094 
FNUS55 KPIH 172002
FWFPIH

Fire Weather Planning Forecast for Southeast Idaho
National Weather Service Pocatello ID
202 PM MDT Fri Sep 17 2021

...RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT SATURDAY FOR GUSTY 
WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 410, 411, 
422, 475 AND 476... 
...RED FLAG WARNING IN EFFECT FROM 1 PM TO 9 PM MDT SATURDAY FOR 
GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 425 
AND 427...

.DISCUSSION...

* Central Idaho Dispatch Area weather impact summary (Zones 475
and 476)...

...RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT SATURDAY FOR GUSTY 
WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 475 AND
476...

Gusty winds and low humidity are likely through Saturday evening.
A strong cold front will enter the region on Sunday, bringing
precipitation and higher humidities to the area. Although winds
may remain gusty through Sunday.

* East Idaho Dispatch Area weather impact summary (Zones 410...411
and 413)...

...RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT SATURDAY FOR GUSTY 
WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 410 AND 
411...

Gusty winds and low humidity are likely through Saturday evening.
Isolated thunderstorms are possible Saturday afternoon. A strong 
cold front will enter the region on Sunday, bringing precipitation
and higher humidities to the area. Although winds may remain 
gusty through Sunday.

* South Central Idaho Dispatch Area weather impact summary (Zones
422...425 and 427)...

...RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT SATURDAY FOR GUSTY 
WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 422...
...RED FLAG WARNING IN EFFECT FROM 1 PM TO 9 PM MDT SATURDAY FOR 
GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 425 
AND 427...

Gusty winds and low humidity are likely through Saturday evening.
A strong cold front will enter the region on Sunday, bringing
precipitation and higher humidities to the area. Although winds
may remain gusty through Sunday.

IDZ475-181030-
East Salmon River Mountains/Salmon NF-
202 PM MDT Fri Sep 17 2021

...RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT SATURDAY FOR GUSTY
WINDS AND LOW RELATIVE HUMIDITY...

.Tonight...
* Sky/weather........Clear. Haze and areas of smoke. 
* Min Temperature....44-51. 
    24 hr trend......11 degrees up. 
* Max Humidity.......30-38 percent valleys and 28-34 percent 
  ridges. 
    24 hr trend......2 percent up. 
* 20ft winds......... 
    Valleys/lwr slopes...Southwest 11 to 16 mph. 
    Ridges/upr slopes....Southwest 11 to 16 mph with gusts to 
*                          around 25 mph. 
* Chc Wetting Rain...0 percent. 
* LAL................1. 
* Haines Index.......4. 
* Mixing Height......100-1100 ft AGL. 
* Transport Winds....Southwest 15 to 20 mph. 

.SATURDAY...
* Sky/weather........Mostly sunny. Haze through the day. Areas of 
  smoke in the afternoon. Slight chance of rain in the afternoon. 
* Max Temperature....67-74 valleys and 58-65 ridges. 
    24 hr trend......Little change. 
* Min Humidity.......14-21 percent. 
    24 hr trend......5 percent up. 
* 20ft winds......... 
    Valleys/lwr slopes...Southwest 7 to 12 mph increasing to 12 to 
*                          22 mph in the afternoon. 
    Ridges/upr slopes....Breezy. Southwest 10 to 15 mph with gusts 
*                          to around 25 mph increasing to 16 to 26 
*                          mph with gusts to around 40 mph in the 
*                          afternoon. 
* Chc Wetting Rain...0 percent. 
* LAL................1. 
* Haines Index.......4. 
* Mixing Height......10250-11250 ft AGL. 
* Transport Winds....South around 20 mph increasing to southwest 
  around 35 mph in the afternoon. 

.SATURDAY NIGHT...
* Sky/weather........Mostly cloudy. Chance of rain showers in the 
  evening, then rain showers after midnight. 
* Min Temperature....34-41. 
    24 hr trend......11 degrees down. 
* Max Humidity.......71-79 percent. 
    24 hr trend......42 percent up. 
* 20ft winds......... 
    Valleys/lwr slopes...West 13 to 23 mph shifting to the 
*                          southwest 6 to 11 mph after midnight. 
    Ridges/upr slopes....Southwest 12 to 22 mph. Gusts up to 40 mph 
*                          decreasing to 20 mph after midnight. 
* Chc Wetting Rain...50 percent. 
* LAL................1. 
* Haines Index.......4. 
* Mixing Height......400-1400 ft AGL. 
* Transport Winds....Southwest around 30 mph decreasing to around 
  15 mph after midnight. 

.SUNDAY...
* Sky/weather........Cloudy. Rain showers and snow showers through 
  the day. Slight chance of thunderstorms in the afternoon. 
* Max Temperature....45-52 valleys and 35-42 ridges. 
    24 hr trend......22 degrees down. 
* Min Humidity.......55-63 percent valleys and 60-68 percent 
  ridges. 
    24 hr trend......44 percent up. 
* 20ft winds......... 
    Valleys/lwr slopes...Southwest 4 to 8 mph. 
    Ridges/upr slopes....Southwest 6 to 11 mph with gusts to around 
*                          20 mph. 
* Chc Wetting Rain...80 percent. 
* LAL................1, then 2 in the afternoon. 
* Haines Index.......3. 
* Mixing Height......5750-6750 ft AGL. 
* Transport Winds....Southwest around 15 mph. 


.Forecast days 3 through 7......
.MONDAY...Showers likely with possible snow showers and
thunderstorms. Lows 29 to 36. Highs 45 to 52. West winds 10 to
15 mph with gusts to around 20 mph. 
.TUESDAY...Warmer, clear. Lows 28 to 35. Highs 58 to 65.
Southwest winds 5 to 10 mph with gusts to around 15 mph. 
.WEDNESDAY...Mostly clear. Lows 35 to 42. Highs 60 to 67.
Southwest winds 10 to 15 mph with gusts to around 25 mph. 
.THURSDAY...Partly cloudy with slight chance of rain. Lows in the
upper 30s. Highs in the upper 50s. 
.FRIDAY...Partly cloudy. Lows in the upper 30s. Highs around 60. 

$$

IDZ476-181030-
Lemhi and Lost River Range/Challis NF-
202 PM MDT Fri Sep 17 2021

...RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT SATURDAY FOR GUSTY
WINDS AND LOW RELATIVE HUMIDITY...

.Tonight...
* Sky/weather........Clear. Haze after midnight. 
* Min Temperature....43-50. 
    24 hr trend......11 degrees up. 
* Max Humidity.......31-39 percent valleys and 26-32 percent 
  ridges. 
    24 hr trend......Little change. 
* 20ft winds......... 
    Valleys/lwr slopes...South 12 to 17 mph. 
    Ridges/upr slopes....Southwest 13 to 18 mph. Gusts up to 30 mph 
*                          decreasing to 20 mph after midnight. 
* Chc Wetting Rain...0 percent. 
* LAL................1. 
* Haines Index.......4. 
* Mixing Height......100-1100 ft AGL. 
* Transport Winds....South 15 to 20 mph. 

.SATURDAY...
* Sky/weather........Mostly sunny. Haze. 
* Max Temperature....69-76 valleys and 58-65 ridges. 
    24 hr trend......Little change. 
* Min Humidity.......12-20 percent. 
    24 hr trend......3 percent up. 
* 20ft winds......... 
    Valleys/lwr slopes...Breezy. South 9 to 14 mph increasing to 
*                          southwest 17 to 27 mph in the afternoon. 
    Ridges/upr slopes....Breezy. Southwest 11 to 16 mph with gusts 
*                          to around 25 mph increasing to 19 to 29 
*                          mph with gusts to around 45 mph in the 
*                          afternoon. 
* Chc Wetting Rain...0 percent. 
* LAL................1. 
* Haines Index.......5. 
* Mixing Height......10750-11750 ft AGL. 
* Transport Winds....South around 20 mph increasing to southwest 
  around 35 mph in the afternoon. 

.SATURDAY NIGHT...
* Sky/weather........Partly cloudy then becoming mostly cloudy. 
  Slight chance of rain showers in the evening, then chance of rain 
  showers after midnight. 
* Min Temperature....34-41. 
    24 hr trend......9 degrees down. 
* Max Humidity.......62-70 percent. 
    24 hr trend......33 percent up. 
* 20ft winds......... 
    Valleys/lwr slopes...Breezy. Southwest 19 to 29 mph decreasing 
*                          to 7 to 12 mph after midnight. 
    Ridges/upr slopes....Breezy. Southwest 18 to 28 mph with gusts 
*                          to around 50 mph decreasing to 12 to 17 
*                          mph with gusts to around 25 mph after 
*                          midnight. 
* Chc Wetting Rain...20 percent. 
* LAL................1. 
* Haines Index.......5. 
* Mixing Height......100-1100 ft AGL. 
* Transport Winds....Southwest around 30 mph decreasing to around 
  15 mph after midnight. 

.SUNDAY...
* Sky/weather........Cloudy. Rain showers and snow showers through 
  the day. Slight chance of thunderstorms in the afternoon. 
* Max Temperature....47-54 valleys and 37-44 ridges. 
    24 hr trend......21 degrees down. 
* Min Humidity.......46-54 percent valleys and 50-58 percent 
  ridges. 
    24 hr trend......33 percent up. 
* 20ft winds......... 
    Valleys/lwr slopes...Southwest 7 to 12 mph. 
    Ridges/upr slopes....Southwest 10 to 15 mph with gusts to 
*                          around 20 mph. 
* Chc Wetting Rain...80 percent. 
* LAL................1, then 2 in the afternoon. 
* Haines Index.......3. 
* Mixing Height......7000-8000 ft AGL. 
* Transport Winds....West around 15 mph. 


.Forecast days 3 through 7......
.MONDAY...Partly cloudy. Chance of snow showers and slight chance
of thunderstorms. Lows 27 to 34. Highs 44 to 51. Northwest winds
10 to 15 mph with gusts to around 25 mph. 
.TUESDAY...Warmer, clear. Lows 27 to 34. Highs 56 to 63.
Southwest winds 5 to 10 mph with gusts to around 15 mph. 
.WEDNESDAY...Mostly clear. Lows 34 to 41. Highs 60 to 67. South
winds 10 to 15 mph with gusts to around 25 mph. 
.THURSDAY...Partly cloudy. Lows in the upper 30s. Highs in the
upper 50s. 
.FRIDAY...Mostly clear. Lows in the mid 30s. Highs around 60. 

$$

IDZ422-181030-
Sawtooth Range/Northern Sawtooth NF-
202 PM MDT Fri Sep 17 2021

...RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT SATURDAY FOR GUSTY
WINDS AND LOW RELATIVE HUMIDITY...

.Tonight...
* Sky/weather........Clear. 
* Min Temperature....42-49. 
    24 hr trend......8 degrees up. 
* Max Humidity.......33-41 percent valleys and 28-36 percent 
  ridges. 
    24 hr trend......2 percent up. 
* 20ft winds......... 
    Valleys/lwr slopes...Southwest 9 to 14 mph shifting to the 
*                          northeast 4 to 7 mph after midnight. 
    Ridges/upr slopes....South 9 to 14 mph with gusts to around 25 
*                          mph. 
* Chc Wetting Rain...0 percent. 
* LAL................1. 
* Haines Index.......4. 
* Mixing Height......100-1100 ft AGL. 
* Transport Winds....Southwest around 15 mph shifting to the 
  southeast after midnight. 

.SATURDAY...
* Sky/weather........Mostly sunny. 
* Max Temperature....68-75 valleys and 57-64 ridges. 
    24 hr trend......Little change. 
* Min Humidity.......12-17 percent valleys and 15-22 percent 
  ridges. 
    24 hr trend......3 percent up. 
* 20ft winds......... 
    Valleys/lwr slopes...Southwest 6 to 9 mph increasing to 10 to 
*                          20 mph in the afternoon. 
    Ridges/upr slopes....Southwest 13 to 23 mph. Gusts up to 25 mph 
*                          increasing to 35 mph in the afternoon. 
* Chc Wetting Rain...0 percent. 
* LAL................1. 
* Haines Index.......5. 
* Mixing Height......11000-12000 ft AGL. 
* Transport Winds....South around 10 mph increasing to southwest 
  around 35 mph in the afternoon. 

.SATURDAY NIGHT...
* Sky/weather........Partly cloudy then becoming mostly cloudy. 
  Chance of rain showers through the night. 
* Min Temperature....34-41. 
    24 hr trend......8 degrees down. 
* Max Humidity.......69-77 percent. 
    24 hr trend......37 percent up. 
* 20ft winds......... 
    Valleys/lwr slopes...Southwest 13 to 18 mph. 
    Ridges/upr slopes....Southwest 11 to 21 mph. Gusts up to 35 mph 
*                          decreasing to 20 mph after midnight. 
* Chc Wetting Rain...30 percent. 
* LAL................1. 
* Haines Index.......5. 
* Mixing Height......100-1100 ft AGL. 
* Transport Winds....Southwest around 25 mph becoming west around 
  10 mph after midnight. 

.SUNDAY...
* Sky/weather........Cloudy. Rain showers in the morning. Snow 
  showers through the day. Rain showers likely and slight chance of 
  thunderstorms in the afternoon. 
* Max Temperature....46-53 valleys and 35-42 ridges. 
    24 hr trend......22 degrees down. 
* Min Humidity.......51-59 percent valleys and 59-67 percent 
  ridges. 
    24 hr trend......39 percent up. 
* 20ft winds......... 
    Valleys/lwr slopes...West 11 to 16 mph. 
    Ridges/upr slopes....Southwest 7 to 12 mph with gusts to around 
*                          20 mph. 
* Chc Wetting Rain...80 percent. 
* LAL................1, then 2 in the afternoon. 
* Haines Index.......3. 
* Mixing Height......5000-6000 ft AGL. 
* Transport Winds....West around 10 mph increasing to around 20 mph 
  in the afternoon. 


.Forecast days 3 through 7......
.MONDAY...Mostly clear. Lows 25 to 32. Highs 47 to 54. Northwest
winds 10 to 20 mph with gusts to around 30 mph. 
.TUESDAY...Clear. Lows 27 to 34. Highs 55 to 62. Southwest winds
5 to 10 mph with gusts to around 15 mph. 
.WEDNESDAY...Mostly clear. Lows 34 to 41. Highs 60 to 67.
Southwest winds 10 to 15 mph with gusts to around 20 mph. 
.THURSDAY...Partly cloudy. Lows in the upper 30s. Highs around
60. 
.FRIDAY...Mostly clear. Lows in the mid 30s. Highs in the lower
60s. 

$$

IDZ425-181030-
Middle Snake River Valley/Twin Falls BLM north of the Snake River-
202 PM MDT Fri Sep 17 2021

...RED FLAG WARNING IN EFFECT FROM 1 PM TO 9 PM MDT SATURDAY FOR
GUSTY WINDS AND LOW RELATIVE HUMIDITY...

.Tonight...
* Sky/weather........Clear. 
* Min Temperature....46-53. 
    24 hr trend......11 degrees up. 
* Max Humidity.......40-48 percent. 
    24 hr trend......2 percent down. 
* 20ft winds.........East winds 7 to 12 mph with gusts to around 20 
  mph. 
* Chc Wetting Rain...0 percent. 
* LAL................1. 
* Haines Index.......5. 
* Mixing Height......100-1100 ft AGL. 
* Transport Winds....Southeast around 10 mph. 

.SATURDAY...
* Sky/weather........Mostly sunny. 
* Max Temperature....Around 80. 
    24 hr trend......Little change. 
* Min Humidity.......12-20 percent. 
    24 hr trend......2 percent up. 
* 20ft winds.........Southwest winds 14 to 19 mph. Gusts up to 20 
  mph increasing to 30 mph in the afternoon. 
* Chc Wetting Rain...0 percent. 
* LAL................1. 
* Haines Index.......5. 
* Mixing Height......13500-14500 ft AGL. 
* Transport Winds....South around 10 mph increasing to southwest 
  around 25 mph in the afternoon. 

.SATURDAY NIGHT...
* Sky/weather........Mostly clear. Slight chance of rain showers 
  after midnight. 
* Min Temperature....Around 46. 
    24 hr trend......5 degrees down. 
* Max Humidity.......72-80 percent. 
    24 hr trend......30 percent up. 
* 20ft winds.........Southwest winds 13 to 18 mph. Gusts up to 30 
  mph decreasing to 20 mph after midnight. 
* Chc Wetting Rain...0 percent. 
* LAL................1. 
* Haines Index.......5. 
* Mixing Height......100-1100 ft AGL. 
* Transport Winds....Southwest around 25 mph decreasing to around 
  15 mph after midnight. 

.SUNDAY...
* Sky/weather........Mostly cloudy. Rain showers likely. 
* Max Temperature....Around 57. 
    24 hr trend......23 degrees down. 
* Min Humidity.......46-54 percent. 
    24 hr trend......34 percent up. 
* 20ft winds.........West winds 13 to 18 mph. Gusts up to 20 mph 
  increasing to 30 mph in the afternoon. 
* Chc Wetting Rain...50 percent. 
* LAL................1. 
* Haines Index.......3. 
* Mixing Height......5750-6750 ft AGL. 
* Transport Winds....West around 15 mph increasing to around 25 mph 
  in the afternoon. 


.Forecast days 3 through 7......
.MONDAY...Clear. Lows 32 to 37. Highs in the upper 50s. West
winds 10 to 20 mph with gusts to around 30 mph. 
.TUESDAY...Clear. Lows in the mid 30s. Highs in the upper 60s.
South winds 5 to 10 mph with gusts to around 15 mph. 
.WEDNESDAY...Mostly clear. Lows 37 to 42. Highs in the mid 70s.
East winds 10 to 15 mph with gusts to around 20 mph. 
.THURSDAY...Partly cloudy. Lows in the lower 40s. Highs in the
upper 60s. 
.FRIDAY...Mostly clear. Lows in the upper 30s. Highs around 70. 

$$

IDZ427-181030-
Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls
BLM south of the Snake River-
202 PM MDT Fri Sep 17 2021

...RED FLAG WARNING IN EFFECT FROM 1 PM TO 9 PM MDT SATURDAY FOR
GUSTY WINDS AND LOW RELATIVE HUMIDITY...

.Tonight...
* Sky/weather........Clear. Haze in the evening. 
* Min Temperature....53-60. 
    24 hr trend......12 degrees up. 
* Max Humidity.......34-42 percent. 
    24 hr trend......Little change. 
* 20ft winds......... 
    Valleys/lwr slopes...South 10 to 15 mph. 
    Ridges/upr slopes....South 12 to 17 mph with gusts to around 30 
*                          mph. 
* Chc Wetting Rain...0 percent. 
* LAL................1. 
* Haines Index.......5. 
* Mixing Height......100-1100 ft AGL. 
* Transport Winds....South 15 to 20 mph. 

.SATURDAY...
* Sky/weather........Mostly sunny. Slight chance of rain showers in 
  the afternoon. 
* Max Temperature....Around 79 valleys and 69-76 ridges. 
    24 hr trend......2 degrees down. 
* Min Humidity.......16-24 percent. 
    24 hr trend......4 percent up. 
* 20ft winds......... 
    Valleys/lwr slopes...Southwest 9 to 19 mph. 
    Ridges/upr slopes....Southwest 9 to 19 mph with gusts to around 
*                          30 mph. 
* Chc Wetting Rain...0 percent. 
* LAL................1. 
* Haines Index.......5. 
* Mixing Height......13250-14250 ft AGL. 
* Transport Winds....South around 20 mph increasing to southwest 
  around 30 mph in the afternoon. 

.SATURDAY NIGHT...
* Sky/weather........Mostly clear. 
* Min Temperature....42-49. 
    24 hr trend......10 degrees down. 
* Max Humidity.......58-66 percent valleys and 49-57 percent 
  ridges. 
    24 hr trend......20 percent up. 
* 20ft winds......... 
    Valleys/lwr slopes...Southwest 12 to 17 mph. 
    Ridges/upr slopes....Southwest 12 to 17 mph with gusts to 
*                          around 25 mph. 
* Chc Wetting Rain...0 percent. 
* LAL................1. 
* Haines Index.......5. 
* Mixing Height......100-1100 ft AGL. 
* Transport Winds....Southwest around 25 mph decreasing to around 
  10 mph after midnight. 

.SUNDAY...
* Sky/weather........Mostly cloudy. Rain likely in the morning, 
  then rain showers likely in the afternoon. 
* Max Temperature....53-60. 
    24 hr trend......21 degrees down. 
* Min Humidity.......38-46 percent valleys and 31-39 percent 
  ridges. 
    24 hr trend......20 percent up. 
* 20ft winds......... 
    Valleys/lwr slopes...West 12 to 17 mph. 
    Ridges/upr slopes....West 12 to 17 mph with gusts to around 25 
*                          mph. 
* Chc Wetting Rain...40 percent. 
* LAL................1. 
* Haines Index.......3. 
* Mixing Height......5750-6750 ft AGL. 
* Transport Winds....West 15 to 20 mph. 


.Forecast days 3 through 7......
.MONDAY...Mostly clear. Lows 33 to 40. Highs 51 to 58. West winds
10 to 20 mph with gusts to around 30 mph. 
.TUESDAY...Warmer, clear. Lows 33 to 40. Highs 62 to 69. South
winds 10 to 15 mph. 
.WEDNESDAY...Mostly clear. Lows 40 to 47. Highs 70 to 77. South
winds 10 to 15 mph with gusts to around 20 mph. 
.THURSDAY...Partly cloudy. Lows in the mid 40s. Highs in the mid
60s. 
.FRIDAY...Mostly clear. Lows in the lower 40s. Highs in the upper
60s. 

$$

IDZ410-181030-
Upper Snake River Valley/Idaho Falls BLM-
202 PM MDT Fri Sep 17 2021

...RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT SATURDAY FOR GUSTY
WINDS AND LOW RELATIVE HUMIDITY...

.Tonight...
* Sky/weather........Clear. Haze after midnight. 
* Min Temperature....44-51. 
    24 hr trend......8 degrees up. 
* Max Humidity.......40-48 percent. 
    24 hr trend......Little change. 
* 20ft winds.........South winds 12 to 17 mph shifting to the 
  southeast 7 to 10 mph after midnight. Gusts up to 30 mph. 
* Chc Wetting Rain...0 percent. 
* LAL................1. 
* Haines Index.......5. 
* Mixing Height......100-1100 ft AGL. 
* Transport Winds....Southwest around 20 mph becoming southeast 
  around 10 mph after midnight. 

.SATURDAY...
* Sky/weather........Partly cloudy then becoming mostly sunny. 
  Slight chance of showers and thunderstorms in the afternoon. 
* Max Temperature....72-79. 
    24 hr trend......Little change. 
* Min Humidity.......16-24 percent. 
    24 hr trend......7 percent up. 
* 20ft winds.........South winds 13 to 23 mph with gusts to around 
  35 mph. 
* Chc Wetting Rain...0 percent. 
* LAL................1. .then 2 in the afternoon.
* Haines Index.......5. 
* Mixing Height......11250-12250 ft AGL. 
* Transport Winds....South around 20 mph increasing to southwest 
  around 35 mph in the afternoon. 

.SATURDAY NIGHT...
* Sky/weather........Partly cloudy. Slight chance of rain showers 
  after midnight. 
* Min Temperature....42-48. 
    24 hr trend......Little change. 
* Max Humidity.......62-70 percent. 
    24 hr trend......23 percent up. 
* 20ft winds.........South winds 10 to 20 mph with gusts to around 
  30 mph. 
* Chc Wetting Rain...0 percent. 
* LAL................1. 
* Haines Index.......4. 
* Mixing Height......100-1100 ft AGL. 
* Transport Winds....Southwest around 25 mph decreasing to around 
  15 mph after midnight. 

.SUNDAY...
* Sky/weather........Mostly cloudy. Chance of rain showers in the 
  morning, then rain showers likely and slight chance of 
  thunderstorms in the afternoon. 
* Max Temperature....52-59. 
    24 hr trend......20 degrees down. 
* Min Humidity.......46-54 percent. 
    24 hr trend......27 percent up. 
* 20ft winds.........Southwest winds 9 to 19 mph. Gusts up to 20 
  mph increasing to 30 mph in the afternoon. 
* Chc Wetting Rain...40 percent. 
* LAL................1, then 2 in the afternoon. 
* Haines Index.......4. 
* Mixing Height......6500-7500 ft AGL. 
* Transport Winds....Southwest 15 to 20 mph. 


.Forecast days 3 through 7......
.MONDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows 31 to 36. Highs 52 to 59. West winds 10 to
20 mph with gusts to around 30 mph. 
.TUESDAY...Clear. Lows 29 to 35. Highs 60 to 67. South winds 5 to
10 mph with gusts to around 20 mph. 
.WEDNESDAY...Mostly clear. Lows 33 to 40. Highs 67 to 74.
Southeast winds 10 to 15 mph with gusts to around 25 mph. 
.THURSDAY...Partly cloudy. Lows around 40. Highs in the mid 60s. 
.FRIDAY...Mostly clear. Lows in the upper 30s. Highs in the mid
60s. 

$$

IDZ411-181030-
Centennial Mountains and Snake River Range/Targhee NF-
202 PM MDT Fri Sep 17 2021

...RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT SATURDAY FOR GUSTY
WINDS AND LOW RELATIVE HUMIDITY...

.Tonight...
* Sky/weather........Clear. Patchy smoke. 
* Min Temperature....43-50. 
    24 hr trend......9 degrees up. 
* Max Humidity.......47-55 percent valleys and 37-45 percent 
  ridges. 
    24 hr trend......4 percent down. 
* 20ft winds......... 
    Valleys/lwr slopes...South 8 to 13 mph shifting to the east 4 
*                          to 7 mph after midnight. 
    Ridges/upr slopes....South 10 to 15 mph with gusts to around 25 
*                          mph. 
* Chc Wetting Rain...0 percent. 
* LAL................1. 
* Haines Index.......4. 
* Mixing Height......100-1100 ft AGL. 
* Transport Winds....Southwest around 20 mph becoming south around 
  10 mph after midnight. 

.SATURDAY...
* Sky/weather........Mostly sunny then becoming partly cloudy. 
  Scattered rain showers and slight chance of thunderstorms in the 
  afternoon. 
* Max Temperature....Around 72 valleys and 63-70 ridges. 
    24 hr trend......Little change. 
* Min Humidity.......26-34 percent valleys and 22-30 percent 
  ridges. 
    24 hr trend......9 percent up. 
* 20ft winds......... 
    Valleys/lwr slopes...South 12 to 17 mph. 
    Ridges/upr slopes....South 7 to 12 mph with gusts to around 20 
*                          mph shifting to the southwest 13 to 23 
*                          mph with gusts to around 40 mph in the 
*                          afternoon. 
* Chc Wetting Rain...0 percent. 
* LAL................1, then 2 in the afternoon. 
* Haines Index.......5. 
* Mixing Height......10000-11000 ft AGL. 
* Transport Winds....South around 20 mph increasing to southwest 
  around 35 mph in the afternoon. 

.SATURDAY NIGHT...
* Sky/weather........Partly cloudy. Slight chance of thunderstorms 
  in the evening. Slight chance of rain showers through the night. 
* Min Temperature....38-45. 
    24 hr trend......5 degrees down. 
* Max Humidity.......77-85 percent valleys and 65-73 percent 
  ridges. 
    24 hr trend......31 percent up. 
* 20ft winds......... 
    Valleys/lwr slopes...South 9 to 14 mph. 
    Ridges/upr slopes....South 12 to 22 mph. Gusts up to 40 mph in 
*                          the evening. 
* Chc Wetting Rain...0 percent. 
* LAL................2, then 1 after midnight. 
* Haines Index.......4. 
* Mixing Height......200-1200 ft AGL. 
* Transport Winds....Southwest 20 to 25 mph. 

.SUNDAY...
* Sky/weather........Mostly cloudy. Rain showers likely in the 
  morning, then rain showers, snow showers and slight chance of 
  thunderstorms in the afternoon. 
* Max Temperature....45-52. 
    24 hr trend......18 degrees down. 
* Min Humidity.......55-63 percent. 
    24 hr trend......34 percent up. 
* 20ft winds......... 
    Valleys/lwr slopes...Southwest 8 to 13 mph. 
    Ridges/upr slopes....Southwest 11 to 16 mph with gusts to 
*                          around 30 mph. 
* Chc Wetting Rain...70 percent. 
* LAL................1, then 2 in the afternoon. 
* Haines Index.......3. 
* Mixing Height......5750-6750 ft AGL. 
* Transport Winds....Southwest 15 to 20 mph. 


.Forecast days 3 through 7......
.MONDAY...Mostly cloudy. Chance of showers, snow showers and
slight chance of thunderstorms. Lows 28 to 35. Highs 42 to 49.
West winds 10 to 15 mph with gusts to around 25 mph. 
.TUESDAY...Clear. Lows 26 to 33. Highs 51 to 58. South winds 5 to
10 mph with gusts to around 15 mph. 
.WEDNESDAY...Mostly clear. Lows 31 to 38. Highs 58 to 65. South
winds 10 to 15 mph with gusts to around 25 mph. 
.THURSDAY...Partly cloudy with slight chance of showers. Lows in
the upper 30s. Highs in the upper 50s. 
.FRIDAY...Partly cloudy with slight chance of showers. Lows in
the mid 30s. Highs in the upper 50s. 

$$

IDZ413-181030-
Caribou Range/Caribou NF-
202 PM MDT Fri Sep 17 2021

.Tonight...
* Sky/weather........Clear. Haze in the evening. 
* Min Temperature....47-54. 
    24 hr trend......8 degrees up. 
* Max Humidity.......42-50 percent valleys and 37-45 percent 
  ridges. 
    24 hr trend......3 percent down. 
* 20ft winds......... 
    Valleys/lwr slopes...South 9 to 14 mph. 
    Ridges/upr slopes....South 10 to 15 mph with gusts to around 25 
*                          mph. 
* Chc Wetting Rain...0 percent. 
* LAL................1. 
* Haines Index.......5. 
* Mixing Height......100-1100 ft AGL. 
* Transport Winds....South around 15 mph. 

.SATURDAY...
* Sky/weather........Partly cloudy. Chance of rain showers and 
  slight chance of thunderstorms in the afternoon. 
* Max Temperature....70-77 valleys and 62-69 ridges. 
    24 hr trend......5 degrees down. 
* Min Humidity.......27-35 percent valleys and 31-39 percent 
  ridges. 
    24 hr trend......14 percent up. 
* 20ft winds......... 
    Valleys/lwr slopes...South 8 to 18 mph. 
    Ridges/upr slopes....South 11 to 21 mph with gusts to around 30 
*                          mph. 
* Chc Wetting Rain...10 percent. 
* LAL................1, then 2 in the afternoon. 
* Haines Index.......5. 
* Mixing Height......10750-11750 ft AGL. 
* Transport Winds....South around 20 mph increasing to southwest 
  around 30 mph in the afternoon. 

.SATURDAY NIGHT...
* Sky/weather........Mostly clear. Slight chance of showers and 
  thunderstorms in the evening. 
* Min Temperature....43-50. 
    24 hr trend......4 degrees down. 
* Max Humidity.......71-79 percent valleys and 63-71 percent 
  ridges. 
    24 hr trend......26 percent up. 
* 20ft winds......... 
    Valleys/lwr slopes...South 11 to 16 mph. 
    Ridges/upr slopes....South 12 to 17 mph. Gusts up to 30 mph 
*                          decreasing to 20 mph after midnight. 
* Chc Wetting Rain...0 percent. 
* LAL................2, then 1 after midnight. 
* Haines Index.......4. 
* Mixing Height......100-1100 ft AGL. 
* Transport Winds....South around 25 mph decreasing to around 15 
  mph after midnight. 

.SUNDAY...
* Sky/weather........Partly cloudy then becoming mostly cloudy. 
  Chance of rain showers in the morning, then rain showers likely 
  and slight chance of thunderstorms in the afternoon. 
* Max Temperature....57-64. 
    24 hr trend......10 degrees down. 
* Min Humidity.......40-48 percent. 
    24 hr trend......11 percent up. 
* 20ft winds......... 
    Valleys/lwr slopes...South 5 to 10 mph shifting to the west 11 
*                          to 16 mph in the afternoon. 
    Ridges/upr slopes....South 8 to 13 mph with gusts to around 20 
*                          mph shifting to the west 10 to 20 mph 
*                          with gusts to around 30 mph in the 
*                          afternoon. 
* Chc Wetting Rain...40 percent. 
* LAL................1, then 2 in the afternoon. 
* Haines Index.......4. 
* Mixing Height......8250-9250 ft AGL. 
* Transport Winds....South around 15 mph increasing to west around 
  25 mph in the afternoon. 


.Forecast days 3 through 7......
.MONDAY...Partly cloudy. Slight chance of showers. Lows 31 to 38.
Highs 50 to 57. West winds 10 to 20 mph with gusts to around
30 mph. 
.TUESDAY...Clear. Lows 29 to 36. Highs 59 to 66. South winds 5 to
10 mph with gusts to around 15 mph. 
.WEDNESDAY...Mostly clear. Lows 34 to 41. Highs 65 to 72. South
winds 10 to 15 mph with gusts to around 20 mph. 
.THURSDAY...Partly cloudy. Lows in the lower 40s. Highs in the
mid 60s. 
.FRIDAY...Mostly clear. Lows in the upper 30s. Highs in the mid
60s. 

$$


.OUTLOOK from Saturday September 25th to Friday October 1st:
Above normal temperatures and below normal precipitation.


$$