640
FNUS75 KBOI 220921
FWSBOI

Spot Forecast for Chimney...USFS
National Weather Service Boise ID
321 AM MDT Sun Sep 22 2024

Forecast is based on forecast start time of 0600 MDT on September 22.
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 AND WARM FOR THE WEEK AHEAD...
...BREEZY CONDITIONS MONDAY AND AGAIN WEDNESDAY...

.DISCUSSION...
Dry conditions will prevail through the upcoming week. A passing wave
will increase clouds and raise relative humidly on Monday before high
pressure builds over the region Tuesday and Wednesday. This will
result in notable warming, with Wednesday being the warmest day of the
week. Breezy conditions will impact the fire site in northwest flow on
Monday and from the southwest on Wednesday. Temperatures will remain
above normal through Friday.


.TODAY...

Sky/weather.........Sunny.
Max temperature.....64 to 69.
Min humidity........25 to 30 percent.
CWR.................0 percent.
LAL.................1.
Wind - 20 foot......East around 5 mph in the morning shifting to
                    the west 5 to 8 mph in the afternoon.
Mixing height.......5000 ft AGL.
Transport winds.....West around 10 mph.
Haines Index........3 very low.
Ventilation Index...500 good.

.TONIGHT...

Sky/weather.........Partly cloudy in the evening then becoming
                    mostly cloudy overnight.
Min temperature.....45 to 50.
Max humidity........47 to 52 percent.
CWR.................0 percent.
LAL.................1.
Wind - 20 foot......Northwest around 8 mph.
Mixing height.......200 ft AGL.
Transport winds.....North around 10 mph.
Haines Index........4 low.
Ventilation Index...20 poor.

.MONDAY...

Sky/weather.........Mostly sunny.
Max temperature.....66 to 71.
Min humidity........29 to 34 percent.
CWR.................0 percent.
LAL.................1.
Wind - 20 foot......Northwest 8 to 12 mph. Gusts up to 18 mph in
                    the afternoon.
Mixing height.......6000 ft AGL.
Transport winds.....Northwest around 15 mph.
Haines Index........2 very low.
Ventilation Index...900 excellent.

$$
Forecaster...Groenert
Requested by...Robert MacDonald
Type of request...WILDFIRE
.TAG 2422845.0/BOI
.DELDT 09/22/24
.FormatterVersion 2.0.0
.EMAIL robert.j.macdonald@usda.gov