288  
FNUS55 KBOI 202059  
FWFBOI  
 
FIRE WEATHER PLANNING FORECAST FOR SW IDAHO AND SE OREGON  
NATIONAL WEATHER SERVICE BOISE ID  
259 PM MDT SUN SEP 20 2020  
   
..WARMING AND DRYING TREND TO CONTINUE MONDAY
 
   
..BREEZY CONDITIONS DEVELOPING MIDWEEK
 
 
   
DISCUSSION
 
 
A WARMING AND DRYING TREND WILL CONTINUE MONDAY AS THE FLOW ALOFT TURNS  
SOUTHWEST AND INCREASES. A WEAK UPPER LEVEL TROUGH WILL PASS OVER THE  
AREA ON TUESDAY AND BRING BREEZY SOUTHWEST WINDS, ESPECIALLY NEAR  
THE NEVADA BORDER. BREEZY CONDITIONS CAN BE EXPECT WEDNESDAY AND THURSDAY  
AHEAD OF A PACIFIC TROUGH. THE TROUGH WILL MOVE ACROSS THE REGION LATE IN  
THE WEEK AND BRING A CHANCE OF PRECIPITATION. THE BEST CHANCE OF  
PRECIPITATION WILL BE ACROSS NORTHERN AREAS, WHILE AREAS NEAR THE NEVADA  
BORDER WILL HAVE LITTLE CHANCE OF PRECIPITATION. TEMPERATURES WILL BE  
NORMAL TO A LITTLE ABOVE NORMAL THROUGH THURSDAY, THEN TREND DOWN THE END  
OF THE WEEK.  
 
IDZ401-402-211530-  
WESTERN PAYETTE NATIONAL FOREST-EASTERN PAYETTE NATIONAL FOREST-  
259 PM MDT SUN SEP 20 2020  
   
TONIGHT
 
 
SKY/WEATHER.........CLEAR IN THE EVENING, THEN BECOMING PARTLY  
CLOUDY AFTER MIDNIGHT.  
MIN TEMPERATURE.....38 TO 51.  
24 HR TREND......ON AVERAGE, UNCHANGED.  
MAX HUMIDITY........49 TO 74 PERCENT.  
24 HR TREND......ON AVERAGE, 23 PERCENT DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...LIGHT DOWNSLOPE WINDS LESS THAN 8 MPH.  
RIDGES/UPR SLOPES....SOUTHWEST AROUND 8 MPH IN THE EVENING,  
BECOMING LIGHT AFTER MIDNIGHT.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......300-400 FT AGL.  
TRANSPORT WINDS....SOUTH 5 TO 10 MPH.  
   
MONDAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....62 TO 75.  
24 HR TREND......ON AVERAGE, 10 DEGREES WARMER.  
MIN HUMIDITY........22 TO 31 PERCENT.  
24 HR TREND......ON AVERAGE, 25 PERCENT DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...LIGHT UPSLOPE WINDS LESS THAN 8 MPH IN THE  
MORNING, BECOMING SOUTH 8 TO 9 MPH IN THE  
AFTERNOON.  
RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 8 MPH IN THE  
MORNING, BECOMING SOUTHWEST 8 TO 10 MPH IN  
THE AFTERNOON.  
HAINES INDEX........4 LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......7000-9000 FT AGL.  
TRANSPORT WINDS....SOUTHWEST 15 TO 20 MPH.  
   
MONDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....41 TO 53.  
24 HR TREND......ON AVERAGE, 2 DEGREES WARMER.  
MAX HUMIDITY........45 TO 65 PERCENT.  
24 HR TREND......ON AVERAGE, 4 PERCENT DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...SOUTH 8 TO 9 MPH IN THE EVENING, BECOMING  
LIGHT DOWNSLOPE LESS THAN 8 MPH AFTER  
MIDNIGHT.  
RIDGES/UPR SLOPES....SOUTHWEST 8 TO 11 MPH WITH GUSTS TO 18 MPH  
IN THE EVENING, BECOMING LIGHT AFTER  
MIDNIGHT.  
HAINES INDEX........4 LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......400 FT AGL.  
TRANSPORT WINDS....NORTHEAST 5 TO 10 MPH.  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....60 TO 73.  
24 HR TREND......ON AVERAGE, UNCHANGED.  
MIN HUMIDITY........27 TO 37 PERCENT.  
24 HR TREND......ON AVERAGE, 6 PERCENT WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...LIGHT UPSLOPE WINDS LESS THAN 8 MPH IN THE  
MORNING, BECOMING SOUTHWEST 8 TO 9 MPH IN  
THE AFTERNOON.  
RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 8 MPH IN THE  
MORNING, BECOMING SOUTHWEST 8 TO 10 MPH IN  
THE AFTERNOON.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......7500-9500 FT AGL.  
TRANSPORT WINDS....SOUTHWEST 15 TO 25 MPH.  
 

 
=  
 
IDZ403-211530-  
NORTHERN BOISE NATIONAL FOREST-  
259 PM MDT SUN SEP 20 2020  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....34 TO 48.  
24 HR TREND......ON AVERAGE, UNCHANGED.  
MAX HUMIDITY........52 TO 77 PERCENT.  
24 HR TREND......ON AVERAGE, 16 PERCENT DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...LIGHT DOWNSLOPE WINDS LESS THAN 8 MPH.  
RIDGES/UPR SLOPES....SOUTHWEST AROUND 8 MPH IN THE EVENING,  
BECOMING LIGHT AFTER MIDNIGHT.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......400 FT AGL.  
TRANSPORT WINDS....SOUTHEAST AROUND 5 MPH.  
   
MONDAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....63 TO 76.  
24 HR TREND......ON AVERAGE, 11 DEGREES WARMER.  
MIN HUMIDITY........19 TO 26 PERCENT.  
24 HR TREND......ON AVERAGE, 25 PERCENT DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...LIGHT UPSLOPE WINDS LESS THAN 8 MPH IN THE  
MORNING, BECOMING SOUTHWEST AROUND 8 MPH  
IN THE AFTERNOON.  
RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 8 MPH IN THE  
MORNING, BECOMING SOUTHWEST 8 TO 9 MPH  
WITH GUSTS TO 16 MPH IN THE AFTERNOON.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......7500-9000 FT AGL.  
TRANSPORT WINDS....SOUTHWEST 15 TO 20 MPH.  
   
MONDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....39 TO 51.  
24 HR TREND......ON AVERAGE, 4 DEGREES WARMER.  
MAX HUMIDITY........41 TO 61 PERCENT.  
24 HR TREND......ON AVERAGE, 14 PERCENT DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...SOUTH AROUND 8 MPH IN THE EVENING,  
BECOMING LIGHT DOWNSLOPE LESS THAN 8 MPH  
AFTER MIDNIGHT.  
RIDGES/UPR SLOPES....SOUTH 8 TO 10 MPH IN THE EVENING, BECOMING  
LIGHT AFTER MIDNIGHT.  
HAINES INDEX........4 LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......400 FT AGL.  
TRANSPORT WINDS....SOUTH AROUND 5 MPH.  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....61 TO 74.  
24 HR TREND......ON AVERAGE, 2 DEGREES COOLER.  
MIN HUMIDITY........24 TO 33 PERCENT.  
24 HR TREND......ON AVERAGE, 6 PERCENT WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...LIGHT UPSLOPE WINDS LESS THAN 8 MPH IN THE  
MORNING, BECOMING SOUTHWEST 8 TO 9 MPH IN  
THE AFTERNOON.  
RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 8 MPH IN THE  
MORNING, BECOMING SOUTHWEST 8 TO 10 MPH IN  
THE AFTERNOON.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......7500-9000 FT AGL.  
TRANSPORT WINDS....SOUTHWEST 15 TO 25 MPH.  
 

 
=  
 
IDZ421-211530-  
SOUTHERN BOISE NATIONAL FOREST/WESTERN SAWTOOTH NATIONAL FOREST-  
259 PM MDT SUN SEP 20 2020  
   
TONIGHT
 
 
SKY/WEATHER.........CLEAR.  
MIN TEMPERATURE.....37 TO 51.  
24 HR TREND......ON AVERAGE, UNCHANGED.  
MAX HUMIDITY........46 TO 71 PERCENT.  
24 HR TREND......ON AVERAGE, 18 PERCENT DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTHWEST AROUND 8 MPH IN THE EVENING,  
BECOMING LIGHT DOWNSLOPE LESS THAN 8 MPH  
AFTER MIDNIGHT.  
RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 8 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......300-400 FT AGL.  
TRANSPORT WINDS....EAST 5 TO 10 MPH.  
   
MONDAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....71 TO 80, EXCEPT 62 TO 70 ABOVE 6500 FEET.  
24 HR TREND......ON AVERAGE, 10 DEGREES WARMER.  
MIN HUMIDITY........15 TO 20 PERCENT, EXCEPT 19 TO 25 PERCENT ABOVE  
6500 FEET.  
24 HR TREND......ON AVERAGE, 19 PERCENT DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...LIGHT UPSLOPE WINDS LESS THAN 8 MPH IN THE  
MORNING, BECOMING SOUTH 8 TO 10 MPH IN THE  
AFTERNOON.  
RIDGES/UPR SLOPES....SOUTHEAST AROUND 10 MPH.  
HAINES INDEX........4 LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......7000-9000 FT AGL.  
TRANSPORT WINDS....SOUTHWEST 15 TO 20 MPH.  
   
MONDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....42 TO 55.  
24 HR TREND......ON AVERAGE, 4 DEGREES WARMER.  
MAX HUMIDITY........37 TO 57 PERCENT.  
24 HR TREND......ON AVERAGE, 11 PERCENT DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...LIGHT DOWNSLOPE WINDS LESS THAN 8 MPH IN  
THE EVENING, BECOMING EAST AROUND 8 MPH  
AFTER MIDNIGHT.  
RIDGES/UPR SLOPES....SOUTHEAST AROUND 8 MPH.  
HAINES INDEX........4 LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......400 FT AGL.  
TRANSPORT WINDS....SOUTHEAST AROUND 5 MPH.  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....69 TO 78, EXCEPT 61 TO 68 ABOVE 6500 FEET.  
24 HR TREND......ON AVERAGE, 2 DEGREES COOLER.  
MIN HUMIDITY........18 TO 28 PERCENT.  
24 HR TREND......ON AVERAGE, 4 PERCENT WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...LIGHT UPSLOPE WINDS LESS THAN 8 MPH IN THE  
MORNING, BECOMING SOUTHWEST 8 TO 11 MPH  
WITH GUSTS TO 18 MPH IN THE AFTERNOON.  
RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 8 MPH IN THE  
MORNING, BECOMING SOUTHWEST 8 TO 11 MPH IN  
THE AFTERNOON.  
HAINES INDEX........4 LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......7000-8500 FT AGL.  
TRANSPORT WINDS....SOUTHWEST 15 TO 25 MPH.  
 

 
=  
 
IDZ400-211530-  
NORTHERN BOISE BLM-  
259 PM MDT SUN SEP 20 2020  
   
TONIGHT
 
 
SKY/WEATHER.........CLEAR IN THE EVENING, THEN BECOMING PARTLY  
CLOUDY AFTER MIDNIGHT.  
MIN TEMPERATURE.....44 TO 57.  
24 HR TREND......ON AVERAGE, UNCHANGED.  
MAX HUMIDITY........44 TO 69 PERCENT.  
24 HR TREND......ON AVERAGE, 16 PERCENT DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...LIGHT DOWNSLOPE WINDS LESS THAN 8 MPH.  
RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 8 MPH.  
HAINES INDEX........4 LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......300-400 FT AGL.  
TRANSPORT WINDS....EAST 5 TO 10 MPH.  
   
MONDAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....73 TO 80.  
24 HR TREND......ON AVERAGE, 7 DEGREES WARMER.  
MIN HUMIDITY........21 TO 26 PERCENT.  
24 HR TREND......ON AVERAGE, 12 PERCENT DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...LIGHT UPSLOPE WINDS LESS THAN 8 MPH IN THE  
MORNING, BECOMING SOUTH AROUND 8 MPH IN  
THE AFTERNOON.  
RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 8 MPH IN THE  
MORNING, BECOMING SOUTH 8 TO 9 MPH IN THE  
AFTERNOON.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......6000-8000 FT AGL.  
TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH.  
   
MONDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....48 TO 59.  
24 HR TREND......ON AVERAGE, 3 DEGREES WARMER.  
MAX HUMIDITY........41 TO 61 PERCENT.  
24 HR TREND......ON AVERAGE, 7 PERCENT DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...LIGHT DOWNSLOPE WINDS LESS THAN 8 MPH IN  
THE EVENING, BECOMING NORTHEAST AROUND 8  
MPH AFTER MIDNIGHT.  
RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 8 MPH IN THE  
EVENING, BECOMING EAST 8 TO 9 MPH AFTER  
MIDNIGHT.  
HAINES INDEX........4 LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......300-400 FT AGL.  
TRANSPORT WINDS....NORTHEAST 5 TO 10 MPH.  
   
TUESDAY
 
 
SKY/WEATHER.........PARTLY SUNNY IN THE MORNING, THEN CLEARING.  
MAX TEMPERATURE.....71 TO 79.  
24 HR TREND......ON AVERAGE, 2 DEGREES COOLER.  
MIN HUMIDITY........26 TO 31 PERCENT.  
24 HR TREND......ON AVERAGE, 4 PERCENT WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...LIGHT UPSLOPE WINDS LESS THAN 8 MPH.  
RIDGES/UPR SLOPES....SOUTHEAST AROUND 8 MPH IN THE MORNING,  
BECOMING LIGHT IN THE AFTERNOON.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......7000-8500 FT AGL.  
TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH.  
 

 
=  
 
IDZ420-424-211530-  
TREASURE VALLEY BLM-WESTERN TWIN FALLS BLM-  
259 PM MDT SUN SEP 20 2020  
   
TONIGHT
 
 
SKY/WEATHER.........CLEAR.  
MIN TEMPERATURE.....44 TO 55.  
24 HR TREND......ON AVERAGE, 2 DEGREES COOLER.  
MAX HUMIDITY........46 TO 71 PERCENT.  
24 HR TREND......ON AVERAGE, 13 PERCENT DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...LIGHT DOWNSLOPE WINDS LESS THAN 8 MPH.  
RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 8 MPH IN THE  
EVENING, BECOMING NORTHEAST AROUND 8 MPH  
AFTER MIDNIGHT.  
HAINES INDEX........4 LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......300-400 FT AGL.  
TRANSPORT WINDS....EAST 5 TO 10 MPH.  
   
MONDAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....78 TO 86.  
24 HR TREND......ON AVERAGE, 9 DEGREES WARMER.  
MIN HUMIDITY........15 TO 25 PERCENT.  
24 HR TREND......ON AVERAGE, 13 PERCENT DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...SOUTHEAST 8 TO 11 MPH.  
RIDGES/UPR SLOPES....SOUTHEAST 8 TO 11 MPH.  
HAINES INDEX........4 LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......7000-9000 FT AGL.  
TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH.  
   
MONDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....48 TO 58.  
24 HR TREND......ON AVERAGE, 4 DEGREES WARMER.  
MAX HUMIDITY........40 TO 60 PERCENT.  
24 HR TREND......ON AVERAGE, 8 PERCENT DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...LIGHT DOWNSLOPE WINDS LESS THAN 8 MPH.  
RIDGES/UPR SLOPES....EAST AROUND 8 MPH.  
HAINES INDEX........4 LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......300-400 FT AGL.  
TRANSPORT WINDS....EAST 5 TO 10 MPH.  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....76 TO 83.  
24 HR TREND......ON AVERAGE, 3 DEGREES COOLER.  
MIN HUMIDITY........19 TO 29 PERCENT.  
24 HR TREND......ON AVERAGE, 4 PERCENT WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...LIGHT UPSLOPE WINDS LESS THAN 8 MPH IN THE  
MORNING, BECOMING WEST 8 TO 10 MPH IN THE  
AFTERNOON.  
RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 8 MPH IN THE  
MORNING, BECOMING SOUTHWEST 8 TO 11 MPH  
WITH GUSTS TO 18 MPH IN THE AFTERNOON.  
HAINES INDEX........4 LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......5500-7500 FT AGL.  
TRANSPORT WINDS....SOUTHWEST 5 TO 20 MPH.  
 

 
=  
 
IDZ423-426-211530-  
OWYHEE MOUNTAINS-SOUTHERN HIGHLANDS-  
259 PM MDT SUN SEP 20 2020  
   
TONIGHT
 
 
SKY/WEATHER.........CLEAR.  
MIN TEMPERATURE.....41 TO 51.  
24 HR TREND......ON AVERAGE, UNCHANGED.  
MAX HUMIDITY........48 TO 73 PERCENT.  
24 HR TREND......ON AVERAGE, 16 PERCENT DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...SOUTHEAST AROUND 8 MPH.  
RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 8 MPH.  
HAINES INDEX........4 LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......300-400 FT AGL.  
TRANSPORT WINDS....SOUTHEAST 5 TO 10 MPH.  
   
MONDAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....76 TO 84.  
24 HR TREND......ON AVERAGE, 10 DEGREES WARMER.  
MIN HUMIDITY........12 TO 22 PERCENT.  
24 HR TREND......ON AVERAGE, 14 PERCENT DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...SOUTHEAST AROUND 10 MPH.  
RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 8 MPH IN THE  
MORNING, BECOMING SOUTHWEST 8 TO 10 MPH IN  
THE AFTERNOON.  
HAINES INDEX........4 LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......8000-10000 FT AGL.  
TRANSPORT WINDS....SOUTHWEST 10 TO 20 MPH.  
   
MONDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....45 TO 56.  
24 HR TREND......ON AVERAGE, 5 DEGREES WARMER.  
MAX HUMIDITY........36 TO 56 PERCENT.  
24 HR TREND......ON AVERAGE, 14 PERCENT DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...SOUTH AROUND 10 MPH.  
RIDGES/UPR SLOPES....SOUTHWEST 8 TO 12 MPH.  
HAINES INDEX........5 MODERATE.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......400 FT AGL.  
TRANSPORT WINDS....SOUTHWEST 5 TO 15 MPH.  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....73 TO 82.  
24 HR TREND......ON AVERAGE, 2 DEGREES COOLER.  
MIN HUMIDITY........12 TO 22 PERCENT.  
24 HR TREND......ON AVERAGE, UNCHANGED.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...WEST 8 TO 12 MPH.  
RIDGES/UPR SLOPES....SOUTHWEST 8 TO 14 MPH. GUSTS TO 22 MPH IN  
THE AFTERNOON.  
HAINES INDEX........4 LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......7000-9000 FT AGL.  
TRANSPORT WINDS....SOUTHWEST 10 TO 25 MPH.  
 

 
=  
 
ORZ646-211530-  
BAKER VALLEY-  
159 PM PDT SUN SEP 20 2020  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....39 TO 54.  
24 HR TREND......ON AVERAGE, UNCHANGED.  
MAX HUMIDITY........51 TO 76 PERCENT.  
24 HR TREND......ON AVERAGE, 14 PERCENT DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...SOUTHEAST AROUND 8 MPH IN THE EVENING,  
BECOMING LIGHT DOWNSLOPE LESS THAN 8 MPH  
AFTER MIDNIGHT.  
RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 8 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
   
MONDAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....71 TO 79.  
24 HR TREND......ON AVERAGE, 6 DEGREES WARMER.  
MIN HUMIDITY........21 TO 28 PERCENT.  
24 HR TREND......ON AVERAGE, 11 PERCENT DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...LIGHT UPSLOPE WINDS LESS THAN 8 MPH IN THE  
MORNING, BECOMING SOUTH 8 TO 10 MPH IN THE  
AFTERNOON.  
RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 8 MPH IN THE  
MORNING, BECOMING SOUTH 8 TO 10 MPH IN THE  
AFTERNOON.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
   
MONDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR IN THE EVENING, THEN BECOMING  
MOSTLY CLOUDY AFTER MIDNIGHT.  
MIN TEMPERATURE.....43 TO 57.  
24 HR TREND......ON AVERAGE, 4 DEGREES WARMER.  
MAX HUMIDITY........51 TO 76 PERCENT.  
24 HR TREND......ON AVERAGE, 3 PERCENT DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...SOUTHWEST AROUND 8 MPH IN THE EVENING,  
SHIFTING TO NORTHWEST 8 TO 10 MPH AFTER  
MIDNIGHT.  
RIDGES/UPR SLOPES....SOUTHWEST 8 TO 10 MPH IN THE EVENING,  
SHIFTING TO NORTHWEST AFTER MIDNIGHT.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
   
TUESDAY
 
 
SKY/WEATHER.........PARTLY SUNNY IN THE MORNING, THEN CLEARING.  
MAX TEMPERATURE.....70 TO 78.  
24 HR TREND......ON AVERAGE, UNCHANGED.  
MIN HUMIDITY........25 TO 34 PERCENT.  
24 HR TREND......ON AVERAGE, 5 PERCENT WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...WEST AROUND 8 MPH.  
RIDGES/UPR SLOPES....WEST AROUND 9 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
 

 
=  
 
ORZ636-637-211530-  
BURNS BLM-VALE BLM-  
259 PM MDT SUN SEP 20 2020 /159 PM PDT SUN SEP 20 2020/  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....37 TO 52.  
24 HR TREND......ON AVERAGE, UNCHANGED.  
MAX HUMIDITY........38 TO 58 PERCENT.  
24 HR TREND......ON AVERAGE, 16 PERCENT DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...LIGHT DOWNSLOPE WINDS LESS THAN 8 MPH.  
RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 8 MPH.  
HAINES INDEX........4 LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
   
MONDAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....75 TO 83.  
24 HR TREND......ON AVERAGE, 8 DEGREES WARMER.  
MIN HUMIDITY........11 TO 21 PERCENT.  
24 HR TREND......ON AVERAGE, 11 PERCENT DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...LIGHT UPSLOPE WINDS LESS THAN 8 MPH IN THE  
MORNING, BECOMING SOUTHWEST 8 TO 11 MPH  
WITH GUSTS TO 18 MPH IN THE AFTERNOON.  
RIDGES/UPR SLOPES....SOUTHWEST 8 TO 13 MPH. GUSTS TO 20 MPH IN  
THE AFTERNOON.  
HAINES INDEX........4 LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
   
MONDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....41 TO 54.  
24 HR TREND......ON AVERAGE, 3 DEGREES WARMER.  
MAX HUMIDITY........40 TO 60 PERCENT.  
24 HR TREND......ON AVERAGE, 4 PERCENT DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...WEST 8 TO 12 MPH.  
RIDGES/UPR SLOPES....SOUTHWEST 8 TO 14 MPH. GUSTS TO 22 MPH IN  
THE EVENING.  
HAINES INDEX........4 LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....72 TO 80.  
24 HR TREND......ON AVERAGE, 2 DEGREES COOLER.  
MIN HUMIDITY........15 TO 23 PERCENT.  
24 HR TREND......ON AVERAGE, 4 PERCENT WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...LIGHT UPSLOPE WINDS LESS THAN 8 MPH IN THE  
MORNING, BECOMING SOUTHWEST 8 TO 12 MPH  
WITH GUSTS TO 20 MPH IN THE AFTERNOON.  
RIDGES/UPR SLOPES....SOUTHWEST 8 TO 14 MPH. GUSTS TO 22 MPH IN  
THE AFTERNOON.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
 

 
=  
 
   
FORECAST DAYS 3 THROUGH 7
 
 
   
WEDNESDAY
 
PARTLY CLOUDY. LOWS 43 TO 56. HIGHS 68 TO 83.  
SOUTHWEST WINDS 10 TO 15 MPH.    
THURSDAY
 
PARTLY CLOUDY. A 30 PERCENT CHANCE OF SHOWERS. LOWS  
46 TO 56. HIGHS 64 TO 79. SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS  
TO 25 MPH.    
FRIDAY
 
MOSTLY CLOUDY. A 30 PERCENT CHANCE OF SHOWERS. LOWS  
38 TO 50. HIGHS 58 TO 73. WEST WINDS 10 TO 15 MPH.    
SATURDAY
 
MOSTLY CLOUDY. A 30 PERCENT CHANCE OF SHOWERS. LOWS  
37 TO 49. HIGHS 55 TO 70.    
SUNDAY
 
PARTLY CLOUDY. A 20 PERCENT CHANCE OF SHOWERS. LOWS  
38 TO 49. HIGHS 58 TO 73.  
 
.OUTLOOK FOR MONDAY SEPTEMBER 28 THROUGH SUNDAY OCTOBER 4  
FAVORS ABOVE NORMAL TEMPERATURES AND BELOW NORMAL PRECIPITATION.  
 

 
=  
 
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