025  
FNUS55 KBOI 212054  
FWFBOI  
 
FIRE WEATHER PLANNING FORECAST FOR SW IDAHO AND SE OREGON  
NATIONAL WEATHER SERVICE BOISE ID  
254 PM MDT WED AUG 21 2019  
   
..STRONG COLD FRONT LATE THIS AFTERNOON INTO TONIGHT
 
   
..SCATTERED SHOWERS AND ISOLATED STORMS MAINLY NORTH TONIGHT
 
 
...POSSIBLE WIND/RH EVENT SAT/SUN AFTERNOON/EVENING FOR ZONES  
424 AND 426...  
   
DISCUSSION
 
 
A STRONG COLD FRONT WILL BRING SIGNIFICANT WINDS TO THE REGION  
LATE THIS AFTERNOON INTO TONIGHT, WITH GUSTS 30 TO 50 MPH AS THE  
FRONT HITS. THE FRONT WILL ENTER THE OR ZONES 6-7 PM PDT AND MOVE  
RAPIDLY SOUTHEAST, REACHING ONTARIO AROUND 8 PM MDT AND BOISE  
AROUND 10 PM MDT. IT WILL CONTINUE TO MOUNTAIN HOME AROUND 11 PM  
MDT AND REACH TWIN FALLS AND JEROME BETWEEN MIDNIGHT AND 1 AM MDT.  
TRAVEL THROUGH THE MOUNTAINS IS HARDER TO PREDICT, BUT IT LOOKS  
LIKE IT WILL HIT THE NETHKER FIRE AROUND 9 PM, MCCALL AROUND 10  
PM, AND GARDEN VALLEY AROUND MIDNIGHT. SCATTERED SHOWERS AND  
ISOLATED THUNDERSTORMS ARE FORECAST, MAINLY NORTH OF A LINE FROM  
BURNS TO ONTARIO TO STANLEY. RH VALUES WILL CLIMB QUICKLY BEHIND  
THE FRONT. ONCE THIS SYSTEM MOVES THROUGH, THU WILL BE COOL. TEMPS  
WILL WARM UP FRI AND SAT. WINDS WILL INCREASE SATURDAY AFTERNOON  
AND EVENING, AND AGAIN SUNDAY. IT WILL BE HOT AND DRY THE FIRST  
HALF OF NEXT WEEK.  
 
IDZ401-221545-  
WESTERN PAYETTE NATIONAL FOREST-  
254 PM MDT WED AUG 21 2019  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY IN THE EVENING, THEN BECOMING  
MOSTLY CLOUDY AFTER MIDNIGHT. SCATTERED  
SHOWERS. ISOLATED THUNDERSTORMS IN THE EVENING.  
CHANCE OF PRECIPITATION 30 PERCENT.  
MIN TEMPERATURE.....50 TO 59.  
24 HR TREND......ON AVERAGE, UNCHANGED.  
MAX HUMIDITY........66 TO 78 PERCENT.  
24 HR TREND......ON AVERAGE, 2 PERCENT WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTHWEST 14 TO 20 MPH.  
RIDGES/UPR SLOPES....NORTH 16 TO 22 MPH. GUSTS TO 30 MPH IN THE  
EVENING, DECREASING TO 24 MPH AFTER  
MIDNIGHT.  
HAINES INDEX........4 LOW.  
LAL.................2 IN THE EVENING, DECREASING TO 1 AFTER  
MIDNIGHT.  
CWR /0.10 INCH/.....10 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......800-1300 FT AGL.  
TRANSPORT WINDS....NORTH UP TO 15 MPH.  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY. A 20 PERCENT CHANCE OF SHOWERS IN  
THE MORNING.  
MAX TEMPERATURE.....61 TO 76.  
24 HR TREND......ON AVERAGE, 18 DEGREES COOLER.  
MIN HUMIDITY........30 TO 45 PERCENT.  
24 HR TREND......ON AVERAGE, 21 PERCENT WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTHWEST AROUND 9 MPH.  
RIDGES/UPR SLOPES....NORTHWEST AROUND 10 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......5000-7000 FT AGL.  
TRANSPORT WINDS....NORTH 5 TO 10 MPH.  
   
THURSDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....44 TO 54.  
24 HR TREND......ON AVERAGE, 6 DEGREES COOLER.  
MAX HUMIDITY........63 TO 90 PERCENT.  
24 HR TREND......ON AVERAGE, 2 PERCENT WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTH AROUND 10 MPH.  
RIDGES/UPR SLOPES....NORTH 8 TO 12 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......200-300 FT AGL.  
TRANSPORT WINDS....NORTHEAST AROUND 5 MPH.  
   
FRIDAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....68 TO 83.  
24 HR TREND......ON AVERAGE, 7 DEGREES WARMER.  
MIN HUMIDITY........18 TO 28 PERCENT.  
24 HR TREND......ON AVERAGE, 16 PERCENT DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...LIGHT UPSLOPE WINDS LESS THAN 8 MPH.  
RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 8 MPH IN THE  
MORNING, BECOMING SOUTHWEST 8 TO 9 MPH IN  
THE AFTERNOON.  
HAINES INDEX........4 LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......5500-6500 FT AGL.  
TRANSPORT WINDS....SOUTHWEST 5 TO 15 MPH.  
 

 
=  
 
IDZ402-221545-  
EASTERN PAYETTE NATIONAL FOREST-  
254 PM MDT WED AUG 21 2019  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY IN THE EVENING, THEN MOSTLY  
CLOUDY WITH SCATTERED SHOWERS AFTER MIDNIGHT.  
CHANCE OF SHOWERS 40 PERCENT.  
MIN TEMPERATURE.....48 TO 56.  
24 HR TREND......ON AVERAGE, UNCHANGED.  
MAX HUMIDITY........66 TO 80 PERCENT.  
24 HR TREND......ON AVERAGE, UNCHANGED.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTHWEST 11 TO 17 MPH.  
RIDGES/UPR SLOPES....NORTHWEST 11 TO 17 MPH WITH GUSTS TO 24  
MPH.  
HAINES INDEX........4 LOW.  
LAL.................1.  
CWR /0.10 INCH/.....10 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......1000-2000 FT AGL.  
TRANSPORT WINDS....NORTH AROUND 5 MPH.  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY. A CHANCE OF RAIN SHOWERS, MAINLY  
IN THE MORNING. CHANCE OF SHOWERS 30 PERCENT.  
MAX TEMPERATURE.....57 TO 71.  
24 HR TREND......ON AVERAGE, 18 DEGREES COOLER.  
MIN HUMIDITY........35 TO 50 PERCENT.  
24 HR TREND......ON AVERAGE, 26 PERCENT WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...LIGHT UPSLOPE WINDS LESS THAN 8 MPH.  
RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 8 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR /0.10 INCH/.....10 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......5000-6000 FT AGL.  
TRANSPORT WINDS....NORTHWEST 5 TO 10 MPH.  
   
THURSDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....42 TO 50.  
24 HR TREND......ON AVERAGE, 6 DEGREES COOLER.  
MAX HUMIDITY........76 TO 87 PERCENT.  
24 HR TREND......ON AVERAGE, 8 PERCENT WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTH 8 TO 9 MPH IN THE EVENING, BECOMING  
LIGHT DOWNSLOPE LESS THAN 8 MPH AFTER  
MIDNIGHT.  
RIDGES/UPR SLOPES....NORTH 8 TO 10 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....EAST UP TO 5 MPH.  
   
FRIDAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....65 TO 80.  
24 HR TREND......ON AVERAGE, 9 DEGREES WARMER.  
MIN HUMIDITY........20 TO 29 PERCENT.  
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 SOUTHWEST AROUND 8 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......5500-7000 FT AGL.  
TRANSPORT WINDS....SOUTHWEST AROUND 15 MPH.  
 

 
=  
 
IDZ403-221545-  
NORTHERN BOISE NATIONAL FOREST-  
254 PM MDT WED AUG 21 2019  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY IN THE EVENING, THEN MOSTLY  
CLOUDY WITH SCATTERED SHOWERS AFTER MIDNIGHT.  
CHANCE OF SHOWERS 30 PERCENT.  
MIN TEMPERATURE.....48 TO 56.  
24 HR TREND......ON AVERAGE, UNCHANGED.  
MAX HUMIDITY........60 TO 78 PERCENT.  
24 HR TREND......ON AVERAGE, UNCHANGED.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTHWEST 8 TO 12 MPH. GUSTS TO 22 MPH  
AFTER MIDNIGHT.  
RIDGES/UPR SLOPES....NORTHWEST AROUND 10 MPH. GUSTS TO 20 MPH  
AFTER MIDNIGHT.  
HAINES INDEX........4 LOW.  
LAL.................1.  
CWR /0.10 INCH/.....10 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......800-1300 FT AGL.  
TRANSPORT WINDS....NORTH 5 TO 10 MPH.  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN  
SHOWERS IN THE MORNING.  
MAX TEMPERATURE.....61 TO 75.  
24 HR TREND......ON AVERAGE, 17 DEGREES COOLER.  
MIN HUMIDITY........30 TO 40 PERCENT.  
24 HR TREND......ON AVERAGE, 19 PERCENT WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...LIGHT UPSLOPE WINDS LESS THAN 8 MPH IN THE  
MORNING, BECOMING NORTHWEST 8 TO 9 MPH IN  
THE AFTERNOON.  
RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 8 MPH IN THE  
MORNING, BECOMING NORTHWEST 8 TO 9 MPH IN  
THE AFTERNOON.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......5500-7500 FT AGL.  
TRANSPORT WINDS....NORTHWEST 5 TO 10 MPH.  
   
THURSDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....41 TO 49.  
24 HR TREND......ON AVERAGE, 7 DEGREES COOLER.  
MAX HUMIDITY........66 TO 89 PERCENT.  
24 HR TREND......ON AVERAGE, 11 PERCENT WETTER.  
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....NORTHWEST 8 TO 9 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....EAST UP TO 5 MPH.  
   
FRIDAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....68 TO 80.  
24 HR TREND......ON AVERAGE, 7 DEGREES WARMER.  
MIN HUMIDITY........19 TO 24 PERCENT.  
24 HR TREND......ON AVERAGE, 13 PERCENT DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...LIGHT UPSLOPE WINDS LESS THAN 8 MPH.  
RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 8 MPH IN THE  
MORNING, BECOMING SOUTHWEST 8 TO 9 MPH IN  
THE AFTERNOON.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......5500-6500 FT AGL.  
TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH.  
 

 
=  
 
IDZ421-221545-  
SOUTHERN BOISE NATIONAL FOREST/WESTERN SAWTOOTH NATIONAL FOREST-  
254 PM MDT WED AUG 21 2019  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY IN THE EVENING, THEN BECOMING  
MOSTLY CLOUDY AFTER MIDNIGHT.  
MIN TEMPERATURE.....52 TO 58.  
24 HR TREND......ON AVERAGE, UNCHANGED.  
MAX HUMIDITY........48 TO 68 PERCENT.  
24 HR TREND......ON AVERAGE, 2 PERCENT WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTHWEST 8 TO 12 MPH. GUSTS TO 20 MPH  
AFTER MIDNIGHT.  
RIDGES/UPR SLOPES....NORTHWEST 8 TO 13 MPH. GUSTS TO 22 MPH  
AFTER MIDNIGHT.  
HAINES INDEX........5 MODERATE.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......200-700 FT AGL.  
TRANSPORT WINDS....NORTHWEST UP TO 10 MPH.  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....70 TO 78, EXCEPT 62 TO 70 ABOVE 6500 FEET.  
24 HR TREND......ON AVERAGE, 15 DEGREES COOLER.  
MIN HUMIDITY........23 TO 33 PERCENT.  
24 HR TREND......ON AVERAGE, 15 PERCENT WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...WEST 9 TO 15 MPH.  
RIDGES/UPR SLOPES....NORTHWEST 9 TO 15 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......6500-8500 FT AGL.  
TRANSPORT WINDS....NORTHWEST 10 TO 20 MPH.  
   
THURSDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....41 TO 51.  
24 HR TREND......ON AVERAGE, 9 DEGREES COOLER.  
MAX HUMIDITY........61 TO 85 PERCENT.  
24 HR TREND......ON AVERAGE, 12 PERCENT WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTH 8 TO 14 MPH.  
RIDGES/UPR SLOPES....NORTH 10 TO 16 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......100-200 FT AGL.  
TRANSPORT WINDS....NORTHEAST AROUND 5 MPH.  
   
FRIDAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....75 TO 83, EXCEPT 68 TO 74 ABOVE 6500 FEET.  
24 HR TREND......ON AVERAGE, 5 DEGREES WARMER.  
MIN HUMIDITY........15 TO 20 PERCENT, EXCEPT 19 TO 24 PERCENT ABOVE  
6500 FEET.  
24 HR TREND......ON AVERAGE, 9 PERCENT DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...LIGHT UPSLOPE WINDS LESS THAN 8 MPH.  
RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 8 MPH IN THE  
MORNING, BECOMING SOUTHWEST AROUND 8 MPH  
IN THE AFTERNOON.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......6000-6500 FT AGL.  
TRANSPORT WINDS....SOUTHWEST 5 TO 10 MPH.  
 

 
=  
 
IDZ400-221545-  
NORTHERN BOISE BLM-  
254 PM MDT WED AUG 21 2019  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY WITH ISOLATED SHOWERS. CHANCE OF  
SHOWERS 20 PERCENT.  
MIN TEMPERATURE.....58 TO 64.  
24 HR TREND......ON AVERAGE, UNCHANGED.  
MAX HUMIDITY........59 TO 69 PERCENT.  
24 HR TREND......ON AVERAGE, UNCHANGED.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...BREEZY. NORTHWEST 22 TO 28 MPH. GUSTS TO  
40 MPH IN THE EVENING, DECREASING TO 34  
MPH AFTER MIDNIGHT.  
RIDGES/UPR SLOPES....BREEZY. NORTHWEST 23 TO 29 MPH. GUSTS TO  
38 MPH IN THE EVENING, DECREASING TO 32  
MPH AFTER MIDNIGHT.  
HAINES INDEX........4 LOW.  
LAL.................1.  
CWR /0.10 INCH/.....10 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......300-800 FT AGL.  
TRANSPORT WINDS....NORTHWEST 5 TO 15 MPH.  
   
THURSDAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....75 TO 84.  
24 HR TREND......ON AVERAGE, 15 DEGREES COOLER.  
MIN HUMIDITY........26 TO 31 PERCENT.  
24 HR TREND......ON AVERAGE, 13 PERCENT WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTHWEST 8 TO 11 MPH.  
RIDGES/UPR SLOPES....NORTHWEST 8 TO 12 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......6500-7000 FT AGL.  
TRANSPORT WINDS....NORTHWEST AROUND 10 MPH.  
   
THURSDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....51 TO 57.  
24 HR TREND......ON AVERAGE, 7 DEGREES COOLER.  
MAX HUMIDITY........58 TO 75 PERCENT.  
24 HR TREND......ON AVERAGE, 3 PERCENT WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTH 8 TO 11 MPH.  
RIDGES/UPR SLOPES....NORTH 8 TO 12 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......100-200 FT AGL.  
TRANSPORT WINDS....NORTHEAST UP TO 10 MPH.  
   
FRIDAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....80 TO 88.  
24 HR TREND......ON AVERAGE, 4 DEGREES WARMER.  
MIN HUMIDITY........18 TO 23 PERCENT.  
24 HR TREND......ON AVERAGE, 9 PERCENT DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...LIGHT UPSLOPE 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......6000-6500 FT AGL.  
TRANSPORT WINDS....SOUTHWEST 5 TO 10 MPH.  
 

 
=  
 
IDZ420-424-221545-  
TREASURE VALLEY BLM-WESTERN TWIN FALLS BLM-  
254 PM MDT WED AUG 21 2019  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY IN THE EVENING, THEN BECOMING  
MOSTLY CLOUDY AFTER MIDNIGHT.  
MIN TEMPERATURE.....60 TO 65.  
24 HR TREND......ON AVERAGE, UNCHANGED.  
MAX HUMIDITY........52 TO 70 PERCENT.  
24 HR TREND......ON AVERAGE, UNCHANGED.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...BREEZY. NORTHWEST 19 TO 25 MPH. GUSTS TO  
32 MPH IN THE EVENING, INCREASING TO 38  
MPH AFTER MIDNIGHT.  
RIDGES/UPR SLOPES....NORTHWEST 11 TO 17 MPH. GUSTS TO 24 MPH  
AFTER MIDNIGHT.  
HAINES INDEX........5 MODERATE.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......200-700 FT AGL.  
TRANSPORT WINDS....NORTHWEST 5 TO 20 MPH.  
   
THURSDAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....78 TO 84.  
24 HR TREND......ON AVERAGE, 16 DEGREES COOLER.  
MIN HUMIDITY........21 TO 29 PERCENT.  
24 HR TREND......ON AVERAGE, 11 PERCENT WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTHWEST 11 TO 17 MPH WITH GUSTS TO 24  
MPH.  
RIDGES/UPR SLOPES....WEST 10 TO 16 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......6000-8000 FT AGL.  
TRANSPORT WINDS....NORTHWEST 10 TO 25 MPH.  
   
THURSDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....51 TO 56.  
24 HR TREND......ON AVERAGE, 10 DEGREES COOLER.  
MAX HUMIDITY........57 TO 75 PERCENT.  
24 HR TREND......ON AVERAGE, 6 PERCENT WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTHWEST 10 TO 16 MPH. GUSTS TO 24 MPH IN  
THE EVENING.  
RIDGES/UPR SLOPES....NORTHWEST 11 TO 17 MPH. GUSTS TO 24 MPH IN  
THE EVENING.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......100-200 FT AGL.  
TRANSPORT WINDS....NORTHWEST UP TO 5 MPH.  
   
FRIDAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....82 TO 88.  
24 HR TREND......ON AVERAGE, 4 DEGREES WARMER.  
MIN HUMIDITY........15 TO 23 PERCENT.  
24 HR TREND......ON AVERAGE, 6 PERCENT DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...LIGHT UPSLOPE WINDS LESS THAN 8 MPH.  
RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 8 MPH IN THE  
MORNING, BECOMING SOUTHWEST AROUND 8 MPH  
IN THE AFTERNOON.  
HAINES INDEX........4 LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......5500-7000 FT AGL.  
TRANSPORT WINDS....WEST 5 TO 10 MPH.  
 

 
=  
 
IDZ423-221545-  
OWYHEE MOUNTAINS-  
254 PM MDT WED AUG 21 2019  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY IN THE EVENING, THEN BECOMING  
MOSTLY CLOUDY AFTER MIDNIGHT.  
MIN TEMPERATURE.....53 TO 63.  
24 HR TREND......ON AVERAGE, UNCHANGED.  
MAX HUMIDITY........57 TO 68 PERCENT.  
24 HR TREND......ON AVERAGE, UNCHANGED.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTHWEST 18 TO 24 MPH. GUSTS TO 32 MPH IN  
THE EVENING, INCREASING TO 38 MPH AFTER  
MIDNIGHT.  
RIDGES/UPR SLOPES....NORTHWEST 13 TO 19 MPH. GUSTS TO 18 MPH IN  
THE EVENING, INCREASING TO 28 MPH AFTER  
MIDNIGHT.  
HAINES INDEX........5 MODERATE.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......200-700 FT AGL.  
TRANSPORT WINDS....NORTHWEST 10 TO 25 MPH.  
   
THURSDAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....72 TO 82.  
24 HR TREND......ON AVERAGE, 14 DEGREES COOLER.  
MIN HUMIDITY........17 TO 27 PERCENT.  
24 HR TREND......ON AVERAGE, 9 PERCENT WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTHWEST 11 TO 17 MPH.  
RIDGES/UPR SLOPES....NORTHWEST 8 TO 12 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......6000-7500 FT AGL.  
TRANSPORT WINDS....NORTHWEST 10 TO 15 MPH.  
   
THURSDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....44 TO 53.  
24 HR TREND......ON AVERAGE, 9 DEGREES COOLER.  
MAX HUMIDITY........55 TO 71 PERCENT.  
24 HR TREND......ON AVERAGE, UNCHANGED.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTHWEST 8 TO 14 MPH.  
RIDGES/UPR SLOPES....NORTHWEST 8 TO 12 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......200-300 FT AGL.  
TRANSPORT WINDS....SOUTHWEST UP TO 5 MPH.  
   
FRIDAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....79 TO 87.  
24 HR TREND......ON AVERAGE, 6 DEGREES WARMER.  
MIN HUMIDITY........12 TO 22 PERCENT.  
24 HR TREND......ON AVERAGE, 6 PERCENT DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...LIGHT UPSLOPE 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......6000-8000 FT AGL.  
TRANSPORT WINDS....WEST 5 TO 10 MPH.  
 

 
=  
 
IDZ426-221545-  
SOUTHERN HIGHLANDS-  
254 PM MDT WED AUG 21 2019  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY IN THE EVENING, THEN BECOMING  
MOSTLY CLOUDY AFTER MIDNIGHT.  
MIN TEMPERATURE.....55 TO 64.  
24 HR TREND......ON AVERAGE, 2 DEGREES WARMER.  
MAX HUMIDITY........51 TO 57 PERCENT.  
24 HR TREND......ON AVERAGE, UNCHANGED.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...LIGHT DOWNSLOPE WINDS LESS THAN 8 MPH IN  
THE EVENING, BECOMING WEST 17 TO 23 MPH  
WITH GUSTS TO 34 MPH AFTER MIDNIGHT.  
RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 8 MPH IN THE  
EVENING, BECOMING WEST 8 TO 14 MPH WITH  
GUSTS TO 22 MPH AFTER MIDNIGHT.  
HAINES INDEX........5 MODERATE.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......200-300 FT AGL.  
TRANSPORT WINDS....WEST 5 TO 10 MPH.  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....76 TO 82.  
24 HR TREND......ON AVERAGE, 15 DEGREES COOLER.  
MIN HUMIDITY........21 TO 26 PERCENT.  
24 HR TREND......ON AVERAGE, 11 PERCENT WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...WEST 11 TO 17 MPH WITH GUSTS TO 24 MPH.  
RIDGES/UPR SLOPES....NORTHWEST 8 TO 14 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......5500-6500 FT AGL.  
TRANSPORT WINDS....WEST 15 TO 20 MPH.  
   
THURSDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....46 TO 54.  
24 HR TREND......ON AVERAGE, 10 DEGREES COOLER.  
MAX HUMIDITY........55 TO 68 PERCENT.  
24 HR TREND......ON AVERAGE, 8 PERCENT WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...WEST 10 TO 16 MPH. GUSTS TO 24 MPH IN THE  
EVENING.  
RIDGES/UPR SLOPES....WEST 8 TO 13 MPH. GUSTS TO 20 MPH IN THE  
EVENING.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
SMOKE DISPERSAL:  
MIXING HEIGHT......200 FT AGL.  
TRANSPORT WINDS....SOUTHWEST 5 TO 10 MPH.  
   
FRIDAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....81 TO 86.  
24 HR TREND......ON AVERAGE, 4 DEGREES WARMER.  
MIN HUMIDITY........13 TO 20 PERCENT.  
24 HR TREND......ON AVERAGE, 7 PERCENT DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...LIGHT UPSLOPE 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......6000-7500 FT AGL.  
TRANSPORT WINDS....WEST 5 TO 10 MPH.  
 

 
=  
 
ORZ646-221545-  
BAKER VALLEY-  
154 PM PDT WED AUG 21 2019  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS IN THE EVENING, THEN ISOLATED  
SHOWERS AFTER MIDNIGHT. CHANCE OF PRECIPITATION  
30 PERCENT.  
MIN TEMPERATURE.....50 TO 60.  
24 HR TREND......ON AVERAGE, 3 DEGREES COOLER.  
MAX HUMIDITY........68 TO 92 PERCENT.  
24 HR TREND......ON AVERAGE, 5 PERCENT WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...BREEZY. NORTHWEST 23 TO 29 MPH. GUSTS TO  
42 MPH IN THE EVENING.  
RIDGES/UPR SLOPES....BREEZY. NORTHWEST 23 TO 29 MPH WITH GUSTS  
TO 38 MPH IN THE EVENING, DECREASING TO 11  
TO 17 MPH AFTER MIDNIGHT.  
HAINES INDEX........3 VERY LOW.  
LAL.................2 IN THE EVENING, DECREASING TO 1 AFTER  
MIDNIGHT.  
CWR /0.10 INCH/.....10 PERCENT.  
   
THURSDAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....71 TO 81.  
24 HR TREND......ON AVERAGE, 16 DEGREES COOLER.  
MIN HUMIDITY........25 TO 35 PERCENT.  
24 HR TREND......ON AVERAGE, 13 PERCENT WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTHWEST 8 TO 12 MPH WITH GUSTS TO 20  
MPH.  
RIDGES/UPR SLOPES....NORTHWEST 8 TO 13 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
   
THURSDAY NIGHT
 
 
SKY/WEATHER.........CLEAR.  
MIN TEMPERATURE.....43 TO 54.  
24 HR TREND......ON AVERAGE, 6 DEGREES COOLER.  
MAX HUMIDITY........58 TO 82 PERCENT.  
24 HR TREND......ON AVERAGE, 10 PERCENT DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTHWEST 8 TO 13 MPH.  
RIDGES/UPR SLOPES....NORTHWEST 8 TO 13 MPH.  
HAINES INDEX........4 LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
   
FRIDAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....78 TO 86.  
24 HR TREND......ON AVERAGE, 6 DEGREES WARMER.  
MIN HUMIDITY........17 TO 22 PERCENT.  
24 HR TREND......ON AVERAGE, 10 PERCENT DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...LIGHT UPSLOPE 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.  
 

 
=  
 
ORZ636-637-221545-  
BURNS BLM-VALE BLM-  
254 PM MDT WED AUG 21 2019 /154 PM PDT WED AUG 21 2019/  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. ISOLATED SHOWERS IN THE EVENING.  
CHANCE OF SHOWERS 20 PERCENT.  
MIN TEMPERATURE.....48 TO 60.  
24 HR TREND......ON AVERAGE, 2 DEGREES COOLER.  
MAX HUMIDITY........57 TO 82 PERCENT.  
24 HR TREND......ON AVERAGE, 3 PERCENT WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...BREEZY. NORTHWEST 20 TO 26 MPH. GUSTS TO  
40 MPH IN THE EVENING, DECREASING TO 28  
MPH AFTER MIDNIGHT.  
RIDGES/UPR SLOPES....BREEZY. NORTHWEST 20 TO 26 MPH. GUSTS TO  
34 MPH IN THE EVENING, DECREASING TO 26  
MPH AFTER MIDNIGHT.  
HAINES INDEX........4 LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
   
THURSDAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....74 TO 83.  
24 HR TREND......ON AVERAGE, 13 DEGREES COOLER.  
MIN HUMIDITY........16 TO 23 PERCENT.  
24 HR TREND......ON AVERAGE, 7 PERCENT WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTHWEST 8 TO 12 MPH.  
RIDGES/UPR SLOPES....NORTHWEST AROUND 10 MPH.  
HAINES INDEX........4 LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
   
THURSDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....43 TO 53.  
24 HR TREND......ON AVERAGE, 6 DEGREES COOLER.  
MAX HUMIDITY........44 TO 64 PERCENT.  
24 HR TREND......ON AVERAGE, 13 PERCENT DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTH AROUND 10 MPH.  
RIDGES/UPR SLOPES....NORTH 8 TO 11 MPH.  
HAINES INDEX........4 LOW.  
LAL.................1.  
CWR /0.10 INCH/.....0 PERCENT.  
   
FRIDAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....82 TO 88.  
24 HR TREND......ON AVERAGE, 7 DEGREES WARMER.  
MIN HUMIDITY........12 TO 17 PERCENT.  
24 HR TREND......ON AVERAGE, 6 PERCENT DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...LIGHT UPSLOPE 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.  
 

 
=  
 
   
FORECAST DAYS 3 THROUGH 7
 
 
   
SATURDAY
 
PARTLY CLOUDY. LOWS 50 TO 62. HIGHS 75 TO 90. WEST  
WINDS UP TO 10 MPH WITH GUSTS TO 20 MPH.    
SUNDAY
 
MOSTLY CLEAR. LOWS 46 TO 59. HIGHS 74 TO 89. WEST WINDS  
10 TO 15 MPH WITH GUSTS TO 25 MPH.    
MONDAY
 
CLEAR. LOWS 45 TO 58. HIGHS 72 TO 87. NORTHWEST WINDS  
10 TO 15 MPH WITH GUSTS TO 25 MPH.    
TUESDAY
 
MOSTLY CLEAR. LOWS 45 TO 58. HIGHS 73 TO 88.    
WEDNESDAY
 
MOSTLY CLEAR. LOWS 47 TO 58. HIGHS 74 TO 89.  
 
.OUTLOOK FOR THURSDAY AUGUST 29 THROUGH WEDNESDAY SEPTEMBER 4  
 

 
=  
 
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