National Weather Service Text Product
AFOS product FWFMSO
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: FWFMSO
Product Timestamp: 2021-09-09 21:03 UTC
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907
FNUS55 KMSO 092103
FWFMSO
Fire Weather Planning Forecast for Wrn Montana and N Cntrl Idaho
National Weather Service Missoula MT
303 PM MDT Thu Sep 9 2021
...RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT THIS EVENING for
Deerlodge/West Beaverhead...East Beaverhead...
.DISCUSSION...
Idaho: A few showers are possible this evening into the overnight hours.
They initially won't bring much rain, but could bring some gusty outflow
winds. A pattern change is still on track for tomorrow, with showers and
thunderstorms developing through Friday afternoon and evening. On top of
the threat of gusty winds with storms, wetting rains still look likely.
In fact, much of the area should see between 0.25" to 0.50" by Saturday
morning. A few thunderstorms Friday afternoon could produce locally
heavy rain, which may cause run off on recent burn scars. Cool and
relatively moist conditions are anticipated Saturday with improved air
quality. Near normal temperatures, with breezy and dry afternoons are
anticipated for much of next week, though not as dry as this week.
Montana: For the Beaverhead/Deerlodge NF...Critical fire weather
conditions are still anticipated through early evening due to gusty
winds and low RHs. A few showers are possible this evening into the
overnight hours. They initially won't bring much rain, but could bring
some gusty outflow winds.
For all of western Montana: A pattern change is still on track for
tomorrow, with showers and thunderstorms developing Friday afternoon and
lingering into Saturday morning. On top of the threat of gusty winds
with storms, wetting rains still look likely from Butte to Lost Trail
Pass and northward. The heaviest precipitation is expected across west-
central and northwest Montana, where much of the area should see between
0.25" to 0.50" by Saturday morning. Southwest Montana will see lesser
amounts. A few thunderstorms Friday afternoon and evening could produce
locally heavy rain, which may cause run off on recent burn scars. Cool
and relatively moist conditions are anticipated Saturday with improved
air quality. Near normal temperatures, with breezy and dry afternoons
are anticipated for much of next week, though not as dry as this week.
View Fire Weather Briefing videos on our YouTube channel
at https://www.youtube.com/NWSMissoula
IDZ102-103-102115-
Palouse/Hells Canyon-Clearwater/Nez Perce-
203 PM PDT Thu Sep 9 2021
.TONIGHT...
* Sky/Weather.........Partly cloudy then becoming mostly cloudy. Areas
of smoke and haze. Slight chance of rain showers.
* Min Temperature.....55-65.
* Max Humidity........49-59 percent.
* 20-Foot Winds.......
* Lower Elevation......West 5-10 mph becoming variable less than 5
mph after midnight.
* Ridge Top............Southwest 5-15 mph.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.
.FRIDAY...
* Sky/Weather.........Mostly cloudy. Haze in the morning. Areas of
smoke. Rain showers likely. Slight chance of thunderstorms in the
afternoon.
* Max Temperature.....80-90 valleys and 65-75 ridges.
* Min Humidity........39-49 percent.
* 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)...50 percent in the Palouse/Hells Canyon...and
20 percent in the Clearwater/Nez Perce.
.FRIDAY NIGHT...
* Sky/Weather.........Mostly cloudy. Rain showers and chance of
thunderstorms.
* Min Temperature.....50-55 valleys and 40-50 ridges.
* Max Humidity........78-88 percent.
* 20-Foot Winds.......
* Lower Elevation......Variable less than 5 mph.
* Ridge Top............West 5-15 mph.
* LAL.................3.
* CWR (> 0.10 Inch)...80 percent.
.SATURDAY...
* Sky/Weather.........Partly cloudy. Slight chance of rain showers
and thunderstorms.
* Max Temperature.....73-83 valleys and 55-65 ridges.
* Min Humidity........36-46 percent valleys and 44-54 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Variable less than 7 mph.
* Ridge Top............West 5-15 mph.
* Haines Index........2 very low.
* LAL.................1 in the Palouse/Hells Canyon...and 2 in the
Clearwater/Nez Perce.
* CWR (> 0.10 Inch)...0 percent.
.SUNDAY...Partly cloudy. Lows 45-55. Highs 70-80. Southwest winds
5-10 mph.
.MONDAY...Partly cloudy with slight chance of rain. Lows 45-55. Highs
65-75. West winds 5-10 mph.
.TUESDAY...Mostly clear. Lows 40-50. Highs 65-75. Southwest winds
5-10 mph.
.WEDNESDAY...Partly cloudy. Slight chance of rain. Lows 45-55. Highs
65-75.
.THURSDAY...Partly cloudy. Slight chance of rain. Lows 40-50. Highs
60-70.
$$
MTZ104-105-102115-
Kootenai-Flathead/Glacier Park-
303 PM MDT Thu Sep 9 2021
.TONIGHT...
* Sky/Weather.........Partly cloudy. Patchy smoke.
* Min Temperature.....50-60.
* Max Humidity........71-81 percent valleys and 53-63 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......West 10-15 mph becoming variable less than 5
mph late in the evening.
* Ridge Top............West 15-25 mph becoming southwest 5-15 mph
in the late evening and overnight.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.
.FRIDAY...
* Sky/Weather.........Partly cloudy. Patchy smoke.
* Max Temperature.....80-85 valleys and 65-75 ridges.
* Min Humidity........23-33 percent valleys and 36-46 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Upslope/upvalley 4-8 mph late in the
afternoon.
* Ridge Top............West 5-15 mph decreasing to up to 5 mph
early in the afternoon, then becoming southeast 5-10 mph late
in the afternoon.
* Haines Index........2 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.
.FRIDAY NIGHT...
* Sky/Weather.........Cloudy. Rain showers and slight chance of
thunderstorms.
* Min Temperature.....45-55.
* Max Humidity........100 percent valleys and 88-98 percent ridges.
* 20-Foot Winds.......
* Lower Elevation......Variable less than 5 mph in the evening
becoming downslope/downvalley 1-3 mph.
* Ridge Top............Southwest 5-15 mph.
* LAL.................2 in the Kootenai...and 3 in the
Flathead/Glacier Park.
* CWR (> 0.10 Inch)...90 percent.
.SATURDAY...
* Sky/Weather.........Mostly cloudy. Rain showers likely and slight
chance of thunderstorms.
* Max Temperature.....65-70 valleys and 50-60 ridges.
* Min Humidity........53-63 percent valleys and 76-86 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Variable less than 7 mph.
* Ridge Top............West 10-15 mph.
* Haines Index........2 very low.
* LAL.................1 in the Kootenai...and 2 in the
Flathead/Glacier Park.
* CWR (> 0.10 Inch)...10 percent in the Kootenai...and 50 percent
in the Flathead/Glacier Park.
.SUNDAY...Partly cloudy. Lows 45-55. Highs 60-70. Southwest winds
10-15 mph.
.MONDAY...Partly cloudy with slight chance of rain. Lows 45-55. Highs
60-70. West winds 10-15 mph.
.TUESDAY...Mostly clear. Lows 40-50. Highs 60-70. Southwest winds
10-15 mph.
.WEDNESDAY...Partly cloudy. Chance of rain. Lows 45-55. Highs 55-65.
.THURSDAY...Partly cloudy. Slight chance of rain. Lows 40-50. Highs
55-65.
$$
MTZ106-108-102115-
West Lolo-East Lolo-
303 PM MDT Thu Sep 9 2021
.TONIGHT...
* Sky/Weather.........Partly cloudy. Areas of smoke.
* Min Temperature.....48-58 valleys and 55-60 ridges.
* Max Humidity........62-72 percent valleys and 50-60 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Northwest 10-20 mph early in the evening
becoming downslope/downvalley 2-5 mph.
* Ridge Top............West 10-20 mph becoming southwest 5-15 mph
in the late evening and overnight.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.
.FRIDAY...
* Sky/Weather.........Partly cloudy. Areas of smoke. Slight chance of
rain in the morning. Slight chance of thunderstorms in the afternoon.
* Max Temperature.....73-83.
* Min Humidity........25-35 percent valleys and 31-41 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Becoming upslope/upvalley 4-8 mph in the
afternoon.
* Ridge Top............West 5-10 mph becoming east up to 5 mph
early in the afternoon, then becoming southwest 5-10 mph late
in the afternoon.
* Haines Index........3 very low.
* LAL.................1 in the West Lolo...and 2 in the East Lolo.
* CWR (> 0.10 Inch)...10 percent.
.FRIDAY NIGHT...
* Sky/Weather.........Cloudy. Rain showers and chance of
thunderstorms.
* Min Temperature.....45-55.
* Max Humidity........82-92 percent.
* 20-Foot Winds.......
* Lower Elevation......Variable less than 5 mph.
* Ridge Top............West 5-15 mph.
* LAL.................3.
* CWR (> 0.10 Inch)...90 percent.
.SATURDAY...
* Sky/Weather.........Mostly cloudy. Chance of rain showers and
slight chance of thunderstorms.
* Max Temperature.....58-68.
* Min Humidity........40-50 percent valleys and 48-58 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Variable less than 7 mph.
* Ridge Top............West 5-15 mph.
* Haines Index........2 very low.
* LAL.................1 in the West Lolo...and 2 in the East Lolo.
* CWR (> 0.10 Inch)...0 percent.
.SUNDAY...Partly cloudy. Lows 45-55. Highs 65-75. Southwest winds
5-10 mph.
.MONDAY...Partly cloudy with slight chance of rain. Lows 45-55. Highs
65-75. West winds 5-10 mph.
.TUESDAY...Mostly clear. Lows 40-50. Highs 65-75. West winds 5-10 mph.
.WEDNESDAY...Partly cloudy. Slight chance of rain. Lows 45-55. Highs
60-70.
.THURSDAY...Partly cloudy. Slight chance of rain. Lows 40-50. Highs
55-65.
$$
MTZ107-102115-
Salish and Kootenai Reservation-
303 PM MDT Thu Sep 9 2021
.TONIGHT...
* Sky/Weather.........Partly cloudy then becoming mostly cloudy.
Patchy smoke.
* Min Temperature.....55-60.
* Max Humidity........53-63 percent.
* 20-Foot Winds.......
* Lower Elevation......West 5-15 mph early in the evening becoming
downslope/downvalley 2-5 mph.
* Ridge Top............West 15-25 mph becoming southwest 5-15 mph
in the late evening and overnight.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.
.FRIDAY...
* Sky/Weather.........Partly cloudy. Patchy smoke in the morning.
Areas of smoke in the afternoon.
* Max Temperature.....85-90 valleys and 65-70 ridges.
* Min Humidity........28-38 percent valleys and 34-44 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Becoming upslope/upvalley 4-8 mph in the
afternoon.
* Ridge Top............West 5-15 mph becoming north 5-10 mph early
in the afternoon, then becoming east late in the afternoon.
* Haines Index........3 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.
.FRIDAY NIGHT...
* Sky/Weather.........Cloudy. Rain showers and slight chance of
thunderstorms.
* Min Temperature.....50-55 valleys and 40-45 ridges.
* Max Humidity........84-94 percent.
* 20-Foot Winds.......
* Lower Elevation......Variable less than 5 mph.
* Ridge Top............West 5-15 mph.
* LAL.................3.
* CWR (> 0.10 Inch)...90 percent.
.SATURDAY...
* Sky/Weather.........Mostly cloudy. Chance of rain showers and
slight chance of thunderstorms. Slight chance of rain in the
afternoon.
* Max Temperature.....70-75 valleys and 50-55 ridges.
* Min Humidity........47-57 percent valleys and 63-73 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Variable less than 7 mph.
* Ridge Top............West 10-15 mph.
* Haines Index........2 very low.
* LAL.................2.
* CWR (> 0.10 Inch)...10 percent.
.SUNDAY...Partly cloudy. Lows 45-55. Highs 70-80. Southwest winds
5-10 mph.
.MONDAY...Partly cloudy with slight chance of rain. Lows 45-55. Highs
65-75. West winds 5-10 mph.
.TUESDAY...Mostly clear. Lows 45-55. Highs 65-75. Southwest winds
5-10 mph.
.WEDNESDAY...Partly cloudy. Slight chance of rain. Lows 45-55. Highs
65-75.
.THURSDAY...Partly cloudy. Slight chance of rain. Lows 40-50. Highs
60-70.
$$
MTZ109-102115-
Bitterroot-
303 PM MDT Thu Sep 9 2021
.TONIGHT...
* Sky/Weather.........Partly cloudy then becoming mostly cloudy
then becoming partly cloudy. Areas of smoke.
* Min Temperature.....55-60.
* Max Humidity........61-71 percent valleys and 44-54 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Northwest 5-15 mph becoming variable less
than 5 mph in the late evening and overnight.
* Ridge Top............West 10-20 mph becoming southwest 5-15 mph
in the late evening and overnight.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.
.FRIDAY...
* Sky/Weather.........Partly cloudy. Areas of smoke. Slight chance
of rain in the morning. Chance of rain showers and slight chance
of thunderstorms in the afternoon.
* Max Temperature.....85-90 valleys and 70-75 ridges.
* Min Humidity........30-40 percent.
* 20-Foot Winds.......
* Lower Elevation......Variable less than 7 mph.
* Ridge Top............Southwest 5-10 mph.
* Haines Index........4 low.
* LAL.................3.
* CWR (> 0.10 Inch)...10 percent.
.FRIDAY NIGHT...
* Sky/Weather.........Mostly cloudy. Rain showers and chance of
thunderstorms.
* Min Temperature.....45-50.
* Max Humidity........98-100 percent valleys and 83-93 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......West 5-10 mph becoming variable less than 5
mph in the late evening and overnight.
* Ridge Top............West 5-15 mph.
* LAL.................3.
* CWR (> 0.10 Inch)...70 percent.
.SATURDAY...
* Sky/Weather.........Partly cloudy. Slight chance of rain showers
and thunderstorms.
* Max Temperature.....70-75 valleys and 55-60 ridges.
* Min Humidity........35-45 percent.
* 20-Foot Winds.......
* Lower Elevation......Variable less than 7 mph.
* Ridge Top............West 5-15 mph.
* Haines Index........2 very low.
* LAL.................2.
* CWR (> 0.10 Inch)...0 percent.
.SUNDAY...Partly cloudy. Lows 45-55. Highs 65-75. Southwest winds
5-10 mph.
.MONDAY...Partly cloudy with chance of rain. Lows 45-55. Highs 60-70.
West winds 5-10 mph.
.TUESDAY...Mostly clear. Lows 40-50. Highs 60-70. West winds 5-10 mph.
.WEDNESDAY...Partly cloudy. Slight chance of rain. Lows 45-55. Highs
60-70.
.THURSDAY...Partly cloudy. Slight chance of rain and snow. Lows 40-50.
Highs 55-65.
$$
MTZ110-111-102115-
Deerlodge/West Beaverhead-East Beaverhead-
303 PM MDT Thu Sep 9 2021
...RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT THIS EVENING...
.TONIGHT...
* Sky/Weather.........Partly cloudy. Slight chance of showers. Areas of
smoke.
* Min Temperature.....43-53 valleys and 50-55 ridges.
* Max Humidity........57-67 percent valleys and 36-46 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......West 10-20 mph becoming southwest 5-10 mph
in the late evening and overnight.
* Ridge Top............West 10-20 mph becoming southwest 5-10 mph
after midnight.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.
.FRIDAY...
* Sky/Weather.........Partly cloudy. Areas of smoke. Chance of rain
showers and slight chance of thunderstorms in the afternoon.
* Max Temperature.....80-85 valleys and 70-75 ridges.
* Min Humidity........20-30 percent.
* 20-Foot Winds.......
* Lower Elevation......South 10-20 mph.
* Ridge Top............South 5-10 mph increasing to southwest 15-25
mph in the afternoon.
* Haines Index........4 low.
* LAL.................3.
* CWR (> 0.10 Inch)...10 percent.
.FRIDAY NIGHT...
* Sky/Weather.........Mostly cloudy then becoming partly cloudy.
Rain showers likely and chance of thunderstorms.
* Min Temperature.....40-50.
* Max Humidity........91-100 percent valleys and 73-83 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Southwest 5-15 mph.
* Ridge Top............Southwest 10-20 mph.
* LAL.................3.
* CWR (> 0.10 Inch)...30 percent.
.SATURDAY...
* Sky/Weather.........Partly cloudy. Slight chance of rain showers.
* Max Temperature.....65-75 valleys and 60-65 ridges.
* Min Humidity........26-36 percent.
* 20-Foot Winds.......
* Lower Elevation......West 5-15 mph.
* Ridge Top............West 5-15 mph.
* Haines Index........2 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...10 percent.
.SUNDAY...Mostly clear. Lows 40-50. Highs 70-80. West winds 10-15 mph.
.MONDAY...Cooler. Partly cloudy with chance of rain showers. Lows
45-55. Highs 60-70. West winds 10-15 mph.
.TUESDAY...Partly cloudy. Lows 40-50. Highs 65-75. West winds
10-15 mph.
.WEDNESDAY...Mostly clear. Lows 40-50. Highs 65-75.
.THURSDAY...Cooler. Partly cloudy. Slight chance of rain showers. Lows
35-45. Highs 55-65.
$$