Spot Forecast
Issued by NWS Billings, MT

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2
000
FNUS75 KBYZ 211148
FWSBYZ

Spot Forecast for Big Willow Unit 1...US-FS
National Weather Service Billings MT
548 AM MDT Thu Mar 21 2024

Forecast is based on ignition time of 0900 MDT on March 21.
If conditions become unrepresentative...contact the National Weather
Service.

Please contact our office if you have questions
or concerns with this forecast.

.DISCUSSION...
The chance of snow will be increasing through the day with snow
likely (70%) by afternoon. Snow will linger tonight into Friday
morning, before becoming just a slight chance (20%) of snow by
Friday afternoon. Temperatures will be in the lower to mid 40s
today, with colder temperatures (mid to upper 30s) on Friday.
Winds will be west to southwest today with some gusts near 25 mph.
Winds will be west to northwest tonight with gusts near 25 mph.
Lighter winds are expected on Friday.


.TODAY...

Sky/weather.........Partly sunny. Slight chance of snow late in the
                    morning, then snow, slight chance of rain and
                    snow in the afternoon.
CWR.................59 percent.
LAL.................1...no thunderstorms.
Max temperature.....40-45.
Min humidity........45-50 percent.
Wind (20 ft)........
 Slope/valley.......West to southwest winds 8 to 16 mph with gusts
                    to around 24 mph.
 Ridgetop...........West around 25 mph.
Mixing height.......Around 500 ft AGL early in the morning increasing
                    to around 3200 ft AGL in the afternoon.
Transport winds.....West around 20 mph.
Smoke dispersal.....Poor (14000 knot-ft) early in the morning
                    increasing to very good (117500 knot-ft) in the
                    afternoon.
Haines index........3.

.TONIGHT...

Sky/weather.........Mostly cloudy. Snow likely in the evening, then
                    chance of snow overnight.
CWR.................15 percent.
LAL.................1...no thunderstorms.
Min temperature.....20-25.
Max humidity........87-92 percent.
Wind (20 ft)........
 Slope/valley.......West to northwest winds 8 to 16 mph with gusts
                    to around 24 mph.
 Ridgetop...........Northwest around 25 mph.
Mixing height.......Around 3200 ft AGL early in the evening decreasing
                    to around 500 ft AGL overnight.
Transport winds.....West around 20 mph.
Smoke dispersal.....Fair (49100 knot-ft) early in the evening
                    decreasing to poor (14000 knot-ft) late in the
                    night.

.FRIDAY...

Sky/weather.........Mostly cloudy. Snow likely in the morning, then
                    slight chance of snow in the afternoon.
CWR.................8 percent.
LAL.................1...no thunderstorms.
Max temperature.....34-39.
Min humidity........50-55 percent.
Wind (20 ft)........
 Slope/valley.......West to southwest winds 6 to 14 mph.
 Ridgetop...........West around 15 mph.
Mixing height.......Around 500 ft AGL early in the morning increasing
                    to 3000 ft AGL in the afternoon.
Transport winds.....West around 15 mph.
Smoke dispersal.....Poor (13600 knot-ft) early in the morning
                    increasing to fair (47000 knot-ft) in the
                    afternoon.
Haines index........2.

$$
Forecaster...Humphrey
Requested by...Joel Cooper
Type of request...PRESCRIBED
.TAG 2407936.0/BYZ
.DELDT 03/21/24
.FormatterVersion 2.0.0
.EMAIL joel.cooper@usda.gov


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.