505  
FNUS55 KBYZ 261026  
FWFBYZ  
 
FIRE WEATHER PLANNING FORECAST FOR SCEN AND SERN MONTANA  
NATIONAL WEATHER SERVICE BILLINGS MT  
426 AM MDT WED APR 26 2017  
   
DISCUSSION
 
 
THE COOL AND UNSETTLED WEATHER WILL CONTINUE INTO THE WEEKEND.  
SCATTERED SHOWERS WILL DEVELOP OVER THE WEST TODAY AND SPREAD INTO  
CENTRAL LOCATIONS BY THIS EVENING. A FEW LIGHTNING STRIKES ARE  
POSSIBLE OVER ZONE 123, BUT THESE SHOULD BE ISOLATED. SHOWERS WILL  
BECOME MORE NUMEROUS THURSDAY AND CONTINUE THURSDAY NIGHT AND  
FRIDAY FOR WESTERN AND CENTRAL LOCATIONS, INCLUDING NORTHERN  
WYOMING. HEAVY MOUNTAIN SNOW IS EXPECTED ONCE AGAIN OVER THE  
BIGHORNS WITH SIGNIFICANT ACCUMULATION POSSIBLE. THE  
BEARTOOTH/ABSAROKAS WILL SEE PERIODS OF SNOW THROUGH FRIDAY TOO  
WITH SEVERAL INCHES ACCUMULATION. SOME LOCATIONS FROM BILLINGS TO  
SHERIDAN, COULD PICK UP OVER AN INCH OF RAINFALL THURSDAY THROUGH  
FRIDAY, WITH THE HEAVIEST PRECIPITATION CONCENTRATED OVER SHERIDAN  
COUNTY. SOME WET SNOW IS POSSIBLE THURSDAY NIGHT OVER MOST  
LOCATIONS, WITH POSSIBLE ACCUMULATIONS OVER THE HIGHER HILLS. TWH  
 
MTZ123-262230-  
GALLATIN NATIONAL FOREST-  
426 AM MDT WED APR 26 2017  
   
TODAY
 
 
* SKY/WEATHER...........CLOUDY. PATCHY FOG IN THE MORNING.  
SCATTERED RAIN AND SNOW SHOWERS IN THE MORNING...THEN NUMEROUS  
RAIN SHOWERS WITH ISOLATED THUNDERSTORMS IN THE AFTERNOON.  
* MAX TEMPERATURE.......43-53 AT 5000 FEET...36-46 AT 7000 FEET.  
* 24 HR TREND.........2 DEGREES WARMER.  
* MIN HUMIDITY..........52-62 PERCENT AT 5000 FEET...60-70 PERCENT  
AT 7000 FEET.  
* 24 HR TREND.........1 PERCENT WETTER.  
* WIND (20 FT)  
* SLOPE/VALLEY.........SOUTHWEST WINDS 5 TO 15 MPH.  
* RIDGETOP.............SOUTHWEST 10 TO 20 MPH.  
* LAL...................2...1 TO 8 STRIKES/15 MIN/CELL.  
* CWR...................50 PERCENT.  
* HAINES INDEX..........3.  
   
TONIGHT
 
 
* SKY/WEATHER...........CLOUDY WITH NUMEROUS RAIN SHOWERS AND  
ISOLATED THUNDESTORMS IN THE EVENING. NUMEROUS RAIN AND SNOW  
SHOWERS OVERNIGHT.  
* MIN TEMPERATURE.......26-34 AT 5000 FEET...20-30 AT 7000 FEET.  
* 24 HR TREND.........1 DEGREE WARMER.  
* MAX HUMIDITY..........84-94 PERCENT AT 5000 FEET...87-97 PERCENT  
AT 7000 FEET.  
* 24 HR TREND.........2 PERCENT DRIER.  
* WIND (20 FT)  
* SLOPE/VALLEY.........WEST WINDS 5 TO 15 MPH.  
* RIDGETOP.............NORTHWEST 10 TO 20 MPH.  
* LAL...................2...1 TO 8 STRIKES/15 MIN/CELL.  
* CWR...................80 PERCENT.  
   
THURSDAY
 
 
* SKY/WEATHER...........CLOUDY WITH RAIN AND SNOW LIKELY.  
* MAX TEMPERATURE.......37-47 AT 5000 FEET...31-41 AT 7000 FEET.  
* 24 HR TREND.........6 DEGREES COOLER.  
* MIN HUMIDITY..........47-57 PERCENT AT 5000 FEET...55-65 PERCENT  
AT 7000 FEET.  
* 24 HR TREND.........7 PERCENT DRIER.  
* WIND (20 FT)  
* SLOPE/VALLEY.........WEST WINDS 10 TO 20 MPH WITH GUSTS TO AROUND  
35 MPH.  
* RIDGETOP.............NORTHWEST 15 TO 30 MPH.  
* LAL...................1...NO THUNDERSTORMS.  
* CWR...................60 PERCENT.  
* HAINES INDEX..........2.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
THURSDAY NIGHT
 
CLOUDY. SCATTERED SNOW AND RAIN SHOWERS. LOWS  
21 TO 30. WEST WINDS 10 TO 20 MPH WITH GUSTS TO AROUND 30 MPH.    
FRIDAY
 
CLOUDY. NUMEROUS SHOWERS AND SCATTERED SNOW SHOWERS.  
LOWS 21 TO 30. HIGHS 37 TO 47. NORTHWEST WINDS 5 TO 15 MPH.    
SATURDAY
 
PARTLY CLOUDY. ISOLATED RAIN AND SNOW SHOWERS. LOWS  
24 TO 33. HIGHS 42 TO 52. WEST WINDS 5 TO 15 MPH.    
SUNDAY
 
MOSTLY CLOUDY. SCATTERED RAIN AND SNOW SHOWERS. LOWS  
28 TO 36. HIGHS 46 TO 56. SOUTHWEST WINDS 5 TO 15 MPH.    
MONDAY
 
MOSTLY CLOUDY. SCATTERED RAIN AND SNOW SHOWERS. LOWS  
29 TO 36. HIGHS 44 TO 54.    
TUESDAY
 
MOSTLY CLOUDY. SCATTERED RAIN AND SNOW SHOWERS. HIGHS  
45 TO 54.  
 

 
 
MTZ124-262230-  
WHEATLAND COUNTY/SWEET GRASS COUNTY-  
426 AM MDT WED APR 26 2017  
   
TODAY
 
 
* SKY/WEATHER...........MOSTLY CLOUDY. PATCHY FOG IN THE MORNING.  
ISOLATED RAIN AND SNOW SHOWERS IN THE MORNING...THEN NUMEROUS  
RAIN SHOWERS WITH ISOLATED THUNDERSTORMS IN THE AFTERNOON.  
* MAX TEMPERATURE.......48-53.  
* 24 HR TREND.........8 DEGREES WARMER.  
* MIN HUMIDITY..........55-60 PERCENT.  
* 24 HR TREND.........19 PERCENT DRIER.  
* WIND (20 FT)  
* PLAINS...............SOUTH WINDS 5 TO 15 MPH.  
* LAL...................2...1 TO 8 STRIKES/15 MIN/CELL.  
* CWR...................40 PERCENT.  
* HAINES INDEX..........3.  
   
TONIGHT
 
 
* SKY/WEATHER...........MOSTLY CLOUDY. NUMEROUS RAIN SHOWERS WITH  
ISOLATED THUNDERSTORMS IN THE EVENING...THEN SCATTERED RAIN AND  
SNOW SHOWERS OVERNIGHT.  
* MIN TEMPERATURE.......31-36.  
* 24 HR TREND.........4 DEGREES WARMER.  
* MAX HUMIDITY..........89-94 PERCENT.  
* 24 HR TREND.........4 PERCENT DRIER.  
* WIND (20 FT)  
* PLAINS...............SOUTHWEST WINDS 5 TO 10 MPH.  
* LAL...................2...1 TO 8 STRIKES/15 MIN/CELL.  
* CWR...................30 PERCENT.  
   
THURSDAY
 
 
* SKY/WEATHER...........CLOUDY. SCATTERED RAIN AND SNOW SHOWERS IN  
THE MORNING...THEN RAIN LIKELY IN THE AFTERNOON.  
* MAX TEMPERATURE.......45-50.  
* 24 HR TREND.........3 DEGREES COOLER.  
* MIN HUMIDITY..........46-51 PERCENT.  
* 24 HR TREND.........9 PERCENT DRIER.  
* WIND (20 FT)  
* PLAINS...............WEST WINDS 10 TO 20 MPH. GUSTS UP TO 30 MPH  
IN THE AFTERNOON.  
* LAL...................1...NO THUNDERSTORMS.  
* CWR...................40 PERCENT.  
* HAINES INDEX..........2.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
THURSDAY NIGHT
 
CLOUDY. RAIN LIKELY AND SCATTERED SNOW SHOWERS.  
LOWS 28 TO 33. NORTHWEST WINDS 10 TO 20 MPH.    
FRIDAY
 
CLOUDY. SCATTERED RAIN AND SNOW SHOWERS. LOWS 27 TO 32.  
HIGHS 43 TO 48. NORTHWEST WINDS 5 TO 15 MPH.    
SATURDAY
 
PARTLY CLOUDY. ISOLATED RAIN AND SNOW SHOWERS. LOWS  
27 TO 32. HIGHS 50 TO 55. SOUTHWEST WINDS 5 TO 15 MPH.    
SUNDAY
 
MOSTLY CLOUDY. SCATTERED SHOWERS WITH ISOLATED SNOW  
SHOWERS. LOWS 30 TO 35. HIGHS 55 TO 60. WEST WINDS 5 TO 15 MPH.    
MONDAY
 
MOSTLY CLOUDY. SCATTERED SHOWERS WITH ISOLATED SNOW  
SHOWERS. LOWS 31 TO 36. HIGHS 52 TO 57.    
TUESDAY
 
MOSTLY CLOUDY. SCATTERED RAIN AND SNOW SHOWERS. HIGHS  
51 TO 56.  
 

 
 
MTZ125-262230-  
STILLWATER COUNTY-  
426 AM MDT WED APR 26 2017  
   
TODAY
 
 
* SKY/WEATHER...........MOSTLY CLOUDY. PATCHY FOG IN THE MORNING.  
ISOLATED RAIN AND SNOW SHOWERS IN THE MORNING...THEN SCATTERED  
RAIN SHOWERS IN THE AFTERNOON.  
* MAX TEMPERATURE.......50-55.  
* 24 HR TREND.........9 DEGREES WARMER.  
* MIN HUMIDITY..........48-53 PERCENT.  
* 24 HR TREND.........20 PERCENT DRIER.  
* WIND (20 FT)  
* PLAINS...............SOUTH WINDS 5 TO 10 MPH.  
* LAL...................1...NO THUNDERSTORMS.  
* CWR...................30 PERCENT.  
* HAINES INDEX..........3.  
   
TONIGHT
 
 
* SKY/WEATHER...........CLOUDY. SCATTERED RAIN SHOWERS IN THE  
EVENING...THEN NUMEROUS RAIN AND SNOW SHOWERS OVERNIGHT.  
* MIN TEMPERATURE.......32-37.  
* 24 HR TREND.........2 DEGREES WARMER.  
* MAX HUMIDITY..........85-90 PERCENT.  
* 24 HR TREND.........6 PERCENT DRIER.  
* WIND (20 FT)  
* PLAINS...............WEST WINDS 5 TO 15 MPH.  
* LAL...................1...NO THUNDERSTORMS.  
* CWR...................60 PERCENT.  
   
THURSDAY
 
 
* SKY/WEATHER...........CLOUDY. RAIN LIKELY. RAIN MIXED WITH SNOW  
IN THE MORNING.  
* MAX TEMPERATURE.......44-49.  
* 24 HR TREND.........6 DEGREES COOLER.  
* MIN HUMIDITY..........46-51 PERCENT.  
* 24 HR TREND.........2 PERCENT DRIER.  
* WIND (20 FT)  
* PLAINS...............WEST WINDS 15 TO 25 MPH. GUSTS UP TO 35 MPH  
IN THE AFTERNOON.  
* LAL...................1...NO THUNDERSTORMS.  
* CWR...................50 PERCENT.  
* HAINES INDEX..........2.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
THURSDAY NIGHT
 
CLOUDY. SCATTERED SNOW AND RAIN SHOWERS. LOWS  
28 TO 33. NORTHWEST WINDS 15 TO 25 MPH WITH GUSTS TO AROUND  
30 MPH.    
FRIDAY
 
CLOUDY. NUMEROUS SHOWERS AND SCATTERED SNOW SHOWERS.  
LOWS 28 TO 33. HIGHS 43 TO 48. NORTHWEST WINDS 5 TO 15 MPH.    
SATURDAY
 
PARTLY CLOUDY. ISOLATED RAIN AND SNOW SHOWERS. LOWS  
29 TO 34. HIGHS 48 TO 53. WEST WINDS 5 TO 10 MPH.    
SUNDAY
 
MOSTLY CLOUDY. SCATTERED RAIN AND SNOW SHOWERS. LOWS  
33 TO 38. HIGHS 55 TO 60. WEST WINDS 5 TO 15 MPH.    
MONDAY
 
MOSTLY CLOUDY. SCATTERED RAIN AND SNOW SHOWERS. LOWS  
33 TO 38. HIGHS 52 TO 57.    
TUESDAY
 
MOSTLY CLOUDY. SCATTERED SHOWERS. HIGHS 51 TO 56.  
 

 
 
MTZ126-262230-  
BEARTOOTH RANGER DISTRICT CUSTER NATIONAL FOREST-  
426 AM MDT WED APR 26 2017  
   
TODAY
 
 
* SKY/WEATHER...........MOSTLY CLOUDY. SCATTERED SNOW SHOWERS IN  
THE MORNING...THEN NUMEROUS RAIN AND SNOW SHOWERS IN THE  
AFTERNOON.  
* MAX TEMPERATURE.......47-57 AT 5000 FEET...38-48 AT 7000 FEET.  
* 24 HR TREND.........2 DEGREES WARMER.  
* MIN HUMIDITY..........41-51 PERCENT AT 5000 FEET...53-63 PERCENT  
AT 7000 FEET.  
* 24 HR TREND.........10 PERCENT DRIER.  
* WIND (20 FT)  
* SLOPE/VALLEY.........SOUTHWEST WINDS 5 TO 10 MPH.  
* RIDGETOP.............WEST 10 TO 20 MPH.  
* LAL...................1...NO THUNDERSTORMS.  
* CWR...................50 PERCENT.  
* HAINES INDEX..........3.  
   
TONIGHT
 
 
* SKY/WEATHER...........CLOUDY. SCATTERED SNOW SHOWERS IN THE  
EVENING...THEN SNOW SHOWERS OVERNIGHT.  
* MIN TEMPERATURE.......30-35 AT 5000 FEET...23-32 AT 7000 FEET.  
* 24 HR TREND.........3 DEGREES COOLER.  
* MAX HUMIDITY..........83-89 PERCENT.  
* 24 HR TREND.........10 PERCENT DRIER.  
* WIND (20 FT)  
* SLOPE/VALLEY.........NORTHWEST WINDS 5 TO 10 MPH.  
* RIDGETOP.............NORTHWEST 5 TO 15 MPH.  
* LAL...................1...NO THUNDERSTORMS.  
* CWR...................70 PERCENT.  
   
THURSDAY
 
 
* SKY/WEATHER...........CLOUDY. SNOW. SNOW MAY BE MIXED WITH RAIN  
IN THE AFTERNOON.  
* MAX TEMPERATURE.......38-47 AT 5000 FEET...30-40 AT 7000 FEET.  
* 24 HR TREND.........6 DEGREES COOLER.  
* MIN HUMIDITY..........51-61 PERCENT AT 5000 FEET...59-69 PERCENT  
AT 7000 FEET.  
* 24 HR TREND.........7 PERCENT WETTER.  
* WIND (20 FT)  
* SLOPE/VALLEY.........NORTHWEST WINDS 10 TO 20 MPH. GUSTS UP TO 30  
MPH IN THE AFTERNOON.  
* RIDGETOP.............NORTHWEST 15 TO 25 MPH.  
* LAL...................1...NO THUNDERSTORMS.  
* CWR...................70 PERCENT.  
* HAINES INDEX..........2.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
THURSDAY NIGHT
 
CLOUDY. SNOW LIKELY. LOWS 26 TO 33. NORTHWEST  
WINDS 10 TO 20 MPH WITH GUSTS TO AROUND 30 MPH.    
FRIDAY
 
CLOUDY. NUMEROUS SNOW SHOWERS. LOWS 26 TO 33. HIGHS  
35 TO 45. NORTH WINDS 5 TO 15 MPH.    
SATURDAY
 
PARTLY CLOUDY. SCATTERED SNOW SHOWERS. LOWS 27 TO 35.  
HIGHS 42 TO 51. EAST WINDS 5 TO 10 MPH.    
SUNDAY
 
MOSTLY CLOUDY. SCATTERED SNOW AND RAIN SHOWERS. LOWS  
29 TO 39. HIGHS 48 TO 58. WEST WINDS 5 TO 15 MPH.    
MONDAY
 
MOSTLY CLOUDY. SCATTERED SNOW AND RAIN SHOWERS. LOWS  
31 TO 40. HIGHS 45 TO 55.    
TUESDAY
 
MOSTLY CLOUDY. SCATTERED SNOW AND RAIN SHOWERS. HIGHS  
44 TO 54.  
 

 
 
MTZ127-262230-  
GOLDEN VALLEY COUNTY/MUSSELSHELL COUNTY-  
426 AM MDT WED APR 26 2017  
   
TODAY
 
 
* SKY/WEATHER...........MOSTLY CLOUDY. SCATTERED RAIN SHOWERS IN  
THE AFTERNOON.  
* MAX TEMPERATURE.......47-52.  
* 24 HR TREND.........14 DEGREES WARMER.  
* MIN HUMIDITY..........49-54 PERCENT.  
* 24 HR TREND.........31 PERCENT DRIER.  
* WIND (20 FT)  
* PLAINS...............SOUTHEAST WINDS 5 TO 15 MPH.  
* LAL...................1...NO THUNDERSTORMS.  
* CWR...................10 PERCENT.  
* HAINES INDEX..........3.  
   
TONIGHT
 
 
* SKY/WEATHER...........CLOUDY WITH SCATTERED RAIN AND SNOW  
SHOWERS.  
* MIN TEMPERATURE.......30-35.  
* 24 HR TREND.........3 DEGREES WARMER.  
* MAX HUMIDITY..........90-95 PERCENT.  
* 24 HR TREND.........4 PERCENT DRIER.  
* WIND (20 FT)  
* PLAINS...............EAST WINDS 5 TO 15 MPH.  
* LAL...................1...NO THUNDERSTORMS.  
* CWR...................30 PERCENT.  
   
THURSDAY
 
 
* SKY/WEATHER...........CLOUDY. RAIN AND SNOW LIKELY.  
* MAX TEMPERATURE.......40-45.  
* 24 HR TREND.........7 DEGREES COOLER.  
* MIN HUMIDITY..........68-73 PERCENT.  
* 24 HR TREND.........19 PERCENT WETTER.  
* WIND (20 FT)  
* PLAINS...............NORTH WINDS 5 TO 15 MPH.  
* LAL...................1...NO THUNDERSTORMS.  
* CWR...................60 PERCENT.  
* HAINES INDEX..........2.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
THURSDAY NIGHT
 
CLOUDY. SNOW AND RAIN LIKELY. LOWS 29 TO 34.  
NORTHWEST WINDS 5 TO 15 MPH.    
FRIDAY
 
CLOUDY. NUMEROUS SNOW SHOWERS AND SCATTERED SHOWERS.  
LOWS 30 TO 35. HIGHS 41 TO 46. NORTH WINDS 5 TO 15 MPH.    
SATURDAY
 
PARTLY CLOUDY. ISOLATED RAIN AND SNOW SHOWERS. LOWS  
32 TO 37. HIGHS 48 TO 53. SOUTHWEST WINDS 5 TO 15 MPH.    
SUNDAY
 
MOSTLY CLOUDY. SCATTERED SHOWERS. LOWS 35 TO 40. HIGHS  
53 TO 58. WEST WINDS 5 TO 15 MPH.    
MONDAY
 
MOSTLY CLOUDY. SCATTERED SHOWERS. LOWS 36 TO 41. HIGHS  
50 TO 55.    
TUESDAY
 
MOSTLY CLOUDY. SCATTERED SHOWERS. HIGHS 49 TO 54.  
 

 
 
MTZ128-262230-  
YELLOWSTONE COUNTY-  
426 AM MDT WED APR 26 2017  
   
TODAY
 
 
* SKY/WEATHER...........MOSTLY CLOUDY. PATCHY FOG IN THE MORNING.  
SCATTERED RAIN SHOWERS IN THE AFTERNOON.  
* MAX TEMPERATURE.......53-58.  
* 24 HR TREND.........16 DEGREES WARMER.  
* MIN HUMIDITY..........45-50 PERCENT.  
* 24 HR TREND.........17 PERCENT DRIER.  
* WIND (20 FT)  
* PLAINS...............SOUTHEAST WINDS 5 TO 10 MPH.  
* LAL...................1...NO THUNDERSTORMS.  
* CWR...................LESS THAN 10 PERCENT.  
* HAINES INDEX..........3.  
   
TONIGHT
 
 
* SKY/WEATHER...........MOSTLY CLOUDY WITH SCATTERED RAIN AND SNOW  
SHOWERS.  
* MIN TEMPERATURE.......35-40.  
* 24 HR TREND.........5 DEGREES WARMER.  
* MAX HUMIDITY..........83-88 PERCENT.  
* 24 HR TREND.........6 PERCENT DRIER.  
* WIND (20 FT)  
* PLAINS...............SOUTHEAST WINDS 5 TO 10 MPH IN THE  
EVENING...BECOMING NORTH OVERNIGHT.  
* LAL...................1...NO THUNDERSTORMS.  
* CWR...................20 PERCENT.  
   
THURSDAY
 
 
* SKY/WEATHER...........CLOUDY WITH RAIN LIKELY.  
* MAX TEMPERATURE.......45-50.  
* 24 HR TREND.........8 DEGREES COOLER.  
* MIN HUMIDITY..........61-66 PERCENT.  
* 24 HR TREND.........16 PERCENT WETTER.  
* WIND (20 FT)  
* PLAINS...............NORTHWEST WINDS 10 TO 20 MPH.  
* LAL...................1...NO THUNDERSTORMS.  
* CWR...................60 PERCENT.  
* HAINES INDEX..........2.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
THURSDAY NIGHT
 
CLOUDY. RAIN AND SNOW LIKELY. LOWS 32 TO 37.  
NORTHWEST WINDS 10 TO 20 MPH.    
FRIDAY
 
CLOUDY. NUMEROUS SHOWERS WITH ISOLATED SNOW SHOWERS.  
LOWS 32 TO 37. HIGHS 45 TO 50. NORTHWEST WINDS 5 TO 15 MPH.    
SATURDAY
 
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 33 TO 38. HIGHS  
51 TO 56. SOUTHWEST WINDS 5 TO 10 MPH.    
SUNDAY
 
MOSTLY CLOUDY. SCATTERED SHOWERS. LOWS 36 TO 41. HIGHS  
58 TO 63. WEST WINDS 5 TO 15 MPH.    
MONDAY
 
MOSTLY CLOUDY. SCATTERED SHOWERS. LOWS 38 TO 43. HIGHS  
55 TO 60.    
TUESDAY
 
MOSTLY CLOUDY. SCATTERED SHOWERS. HIGHS 54 TO 59.  
 

 
 
MTZ129-262230-  
CROW INDIAN RESERVATION/BIGHORN CANYON REC AREA-  
426 AM MDT WED APR 26 2017  
   
TODAY
 
 
* SKY/WEATHER...........PARTLY SUNNY. PATCHY FOG IN THE MORNING.  
ISOLATED RAIN SHOWERS IN THE AFTERNOON.  
* MAX TEMPERATURE.......44-54 AT 5000 FEET...41-47 AT 7000 FEET.  
* 24 HR TREND.........14 DEGREES WARMER.  
* MIN HUMIDITY..........50-60 PERCENT AT 5000 FEET...54-64 PERCENT  
AT 7000 FEET.  
* 24 HR TREND.........25 PERCENT DRIER.  
* WIND (20 FT)  
* SLOPE/VALLEY.........SOUTHEAST WINDS 5 TO 10 MPH.  
* RIDGETOP.............WEST 5 TO 15 MPH.  
* LAL...................1...NO THUNDERSTORMS.  
* CWR...................LESS THAN 10 PERCENT.  
* HAINES INDEX..........3.  
   
TONIGHT
 
 
* SKY/WEATHER...........MOSTLY CLOUDY. ISOLATED RAIN AND SNOW  
SHOWERS IN THE EVENING...THEN SCATTERED SNOW SHOWERS OVERNIGHT.  
* MIN TEMPERATURE.......27-36 AT 5000 FEET...25-31 AT 7000 FEET.  
* 24 HR TREND.........5 DEGREES WARMER.  
* MAX HUMIDITY..........92-97 PERCENT.  
* 24 HR TREND.........6 PERCENT DRIER.  
* WIND (20 FT)  
* SLOPE/VALLEY.........SOUTH WINDS 5 TO 15 MPH.  
* RIDGETOP.............SOUTH 5 TO 10 MPH.  
* LAL...................1...NO THUNDERSTORMS.  
* CWR...................LESS THAN 10 PERCENT.  
   
THURSDAY
 
 
* SKY/WEATHER...........CLOUDY. SCATTERED SNOW SHOWERS IN THE  
MORNING...THEN RAIN AND SNOW SHOWERS IN THE AFTERNOON.  
* MAX TEMPERATURE.......35-44 AT 5000 FEET...31-37 AT 7000 FEET.  
* 24 HR TREND.........9 DEGREES COOLER.  
* MIN HUMIDITY..........65-75 PERCENT AT 5000 FEET...70-79 PERCENT  
AT 7000 FEET.  
* 24 HR TREND.........21 PERCENT WETTER.  
* WIND (20 FT)  
* SLOPE/VALLEY.........NORTHWEST WINDS 10 TO 20 MPH. GUSTS UP TO 30  
MPH IN THE AFTERNOON.  
* RIDGETOP.............NORTH 5 TO 10 MPH.  
* LAL...................1...NO THUNDERSTORMS.  
* CWR...................70 PERCENT.  
* HAINES INDEX..........2.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
THURSDAY NIGHT
 
CLOUDY, SNOW. LOWS 25 TO 31. NORTHWEST WINDS  
10 TO 20 MPH.    
FRIDAY
 
CLOUDY. NUMEROUS SNOW SHOWERS AND SCATTERED SHOWERS.  
LOWS 24 TO 31. HIGHS 34 TO 44. NORTHWEST WINDS 5 TO 10 MPH.    
SATURDAY
 
MOSTLY CLOUDY. ISOLATED RAIN AND SNOW SHOWERS. LOWS  
24 TO 33. HIGHS 39 TO 49. SOUTH WINDS 5 TO 15 MPH.    
SUNDAY
 
MOSTLY CLOUDY. SCATTERED SHOWERS WITH ISOLATED SNOW  
SHOWERS. LOWS 27 TO 37. HIGHS 46 TO 56. WEST WINDS 5 TO 15 MPH.    
MONDAY
 
MOSTLY CLOUDY. SCATTERED RAIN AND SNOW SHOWERS. LOWS  
29 TO 37. HIGHS 44 TO 54.    
TUESDAY
 
MOSTLY CLOUDY. SCATTERED RAIN AND SNOW SHOWERS. HIGHS  
42 TO 52.  
 

 
 
MTZ130-262230-  
NORTHERN ROSEBUD/NORTHERN TREASURE COUNTIES-  
426 AM MDT WED APR 26 2017  
   
TODAY
 
 
* SKY/WEATHER...........PARTLY SUNNY.  
* MAX TEMPERATURE.......51-56.  
* 24 HR TREND.........16 DEGREES WARMER.  
* MIN HUMIDITY..........41-46 PERCENT.  
* 24 HR TREND.........24 PERCENT DRIER.  
* WIND (20 FT)  
* PLAINS...............SOUTHEAST WINDS 5 TO 15 MPH.  
* LAL...................1...NO THUNDERSTORMS.  
* CWR...................ZERO.  
* HAINES INDEX..........3.  
   
TONIGHT
 
 
* SKY/WEATHER...........MOSTLY CLOUDY. ISOLATED RAIN AND SNOW  
SHOWERS OVERNIGHT.  
* MIN TEMPERATURE.......33-38.  
* 24 HR TREND.........5 DEGREES WARMER.  
* MAX HUMIDITY..........83-88 PERCENT.  
* 24 HR TREND.........10 PERCENT DRIER.  
* WIND (20 FT)  
* PLAINS...............EAST WINDS 5 TO 15 MPH.  
* LAL...................1...NO THUNDERSTORMS.  
* CWR...................LESS THAN 10 PERCENT.  
   
THURSDAY
 
 
* SKY/WEATHER...........SCATTERED RAIN AND SNOW SHOWERS.  
* MAX TEMPERATURE.......49-54.  
* 24 HR TREND.........2 DEGREES COOLER.  
* MIN HUMIDITY..........47-52 PERCENT.  
* 24 HR TREND.........6 PERCENT WETTER.  
* WIND (20 FT)  
* PLAINS...............EAST WINDS 5 TO 15 MPH.  
* LAL...................1...NO THUNDERSTORMS.  
* CWR...................10 PERCENT.  
* HAINES INDEX..........2.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
THURSDAY NIGHT
 
CLOUDY. SCATTERED RAIN AND SNOW SHOWERS. LOWS  
34 TO 39. NORTHEAST WINDS 5 TO 15 MPH.    
FRIDAY
 
CLOUDY. SCATTERED RAIN AND SNOW SHOWERS. LOWS 34 TO 39.  
HIGHS 48 TO 53. NORTHEAST WINDS 5 TO 10 MPH.    
SATURDAY
 
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 34 TO 39. HIGHS  
53 TO 58. SOUTHWEST WINDS 5 TO 10 MPH.    
SUNDAY
 
MOSTLY CLOUDY. SCATTERED SHOWERS. LOWS 36 TO 41. HIGHS  
59 TO 64. SOUTHWEST WINDS 5 TO 15 MPH.    
MONDAY
 
MOSTLY CLOUDY. SCATTERED SHOWERS. LOWS 38 TO 43. HIGHS  
57 TO 62.    
TUESDAY
 
MOSTLY CLOUDY. SCATTERED SHOWERS. HIGHS 55 TO 60.  
 

 
 
MTZ131-262230-  
NORTHERN CHEYENNE INDIAN RESERVATION/ASHLAND RANGER DISTRICT  
CUSTER NATL FOREST-  
426 AM MDT WED APR 26 2017  
   
TODAY
 
 
* SKY/WEATHER...........PARTLY SUNNY. PATCHY FOG IN THE MORNING.  
* MAX TEMPERATURE.......47-52.  
* 24 HR TREND.........16 DEGREES WARMER.  
* MIN HUMIDITY..........54-59 PERCENT.  
* 24 HR TREND.........36 PERCENT DRIER.  
* WIND (20 FT)  
* SLOPE/VALLEY.........SOUTHEAST WINDS 5 TO 10 MPH.  
* RIDGETOP.............NORTHWEST 5 TO 15 MPH.  
* LAL...................1...NO THUNDERSTORMS.  
* CWR...................ZERO.  
* HAINES INDEX..........3.  
   
TONIGHT
 
 
* SKY/WEATHER...........MOSTLY CLOUDY. ISOLATED SNOW SHOWERS  
OVERNIGHT.  
* MIN TEMPERATURE.......28-33.  
* 24 HR TREND.........5 DEGREES WARMER.  
* MAX HUMIDITY..........94-99 PERCENT.  
* 24 HR TREND.........3 PERCENT DRIER.  
* WIND (20 FT)  
* SLOPE/VALLEY.........SOUTHEAST WINDS 5 TO 10 MPH.  
* RIDGETOP.............SOUTH 5 TO 15 MPH.  
* LAL...................1...NO THUNDERSTORMS.  
* CWR...................ZERO.  
   
THURSDAY
 
 
* SKY/WEATHER...........SCATTERED RAIN AND SNOW SHOWERS.  
* MAX TEMPERATURE.......45-50.  
* 24 HR TREND.........2 DEGREES COOLER.  
* MIN HUMIDITY..........65-70 PERCENT.  
* 24 HR TREND.........11 PERCENT WETTER.  
* WIND (20 FT)  
* SLOPE/VALLEY.........EAST WINDS 5 TO 15 MPH.  
* RIDGETOP.............EAST 5 TO 15 MPH.  
* LAL...................1...NO THUNDERSTORMS.  
* CWR...................30 PERCENT.  
* HAINES INDEX..........2.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
THURSDAY NIGHT
 
CLOUDY. RAIN AND SNOW LIKELY. LOWS 32 TO 37.  
NORTH WINDS 5 TO 15 MPH.    
FRIDAY
 
CLOUDY. NUMEROUS RAIN AND SNOW SHOWERS. LOWS 30 TO 35.  
HIGHS 43 TO 48. NORTHEAST WINDS 5 TO 10 MPH.    
SATURDAY
 
MOSTLY CLOUDY. ISOLATED RAIN AND SNOW SHOWERS. LOWS  
27 TO 32. HIGHS 46 TO 51. SOUTH WINDS 5 TO 10 MPH.    
SUNDAY
 
PARTLY CLOUDY. SCATTERED RAIN AND SNOW SHOWERS. LOWS  
29 TO 37. HIGHS 53 TO 58. SOUTHWEST WINDS 5 TO 10 MPH.    
MONDAY
 
MOSTLY CLOUDY. SCATTERED RAIN AND SNOW SHOWERS. LOWS  
34 TO 39. HIGHS 53 TO 58.    
TUESDAY
 
MOSTLY CLOUDY. SCATTERED SHOWERS. HIGHS 52 TO 57.  
 

 
 
MTZ132-262230-  
CUSTER COUNTY-  
426 AM MDT WED APR 26 2017  
   
TODAY
 
 
* SKY/WEATHER...........PARTLY SUNNY.  
* MAX TEMPERATURE.......46-51.  
* 24 HR TREND.........16 DEGREES WARMER.  
* MIN HUMIDITY..........38-43 PERCENT.  
* 24 HR TREND.........35 PERCENT DRIER.  
* WIND (20 FT)  
* PLAINS...............EAST WINDS 5 TO 10 MPH.  
* LAL...................1...NO THUNDERSTORMS.  
* CWR...................ZERO.  
* HAINES INDEX..........3.  
   
TONIGHT
 
 
* SKY/WEATHER...........PARTLY CLOUDY.  
* MIN TEMPERATURE.......26-31.  
* 24 HR TREND.........4 DEGREES WARMER.  
* MAX HUMIDITY..........84-89 PERCENT.  
* 24 HR TREND.........9 PERCENT DRIER.  
* WIND (20 FT)  
* PLAINS...............SOUTHEAST WINDS 5 TO 15 MPH.  
* LAL...................1...NO THUNDERSTORMS.  
* CWR...................ZERO.  
   
THURSDAY
 
 
* SKY/WEATHER...........PARTLY SUNNY.  
* MAX TEMPERATURE.......48-53.  
* 24 HR TREND.........2 DEGREES WARMER.  
* MIN HUMIDITY..........37-42 PERCENT.  
* 24 HR TREND.........1 PERCENT DRIER.  
* WIND (20 FT)  
* PLAINS...............EAST WINDS 10 TO 20 MPH.  
* LAL...................1...NO THUNDERSTORMS.  
* CWR...................ZERO.  
* HAINES INDEX..........2.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
THURSDAY NIGHT
 
MOSTLY CLOUDY. SCATTERED SNOW SHOWERS WITH  
ISOLATED RAIN SHOWERS. LOWS 30 TO 35. EAST WINDS 5 TO 15 MPH.    
FRIDAY
 
MOSTLY CLOUDY. SCATTERED RAIN AND SNOW SHOWERS. LOWS  
31 TO 36. HIGHS 46 TO 51. EAST WINDS 5 TO 10 MPH.    
SATURDAY
 
MOSTLY CLOUDY. ISOLATED RAIN AND SNOW SHOWERS. LOWS  
32 TO 37. HIGHS 49 TO 54. SOUTHWEST WINDS 5 TO 10 MPH.    
SUNDAY
 
PARTLY CLOUDY. SCATTERED SHOWERS. LOWS 34 TO 39. HIGHS  
54 TO 59. SOUTHWEST WINDS 5 TO 15 MPH.    
MONDAY
 
MOSTLY CLOUDY. SCATTERED SHOWERS. LOWS 37 TO 42. HIGHS  
53 TO 58.    
TUESDAY
 
MOSTLY CLOUDY. SCATTERED SHOWERS. HIGHS 51 TO 56.  
 

 
 
MTZ133-262230-  
SIOUX RANGER DISTRICT CUSTER NATIONAL FOREST-  
426 AM MDT WED APR 26 2017  
   
TODAY
 
 
* SKY/WEATHER...........MOSTLY SUNNY.  
* MAX TEMPERATURE.......45-50.  
* 24 HR TREND.........18 DEGREES WARMER.  
* MIN HUMIDITY..........44-49 PERCENT.  
* 24 HR TREND.........39 PERCENT DRIER.  
* WIND (20 FT)  
* PLAINS...............NORTHEAST WINDS 5 TO 10 MPH.  
* LAL...................1...NO THUNDERSTORMS.  
* CWR...................ZERO.  
* HAINES INDEX..........3.  
   
TONIGHT
 
 
* SKY/WEATHER...........PARTLY CLOUDY.  
* MIN TEMPERATURE.......24-29.  
* 24 HR TREND.........2 DEGREES WARMER.  
* MAX HUMIDITY..........94-99 PERCENT.  
* 24 HR TREND.........UNCHANGED.  
* WIND (20 FT)  
* PLAINS...............EAST WINDS 5 TO 15 MPH.  
* LAL...................1...NO THUNDERSTORMS.  
* CWR...................ZERO.  
   
THURSDAY
 
 
* SKY/WEATHER...........PARTLY SUNNY.  
* MAX TEMPERATURE.......48-53.  
* 24 HR TREND.........3 DEGREES WARMER.  
* MIN HUMIDITY..........42-47 PERCENT.  
* 24 HR TREND.........2 PERCENT DRIER.  
* WIND (20 FT)  
* PLAINS...............EAST WINDS 5 TO 15 MPH.  
* LAL...................1...NO THUNDERSTORMS.  
* CWR...................ZERO.  
* HAINES INDEX..........2.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
THURSDAY NIGHT
 
MOSTLY CLOUDY. LOWS 29 TO 34. EAST WINDS 5 TO  
15 MPH.    
FRIDAY
 
MOSTLY CLOUDY. ISOLATED RAIN AND SNOW SHOWERS. LOWS  
29 TO 34. HIGHS 47 TO 52. EAST WINDS 5 TO 10 MPH.    
SATURDAY
 
MOSTLY CLOUDY. LOWS 29 TO 34. HIGHS 50 TO 55.  
SOUTHWEST WINDS 5 TO 10 MPH.    
SUNDAY
 
PARTLY CLOUDY. SCATTERED SHOWERS. LOWS 32 TO 38. HIGHS  
55 TO 60. WEST WINDS 5 TO 15 MPH.    
MONDAY
 
MOSTLY CLOUDY. SCATTERED SHOWERS. LOWS 35 TO 40. HIGHS  
56 TO 61.    
TUESDAY
 
MOSTLY CLOUDY. SCATTERED SHOWERS. HIGHS 53 TO 58.  
 

 
 
WYZ274-262230-  
SHERIDAN COUNTY-  
426 AM MDT WED APR 26 2017  
   
TODAY
 
 
* SKY/WEATHER...........MOSTLY CLOUDY. PATCHY FOG IN THE MORNING.  
ISOLATED RAIN SHOWERS IN THE AFTERNOON.  
* MAX TEMPERATURE.......47-52.  
* 24 HR TREND.........13 DEGREES WARMER.  
* MIN HUMIDITY..........63-68 PERCENT.  
* 24 HR TREND.........17 PERCENT DRIER.  
* WIND (20 FT)  
* SLOPE/VALLEY.........LIGHT AND VARIABLE WINDS IN THE  
MORNING...BECOMING SOUTHEAST 5 TO 10 MPH IN THE AFTERNOON.  
* RIDGETOP.............NORTHWEST 5 TO 10 MPH.  
* LAL...................1...NO THUNDERSTORMS.  
* CWR...................LESS THAN 10 PERCENT.  
* HAINES INDEX..........3.  
   
TONIGHT
 
 
* SKY/WEATHER...........MOSTLY CLOUDY. ISOLATED RAIN AND SNOW  
SHOWERS IN THE EVENING...THEN SCATTERED SNOW SHOWERS OVERNIGHT.  
* MIN TEMPERATURE.......30-35.  
* 24 HR TREND.........12 DEGREES WARMER.  
* MAX HUMIDITY..........90-95 PERCENT.  
* 24 HR TREND.........6 PERCENT DRIER.  
* WIND (20 FT)  
* SLOPE/VALLEY.........SOUTH WINDS 5 TO 10 MPH.  
* RIDGETOP.............SOUTH 5 TO 10 MPH.  
* LAL...................1...NO THUNDERSTORMS.  
* CWR...................LESS THAN 10 PERCENT.  
   
THURSDAY
 
 
* SKY/WEATHER...........CLOUDY. RAIN AND SNOW LIKELY IN THE  
MORNING...THEN RAIN IN THE AFTERNOON.  
* MAX TEMPERATURE.......41-46.  
* 24 HR TREND.........6 DEGREES COOLER.  
* MIN HUMIDITY..........79-84 PERCENT.  
* 24 HR TREND.........16 PERCENT WETTER.  
* WIND (20 FT)  
* SLOPE/VALLEY.........NORTHWEST WINDS 10 TO 20 MPH. GUSTS UP TO 30  
MPH IN THE AFTERNOON.  
* RIDGETOP.............NORTH 5 TO 15 MPH.  
* LAL...................1...NO THUNDERSTORMS.  
* CWR...................70 PERCENT.  
* HAINES INDEX..........2.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
THURSDAY NIGHT
 
CLOUDY. SNOW AND RAIN. LOWS 29 TO 34. NORTHWEST  
WINDS 10 TO 20 MPH.    
FRIDAY
 
CLOUDY. NUMEROUS SNOW AND RAIN SHOWERS. LOWS 28 TO 33.  
HIGHS 40 TO 45. NORTHWEST WINDS 5 TO 15 MPH.    
SATURDAY
 
MOSTLY CLOUDY. ISOLATED RAIN AND SNOW SHOWERS. LOWS  
27 TO 32. HIGHS 43 TO 48. SOUTHEAST WINDS 5 TO 10 MPH.    
SUNDAY
 
MOSTLY CLOUDY. SCATTERED RAIN AND SNOW SHOWERS. LOWS  
28 TO 36. HIGHS 52 TO 57. WEST WINDS 5 TO 15 MPH.    
MONDAY
 
MOSTLY CLOUDY. SCATTERED RAIN AND SNOW SHOWERS. LOWS  
34 TO 39. HIGHS 52 TO 57.    
TUESDAY
 
MOSTLY CLOUDY. SCATTERED SHOWERS. HIGHS 50 TO 55.  
 

 
 
WYZ284-262230-  
BIGHORN NATIONAL FOREST-  
426 AM MDT WED APR 26 2017  
   
TODAY
 
 
* SKY/WEATHER...........MOSTLY CLOUDY WITH SCATTERED RAIN AND SNOW  
SHOWERS.  
* MAX TEMPERATURE.......36-41.  
* 24 HR TREND.........2 DEGREES WARMER.  
* MIN HUMIDITY..........64-69 PERCENT.  
* 24 HR TREND.........12 PERCENT DRIER.  
* WIND (20 FT)  
* AT BURGESS JCT.......SOUTHWEST WINDS 5 TO 10 MPH.  
* LAL...................1...NO THUNDERSTORMS.  
* CWR...................20 PERCENT.  
* HAINES INDEX..........3.  
   
TONIGHT
 
 
* SKY/WEATHER...........MOSTLY CLOUDY. SCATTERED SNOW SHOWERS IN  
THE EVENING...THEN NUMEROUS SNOW SHOWERS OVERNIGHT.  
* MIN TEMPERATURE.......21-26.  
* 24 HR TREND.........5 DEGREES WARMER.  
* MAX HUMIDITY..........92-97 PERCENT.  
* 24 HR TREND.........6 PERCENT DRIER.  
* WIND (20 FT)  
* AT BURGESS JCT.......SOUTHWEST WINDS 5 TO 15 MPH.  
* LAL...................1...NO THUNDERSTORMS.  
* CWR...................30 PERCENT.  
   
THURSDAY
 
 
* SKY/WEATHER...........CLOUDY WITH SNOW.  
* MAX TEMPERATURE.......29-34.  
* 24 HR TREND.........7 DEGREES COOLER.  
* MIN HUMIDITY..........80-85 PERCENT.  
* 24 HR TREND.........16 PERCENT WETTER.  
* WIND (20 FT)  
* AT BURGESS JCT.......NORTH WINDS 10 TO 20 MPH.  
* LAL...................1...NO THUNDERSTORMS.  
* CWR...................90 PERCENT.  
* HAINES INDEX..........2.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
THURSDAY NIGHT
 
CLOUDY, SNOW. LOWS 17 TO 22. NORTH WINDS 10 TO  
20 MPH.    
FRIDAY
 
CLOUDY. SNOW SHOWERS. LOWS 16 TO 21. HIGHS 28 TO 33.  
NORTH WINDS 5 TO 10 MPH.    
SATURDAY
 
MOSTLY CLOUDY. SCATTERED SNOW SHOWERS. LOWS 14 TO 19.  
HIGHS 31 TO 36. WEST WINDS 5 TO 10 MPH.    
SUNDAY
 
MOSTLY CLOUDY. SCATTERED SNOW SHOWERS. LOWS 16 TO 23.  
HIGHS 38 TO 43. WEST WINDS 5 TO 15 MPH.    
MONDAY
 
MOSTLY CLOUDY. SCATTERED SNOW AND RAIN SHOWERS. LOWS  
21 TO 26. HIGHS 36 TO 41.    
TUESDAY
 
MOSTLY CLOUDY. SCATTERED SNOW AND RAIN SHOWERS. HIGHS  
34 TO 39.  
 

 
 
WEATHER.GOV/BILLINGS  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab MT Page
The Nexlab WY Page Main Text Page