FNUS75 KBOI 191210
FWSBOI

Spot Forecast for Sailor Cap...South Idaho
National Weather Service Boise ID
610 AM MDT Tue May 19 2026

Forecast is based on forecast start time of 0700 MDT on May 19. 
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.

...BREEZY NORTHWEST WINDS THIS AFTERNOON...
...WARMING AND DRYING THROUGH THE WEEKEND...

.DISCUSSION...
Warm, dry, and unstable conditions will occur today and tomorrow 
with high mixing heights and breezy west to northwest winds each 
afternoon. Cumulus clouds and stray virga showers will develop 
during this afternoon, with brief outflow wind gusts up to 35 mph 
(10-20% chance). High pressure building over the region will bring
a warming and drying trend through the weekend with diurnal wind 
shifts. 

.REST OF TODAY...

Sky/weather.........Mostly sunny. 
Max temperature.....67 to 71. 
Min humidity........15 to 22 percent. 
CWR.................0 percent. 
Wind - 20 foot......Northwest around 10 to 14 mph. Gusts up to 
					25 mph in the afternoon. 
Mixing height.......10000 ft AGL. 
Transport winds.....West around 15 mph. 
Ventilation Index...1500 excellent. 

.TONIGHT...

Sky/weather.........Partly cloudy. 
Min temperature.....40 to 45. 
Max humidity........63 to 68 percent. 
CWR.................0 percent. 
Wind - 20 foot......Northwest 5 to 9 mph with gusts to around 16 
                    mph in the evening shifting to the southwest 
                    around 7 mph overnight. 
Mixing height.......100 ft AGL. 
Transport winds.....South around 10 mph. 
Ventilation Index...10 poor. 

.WEDNESDAY...

Sky/weather.........Partly sunny. 
Max temperature.....72 to 77. 
Min humidity........18 to 22 percent. 
CWR.................0 percent. 
Wind - 20 foot......West 8 to 13 mph. Gusts up to 23 mph in the 
                    afternoon. 
Mixing height.......9000 ft AGL. 
Transport winds.....West around 15 mph. 
Ventilation Index...1350 excellent. 

$$
Forecaster...Adams
Requested by...Jesse Goodwin
Type of request...WILDFIRE
.TAG 2613997.0/BOI
.DELDT 05/19/26
.FormatterVersion 2.0.0
.EMAIL idscc@firenet.gov,jjgoodwin@blm.gov