242
FNUS75 KBOI 162214
FWSBOI

Spot Forecast for High Valley RX...USDA
National Weather Service Boise ID
414 PM MDT Thu May 16 2024

Forecast is based on ignition time of 0600 MDT on May 17.
If conditions become unrepresentative...contact the National Weather
Service.

...COLD FRONT PASSING THIS AFTERNOON, WINDIER AGAIN TOMORROW...

.DISCUSSION...
A cold front has arrived this afternoon, turning winds more out of
the north and increasing windspeeds. Winds will remain strong
through around 10 pm before calming down to NW at 5-10 mph overnight.
Winds will increase again early tomorrow morning between 7 and 9 AM MDT.
After staying NW through the morning and into the afternoon, the wind
will shift to NNW between 4 and 6 PM MDT. Winds will finally weaken
around 10 PM MDT Friday evening and be light downslope the remainder
of the night.

.FRIDAY...

Sky/weather.........Partly sunny in the morning then clearing.
Max temperature.....53 to 58.
Min humidity........22 to 27 percent.
CWR /0.10 inch/.....0 percent.
LAL.................1.
Wind - eye level....Northwest 5 to 10 mph with gusts to around 18 mph
                    beginning between 7 and 9 AM MDT, becoming NNW
                    at the same speed between 4 and 6 PM MDT.
Mixing height.......6500 ft AGL.
Transport winds.....Northwest around 25 mph.
Haines Index........2 very low.
Ventilation index...1625 excellent.

.FRIDAY NIGHT...

Sky/weather.........Mostly clear.
Min temperature.....32 to 37.
Max humidity........44 to 51 percent.
CWR /0.10 inch/.....0 percent.
LAL.................1.
Wind - eye level....Northwest 4 to 8 mph with gusts to around 16
                    mph in the evening, shifting to downslope
                    around 3 mph around midnight.
Mixing height.......100 ft AGL.
Transport winds.....Southeast around 5 mph.
Haines Index........3 very low.
Ventilation index...5 poor.

.SATURDAY...

Sky/weather.........Sunny.
Max temperature.....58 to 63.
Min humidity........23 to 28 percent.
CWR /0.10 inch/.....0 percent.
LAL.................1.
Wind - eye level....Southwest 3 to 5 mph. Gusts up to 14 mph in the
                    afternoon.
Mixing height.......6000 ft AGL.
Transport winds.....West around 10 mph.
Haines Index........3 very low.
Ventilation index...600 good.

$$
Forecaster...Parker
Requested by...William Sanders
Type of request...PRESCRIBED
.TAG 2413523.2/BOI
.DELDT 05/17/24
.FormatterVersion 2.0.0
.EMAIL william.sanders2@usda.gov