508
FNUS75 KTFX 082340
FWSTFX

Spot Forecast for CAT Camp 2024...DNRC
National Weather Service Great Falls MT
540 PM MDT Sat Jun 8 2024

Forecast is based on ignition time of 1800 MDT on June 08.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...
A high pressure ridge will continue mostly clear to partly cloudy
skies over the area through Sunday morning. Temperatures will remain
slightly above normal with moderate overnight humidity recovery.
Gusty northerly winds will decrease and shift more easterly overnight
and more southeasterly during the day on Sunday ahead of a cold front.
This cold front will also bring an increasing chance of showers and
thunderstorms for Sunday afternoon and evening. The main threat from
the thunderstorms will be erratic wind gusts up to 40 mph, but brief
heavy downpours are also possible. Winds will shift more westerly
behind the frontal passage Sunday evening, and the showers and storms
should decrease after midnight.

.TONIGHT...

Sky/weather.........Partly cloudy (25-35 percent).
CWR.................0 percent.
LAL.................1.
Min temperature.....44-49.
Max humidity........62-67 percent.
Wind (20 ft)........
 Slope/valley.......North winds 10 to 15 mph with gusts to 30 mph
                    through around 2100 MDT, then shifting to the
                    northeast at 5 to 15 mph.
Mixing height.......500 ft AGL.
Transport winds.....North around 20 mph.
Haines Index........

.SUNDAY...

Sky/weather.........Mostly sunny (40-50 percent). Chance of rain
                    showers and slight chance of thunderstorms in
                    the afternoon.
CWR.................5 percent.
LAL.................1 until 1200, then 2.
Max temperature.....72-77.
Min humidity........32-37 percent.
Wind (20 ft)........
 Slope/valley.......Northeast winds 5 to 10 mph until 0900 MDT,
                    then shifting shifting to the southeast at 10
                    to 20 mph through 1500 MDT. Gusty and erratic
                    winds expected near thunderstorms in the
                    afternoon.
Mixing height.......3500 ft AGL.
Transport winds.....North around 15 mph.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.SUNDAY NIGHT...

Sky/weather.........Mostly cloudy (75-85 percent). Rain showers
                    likely through the night. Chance of
                    thunderstorms in the evening, then slight
                    chance of thunderstorms overnight.
CWR.................30 percent.
LAL.................3 until 2100, then 2.
Min temperature.....49-54.
Max humidity........83-88 percent.
Wind (20 ft)........
 Slope/valley.......Variable winds 5 to 10 mph shifting to the west
                    at 10 to 15 mph around and after midnight. Gusty
                    and erratic winds expected near thunderstorms.
Mixing height.......500 ft AGL.
Transport winds.....West around 10 mph.
Haines Index........

$$
Forecaster...Coulston
Requested by...Doug Dodge
Type of request...PRESCRIBED
.TAG 2415834.0/TFX
.DELDT 06/08/24
.FormatterVersion 2.0.0
.EMAIL ddodge@jeffersoncounty-mt.gov, tfx.ops@noaa.gov