901
FNUS75 KBOI 221034
FWSBOI

Spot Forecast for Morse South /SWIFT Live Fire Exercise...US Forest Service
National Weather Service Boise ID
434 AM MDT Wed May 22 2024

Forecast is based on ignition time of 0600 MDT on May 22.
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.

...SHOWERS, ISOLATED THUNDERSTORMS, AND BREEZY WINDS TODAY...

.DISCUSSION...
Steady rain will transition into showers late this morning, with
thunderstorms possible after 0900L. While showers decrease in
frequency this afternoon at the spot, snow levels lower to around
4500-5000 ft MSL by this afternoon/evening. Therefore, this location
could see a mix of rain and snow as the showers taper. Precipitation
totals (liquid equivalent) are forecast to be 0.40 to 0.60 inches.
Low forecast confidence in minimum humidity today due to on-and-
off shower activity. Winds will be breezy, with the potential to see
up to 25-35 mph on exposed ridges. Drier, calmer, and warmer
on Thursday.


.TODAY (WEDNESDAY)...

Sky/weather.........Rain showers and isolated thunderstorms
                    through this evening. Snow levels 7000 feet MSL
                    this morning, lowering to 4500-5000 feet MSL
                    this evening.
                    Chance of precipitation near 100 percent through
                    this afternoon, decreasing to 35 percent this eve.
Max temperature.....46 to 52. Colder.
Min humidity........49 to 56 percent. Higher.
CWR.................90 percent.
LAL.................2 in the morning increasing to 3 in the
                    afternoon.
Wind - 20 foot......West to southwest 4 to 6 mph, increasing to
                    7 to 10 mph with gusts near 18 mph by 1200L.
                    Then, west to northwest 8 to 11 mph with gusts
                    near 22 mph beginning around 1500L.
                    Gusty and erratic winds expected near thunderstorms.
Mixing height.......6000 ft AGL.
Transport winds.....West around 20 mph.
Haines Index........2 very low.
Ventilation Index...1200 excellent.

$$
Forecaster...Henry
Requested by...Laura Congleton
Type of request...PRESCRIBED
.TAG 2414852.0/BOI
.DELDT 05/22/24
.FormatterVersion 2.0.0
.EMAIL Laura.Congleton@usda.gov