Suppression Forecast
Issued by NWS Billings, MT

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000
FNUS75 KBYZ 072326
FWSBYZ

Spot Forecast for I-90 MM 529...Billings Dispatch
National Weather Service Billings MT
526 PM MDT Fri May 7 2021

Forecast is based on forecast start time of 1800 MDT on May 07.
If conditions become unrepresentative...contact the National Weather
Service.

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

.DISCUSSION...

Showers and thunderstorms will increase this evening along with
east winds shifting to northwest winds around 9 PM with the
passage of a cold front. Winds will increase with this wind shift
with gusts to 40 mph. Winds will decrease slightly after 3 AM. The
chance of rain decrease tomorrow afternoon. Breezy winds will
continue into Saturday before decreasing Saturday night.
Carrothers

.TONIGHT...

Sky/weather.........Mostly cloudy. Chance of rain showers and
                    slight chance of thunderstorms in the evening,
                    then rain likely overnight.
CWR.................50 percent.
LAL.................2...1 to 8 strikes/15 min/cell.
Min temperature.....40-44.
Max humidity........87-91 percent.
Wind (20 ft)........
 Slope/valley.......East winds 10 to 15 mph shifting to the
                    northwest 25 to 30 mph by 9 PM. Winds will
gust to 40 mph. Winds will decrease around
3 AM to 15 to 20 mph with gusts to 30 mph.
Gusty and erratic winds expected near
thunderstorms in the evening.
 Ridgetop...........Northwest around 25 mph.
Mixing height.......1800 ft AGL.
Transport winds.....West around 15 mph.

.SATURDAY...

Sky/weather.........Cloudy then becoming partly sunny. Chance of
                    rain in the morning, then slight chance of rain
                    in the afternoon.
CWR.................16 percent.
LAL.................1...no thunderstorms.
Max temperature.....53-58.
Min humidity........36-40 percent.
Wind (20 ft)........
 Slope/valley.......Northwest winds 15 to 20 mph with gusts to 30 mph.
 Ridgetop...........Northwest around 25 mph.
Mixing height.......9300 ft AGL.
Transport winds.....Northwest around 25 mph.
Haines index........2.

.SATURDAY NIGHT...

Sky/weather.........Mostly cloudy. Slight chance of rain in the
                    evening, then chance of rain overnight.
CWR.................20 percent.
LAL.................1...no thunderstorms.
Min temperature.....32-36.
Max humidity........79-85 percent.
Wind (20 ft)........
 Slope/valley.......West winds 15 to 20 mph shifting to west
winds of 5 to 10 mph. Winds could gust to
25 mph in the evening.
 Ridgetop...........Northwest around 20 mph.
Mixing height.......500 ft AGL.
Transport winds.....West around 16 mph.

.SUNDAY...

Sky/weather.........Mostly cloudy. Chance of rain and snow in the
                    morning, then chance of rain showers and slight
                    chance of thunderstorms in the afternoon.
CWR.................30 percent.
LAL.................2...1 to 8 strikes/15 min/cell.
Max temperature.....49-53.
Min humidity........43-48 percent.
Wind (20 ft)........
 Slope/valley.......West winds 5 to 10 mph shifting to the
                    northwest 10 to 15 mph in the afternoon. Gusty
                    and erratic winds expected near thunderstorms
                    in the afternoon.
 Ridgetop...........Northwest around 10 mph.
Mixing height.......7900 ft AGL.
Transport winds.....Northwest around 10 mph.
Haines index........3.

$$
Forecaster...Carrothers/Setzenfand
Requested by...Laura Rasmussen
Type of request...WILDFIRE
.TAG 2111937.0/BYZ
.DELDT 05/07/21
.FormatterVersion 2.0.0
.EMAIL lrasmuss@blm.gov


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