194
FNUS75 KRIW 231958
FWSRIW

Spot Forecast for Horse...WYBTF
National Weather Service Riverton WY
158 PM MDT Mon Jun 23 2025

Forecast is based on forecast start time of 0700 MDT on June 24.
If conditions become unrepresentative, contact the National Weather
Service

.DISCUSSION...

Light downslope/downvalley winds overnight become southerly around
8 mph by about 0800L. Winds increase starting about 1000L, with
speeds around 10 mph through Tuesday afternoon and gusts 15 to 20 mph.
Winds shift to be from the west around 1500L. Increased moisture brings
a 25% chance for a shower or thunderstorm between 1200 and 1700L. The
warming trend is still expected through the rest of the week, with
little chance for rain.

...Thunderstorms imply strong gusty and erratic winds...

.TUESDAY...

Sky/weather.........Partly sunny (55-65 percent). Isolated showers
                    and thunderstorms in the afternoon.
CWR.................5 percent.
Chance of pcpn......25 percent.
Chance of thunder...20 percent.
Max temperature.....60-64.
Min humidity........31-35 percent.
Wind (20 ft)........Light south winds until 1000, increasing to
                    around 10 mph, with gusts 15 to 20 mph after 1000,
                    then west around 10 mph after 1400 with gusts 15
                    to 20 mph. Gusty and erratic winds possible
                    near thunderstorms between 1200 and 1700.
Ridgetop wind.......South 10 to 15 mph until 1700, then west.
Mixing height.......1000 ft AGL until 0900. 10000 ft AGL after
                    1200.
Transport winds.....South 10 to 18 mph until 1700, then southwest
                    15 to 20 mph.
Smoke dispersal.....Poor until 0900, increasing to excellent in the
                    afternoon after 1200.

.TUESDAY NIGHT...

Sky/weather.........Mostly clear (20-30 percent).
CWR.................0 percent.
Chance of pcpn......5 percent.
Chance of thunder...5 percent.
Min temperature.....39-43.
Max humidity........59-63 percent.
Wind (20 ft)........West-northwest winds around 10 mph with gusts to
                    around 15 mph until 2100, west-northwest around
                    7 mph.
Ridgetop wind.......West 10 to 15 mph.
Mixing height.......8000 ft AGL until 1900. 500 ft AGL after 2000.
Transport winds.....West around 15 mph until 2100, then northwest
                    around 10 mph.
Smoke dispersal.....Very good until 1900. Poor after 2100.

.WEDNESDAY...

Sky/weather.........Sunny (10-20 percent).
CWR.................0 percent.
Chance of pcpn......10 percent.
Chance of thunder...8 percent.
Max temperature.....63-67.
Min humidity........22-26 percent.
Wind (20 ft)........Light west winds until 1000, increasing to around
                    10 mph with gusts to around 20 mph through the afternoon.
Ridgetop wind.......Light winds until 0900, then west 10 to 15 mph.
Mixing height.......2000 ft AGL until 0800. 9500 ft AGL after 1200.
Transport winds.....West 10 to 15 mph.
Smoke dispersal.....Poor until 0800. Very good after 1400.

.FORECAST DAYS 3 THROUGH 5...
.THURSDAY...
Mostly clear. Lows in the mid 40s. Highs in the upper 60s.
Southwest winds around 12 mph in the afternoon with gusts 20 to 25 mph.
Afternoon minimum RHs around 25 percent.
.FRIDAY...
Partly cloudy. Lows in the upper 40s. Highs in the lower 70s.
West-southwest winds around 15 mph in the afternoon with gusts 25 to 30 mph.
Afternoon minimum RHs around 24 percent.
.SATURDAY...
Mostly clear. Lows in the upper 40s. Highs around 70.
West winds around 15 mph in the afternoon with gusts 25 to 30 mph.
Afternoon minimum RHs around 25 percent.

$$
Forecaster...Wittmann
Requested by...Anna Sammer, PSC3
Type of request...WILDFIRE
.TAG 2515958.11/RIW
.DELDT 06/23/25
.FormatterVersion 2.0.0
.EMAIL anna_sammer@firenet.gov