339
FNUS75 KBOU 121428
FWSBOU

Spot Forecast for TRR Monitoring 10/12...National Park Service
National Weather Service Denver/Boulder CO
828 AM MDT Sun Oct 12 2025

If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...Snow showers will continue for the next few hours but
should end by 11 am.  Winds will be west 20 to 35 mph with gusts
to 50 mph.  Areas of blowing snow through 11 am.

Tonight will be mostly clear with decreasing wind.  Lows will be
around 20. On Monday it will become mostly cloudy with a chance of
snow showers after 1200.

.REST OF TODAY...

Sky/weather.........Mostly cloudy (65-75 percent) until 1100, then
                    partly cloudy (30-40 percent). Areas of blowing
                    snow until 1100. Chance of snow showers until
                    1100.

Chance of pcpn......50 percent.
Max temperature.....Around 35.
Min humidity........41 percent.
Surface winds (mph).Breezy. West winds 20 to 35 mph until 1600,
                    then 15 to 25 mph. Gusts up to 50 mph.
Snowfall amount.....0.5 inches.

TIME (MDT)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........84  61  60  36  23  18  7   9   9
Weather cov.....CHC CHC SCH
Weather type....SW  SW  SW
Tstm cov........
Chc of pcpn (%).50  40  20  10  10  10  10  10  10
Temp............30  33  31  32  32  32  34  32  31
RH..............69  56  58  53  51  49  43  45  47
Surface wnd dir.W   W   W   W   W   W   W   W   W
Surface wnd spd.28  29  29  25  24  24  22  20  18
Surface wnd gst.44  46  46  40  39  39  35  31  30

.TONIGHT...

Sky/weather.........Mostly clear (15-25 percent).
Chance of pcpn......10 percent.
Min temperature.....Around 20.
Max humidity........84 percent.
Surface winds (mph).West winds around 14 mph until 1900. Southeast
                    12 to 17 mph after 2400. Gusts up to 24 mph.
Snowfall amount.....0.0 inches.

TIME (MDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........16  16  16  17  19  23  27  25  21  19  21  21
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).10  10  10  10  10  10  10  10  10  10  10  10
Temp............34  31  28  25  23  22  22  21  20  20  20  21
RH..............41  51  60  68  74  77  77  81  84  84  84  77
Surface wnd dir.W   SW  SW  S   S   S   SE  SE  SE  SE  SE  SE
Surface wnd spd.14  13  13  13  14  14  15  14  14  14  14  14
Surface wnd gst.22  21  21  21  22  22  24  22  22  22  22  22

.COLUMBUS DAY...

Sky/weather.........Partly cloudy (25-35 percent) until 0900, then
                    mostly cloudy (45-55 percent) until 1000, then
                    partly cloudy (40-50 percent) until 1200, then
                    mostly cloudy (55-65 percent). Chance of snow
                    showers after 1200.
Chance of pcpn......30 percent.
Max temperature.....Around 40.
Min humidity........48 percent.
Surface winds (mph).South winds around 14 mph until 0700, then
                    southeast 12 to 17 mph with gusts to around 21
                    mph until 0900, then southeast 12 to 17 mph
                    with gusts to around 22 mph until 1700, then
                    east around 13 mph with gusts to around 21 mph.
Snowfall amount.....0.4 inches.

TIME (MDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........26  34  37  51  42  49  57  60  64  67  67  67
Weather cov.....                        CHC CHC CHC CHC CHC CHC
Weather type....                        SW  SW  SW  SW  SW  SW
Tstm cov........
Chc of pcpn (%).10  10  10  10  10  10  30  30  30  30  30  30
Temp............22  23  24  27  30  34  37  39  40  40  39  36
RH..............74  71  68  60  58  54  50  48  48  50  52  59
Surface wnd dir.S   E   SE  SE  SE  SE  SE  SE  SE  SE  SE  E
Surface wnd spd.14  14  14  14  14  14  14  14  14  14  14  13
Surface wnd gst.18  20  21  21  21  21  21  21  22  22  21  21

$$
Forecaster...RPK
Requested by...Caleb Waters
Type of request...OTHER
.TAG 2523462.0/BOU
.DELDT 10/12/25
.FormatterVersion 2.0.0
.EMAIL caleb_waters@nps.gov