779
FNUS75 KBOI 180851
FWSBOI

Spot Forecast for Avelene RX...USFS
National Weather Service Boise ID
251 AM MDT Sat May 18 2024

Forecast is based on ignition time of 0500 MDT on May 18.
If conditions become unrepresentative...contact the National Weather
Service.

...CALMER, DRY, AND SLIGHTLY WARMER TODAY...
...COLD FRONT OVERNIGHT WITH AN INCREASE IN NORTHWEST WINDS SUNDAY...

.DISCUSSION...
Light winds and warmer conditions today. Surface winds will vary
from southeast to southwest this afternoon. Winds will shift
to the northwest tonight as a cold front approaches. A period of
increased wind speeds will arrive overnight with the front, reaching
the west and north aspects approximately Saturday 2300L to
Sunday 0300L. Northwest winds will increase again late Sunday morning
through afternoon in the wake of the front. Expect a temperature drop
of around 10 degrees with higher humidity, compared to Saturday.


.TODAY (SATURDAY)...

Sky/weather.........Mostly sunny, becoming partly cloudy this
                    afternoon.
Max temperature.....65 to 70. Warmer.
Min humidity........18 to 23 percent.
CWR /0.10 inch/.....0 percent.
LAL.................1.
Wind - eye level....Variable less than 3 mph in the morning. Becoming
                    southeast to southwest 3 to 5 mph after Sat 0900L.
Mixing height.......7000 ft AGL.
Transport winds.....West around 15 mph.
Haines Index........3 very low.
Ventilation index...1050 excellent.


.TONIGHT (SATURDAY NIGHT)...

Sky/weather.........Partly cloudy.
Min temperature.....35 to 40. Warmer.
Max humidity........59 to 65 percent. Higher.
CWR /0.10 inch/.....0 percent.
LAL.................1.
Wind - eye level....Northwest or variable 2 to 4 mph after Sat 1800L.
                    Northwest winds will increase on the north and
                    west aspects to 5 to 8 mph. Occasional gusts on ridge
                    tops to around 12 mph between Sat 2300L and Sun 0300L.
Mixing height.......500 ft AGL.
Transport winds.....Northwest around 5 mph.
Haines Index........3 very low.
Ventilation index...25 poor.

$$
Forecaster...Henry
Requested by...Gordon Wells
Type of request...PRESCRIBED
.TAG 2413826.6/BOI
.DELDT 05/18/24
.FormatterVersion 2.0.0
.EMAIL gordon.wells@usda.gov