity........40-50 percent valleys and 56-66 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Variable less than 7 mph.
*     Ridge Top............Northwest 5-10 mph.
* Haines Index........3 very low.
* LAL.................3.
* CWR (> 0.10 Inch)...50 percent.

.TUESDAY...Mostly cloudy with chance of thunderstorms and slight chance
of rain showers. Lows 40-50. Highs 65-75. Variable winds up to 10 mph.
.WEDNESDAY...Mostly cloudy with chance of rain showers and
thunderstorms. Lows 45-55. Highs 65-75. East winds 5-10 mph.
.THURSDAY...Mostly cloudy with chance of rain showers and slight chance
of thunderstorms. Lows 45-55. Highs 65-75. South winds 5-10 mph.
.FRIDAY...Partly cloudy. Slight chance of rain showers and
thunderstorms. Lows 45-55. Highs 70-80.
.SATURDAY...Partly cloudy. Slight chance of rain showers. Lows 45-55.
Highs 70-80.

$$

MTZ110-111-211000-
Deerlodge/West Beaverhead-East Beaverhead-
352 AM MDT Sun May 20 2018

.TODAY...
* Sky/Weather.........Partly cloudy. Slight chance of thunderstorms
  in the afternoon.
* Max Temperature.....60-70 valleys and 55-60 ridges.
* Min Humidity........36-46 percent.
* 20-Foot Winds.......
*     Lower Elevation......Variable less than 7 mph.
*     Ridge Top............South 5-10 mph.
* Haines Index........3 very low.
* LAL.................2.
* CWR (> 0.10 Inch)...10 percent.

.TONIGHT...
* Sky/Weather.........Mostly cloudy. Chance of rain showers and
  slight chance of thunderstorms.
* Min Temperature.....35-45.
* Max Humidity........86-96 percent.
* 20-Foot Winds.......
*     Lower Elevation......South 5-10 mph.
*     Ridge Top............South 5-10 mph.
* LAL.................2.
* CWR (> 0.10 Inch)...10 percent.

.MONDAY...
* Sky/Weather.........Mostly cloudy. Rain showers likely and chance
  of thunderstorms.
* Max Temperature.....65-75 valleys and 55-65 ridges.
* Min Humidity........39-49 percent valleys and 46-56 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Variable less than 7 mph.
*     Ridge Top............Southwest 5-10 mph.
* Haines Index........3 very low.
* LAL.................3.
* CWR (> 0.10 Inch)...60 percent in the Deerlodge/West
  Beaverhead...and 40 percent in the East Beaverhead.

.TUESDAY...Mostly cloudy with chance of rain showers and thunderstorms.
Lows 40-50. Highs 65-75. Northeast winds 5-10 mph.
.WEDNESDAY...Mostly cloudy with chance of rain showers and
thunderstorms. Lows 45-55. Highs 60-70. Northeast winds 5-15 mph.
.THURSDAY...Mostly cloudy with chance of rain showers and
thunderstorms. Lows 40-50. Highs 65-75. Southwest winds 5-10 mph.
.FRIDAY...Partly cloudy. Slight chance of rain showers and
thunderstorms. Lows 40-50. Highs 70-80.
.SATURDAY...Partly cloudy. Slight chance of rain showers and
thunderstorms. Lows 40-50. Highs 70-80.

$$



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