Spot Forecast
Issued by NWS Denver/Boulder, CO
Issued by NWS Denver/Boulder, CO
580
FNUS75 KBOU 201109
FWSBOU
Spot Forecast for Twin Owl...NPS
National Weather Service Denver/Boulder CO
509 AM MDT Wed Aug 20 2025
If conditions become unrepresentative...contact the National Weather
Service.
.DISCUSSION... Today will be warm and dry with a minimum relative
humidity between 20-25 percent. Light westerly winds will shift to
the east during the day and will have sustained speeds around 10
mph. No showers or storms are expected.
Humidity recovery tonight will be poor with max humidity around 60
percent. Thursday will be the warmest and driest day before cooler
weather arrives Friday.
.REST OF TODAY...
Sky/weather.........Mostly sunny (15-25 percent) until 1500, then partly
cloudy (30-40 percent).
CWR.................3 percent.
Chance of thunder...9 percent.
Max temperature.....Around 80.
Min humidity........24 percent.
Wind (20 ft)........West winds around 5 mph until 0700, then
variable up to 5 mph until 1000, then east 5 to
12 mph.
Mixing height.......2200 ft AGL until 1000. 8600 ft AGL after 1100.
Transport winds.....Southwest 8 to 11 mph until 0800, then around 8
mph until 1000, then light until 1200, then
northeast 8 to 12 mph until 1600, then east
around 9 mph until 1700, then south around 8
mph.
Smoke dispersal.....Poor until 1100, then fair until 1200, then
good until 1700, then fair.
TIME (MDT) 5AM 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........6 8 10 5 3 5 10 14 19 25 30 34 35
Weather cov.....
Weather type....
Tstm cov........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0 0
Chc of thdr (%).0 0 0 0 0 0 0 10 10 10 10 10 10
Temp............53 52 57 62 68 76 77 79 80 80 80 78 78
RH..............64 63 53 46 37 25 24 25 25 24 24 25 25
20 FT wind dir..W W W W SE SE E E E E E SE SE
20 FT wind spd..3 3 2 2 2 5 7 9 9 9 9 8 8
20 FT wind gust.6 6 3 3 3 7 12 15 15 15 15 13 13
Mix hgt (kft)...1.1 1.1 1.1 1.1 2.2 4.3 7.0 7.9 8.4 9.1 9.4 8.5 7.1
Transp wind dir.SW SW W W SW SW N NE NE E E E S
Transp wind spd.8 8 8 6 5 6 7 9 9 9 9 9 8
Vrate kt-ft/1K..8 8 8 6 9 21 42 63 67 73 75 68 49
SmokeDispersion.P P P P P P F G G G G G F
.TONIGHT...
Sky/weather.........Mostly clear (15-25 percent).
CWR.................0 percent.
Chance of thunder...1 percent.
Min temperature.....Around 51.
Max humidity........57 percent.
Wind (20 ft)........Southeast winds around 7 mph until 1900, then 5
to 7 mph until 2100, then variable up to 5 mph
until 2200, then west 5 to 6 mph.
Mixing height.......5300 ft AGL until 1900, then 1100 ft AGL.
Transport winds.....Southeast 8 to 11 mph until 2200, then light
until 2400, then west 8 to 12 mph.
Smoke dispersal.....Fair until 1900, then poor.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........28 28 14 20 19 16 12 11 10 9 9 9
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............78 76 71 66 63 60 58 57 56 54 53 53
RH..............25 27 32 40 44 51 55 55 55 57 57 54
20 FT wind dir..SE SE SE E W W W W W W W W
20 FT wind spd..7 6 5 3 3 3 5 5 5 5 6 6
20 FT wind gust.12 9 7 6 6 6 7 7 7 7 9 9
Mix hgt (kft)...5.3 2.4 1.2 1.1 1.0 1.1 1.1 1.1 1.1 1.1 1.1 1.1
Transp wind dir.SE SE SE SE SE S SW SW W W W W
Transp wind spd.9 8 8 8 7 5 6 7 9 12 12 10
Vrate kt-ft/1K..43 17 8 8 6 4 5 7 9 11 11 10
SmokeDispersion.F P P P P P P P P P P P
$$
Forecaster...Danielson
Requested by...Nathan Hallam
Type of request...WILDFIRE
.TAG 2520103.3/BOU
.DELDT 08/20/25
.FormatterVersion 2.0.0
.EMAIL kevin_riggs@nps.gov,nathan_hallam@nps.gov