172
FNUS75 KBOI 280423
FWSBOI

Spot Forecast for Logan...USFS
National Weather Service Boise ID
1023 PM MDT Fri Sep 27 2024

Forecast is based on forecast start time of 2200 MDT on September 27.
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.

...WARM AND DRY CONDITIONS WITH SOUTHERLY WINDS TOMORROW...
...WEAK DRY FRONTAL PASSAGE SUNDAY...

.DISCUSSION...
High pressure will continue to peak over the region tomorrow,
with the warmest temperatures of the period on deck. Nearly
critical fire weather conditions will occur in the afternoon due
to winds and low relative humidities. Breezy upslope southerly
winds will begin later in the afternoon around 1400 MDT paired
with low afternoon humidities. A dry cool front is anticipated to
pass on Sunday afternoon around 1500-1600 MDT, bringing winds
as high as 30 mph on ridgetops but slightly higher minimum relative
humidities.

.SATURDAY...

Sky/weather.........Sunny.
Max temperature.....75 to 83.
Min humidity........15 to 20 percent.
CWR.................0 percent.
LAL.................1.
Wind - 20 foot......Southwest 5 to 11 mph. Gusts up to 18 mph in the
                    afternoon.
Mixing height.......8000 ft AGL.
Transport winds.....Southwest around 25 mph.
Haines Index........4 low.
Ventilation Index...2000 excellent.

.SATURDAY NIGHT...

Sky/weather.........Mostly clear.
Min temperature.....39 to 44.
Max humidity........52 to 65 percent.
CWR.................0 percent.
LAL.................1.
Wind - 20 foot......Southwest 5 to 10 mph. Gusts up to 20 mph in the
                    evening.
Mixing height.......400 ft AGL.
Transport winds.....Southwest around 10 mph.
Haines Index........4 low.
Ventilation Index...40 poor.

.SUNDAY...

Sky/weather.........Mostly sunny.
Max temperature.....64 to 72.
Min humidity........22 to 27 percent.
CWR.................0 percent.
LAL.................1.
Wind - 20 foot......Southwest 7 to 13 mph. Gusts up to 24 mph in
                    the afternoon.
Mixing height.......6000 ft AGL.
Transport winds.....West around 25 mph.
Haines Index........4 low.
Ventilation Index...1500 excellent.

$$
Forecaster...Adams
Requested by...Tom Stephens
Type of request...WILDFIRE
.TAG 2422946.5/BOI
.DELDT 09/27/24
.FormatterVersion 2.0.0
.EMAIL Thomas.Stephens.ENVS@gmail.com