492
FNUS75 KBOI 171031
FWSBOI

Spot Forecast for Avelene RX...USFS
National Weather Service Boise ID
431 AM MDT Fri May 17 2024

Forecast is based on ignition time of 0500 MDT on May 17.
If conditions become unrepresentative...contact the National Weather
Service.

...COLD FRONT TODAY WILL BRING GUSTY NORTHWEST WINDS AND COOLER TEMPS...
...CALMER WINDS, SLIGHTLY WARMER SATURDAY...

.DISCUSSION...
A notable cold front this morning will increase wind speeds from the
northwest. While gusts may begin as early as 0900-1000L, peak gust potential
is expected 1200-1700L. Higher ridges surrounding the burn area could see
gusts around 30 mph at times today. Conditions will be significantly cooler
and slightly drier today compared to Thursday due to the front. Warmer, with
calmer southwesterly surface winds expected Saturday, then the next cold front
arrives late Saturday night with a period of breezy northwest winds expected
overnight/early Sunday morning. Much cooler temperatures Sunday compared to
Saturday, with higher humidity values returning.

.TODAY (FRIDAY)...

Sky/weather.........Partly cloudy this morning, then sunny.
Max temperature.....60 to 65. Colder.
Min humidity........19 to 24 percent. Drier.
CWR /0.10 inch/.....0 percent.
LAL.................1.
Wind - eye level....North or variable 3 to 5 mph in the morning.
                    Beginning around 0900-1000L, increasing to northwest
                    8 to 13 mph with gusts to around 20-25 mph on the
                    ridge and exposed areas with passing cold front.
Mixing height.......6500 ft AGL.
Transport winds.....Northwest around 25 mph.
Haines Index........3 very low.
Ventilation index...1625 excellent.

.TONIGHT (FRIDAY NIGHT)...

Sky/weather.........Clear.
Min temperature.....32 to 37. Colder.
Max humidity........52 to 57 percent. Drier.
CWR /0.10 inch/.....0 percent.
LAL.................1.
Wind - eye level....Northwest 5 to 8 mph with gusts to around 16
                    mph in the early evening, becoming north 3 to 5
                    mph after sunset.
Mixing height.......400 ft AGL.
Transport winds.....North around 5 mph.
Haines Index........3 very low.
Ventilation index...20 poor.

.SATURDAY...

Sky/weather.........Mostly sunny, becoming partly cloudy.
Max temperature.....65 to 70. Warmer.
Min humidity........18 to 24 percent.
CWR /0.10 inch/.....0 percent.
LAL.................1.
Wind - eye level....Variable 2 to 4 mph in the morning, becoming
                    south or southwest 3 to 6 mph around 1000L.
Mixing height.......6500 ft AGL.
Transport winds.....West around 15 mph.
Haines Index........3 very low.
Ventilation index...975 excellent.

$$
Forecaster...Henry
Requested by...Gordon Wells
Type of request...PRESCRIBED
.TAG 2413826.5/BOI
.DELDT 05/17/24
.FormatterVersion 2.0.0
.EMAIL gordon.wells@usda.gov