706  
FNUS55 KPIH 242035  
FWFPIH  
 
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST IDAHO  
NATIONAL WEATHER SERVICE POCATELLO ID  
235 PM MDT THU SEP 24 2020  
   
DISCUSSION
 
 
* CENTRAL IDAHO DISPATCH AREA WEATHER IMPACT SUMMARY (ZONES 475  
AND 476)...  
 
A SERIES OF PACIFIC DISTURBANCES AND ASSOCIATED FRONTAL  
BOUNDARIES WILL MOVE THROUGH THE REGION TODAY THROUGH SATURDAY  
RESULTING IN STRONG GUSTY WINDS, SUCCESSIVELY COOLER TEMPERATURES,  
HIGHER HUMIDITY, AND A CHANCE OF SHOWERS. GOOD CHANCE OF WETTING  
RAIN FRIDAY NIGHT INTO SATURDAY FOR MAINLY 475. UNSEASONABLY WARM  
AND DRY CONDITIONS WILL RETURN TO THE REGION NEXT WEEK.  
 
* EAST IDAHO DISPATCH AREA WEATHER IMPACT SUMMARY (ZONES 410...411  
AND 413)...  
 
A SERIES OF PACIFIC DISTURBANCES AND ASSOCIATED FRONTAL  
BOUNDARIES WILL MOVE THROUGH THE REGION TODAY THROUGH SATURDAY  
RESULTING IN STRONG GUSTY WINDS, SUCCESSIVELY COOLER TEMPERATURES,  
HIGHER HUMIDITY, AND A SLIGHT CHANCE OF SHOWERS FOR ZONES 411 AND  
413 FRIDAY NIGHT INTO SATURDAY. UNSEASONABLY WARM AND DRY  
CONDITIONS WILL RETURN TO THE REGION NEXT WEEK.  
 
* SOUTH CENTRAL IDAHO DISPATCH AREA WEATHER IMPACT SUMMARY (ZONES  
422...425 AND 427)...  
 
A SERIES OF PACIFIC DISTURBANCES AND ASSOCIATED FRONTAL  
BOUNDARIES WILL MOVE THROUGH THE REGION TODAY THROUGH SATURDAY  
RESULTING IN STRONG GUSTY WINDS, SUCCESSIVELY COOLER TEMPERATURES,  
HIGHER HUMIDITY, AND A SLIGHT CHANCE OF SHOWERS FOR 427 FRIDAY  
NIGHT INTO SATURDAY. UNSEASONABLY WARM AND DRY CONDITIONS WILL  
RETURN TO THE REGION NEXT WEEK.  
 
IDZ475-251100-  
EAST SALMON RIVER MOUNTAINS/SALMON NF-  
235 PM MDT THU SEP 24 2020  
   
TONIGHT
 
 
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.  
SLIGHT CHANCE OF RAIN.  
* MIN TEMPERATURE....36-43.  
24 HR TREND......7 DEGREES DOWN.  
* MAX HUMIDITY.......71-79 PERCENT.  
24 HR TREND......12 PERCENT UP.  
* 20FT WINDS.........  
VALLEYS/LWR SLOPES...SOUTHWEST 8 TO 13 MPH.  
RIDGES/UPR SLOPES....SOUTHWEST 9 TO 14 MPH. GUSTS UP TO 25 MPH  
* DECREASING TO 15 MPH AFTER MIDNIGHT.  
* CHC WETTING RAIN...0 PERCENT.  
* LAL................1.  
* HAINES INDEX.......2.  
* MIXING HEIGHT......100-1100 FT AGL.  
* TRANSPORT WINDS....SOUTHWEST AROUND 15 MPH.  
   
FRIDAY
 
 
* SKY/WEATHER........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN IN THE  
MORNING, THEN CHANCE OF RAIN SHOWERS IN THE AFTERNOON.  
* MAX TEMPERATURE....55-62 VALLEYS AND 48-55 RIDGES.  
24 HR TREND......LITTLE CHANGE.  
* MIN HUMIDITY.......39-47 PERCENT VALLEYS AND 44-52 PERCENT  
RIDGES.  
24 HR TREND......6 PERCENT DOWN.  
* 20FT WINDS.........  
VALLEYS/LWR SLOPES...SOUTH 4 TO 7 MPH INCREASING TO SOUTHWEST  
* 13 TO 18 MPH IN THE AFTERNOON.  
RIDGES/UPR SLOPES....SOUTHWEST 4 TO 9 MPH WITH GUSTS TO AROUND  
* 15 MPH INCREASING TO 11 TO 21 MPH WITH  
* GUSTS TO AROUND 30 MPH IN THE AFTERNOON.  
* CHC WETTING RAIN...10 PERCENT.  
* LAL................1.  
* HAINES INDEX.......2.  
* MIXING HEIGHT......5250-6250 FT AGL.  
* TRANSPORT WINDS....SOUTHWEST AROUND 15 MPH INCREASING TO AROUND  
25 MPH IN THE AFTERNOON.  
   
FRIDAY NIGHT
 
 
* SKY/WEATHER........CLOUDY. RAIN SHOWERS LIKELY.  
* MIN TEMPERATURE....37-44.  
24 HR TREND......LITTLE CHANGE.  
* MAX HUMIDITY.......77-85 PERCENT.  
24 HR TREND......6 PERCENT UP.  
* 20FT WINDS.........  
VALLEYS/LWR SLOPES...WEST 12 TO 17 MPH.  
RIDGES/UPR SLOPES....WEST 9 TO 19 MPH WITH GUSTS TO AROUND 30  
* MPH.  
* CHC WETTING RAIN...90 PERCENT.  
* LAL................1.  
* HAINES INDEX.......2.  
* MIXING HEIGHT......400-1400 FT AGL.  
* TRANSPORT WINDS....WEST 15 TO 20 MPH.  
   
SATURDAY
 
 
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.  
CHANCE OF RAIN SHOWERS.  
* MAX TEMPERATURE....50-57 VALLEYS AND 43-50 RIDGES.  
24 HR TREND......5 DEGREES DOWN.  
* MIN HUMIDITY.......40-48 PERCENT VALLEYS AND 44-52 PERCENT  
RIDGES.  
24 HR TREND......LITTLE CHANGE.  
* 20FT WINDS.........  
VALLEYS/LWR SLOPES...WEST 8 TO 13 MPH.  
RIDGES/UPR SLOPES....WEST 10 TO 15 MPH WITH GUSTS TO AROUND 20  
* MPH.  
* CHC WETTING RAIN...20 PERCENT.  
* LAL................1.  
* HAINES INDEX.......2.  
* MIXING HEIGHT......5750-6750 FT AGL.  
* TRANSPORT WINDS....WEST 15 TO 20 MPH.  
   
FORECAST DAYS 3 THROUGH 7...
 
   
SUNDAY
 
PARTLY CLOUDY. LOWS 31 TO 38. HIGHS 51 TO 58. WEST  
WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 20 MPH.    
MONDAY
 
CLEAR. LOWS 33 TO 40. HIGHS 60 TO 67. WEST WINDS 5 TO  
10 MPH WITH GUSTS TO AROUND 15 MPH.    
TUESDAY
 
CLEAR. LOWS 37 TO 44. HIGHS 63 TO 70. WEST WINDS 5 TO  
10 MPH WITH GUSTS TO AROUND 15 MPH.    
WEDNESDAY
 
CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE MID 60S.    
THURSDAY
 
CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER 60S.  
 

 
 
IDZ476-251100-  
LEMHI AND LOST RIVER RANGE/CHALLIS NF-  
235 PM MDT THU SEP 24 2020  
   
TONIGHT
 
 
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.  
SLIGHT CHANCE OF RAIN SHOWERS IN THE EVENING.  
* MIN TEMPERATURE....36-43.  
24 HR TREND......7 DEGREES DOWN.  
* MAX HUMIDITY.......66-74 PERCENT VALLEYS AND 61-69 PERCENT  
RIDGES.  
24 HR TREND......16 PERCENT UP.  
* 20FT WINDS.........  
VALLEYS/LWR SLOPES...WEST 9 TO 14 MPH.  
RIDGES/UPR SLOPES....WEST 10 TO 15 MPH. GUSTS UP TO 30 MPH  
* DECREASING TO 15 MPH AFTER MIDNIGHT.  
* CHC WETTING RAIN...0 PERCENT.  
* LAL................1.  
* HAINES INDEX.......2.  
* MIXING HEIGHT......100-1100 FT AGL.  
* TRANSPORT WINDS....WEST AROUND 20 MPH BECOMING SOUTHWEST AROUND  
10 MPH AFTER MIDNIGHT.  
   
FRIDAY
 
 
* SKY/WEATHER........PARTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS  
IN THE AFTERNOON.  
* MAX TEMPERATURE....60-67 VALLEYS AND 51-58 RIDGES.  
24 HR TREND......2 DEGREES DOWN.  
* MIN HUMIDITY.......29-37 PERCENT VALLEYS AND 33-41 PERCENT  
RIDGES.  
24 HR TREND......2 PERCENT UP.  
* 20FT WINDS.........  
VALLEYS/LWR SLOPES...SOUTH 4 TO 7 MPH INCREASING TO SOUTHWEST  
* 11 TO 21 MPH IN THE AFTERNOON.  
RIDGES/UPR SLOPES....SOUTHWEST 6 TO 9 MPH WITH GUSTS TO AROUND  
* 15 MPH INCREASING TO 13 TO 23 MPH WITH  
* GUSTS TO AROUND 35 MPH IN THE AFTERNOON.  
* CHC WETTING RAIN...0 PERCENT.  
* LAL................1.  
* HAINES INDEX.......2.  
* MIXING HEIGHT......5750-6750 FT AGL.  
* TRANSPORT WINDS....SOUTHWEST AROUND 10 MPH INCREASING TO AROUND  
25 MPH IN THE AFTERNOON.  
   
FRIDAY NIGHT
 
 
* SKY/WEATHER........MOSTLY CLOUDY. CHANCE OF RAIN IN THE EVENING,  
THEN CHANCE OF RAIN SHOWERS AFTER MIDNIGHT.  
* MIN TEMPERATURE....38-45.  
24 HR TREND......2 DEGREES UP.  
* MAX HUMIDITY.......68-76 PERCENT.  
24 HR TREND......5 PERCENT UP.  
* 20FT WINDS.........  
VALLEYS/LWR SLOPES...WEST 13 TO 18 MPH.  
RIDGES/UPR SLOPES....WEST 9 TO 19 MPH WITH GUSTS TO AROUND 30  
* MPH.  
* CHC WETTING RAIN...30 PERCENT.  
* LAL................1.  
* HAINES INDEX.......2.  
* MIXING HEIGHT......300-1300 FT AGL.  
* TRANSPORT WINDS....WEST AROUND 25 MPH DECREASING TO AROUND 15 MPH  
AFTER MIDNIGHT.  
   
SATURDAY
 
 
* SKY/WEATHER........PARTLY CLOUDY. CHANCE OF RAIN SHOWERS IN THE  
MORNING, THEN SLIGHT CHANCE OF RAIN SHOWERS IN THE AFTERNOON.  
* MAX TEMPERATURE....54-61 VALLEYS AND 45-52 RIDGES.  
24 HR TREND......6 DEGREES DOWN.  
* MIN HUMIDITY.......30-38 PERCENT VALLEYS AND 35-43 PERCENT  
RIDGES.  
24 HR TREND......LITTLE CHANGE.  
* 20FT WINDS.........  
VALLEYS/LWR SLOPES...WEST 10 TO 15 MPH.  
RIDGES/UPR SLOPES....WEST 11 TO 16 MPH WITH GUSTS TO AROUND 25  
* MPH.  
* CHC WETTING RAIN...10 PERCENT.  
* LAL................1.  
* HAINES INDEX.......2.  
* MIXING HEIGHT......7000-8000 FT AGL.  
* TRANSPORT WINDS....WEST 15 TO 20 MPH.  
   
FORECAST DAYS 3 THROUGH 7...
 
   
SUNDAY
 
PARTLY CLOUDY. LOWS 31 TO 38. HIGHS 50 TO 57. NORTHWEST  
WINDS 10 TO 20 MPH WITH GUSTS TO AROUND 25 MPH.    
MONDAY
 
CLEAR. LOWS 33 TO 40. HIGHS 59 TO 66. WEST WINDS 10 TO  
15 MPH.    
TUESDAY
 
CLEAR. LOWS 37 TO 44. HIGHS 62 TO 69. NORTHWEST WINDS  
10 TO 15 MPH WITH GUSTS TO AROUND 20 MPH.    
WEDNESDAY
 
CLEAR. LOWS AROUND 40. HIGHS IN THE MID 60S.    
THURSDAY
 
CLEAR. LOWS AROUND 40. HIGHS IN THE UPPER 60S.  
 

 
 
IDZ422-251100-  
SAWTOOTH RANGE/NORTHERN SAWTOOTH NF-  
235 PM MDT THU SEP 24 2020  
   
TONIGHT
 
 
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.  
* MIN TEMPERATURE....36-43.  
24 HR TREND......4 DEGREES DOWN.  
* MAX HUMIDITY.......69-77 PERCENT VALLEYS AND 64-72 PERCENT  
RIDGES.  
24 HR TREND......16 PERCENT UP.  
* 20FT WINDS.........  
VALLEYS/LWR SLOPES...WEST 12 TO 17 MPH SHIFTING TO THE  
* NORTHWEST 4 TO 7 MPH AFTER MIDNIGHT.  
RIDGES/UPR SLOPES....WEST 9 TO 14 MPH. GUSTS UP TO 25 MPH  
* DECREASING TO 15 MPH AFTER MIDNIGHT.  
* CHC WETTING RAIN...0 PERCENT.  
* LAL................1.  
* HAINES INDEX.......2.  
* MIXING HEIGHT......0-1000 FT AGL.  
* TRANSPORT WINDS....WEST AROUND 20 MPH DECREASING TO AROUND 10 MPH  
AFTER MIDNIGHT.  
   
FRIDAY
 
 
* SKY/WEATHER........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.  
CHANCE OF RAIN SHOWERS IN THE AFTERNOON.  
* MAX TEMPERATURE....61-68 VALLEYS AND 49-56 RIDGES.  
24 HR TREND......LITTLE CHANGE.  
* MIN HUMIDITY.......30-38 PERCENT VALLEYS AND 39-47 PERCENT  
RIDGES.  
24 HR TREND......7 PERCENT UP.  
* 20FT WINDS.........  
VALLEYS/LWR SLOPES...WEST 4 TO 7 MPH INCREASING TO SOUTHWEST 12  
* TO 22 MPH IN THE AFTERNOON.  
RIDGES/UPR SLOPES....SOUTHWEST 6 TO 9 MPH WITH GUSTS TO AROUND  
* 15 MPH INCREASING TO 11 TO 21 MPH WITH  
* GUSTS TO AROUND 30 MPH IN THE AFTERNOON.  
* CHC WETTING RAIN...0 PERCENT.  
* LAL................1.  
* HAINES INDEX.......2.  
* MIXING HEIGHT......5500-6500 FT AGL.  
* TRANSPORT WINDS....WEST AROUND 10 MPH INCREASING TO SOUTHWEST  
AROUND 25 MPH IN THE AFTERNOON.  
   
FRIDAY NIGHT
 
 
* SKY/WEATHER........MOSTLY CLOUDY. RAIN SHOWERS LIKELY THROUGH THE  
NIGHT.  
* MIN TEMPERATURE....37-44.  
24 HR TREND......LITTLE CHANGE.  
* MAX HUMIDITY.......76-84 PERCENT.  
24 HR TREND......7 PERCENT UP.  
* 20FT WINDS.........  
VALLEYS/LWR SLOPES...WEST 14 TO 19 MPH.  
RIDGES/UPR SLOPES....WEST 11 TO 16 MPH WITH GUSTS TO AROUND 25  
* MPH.  
* CHC WETTING RAIN...30 PERCENT.  
* LAL................1.  
* HAINES INDEX.......2.  
* MIXING HEIGHT......500-1500 FT AGL.  
* TRANSPORT WINDS....WEST 15 TO 20 MPH.  
   
SATURDAY
 
 
* SKY/WEATHER........PARTLY CLOUDY. CHANCE OF SNOW SHOWERS IN THE  
MORNING. CHANCE OF RAIN SHOWERS THROUGH THE DAY.  
* MAX TEMPERATURE....57-64 VALLEYS AND 45-52 RIDGES.  
24 HR TREND......4 DEGREES DOWN.  
* MIN HUMIDITY.......28-36 PERCENT VALLEYS AND 39-47 PERCENT  
RIDGES.  
24 HR TREND......LITTLE CHANGE.  
* 20FT WINDS.........  
VALLEYS/LWR SLOPES...WEST 11 TO 16 MPH.  
RIDGES/UPR SLOPES....WEST 8 TO 13 MPH WITH GUSTS TO AROUND 20  
* MPH.  
* CHC WETTING RAIN...20 PERCENT.  
* LAL................1.  
* HAINES INDEX.......2.  
* MIXING HEIGHT......5750-6750 FT AGL.  
* TRANSPORT WINDS....WEST 15 TO 20 MPH.  
   
FORECAST DAYS 3 THROUGH 7...
 
   
SUNDAY
 
MOSTLY CLEAR. LOWS 31 TO 38. HIGHS 54 TO 61. NORTHWEST  
WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 25 MPH.    
MONDAY
 
CLEAR. LOWS 33 TO 40. HIGHS 61 TO 68. NORTHWEST WINDS  
5 TO 10 MPH WITH GUSTS TO AROUND 15 MPH.    
TUESDAY
 
CLEAR. LOWS 38 TO 45. HIGHS 65 TO 72. NORTHWEST WINDS  
5 TO 10 MPH WITH GUSTS TO AROUND 15 MPH.    
WEDNESDAY
 
CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER  
60S.    
THURSDAY
 
CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER 60S.  
 

 
 
IDZ425-251100-  
MIDDLE SNAKE RIVER VALLEY/TWIN FALLS BLM NORTH OF THE SNAKE RIVER-  
235 PM MDT THU SEP 24 2020  
   
TONIGHT
 
 
* SKY/WEATHER........PARTLY CLOUDY.  
* MIN TEMPERATURE....AROUND 46.  
24 HR TREND......2 DEGREES DOWN.  
* MAX HUMIDITY.......82-90 PERCENT.  
24 HR TREND......21 PERCENT UP.  
* 20FT WINDS.........WEST WINDS 12 TO 17 MPH. GUSTS UP TO 30 MPH  
DECREASING TO 20 MPH AFTER MIDNIGHT.  
* CHC WETTING RAIN...0 PERCENT.  
* LAL................1.  
* HAINES INDEX.......3.  
* MIXING HEIGHT......0-1000 FT AGL.  
* TRANSPORT WINDS....WEST AROUND 20 MPH DECREASING TO AROUND 10 MPH  
AFTER MIDNIGHT.  
   
FRIDAY
 
 
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.  
* MAX TEMPERATURE....69-74.  
24 HR TREND......2 DEGREES DOWN.  
* MIN HUMIDITY.......27-35 PERCENT.  
24 HR TREND......7 PERCENT UP.  
* 20FT WINDS.........SOUTHWEST WINDS 5 TO 8 MPH WITH GUSTS TO  
AROUND 15 MPH SHIFTING TO THE WEST 11 TO 21 MPH WITH GUSTS TO  
AROUND 30 MPH IN THE AFTERNOON.  
* CHC WETTING RAIN...0 PERCENT.  
* LAL................1.  
* HAINES INDEX.......3.  
* MIXING HEIGHT......6250-7250 FT AGL.  
* TRANSPORT WINDS....SOUTHWEST AROUND 10 MPH INCREASING TO WEST  
AROUND 20 MPH IN THE AFTERNOON.  
   
FRIDAY NIGHT
 
 
* SKY/WEATHER........PARTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS  
AFTER MIDNIGHT.  
* MIN TEMPERATURE....46-51.  
24 HR TREND......3 DEGREES UP.  
* MAX HUMIDITY.......76-84 PERCENT.  
24 HR TREND......5 PERCENT DOWN.  
* 20FT WINDS.........WEST WINDS 9 TO 19 MPH WITH GUSTS TO AROUND 30  
MPH.  
* CHC WETTING RAIN...10 PERCENT.  
* LAL................1.  
* HAINES INDEX.......2.  
* MIXING HEIGHT......0-1000 FT AGL.  
* TRANSPORT WINDS....WEST 15 TO 20 MPH.  
   
SATURDAY
 
 
* SKY/WEATHER........PARTLY CLOUDY.  
* MAX TEMPERATURE....AROUND 67.  
24 HR TREND......5 DEGREES DOWN.  
* MIN HUMIDITY.......34-42 PERCENT.  
24 HR TREND......6 PERCENT UP.  
* 20FT WINDS.........WEST WINDS 9 TO 19 MPH WITH GUSTS TO AROUND 30  
MPH.  
* CHC WETTING RAIN...0 PERCENT.  
* LAL................1.  
* HAINES INDEX.......3.  
* MIXING HEIGHT......6750-7750 FT AGL.  
* TRANSPORT WINDS....WEST 20 TO 25 MPH.  
   
FORECAST DAYS 3 THROUGH 7...
 
   
SUNDAY
 
MOSTLY CLEAR. LOWS 38 TO 43. HIGHS IN THE MID 60S. WEST  
WINDS 10 TO 20 MPH WITH GUSTS TO AROUND 30 MPH.    
MONDAY
 
CLEAR. LOWS 35 TO 40. HIGHS IN THE LOWER 70S. WEST  
WINDS 5 TO 10 MPH WITH GUSTS TO AROUND 15 MPH.    
TUESDAY
 
CLEAR. LOWS 39 TO 44. HIGHS IN THE MID 70S. SOUTHWEST  
WINDS 5 TO 10 MPH WITH GUSTS TO AROUND 15 MPH.    
WEDNESDAY
 
CLEAR. LOWS IN THE MID 40S. HIGHS IN THE MID 70S.    
THURSDAY
 
CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER 70S.  
 

 
 
IDZ427-251100-  
GOOSE CREEK AND RAFT RIVER VALLEY/SOUTHERN SAWTOOTH NF/TWIN FALLS  
BLM SOUTH OF THE SNAKE RIVER-  
235 PM MDT THU SEP 24 2020  
   
TONIGHT
 
 
* SKY/WEATHER........PARTLY CLOUDY.  
* MIN TEMPERATURE....43-50.  
24 HR TREND......6 DEGREES DOWN.  
* MAX HUMIDITY.......70-78 PERCENT VALLEYS AND 63-71 PERCENT  
RIDGES.  
24 HR TREND......21 PERCENT UP.  
* 20FT WINDS.........  
VALLEYS/LWR SLOPES...WEST 11 TO 16 MPH.  
RIDGES/UPR SLOPES....WEST 10 TO 15 MPH. GUSTS UP TO 25 MPH  
* DECREASING TO 15 MPH AFTER MIDNIGHT.  
* CHC WETTING RAIN...0 PERCENT.  
* LAL................1.  
* HAINES INDEX.......3.  
* MIXING HEIGHT......0-1000 FT AGL.  
* TRANSPORT WINDS....WEST AROUND 20 MPH DECREASING TO AROUND 10 MPH  
AFTER MIDNIGHT.  
   
FRIDAY
 
 
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.  
* MAX TEMPERATURE....73-78 VALLEYS AND 66-73 RIDGES.  
24 HR TREND......LITTLE CHANGE.  
* MIN HUMIDITY.......22-30 PERCENT.  
24 HR TREND......6 PERCENT UP.  
* 20FT WINDS.........  
VALLEYS/LWR SLOPES...SOUTH 4 TO 6 MPH SHIFTING TO THE WEST 12  
* TO 17 MPH IN THE AFTERNOON.  
RIDGES/UPR SLOPES....SOUTHWEST 4 TO 7 MPH SHIFTING TO THE WEST  
* 12 TO 17 MPH WITH GUSTS TO AROUND 25 MPH  
* IN THE AFTERNOON.  
* CHC WETTING RAIN...0 PERCENT.  
* LAL................1.  
* HAINES INDEX.......3.  
* MIXING HEIGHT......8750-9750 FT AGL.  
* TRANSPORT WINDS....SOUTH AROUND 10 MPH INCREASING TO WEST AROUND  
20 MPH IN THE AFTERNOON.  
   
FRIDAY NIGHT
 
 
* SKY/WEATHER........PARTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS  
AFTER MIDNIGHT.  
* MIN TEMPERATURE....45-52.  
24 HR TREND......LITTLE CHANGE.  
* MAX HUMIDITY.......68-76 PERCENT VALLEYS AND 63-71 PERCENT  
RIDGES.  
24 HR TREND......LITTLE CHANGE.  
* 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...0 PERCENT.  
* LAL................1.  
* HAINES INDEX.......2.  
* MIXING HEIGHT......0-1000 FT AGL.  
* TRANSPORT WINDS....WEST AROUND 20 MPH DECREASING TO AROUND 10 MPH  
AFTER MIDNIGHT.  
   
SATURDAY
 
 
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.  
CHANCE OF RAIN SHOWERS IN THE MORNING.  
* MAX TEMPERATURE....AROUND 67 VALLEYS AND 57-64 RIDGES.  
24 HR TREND......9 DEGREES DOWN.  
* MIN HUMIDITY.......39-47 PERCENT.  
24 HR TREND......17 PERCENT UP.  
* 20FT WINDS.........  
VALLEYS/LWR SLOPES...WEST 12 TO 17 MPH.  
RIDGES/UPR SLOPES....WEST 11 TO 16 MPH WITH GUSTS TO AROUND 25  
* MPH.  
* CHC WETTING RAIN...0 PERCENT.  
* LAL................1.  
* HAINES INDEX.......2.  
* MIXING HEIGHT......5750-6750 FT AGL.  
* TRANSPORT WINDS....WEST 15 TO 20 MPH.  
   
FORECAST DAYS 3 THROUGH 7...
 
   
SUNDAY
 
MOSTLY CLEAR. LOWS 40 TO 47. HIGHS 59 TO 66. WEST WINDS  
10 TO 20 MPH WITH GUSTS TO AROUND 30 MPH.    
MONDAY
 
CLEAR. LOWS 37 TO 44. HIGHS 65 TO 72. WEST WINDS 5 TO  
10 MPH WITH GUSTS TO AROUND 20 MPH.    
TUESDAY
 
CLEAR. LOWS 41 TO 48. HIGHS 70 TO 77. WEST WINDS 5 TO  
10 MPH WITH GUSTS TO AROUND 15 MPH.    
WEDNESDAY
 
CLEAR. LOWS IN THE MID 40S. HIGHS IN THE MID 70S.    
THURSDAY
 
CLEAR. LOWS IN THE MID 40S. HIGHS IN THE MID 70S.  
 

 
 
IDZ410-251100-  
UPPER SNAKE RIVER VALLEY/IDAHO FALLS BLM-  
235 PM MDT THU SEP 24 2020  
   
TONIGHT
 
 
* SKY/WEATHER........MOSTLY CLOUDY.  
* MIN TEMPERATURE....42-49.  
24 HR TREND......2 DEGREES DOWN.  
* MAX HUMIDITY.......69-77 PERCENT.  
24 HR TREND......14 PERCENT UP.  
* 20FT WINDS.........SOUTHWEST WINDS 10 TO 20 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....SOUTHWEST AROUND 25 MPH DECREASING TO AROUND  
15 MPH AFTER MIDNIGHT.  
   
FRIDAY
 
 
* SKY/WEATHER........PARTLY CLOUDY.  
* MAX TEMPERATURE....64-71.  
24 HR TREND......5 DEGREES DOWN.  
* MIN HUMIDITY.......25-33 PERCENT.  
24 HR TREND......8 PERCENT UP.  
* 20FT WINDS.........SOUTHWEST WINDS 6 TO 11 MPH WITH GUSTS TO  
AROUND 20 MPH INCREASING TO 13 TO 23 MPH WITH GUSTS TO AROUND 30  
MPH IN THE AFTERNOON.  
* CHC WETTING RAIN...0 PERCENT.  
* LAL................1.  
* HAINES INDEX.......3.  
* MIXING HEIGHT......6250-7250 FT AGL.  
* TRANSPORT WINDS....SOUTHWEST AROUND 15 MPH INCREASING TO AROUND  
25 MPH IN THE AFTERNOON.  
   
FRIDAY NIGHT
 
 
* SKY/WEATHER........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS  
AFTER MIDNIGHT.  
* MIN TEMPERATURE....43-50.  
24 HR TREND......2 DEGREES UP.  
* MAX HUMIDITY.......68-76 PERCENT.  
24 HR TREND......LITTLE CHANGE.  
* 20FT WINDS.........SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO  
AROUND 30 MPH.  
* CHC WETTING RAIN...0 PERCENT.  
* LAL................1.  
* HAINES INDEX.......2.  
* MIXING HEIGHT......100-1100 FT AGL.  
* TRANSPORT WINDS....SOUTHWEST 15 TO 20 MPH.  
   
SATURDAY
 
 
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.  
SLIGHT CHANCE OF RAIN SHOWERS.  
* MAX TEMPERATURE....60-67.  
24 HR TREND......4 DEGREES DOWN.  
* MIN HUMIDITY.......28-36 PERCENT.  
24 HR TREND......2 PERCENT UP.  
* 20FT WINDS.........WEST WINDS 9 TO 19 MPH WITH GUSTS TO AROUND 30  
MPH.  
* CHC WETTING RAIN...0 PERCENT.  
* LAL................1.  
* HAINES INDEX.......3.  
* MIXING HEIGHT......8500-9500 FT AGL.  
* TRANSPORT WINDS....WEST AROUND 20 MPH.  
   
FORECAST DAYS 3 THROUGH 7...
 
   
SUNDAY
 
BREEZY. PARTLY CLOUDY. LOWS 34 TO 41. HIGHS 58 TO 65.  
WEST WINDS 15 TO 25 MPH WITH GUSTS TO AROUND 30 MPH.    
MONDAY
 
CLEAR. LOWS 32 TO 39. HIGHS 65 TO 72. SOUTHWEST WINDS  
10 TO 15 MPH.    
TUESDAY
 
CLEAR. LOWS 36 TO 43. HIGHS 69 TO 75. WEST WINDS 10 TO  
15 MPH.    
WEDNESDAY
 
CLEAR. LOWS AROUND 40. HIGHS IN THE LOWER 70S.    
THURSDAY
 
CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE LOWER 70S.  
 

 
 
IDZ411-251100-  
CENTENNIAL MOUNTAINS AND SNAKE RIVER RANGE/TARGHEE NF-  
235 PM MDT THU SEP 24 2020  
   
TONIGHT
 
 
* SKY/WEATHER........MOSTLY CLOUDY.  
* MIN TEMPERATURE....39-46.  
24 HR TREND......3 DEGREES DOWN.  
* MAX HUMIDITY.......83-91 PERCENT VALLEYS AND 69-77 PERCENT  
RIDGES.  
24 HR TREND......15 PERCENT UP.  
* 20FT WINDS.........  
VALLEYS/LWR SLOPES...SOUTHWEST 10 TO 15 MPH.  
RIDGES/UPR SLOPES....SOUTHWEST 12 TO 17 MPH. GUSTS UP TO 30 MPH  
* DECREASING TO 15 MPH AFTER MIDNIGHT.  
* CHC WETTING RAIN...0 PERCENT.  
* LAL................1.  
* HAINES INDEX.......3.  
* MIXING HEIGHT......400-1400 FT AGL.  
* TRANSPORT WINDS....SOUTHWEST AROUND 20 MPH DECREASING TO AROUND  
10 MPH AFTER MIDNIGHT.  
   
FRIDAY
 
 
* SKY/WEATHER........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS  
IN THE MORNING.  
* MAX TEMPERATURE....62-68 VALLEYS AND 55-62 RIDGES.  
24 HR TREND......6 DEGREES DOWN.  
* MIN HUMIDITY.......31-39 PERCENT.  
24 HR TREND......10 PERCENT UP.  
* 20FT WINDS.........  
VALLEYS/LWR SLOPES...SOUTH 4 TO 7 MPH INCREASING TO SOUTHWEST  
* 14 TO 19 MPH IN THE AFTERNOON.  
RIDGES/UPR SLOPES....SOUTHWEST 6 TO 9 MPH WITH GUSTS TO AROUND  
* 15 MPH INCREASING TO 15 TO 20 MPH WITH  
* GUSTS TO AROUND 30 MPH IN THE AFTERNOON.  
* CHC WETTING RAIN...0 PERCENT.  
* LAL................1.  
* HAINES INDEX.......3.  
* MIXING HEIGHT......5750-6750 FT AGL.  
* TRANSPORT WINDS....SOUTH AROUND 10 MPH INCREASING TO SOUTHWEST  
AROUND 25 MPH IN THE AFTERNOON.  
   
FRIDAY NIGHT
 
 
* SKY/WEATHER........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS  
IN THE EVENING, THEN CHANCE OF RAIN SHOWERS AFTER MIDNIGHT.  
* MIN TEMPERATURE....39-46.  
24 HR TREND......LITTLE CHANGE.  
* MAX HUMIDITY.......83-91 PERCENT VALLEYS AND 77-85 PERCENT  
RIDGES.  
24 HR TREND......5 PERCENT UP.  
* 20FT WINDS.........  
VALLEYS/LWR SLOPES...SOUTHWEST 12 TO 17 MPH.  
RIDGES/UPR SLOPES....SOUTHWEST 8 TO 18 MPH WITH GUSTS TO AROUND  
* 30 MPH.  
* CHC WETTING RAIN...10 PERCENT.  
* LAL................1.  
* HAINES INDEX.......2.  
* MIXING HEIGHT......500-1500 FT AGL.  
* TRANSPORT WINDS....SOUTHWEST AROUND 25 MPH DECREASING TO AROUND  
15 MPH AFTER MIDNIGHT.  
   
SATURDAY
 
 
* SKY/WEATHER........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS.  
* MAX TEMPERATURE....AROUND 60 VALLEYS AND 50-57 RIDGES.  
24 HR TREND......5 DEGREES DOWN.  
* MIN HUMIDITY.......37-45 PERCENT.  
24 HR TREND......4 PERCENT UP.  
* 20FT WINDS.........  
VALLEYS/LWR SLOPES...WEST 12 TO 17 MPH.  
RIDGES/UPR SLOPES....WEST 9 TO 19 MPH WITH GUSTS TO AROUND 30  
* MPH.  
* CHC WETTING RAIN...10 PERCENT.  
* LAL................1.  
* HAINES INDEX.......3.  
* MIXING HEIGHT......6750-7750 FT AGL.  
* TRANSPORT WINDS....WEST 20 TO 25 MPH.  
   
FORECAST DAYS 3 THROUGH 7...
 
   
SUNDAY
 
PARTLY CLOUDY. LOWS 30 TO 37. HIGHS 49 TO 56. WEST  
WINDS 10 TO 20 MPH WITH GUSTS TO AROUND 30 MPH.    
MONDAY
 
MOSTLY CLEAR. LOWS 31 TO 38. HIGHS 56 TO 63. WEST WINDS  
5 TO 10 MPH WITH GUSTS TO AROUND 20 MPH.    
TUESDAY
 
CLEAR. LOWS 35 TO 42. HIGHS 60 TO 67. NORTHWEST WINDS  
5 TO 10 MPH WITH GUSTS TO AROUND 20 MPH.    
WEDNESDAY
 
CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE LOWER  
60S.    
THURSDAY
 
CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE MID 60S.  
 

 
 
IDZ413-251100-  
CARIBOU RANGE/CARIBOU NF-  
235 PM MDT THU SEP 24 2020  
   
TONIGHT
 
 
* SKY/WEATHER........PARTLY CLOUDY.  
* MIN TEMPERATURE....41-48.  
24 HR TREND......3 DEGREES DOWN.  
* MAX HUMIDITY.......69-77 PERCENT VALLEYS AND 62-70 PERCENT  
RIDGES.  
24 HR TREND......14 PERCENT UP.  
* 20FT WINDS.........  
VALLEYS/LWR SLOPES...NORTHWEST 12 TO 17 MPH.  
RIDGES/UPR SLOPES....WEST 12 TO 17 MPH WITH GUSTS TO AROUND 25  
* MPH DECREASING TO 4 TO 7 MPH WITH GUSTS  
* TO AROUND 15 MPH AFTER MIDNIGHT.  
* CHC WETTING RAIN...0 PERCENT.  
* LAL................1.  
* HAINES INDEX.......4.  
* MIXING HEIGHT......0-1000 FT AGL.  
* TRANSPORT WINDS....WEST AROUND 20 MPH BECOMING NORTHWEST AROUND  
10 MPH AFTER MIDNIGHT.  
   
FRIDAY
 
 
* SKY/WEATHER........PARTLY CLOUDY.  
* MAX TEMPERATURE....68-75 VALLEYS AND 61-68 RIDGES.  
24 HR TREND......4 DEGREES DOWN.  
* MIN HUMIDITY.......24-32 PERCENT.  
24 HR TREND......7 PERCENT UP.  
* 20FT WINDS.........  
VALLEYS/LWR SLOPES...SOUTH 5 TO 8 MPH INCREASING TO SOUTHWEST  
* 14 TO 19 MPH IN THE AFTERNOON.  
RIDGES/UPR SLOPES....SOUTHWEST 5 TO 8 MPH WITH GUSTS TO AROUND  
* 15 MPH INCREASING TO 15 TO 20 MPH WITH  
* GUSTS TO AROUND 30 MPH IN THE AFTERNOON.  
* CHC WETTING RAIN...0 PERCENT.  
* LAL................1.  
* HAINES INDEX.......4.  
* MIXING HEIGHT......8500-9500 FT AGL.  
* TRANSPORT WINDS....LIGHT WINDS BECOMING SOUTHWEST AROUND 20 MPH  
IN THE AFTERNOON.  
   
FRIDAY NIGHT
 
 
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.  
SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT.  
* MIN TEMPERATURE....43-50.  
24 HR TREND......LITTLE CHANGE.  
* MAX HUMIDITY.......69-77 PERCENT.  
24 HR TREND......LITTLE CHANGE.  
* 20FT WINDS.........  
VALLEYS/LWR SLOPES...WEST 11 TO 16 MPH.  
RIDGES/UPR SLOPES....WEST 12 TO 17 MPH WITH GUSTS TO AROUND 25  
* MPH.  
* CHC WETTING RAIN...0 PERCENT.  
* LAL................1.  
* HAINES INDEX.......2.  
* MIXING HEIGHT......100-1100 FT AGL.  
* TRANSPORT WINDS....WEST 10 TO 15 MPH.  
   
SATURDAY
 
 
* SKY/WEATHER........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS  
THROUGH THE DAY.  
* MAX TEMPERATURE....61-68 VALLEYS AND 54-61 RIDGES.  
24 HR TREND......7 DEGREES DOWN.  
* MIN HUMIDITY.......34-42 PERCENT VALLEYS AND 38-46 PERCENT  
RIDGES.  
24 HR TREND......12 PERCENT UP.  
* 20FT WINDS.........  
VALLEYS/LWR SLOPES...WEST 12 TO 17 MPH.  
RIDGES/UPR SLOPES....WEST 8 TO 18 MPH WITH GUSTS TO AROUND 30  
* MPH.  
* CHC WETTING RAIN...0 PERCENT.  
* LAL................1.  
* HAINES INDEX.......2.  
* 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...
 
   
SUNDAY
 
BREEZY. MOSTLY CLEAR. LOWS 35 TO 42. HIGHS 57 TO 64.  
WEST WINDS 15 TO 25 MPH WITH GUSTS TO AROUND 30 MPH.    
MONDAY
 
CLEAR. LOWS 33 TO 40. HIGHS 63 TO 70. NORTHWEST WINDS  
5 TO 10 MPH WITH GUSTS TO AROUND 15 MPH.    
TUESDAY
 
CLEAR. LOWS 36 TO 43. HIGHS 67 TO 74. NORTH WINDS 5 TO  
10 MPH WITH GUSTS TO AROUND 20 MPH.    
WEDNESDAY
 
CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER  
70S.    
THURSDAY
 
CLEAR. LOWS AROUND 40. HIGHS IN THE LOWER 70S.  
 

 
   
OUTLOOK FOR FRIDAY OCT 2ND THROUGH THURSDAY OCT 8TH
 
ABOVE  
NORMAL TEMPERATURES AND BELOW NORMAL PRECIPITATION.  
 

 
 
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