430
FNUS75 KBOI 202256
FWSBOI

Spot Forecast for Chimney...BLM
National Weather Service Boise ID
456 PM MDT Fri Sep 20 2024

Forecast is based on forecast start time of 2000 MDT on September 20.
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.

...GUSTY WINDS DIMINISHING THIS EVENING...
...DRY AND MILD WITH LIGHTER WINDS THIS WEEKEND...

.DISCUSSION...
Dry northwest flow will persist over the region through the
weekend. Conditions will trend warmer and drier through Sunday.
Gusty this afternoon will diminish this evening. Lighter winds
are expected over the weekend.

.TONIGHT...

Sky/weather.........Mostly clear.
Min temperature.....40 to 45.
Max humidity........50 to 55 percent.
CWR.................0 percent.
LAL.................1.
Wind - 20 foot......North 5 to 11 mph. Gusts up to 16 mph early in
                    the evening.
Mixing height.......200 ft AGL.
Transport winds.....North around 10 mph.
Haines Index........3 very low.
Ventilation Index...20 poor.

.SATURDAY...

Sky/weather.........Sunny.
Max temperature.....61 to 66.
Min humidity........25 to 30 percent.
CWR.................0 percent.
LAL.................1.
Wind - 20 foot......East 3 to 6 mph in the morning shifting to
                    the south in the afternoon.
Mixing height.......5000 ft AGL.
Transport winds.....Northwest around 10 mph.
Haines Index........2 very low.
Ventilation Index...500 good.

.SATURDAY NIGHT...

Sky/weather.........Mostly clear.
Min temperature.....41 to 46.
Max humidity........55 to 60 percent.
CWR.................0 percent.
LAL.................1.
Wind - 20 foot......West 3 to 7 mph in the evening shifting to
                    the east 3 to 5 mph overnight.
Mixing height.......200 ft AGL.
Transport winds.....North around 5 mph.
Haines Index........2 very low.
Ventilation Index...10 poor.

.SUNDAY...

Sky/weather.........Sunny.
Max temperature.....63 to 68.
Min humidity........21 to 26 percent.
CWR.................0 percent.
LAL.................1.
Wind - 20 foot......East less than 5 mph in the morning shifting to
                    the southwest 4 to 7 mph in the afternoon.
Mixing height.......5000 ft AGL.
Transport winds.....West around 10 mph.
Haines Index........3 very low.
Ventilation Index...500 good.

$$
Forecaster...Wojcik
Requested by...Robert MacDonald
Type of request...WILDFIRE
.TAG 2422811.0/BOI
.DELDT 09/20/24
.FormatterVersion 2.0.0
.EMAIL matthew.ganguet@usda.gov,robert.j.macdonald@usda.gov