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000
FNUS75 KBOI 200216
FWSBOI

Spot Forecast for Cold Rx...Payette NF
National Weather Service Boise ID
816 PM MDT Fri Apr 19 2024

Forecast is based on ignition time of 2000 MDT on April 19.
If conditions become unrepresentative...contact the National Weather
Service.

...DRY AND MILD SATURDAY...
...DRY COLD FRONTAL PASSAGE ON SUNDAY...

.DISCUSSION...
High pressure will bring southerly winds and mild temperatures to the
burn site on Saturday. Clouds could thicken in the afternoon as a
low pressure system moves in to the Pacific Northwest. The low will
bring a dry cold front through the west-central Idaho mountains on
Sunday. The front will usher in northwest winds and cooler and
cloudier conditions.


.SATURDAY...

Sky/weather.........Partly sunny.
Max temperature.....58 to 63.
Min humidity........27 to 32 percent.
CWR /0.10 inch/.....0 percent.
LAL.................1.
Wind - eye level....East around 4 mph in the morning, shifting to
                    southwest around 6 mph with gusts to 11 mph in
                    the afternoon.
Mixing height.......4500 ft AGL.
Transport winds.....South around 15 mph.
Haines Index........2 very low.
Ventilation index...675 good.

.SATURDAY NIGHT...

Sky/weather.........Partly cloudy in the evening, then becoming
                    mostly cloudy after midnight.
Min temperature.....36 to 41.
Max humidity........73 to 78 percent.
CWR /0.10 inch/.....0 percent.
LAL.................1.
Wind - eye level....Southwest 3 to 5 mph with gusts to around 8 mph
                    in the evening, shifting to north around 4 mph
                    after midnight.
Mixing height.......200 ft AGL.
Transport winds.....East around 5 mph.
Haines Index........2 very low.
Ventilation index...10 poor.

$$
Forecaster...Groenert
Requested by...Jonathan Miller
Type of request...PRESCRIBED
.TAG 2411217.3/BOI
.DELDT 04/19/24
.FormatterVersion 2.0.0
.EMAIL brian.gillespie@usda.gov,jonathan.miller@usda.gov,will.woods@usda.gov