768
FNUS75 KBOU 170238
FWSBOU

Spot Forecast for Switzerland Fire...Boulder County Sheriffs Office
National Weather Service Denver/Boulder CO
838 PM MDT Thu Oct 16 2025

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

.DISCUSSION...Winds are expected to continue to come from the
west overnight and into tomorrow. Gusts up to 25 mph possible now
through 1-2 AM. After that, generally light westerly winds up to
10 mph at times should prevail. Overnight RH values will be
between 50-65%, with drier conditions (28-35% RH) tomorrow.
Temperatures will stay in the 30s through 9 AM. No precipitation
is expected tonight or tomorrow.


.REST OF TONIGHT...

Sky/weather.........Mostly clear (5-15 percent).
CWR.................1 percent.
Chance of thunder...0 percent.
Min temperature.....Around 33.
Max humidity........66 percent.
Wind (20 ft)........West winds 8 to 13 mph. Gusts up to 21 mph late
                    in the evening.
Mixing height.......1100 ft AGL.
Transport winds.....West 20 to 28 mph until 0200, then 17 to 22
                    mph.
Smoke dispersal.....Poor.

TIME (MDT)      8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........9   10  8   7   9   7   7   7   7   7
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0
Chc of thdr (%).0   0   0   0   0   0   0   0   0   0
Temp............39  38  37  37  36  36  35  34  34  34
RH..............52  57  56  59  61  61  64  66  66  66
20 FT wind dir..W   W   W   W   W   W   W   W   W   W
20 FT wind spd..12  13  13  12  9   9   8   8   8   8
20 FT wind gust.18  21  21  18  15  15  13  13  10  10
Mix hgt (kft)...1.4 1.5 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.1
Transp wind dir.W   W   W   W   W   W   W   W   W   W
Transp wind spd.22  28  26  24  20  20  18  20  20  21
Vrate kt-ft/1K..27  36  26  23  19  18  18  18  18  19
SmokeDispersion.P   P   P   P   P   P   P   P   P   P

.FRIDAY...

Sky/weather.........Mostly sunny (5-15 percent).
CWR.................0 percent.
Chance of thunder...0 percent.
Max temperature.....Around 54.
Min humidity........32 percent.
Wind (20 ft)........West winds 7 to 12 mph.
Mixing height.......2700 ft AGL until 1200, then 5400 ft AGL.
Transport winds.....West 16 to 21 mph.
Smoke dispersal.....Poor until 1100, then fair until 1200, then
                    good.

TIME (MDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........6   9   11  9   8   8   9   9   11  8   6   7
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Chc of thdr (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............34  33  36  40  46  49  51  52  53  52  51  50
RH..............66  66  61  52  42  37  33  33  32  35  35  37
20 FT wind dir..W   W   W   W   W   W   W   W   W   W   W   W
20 FT wind spd..8   9   9   9   9   10  9   9   10  9   9   8
20 FT wind gust.10  10  10  11  10  10  10  10  10  11  10  9
Mix hgt (kft)...1.1 1.1 1.1 1.7 2.2 3.1 4.4 5.3 6.0 5.9 5.4 3.9
Transp wind dir.W   W   W   W   W   W   W   W   W   W   W   W
Transp wind spd.20  20  20  21  20  18  18  18  16  17  20  18
Vrate kt-ft/1K..18  18  19  31  38  49  70  85  84  88  93  62
SmokeDispersion.P   P   P   P   P   F   G   G   G   G   G   G

$$
Forecaster...Ideker
Requested by...1837
Type of request...WILDFIRE
.TAG 2523795.0/BOU
.DELDT 10/16/25
.FormatterVersion 2.0.0
.EMAIL awsmith@bouldercounty.gov