203  
FNUS55 KGGW 212059  
FWFGGW  
 
FIRE WEATHER PLANNING FORECAST FOR NORTHEAST MONTANA  
NATIONAL WEATHER SERVICE GLASGOW MT  
259 PM MDT SAT JUL 21 2018  
   
DISCUSSION
 
 
STRONG TO SEVERE THUNDERSTORMS REMAIN POSSIBLE THIS AFTERNOON AND  
EVENING GENERALLY NEAR AND EAST OF HIGHWAY 13. THE FRONTAL SYSTEM  
WHICH IS TRIGGERING THESE STORMS WILL BRING IN WARM, MOIST AIR  
FROM THE SOUTHEAST AHEAD OF THE STORMS AND COOLER, DRIER AIR FROM  
THE NORTHWEST BEHIND THE FRONT. SUNDAY, EXPECT WIDESPREAD GUSTY  
WINDS FROM THE NORTHWEST AND CLEARING SKIES. THE REMAINDER OF THE  
WEEK WILL FOLLOW A COOLER AND LESS ACTIVE WEATHER PATTERN.  
 
MTZ134-221030-  
NORTHERN VALLEY AND NORTHERN PHILLIPS COUNTIES-  
259 PM MDT SAT JUL 21 2018  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT) THEN BECOMING  
MOSTLY CLOUDY (50-60 PERCENT). ISOLATED SHOWERS  
IN THE EVENING, THEN ISOLATED SHOWERS AND  
THUNDERSTORMS AFTER MIDNIGHT.  
MIN TEMPERATURE.....56-61.  
MAX HUMIDITY........74-79 PERCENT.  
20-FOOT WINDS.......NORTHWEST WINDS 5 TO 15 MPH BECOMING NORTHEAST  
LATE IN THE EVENING, THEN BECOMING NORTH 10 TO  
15 MPH AFTER MIDNIGHT BECOMING NORTHWEST 10 TO  
20 MPH LATE IN THE NIGHT.  
LAL.................1 UNTIL 2400, THEN 2.  
CWR (> 0.10 INCH)...10 PERCENT.  
   
SUNDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT) THEN BECOMING  
SUNNY (5-15 PERCENT).  
MAX TEMPERATURE.....77-82.  
MIN HUMIDITY........26-31 PERCENT.  
20-FOOT WINDS.......NORTHWEST WINDS 15 TO 25 MPH.  
HAINES INDEX........5 MODERATE.  
LAL.................1.  
CWR (> 0.10 INCH)...ZERO.  
   
SUNDAY NIGHT
 
 
SKY/WEATHER.........CLEAR (0-10 PERCENT).  
MIN TEMPERATURE.....49-54.  
MAX HUMIDITY........78-83 PERCENT.  
20-FOOT WINDS.......NORTHWEST WINDS 10 TO 20 MPH DECREASING TO 5 TO  
10 MPH AND GUSTY IN THE LATE EVENING AND  
OVERNIGHT.  
LAL.................1.  
CWR (> 0.10 INCH)...ZERO.  
   
MONDAY
 
 
SKY/WEATHER.........SUNNY (15-25 PERCENT).  
MAX TEMPERATURE.....80-85.  
MIN HUMIDITY........24-29 PERCENT.  
20-FOOT WINDS.......NORTHEAST WINDS 5 TO 10 MPH BECOMING SOUTH IN  
THE LATE MORNING AND AFTERNOON.  
HAINES INDEX........6 HIGH.  
LAL.................1.  
CWR (> 0.10 INCH)...ZERO.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
TUESDAY
 
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS IN THE UPPER 70S. NORTH  
WINDS 5 TO 15 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS. LOWS IN  
THE LOWER 50S. HIGHS IN THE MID 70S. NORTH WINDS 5 TO 15 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS IN THE  
UPPER 70S. NORTHEAST WINDS 5 TO 15 MPH.    
FRIDAY
 
PARTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE LOWER  
80S.    
SATURDAY
 
PARTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE MID  
80S.  
 

 
 
MTZ135-221030-  
THE LITTLE ROCKIES-  
259 PM MDT SAT JUL 21 2018  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT). SCATTERED  
SHOWERS IN THE EVENING, THEN ISOLATED SHOWERS  
AND THUNDERSTORMS AFTER MIDNIGHT.  
MIN TEMPERATURE.....61-66 VALLEYS AND 55-60 RIDGES.  
MAX HUMIDITY........54-59 PERCENT.  
20-FOOT WINDS.......  
LOWER ELEVATION......NORTHWEST WINDS 10 TO 15 MPH EARLY IN THE  
EVENING BECOMING DOWNSLOPE/DOWNVALLEY 5-10  
MPH, THEN BECOMING NORTHWEST 5 TO 15 MPH  
AFTER MIDNIGHT.  
RIDGE............NORTHWEST WINDS 5 TO 10 MPH BECOMING SOUTHWEST  
UP TO 5 MPH LATE IN THE EVENING, THEN  
INCREASING TO NORTHWEST 10 TO 20 MPH AFTER  
MIDNIGHT.  
LAL.................1 UNTIL 2400, THEN 2.  
CWR (> 0.10 INCH)...20 PERCENT.  
   
SUNDAY
 
 
SKY/WEATHER.........SUNNY (0-10 PERCENT).  
MAX TEMPERATURE.....80-85 VALLEYS AND 70-75 RIDGES.  
MIN HUMIDITY........19-24 PERCENT VALLEYS AND 30-35 PERCENT RIDGES.  
20-FOOT WINDS.......  
LOWER ELEVATION......NORTHWEST WINDS 10 TO 20 MPH.  
RIDGE............NORTHWEST WINDS 10 TO 20 MPH.  
HAINES INDEX........5 MODERATE.  
LAL.................1.  
CWR (> 0.10 INCH)...ZERO.  
   
SUNDAY NIGHT
 
 
SKY/WEATHER.........CLEAR (0-5 PERCENT).  
MIN TEMPERATURE.....55-60 VALLEYS AND 48-53 RIDGES.  
MAX HUMIDITY........64-69 PERCENT.  
20-FOOT WINDS.......  
LOWER ELEVATION......NORTH WINDS 5 TO 10 MPH UNTIL EARLY  
MORNING BECOMING DOWNSLOPE/DOWNVALLEY 2-5  
MPH.  
RIDGE............NORTH WINDS 5 TO 15 MPH BECOMING NORTHEAST UP  
TO 5 MPH EARLY IN THE MORNING.  
LAL.................1.  
CWR (> 0.10 INCH)...ZERO.  
   
MONDAY
 
 
SKY/WEATHER.........SUNNY (5-15 PERCENT).  
MAX TEMPERATURE.....85-90 VALLEYS AND 75-80 RIDGES.  
MIN HUMIDITY........24-29 PERCENT.  
20-FOOT WINDS.......  
LOWER ELEVATION......UPSLOPE/UPVALLEY 2-5 MPH BECOMING  
UPSLOPE/UPVALLEY 4-8 MPH LATE IN THE  
AFTERNOON.  
RIDGE............SOUTH WINDS 5 TO 10 MPH.  
HAINES INDEX........6 HIGH.  
LAL.................1.  
CWR (> 0.10 INCH)...ZERO.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
TUESDAY
 
MOSTLY CLEAR. LOWS IN THE MID 50S. HIGHS IN THE UPPER  
70S. NORTH WINDS 5 TO 10 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS IN THE MID 70S. NORTH  
WINDS 5 TO 10 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE MID  
70S. NORTHEAST WINDS 5 TO 10 MPH.    
FRIDAY
 
PARTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE UPPER  
70S.    
SATURDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 50S. HIGHS IN THE  
LOWER 80S.  
 

 
 
MTZ136-221030-  
THE LOWER MISSOURI RIVER BREAKS INCLUDING THE CHARLES M RUSSELL  
NATIONAL WILDLIFE REFUGE-  
259 PM MDT SAT JUL 21 2018  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT) THEN BECOMING  
MOSTLY CLOUDY (45-55 PERCENT). ISOLATED SHOWERS  
IN THE EVENING.  
MIN TEMPERATURE.....61-66.  
MAX HUMIDITY........61-66 PERCENT.  
20-FOOT WINDS.......  
LOWER ELEVATION......NORTHWEST WINDS 10 TO 20 MPH.  
RIDGE............NORTHWEST WINDS 10 TO 20 MPH.  
LAL.................1.  
CWR (> 0.10 INCH)...LESS THAN 10 PERCENT.  
   
SUNDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT) THEN BECOMING  
SUNNY (0-5 PERCENT).  
MAX TEMPERATURE.....79-84.  
MIN HUMIDITY........22-27 PERCENT.  
20-FOOT WINDS.......  
LOWER ELEVATION......NORTHWEST WINDS 15 TO 25 MPH.  
RIDGE............NORTHWEST WINDS 15 TO 25 MPH.  
HAINES INDEX........6 HIGH.  
LAL.................1.  
CWR (> 0.10 INCH)...ZERO.  
   
SUNDAY NIGHT
 
 
SKY/WEATHER.........CLEAR (0-5 PERCENT).  
MIN TEMPERATURE.....52-57.  
MAX HUMIDITY........70-75 PERCENT.  
20-FOOT WINDS.......  
LOWER ELEVATION......NORTHWEST WINDS 10 TO 20 MPH BECOMING  
NORTH 5 TO 10 MPH IN THE LATE EVENING AND  
EARLY MORNING, THEN BECOMING  
DOWNSLOPE/DOWNVALLEY 5-10 MPH EARLY IN THE  
MORNING.  
RIDGE............NORTHWEST WINDS 10 TO 20 MPH BECOMING NORTH 5  
TO 10 MPH IN THE LATE EVENING AND EARLY  
MORNING, THEN BECOMING NORTHEAST UP TO 5 MPH  
EARLY IN THE MORNING.  
LAL.................1.  
CWR (> 0.10 INCH)...ZERO.  
   
MONDAY
 
 
SKY/WEATHER.........SUNNY (5-15 PERCENT).  
MAX TEMPERATURE.....83-88.  
MIN HUMIDITY........20-25 PERCENT.  
20-FOOT WINDS.......  
LOWER ELEVATION......UPSLOPE/UPVALLEY 2-5 MPH.  
RIDGE............SOUTHEAST WINDS 5 TO 10 MPH.  
HAINES INDEX........6 HIGH.  
LAL.................1.  
CWR (> 0.10 INCH)...ZERO.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
TUESDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 50S. HIGHS AROUND 80.  
NORTHEAST WINDS 5 TO 15 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS. LOWS IN  
THE MID 50S. HIGHS IN THE UPPER 70S. NORTH WINDS 5 TO 15 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE  
UPPER 70S. NORTHEAST WINDS 5 TO 10 MPH.    
FRIDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 50S. HIGHS IN THE  
LOWER 80S.    
SATURDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 50S. HIGHS IN THE  
MID 80S.  
 

 
 
MTZ137-221030-  
SOUTHERN PETROLEUM AND SOUTHERN GARFIELD COUNTIES-  
259 PM MDT SAT JUL 21 2018  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT). ISOLATED  
SHOWERS.  
MIN TEMPERATURE.....60-65.  
MAX HUMIDITY........63-68 PERCENT.  
20-FOOT WINDS.......  
LOWER ELEVATION......NORTHEAST WINDS 10 TO 20 MPH BECOMING  
SOUTHWEST 5 TO 15 MPH AFTER MIDNIGHT, THEN  
BECOMING NORTHWEST 10 TO 20 MPH LATE IN  
THE NIGHT.  
RIDGE............NORTHEAST WINDS 5 TO 15 MPH INCREASING TO  
NORTHWEST 15 TO 25 MPH AFTER MIDNIGHT.  
LAL.................1.  
CWR (> 0.10 INCH)...10 PERCENT.  
   
SUNDAY
 
 
SKY/WEATHER.........SUNNY (20-30 PERCENT).  
MAX TEMPERATURE.....79-84.  
MIN HUMIDITY........22-27 PERCENT.  
20-FOOT WINDS.......  
LOWER ELEVATION......NORTHWEST WINDS 15 TO 25 MPH.  
RIDGE............NORTHWEST WINDS 15 TO 25 MPH.  
HAINES INDEX........6 HIGH.  
LAL.................1.  
CWR (> 0.10 INCH)...ZERO.  
   
SUNDAY NIGHT
 
 
SKY/WEATHER.........CLEAR (0-5 PERCENT).  
MIN TEMPERATURE.....52-57.  
MAX HUMIDITY........71-76 PERCENT.  
20-FOOT WINDS.......  
LOWER ELEVATION......NORTHWEST WINDS 10 TO 20 MPH BECOMING  
NORTH 5 TO 10 MPH IN THE LATE EVENING.  
RIDGE............NORTHWEST WINDS 10 TO 20 MPH BECOMING NORTH 5  
TO 10 MPH IN THE LATE EVENING.  
LAL.................1.  
CWR (> 0.10 INCH)...ZERO.  
   
MONDAY
 
 
SKY/WEATHER.........SUNNY (0-10 PERCENT).  
MAX TEMPERATURE.....83-88.  
MIN HUMIDITY........21-26 PERCENT.  
20-FOOT WINDS.......  
LOWER ELEVATION......UPSLOPE/UPVALLEY 2-5 MPH.  
RIDGE............SOUTHEAST WINDS 5 TO 10 MPH.  
HAINES INDEX........6 HIGH.  
LAL.................1.  
CWR (> 0.10 INCH)...ZERO.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
TUESDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 50S. HIGHS IN THE  
LOWER 80S. NORTHEAST WINDS 5 TO 15 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE  
UPPER 70S. NORTHEAST WINDS 5 TO 15 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS IN THE MID 50S. HIGHS AROUND 80.  
NORTHEAST WINDS 5 TO 10 MPH.    
FRIDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 50S. HIGHS IN THE  
LOWER 80S.    
SATURDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 50S. HIGHS IN THE  
MID 80S.  
 

 
 
MTZ120-221030-  
FORT PECK RESERVATION AND DANIELS/ROOSEVELT/SHERIDAN COUNTIES-  
259 PM MDT SAT JUL 21 2018  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY (50-60 PERCENT). SCATTERED  
SHOWERS AND THUNDERSTORMS. SOME THUNDERSTORMS  
MAY BE SEVERE IN THE EVENING.  
MIN TEMPERATURE.....59-64.  
MAX HUMIDITY........89-94 PERCENT.  
20-FOOT WINDS.......EAST WINDS 40 TO 50 MPH BECOMING SOUTHEAST 10  
TO 20 MPH WITH GUSTS TO AROUND 35 MPH IN THE  
LATE EVENING.  
LAL.................4 UNTIL 2400, THEN 3.  
CWR (> 0.10 INCH)...40 PERCENT.  
   
SUNDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT) THEN BECOMING  
SUNNY (5-15 PERCENT). SCATTERED SHOWERS AND  
ISOLATED THUNDERSTORMS IN THE MORNING.  
MAX TEMPERATURE.....77-82.  
MIN HUMIDITY........32-37 PERCENT.  
20-FOOT WINDS.......NORTHWEST WINDS 15 TO 25 MPH.  
HAINES INDEX........4 LOW.  
LAL.................3 UNTIL 1200, THEN 1.  
CWR (> 0.10 INCH)...10 PERCENT.  
   
SUNDAY NIGHT
 
 
SKY/WEATHER.........CLEAR (0-10 PERCENT).  
MIN TEMPERATURE.....49-54.  
MAX HUMIDITY........83-88 PERCENT.  
20-FOOT WINDS.......NORTHWEST WINDS 5 TO 15 MPH.  
LAL.................1.  
CWR (> 0.10 INCH)...ZERO.  
   
MONDAY
 
 
SKY/WEATHER.........SUNNY (15-25 PERCENT).  
MAX TEMPERATURE.....77-82.  
MIN HUMIDITY........29-34 PERCENT.  
20-FOOT WINDS.......WEST WINDS 5 TO 10 MPH.  
HAINES INDEX........6 HIGH.  
LAL.................1.  
CWR (> 0.10 INCH)...ZERO.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
TUESDAY
 
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS IN THE MID 70S. NORTH  
WINDS 5 TO 15 MPH.    
WEDNESDAY
 
MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE  
LOWER 70S. NORTHWEST WINDS 5 TO 15 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS AROUND 50. HIGHS IN THE MID 70S.  
NORTH WINDS 5 TO 15 MPH.    
FRIDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS IN THE  
UPPER 70S.    
SATURDAY
 
PARTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE  
LOWER 80S.  
 

 
 
MTZ122-221030-  
DAWSON/MCCONE/PRAIRIE/RICHLAND/WIBAUX COUNTIES-  
259 PM MDT SAT JUL 21 2018  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT). SCATTERED  
THUNDERSTORMS AND ISOLATED SHOWERS IN THE  
EVENING, THEN ISOLATED SHOWERS AND  
THUNDERSTORMS AFTER MIDNIGHT. SOME  
THUNDERSTORMS MAY BE SEVERE. SOME THUNDERSTORMS  
MAY BE SEVERE.  
MIN TEMPERATURE.....62-67.  
MAX HUMIDITY........86-91 PERCENT.  
20-FOOT WINDS.......SOUTHWEST WINDS 25 TO 35 MPH BECOMING SOUTH 10  
TO 20 MPH IN THE LATE EVENING.  
LAL.................4 UNTIL 2400, THEN 3.  
CWR (> 0.10 INCH)...10 PERCENT.  
   
SUNDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT) THEN BECOMING  
SUNNY (0-10 PERCENT). ISOLATED SHOWERS AND  
THUNDERSTORMS IN THE MORNING.  
MAX TEMPERATURE.....79-84.  
MIN HUMIDITY........26-31 PERCENT.  
20-FOOT WINDS.......NORTHWEST WINDS 20 TO 30 MPH DECREASING TO 10  
TO 20 MPH LATE IN THE AFTERNOON.  
HAINES INDEX........5 MODERATE.  
LAL.................3 UNTIL 1200, THEN 1.  
CWR (> 0.10 INCH)...10 PERCENT.  
   
SUNDAY NIGHT
 
 
SKY/WEATHER.........CLEAR (0-5 PERCENT).  
MIN TEMPERATURE.....51-56.  
MAX HUMIDITY........77-82 PERCENT.  
20-FOOT WINDS.......NORTHWEST WINDS 10 TO 20 MPH DECREASING TO 5 TO  
10 MPH AND GUSTY IN THE LATE EVENING AND  
OVERNIGHT.  
LAL.................1.  
CWR (> 0.10 INCH)...ZERO.  
   
MONDAY
 
 
SKY/WEATHER.........SUNNY (0-10 PERCENT).  
MAX TEMPERATURE.....80-85.  
MIN HUMIDITY........25-30 PERCENT.  
20-FOOT WINDS.......NORTH WINDS UP TO 5 MPH BECOMING NORTHEAST LATE  
IN THE AFTERNOON.  
HAINES INDEX........6 HIGH.  
LAL.................1.  
CWR (> 0.10 INCH)...ZERO.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
TUESDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 50S. HIGHS AROUND 80.  
NORTHEAST WINDS 5 TO 15 MPH.    
WEDNESDAY
 
MOSTLY CLEAR. LOWS IN THE MID 50S. HIGHS IN THE MID  
70S. NORTH WINDS 5 TO 15 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS IN THE  
UPPER 70S. NORTH WINDS 5 TO 15 MPH.    
FRIDAY
 
PARTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE UPPER  
70S.    
SATURDAY
 
PARTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE  
LOWER 80S.  
 

 
 
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