FNUS75 KBOI 232209
FWSBOI

Spot Forecast for Crooked...USFS
National Weather Service Boise ID
409 PM MDT Sun Aug 23 2026

Forecast is based on forecast start time of 0600 MDT on August 24. 
If conditions become unrepresentative...contact the National Weather
Service.

Please contact our office at (208)334-9060, if you have questions
or concerns with this forecast.

...DRY WITH AFTERNOON BREEZES...
...CUMULUS DEVELOPS EACH AFTERNOON OVER MTNS...

.DISCUSSION...
Fairly steady forecast each day as temperatures through the week 
remain in the upper 80s to near 90 degrees in the afternoon and 
upper 50s in the morning. Winds out of the southwest each 
afternoon as upslopes kick in, aided by the prevailing flow a 15 
to 20 mph gust develops each afternoon along ridge tops and the 
upper portions of mid-slopes. NE-SW valleys remain mostly 
sheltered from the higher winds. A light northwesterly each night 
and generally downsloping, not expected to be stronger than 10 mph
each night. Some lingering monsoonal moisture remains through the
week. While storms remain well south and east of the fire, local 
cumulus buildups and virga could cause wind directions to be 
briefly erratic in the late afternoon each day.

.MONDAY...

Sky/weather.........Mostly sunny. 
Max temperature.....84 to 89. 
Min humidity........13 to 18 percent. 
CWR.................0 percent. 
Wind - 20 foot......North 4 to 8 mph in the morning, becoming calm or
                    light and variable around 0900, then southwest 5 
                    to 9 mph around noon with gusts on mid-slopes
                    and ridges up to 16 mph. 
Mixing height.......11000 ft AGL. 
Transport winds.....Southwest around 15 mph. 
Ventilation Index...1650 excellent. 

.MONDAY NIGHT...

Sky/weather.........Mostly cloudy. 
Min temperature.....56 to 61. 
Max humidity........46 to 51 percent. 
CWR.................0 percent. 
Wind - 20 foot......Southwest around 6 mph in the evening shifting 
                    to the northwest overnight. 
Mixing height.......100 ft AGL. 
Transport winds.....East around 5 mph. 
Ventilation Index...5 poor. 

.TUESDAY...

Sky/weather.........Mostly sunny. 
Max temperature.....85 to 91. 
Min humidity........14 to 19 percent. 
CWR.................0 percent. 
Wind - 20 foot......North around 6 mph in the morning shifting to 
                    the southwest around 8 mph with gusts to around 
                    16 mph in the afternoon. 
Mixing height.......11500 ft AGL. 
Transport winds.....Southwest around 15 mph. 
Ventilation Index...1725 excellent. 

$$
Forecaster...Macfarlane
Requested by...Idaho Team 1
Type of request...WILDFIRE
.TAG 2620305.0/BOI
.DELDT 08/24/26
.FormatterVersion 2.0.0
.EMAIL ben_dyer@firenet.gov,idbdc@firenet.gov,2026.crooked.plans@firenet.gov