Spot Forecast
Issued by NWS Denver/Boulder, CO
Issued by NWS Denver/Boulder, CO
182
FNUS75 KBOU 271134
FWSBOU
Spot Forecast for Harris Park RX...USFS
National Weather Service Denver/Boulder CO
534 AM MDT Fri Sep 27 2024
If conditions become unrepresentative...contact the National Weather
Service.
.DISCUSSION...Warm and dry weather is expected through this
weekend and much of next week. There is some uncertainty on the
timing of a cold front on Monday that could provide upslope winds
and decrease mixing Monday afternoon. Tuesday looks dry and only
slightly cooler with a bit more wind aloft, then winds will likely
be a bit stronger at the surface on Wednesday.
It currently looks like transport winds will be about 10 mph on
Monday, then 15-20 mph on Tuesday and Wednesday. Smoke dispersal
should be good each afternoon, and very good on Tuesday afternoon
and possibly Wednesday with a few more hours of good dispersal in
the late mornings those two days. There is some potential (20-30%) for
somewhat stronger west winds than are in the forecast and near
critical fire weather conditions depending on the location and
strength of a passing upper level trough.
.TODAY...
Sky/weather.........Partly cloudy (40-50 percent).
CWR.................2 percent.
Chance of pcpn......10 percent.
LAL.................1.
Max temperature.....Around 70.
Min humidity........22 percent.
Wind (20 ft)........Northwest winds around 5 mph until 0700, then
north until 0900, then variable up to 5 mph
until 1100, then east 5 to 8 mph until 1500,
then southeast 5 to 12 mph.
Mixing height.......Below 1000 FT AGL until 0900. 7300 ft AGL after
1100.
Transport winds.....North 8 to 13 mph until 1100, then east until
1200, then southeast 8 to 10 mph until 1600,
then south around 8 mph.
Smoke dispersal.....Poor until 1100, then fair.
Haines Index........5 or moderate potential for large plume
dominated fire growth.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........50 49 46 45 46 44 42 44 44 44 49 49
Weather cov.....
Weather type....
Tstm cov........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
Chc of pcpn (%).0 0 0 0 0 0 0 0 10 10 10 10
LAL.............1 1 1 1 1 1 1 1 1 1 1 1
Temp............49 47 50 55 60 64 68 70 70 69 67 64
RH..............44 45 42 38 32 27 23 22 22 22 26 29
20 FT wind dir..NW N N N NE E E E E SE SE SE
20 FT wind spd..5 3 3 3 3 5 6 6 7 7 7 7
20 FT wind gust.7 7 6 6 6 7 8 9 12 12 12 12
Mix hgt (kft)...0.6 0.6 0.6 1.4 3.1 5.9 7.1 8.2 8.1 7.5 6.8 5.6
Transp wind dir.N N N N NE E E SE SE SE S E
Transp wind spd.12 12 8 8 8 8 7 7 7 7 8 8
Haines index....5 5 5 5 5 5 5 5 5 5 5 5
Vrate kt-ft/1K..6 6 4 10 21 42 42 49 49 45 48 39
SmokeDispersion.P P P P P F F F F F F P
.TONIGHT...
Sky/weather.........Partly cloudy (25-35 percent) until 0300, then
clear (0-10 percent).
CWR.................1 percent.
Chance of pcpn......0 percent.
LAL.................1.
Min temperature.....Around 43.
Max humidity........66 percent.
Wind (20 ft)........East winds 5 to 7 mph until 2000, then variable
up to 5 mph until 2200, then southwest 5 to 7
mph until 0200, then west.
Mixing height.......3100 ft AGL until 1900. Below 1000 FT AGL after
2000.
Transport winds.....Southeast around 9 mph until 1900, then light
until 2300, then west 8 to 14 mph.
Smoke dispersal.....Poor.
Haines Index........4 or low potential for large plume dominated
fire growth.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........47 39 44 39 23 22 15 10 9 4 3 3
Weather cov.....
Weather type....
Tstm cov........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
Chc of pcpn (%).0 0 0 0 0 0 0 0 0 0 0 0
LAL.............1 1 1 1 1 1 1 1 1 1 1 1
Temp............64 58 54 50 49 48 48 47 46 47 46 45
RH..............30 39 45 52 54 56 56 56 58 56 58 60
20 FT wind dir..SE E E S SW SW SW SW W W W W
20 FT wind spd..6 5 3 3 5 5 5 5 5 6 6 6
20 FT wind gust.9 7 5 5 7 7 7 7 8 9 9 9
Mix hgt (kft)...3.1 1.0 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6
Transp wind dir.SE E W S W W W W W W W W
Transp wind spd.9 6 7 6 7 8 9 10 13 14 14 13
Haines index....4 4 4 4 4 4 4 4 4 4 4 4
Vrate kt-ft/1K..25 5 3 3 3 4 5 5 6 7 7 7
SmokeDispersion.P P P P P P P P P P P P
.SATURDAY...
Sky/weather.........Mostly sunny (5-15 percent) until 1400, then
partly cloudy (25-35 percent).
CWR.................1 percent.
Chance of pcpn......0 percent.
LAL.................1.
Max temperature.....Around 72.
Min humidity........22 percent.
Wind (20 ft)........West winds 5 to 7 mph until 1000. Southeast 5
to 8 mph after 1200.
Mixing height.......Below 1000 FT AGL until 0900, then 1200 ft AGL
until 1000, then 5500 ft AGL until 1200, then
7200 ft AGL.
Transport winds.....West 8 to 13 mph until 1000, then becoming southeast
8 to 10 mph after 1200.
Smoke dispersal.....Poor until 1200, then fair until 1600, then
poor.
Haines Index........4 or low potential for large plume dominated
fire growth.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........5 4 4 3 6 8 11 19 28 36 34 33
Weather cov.....
Weather type....
Tstm cov........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
Chc of pcpn (%).0 0 0 0 0 0 0 0 0 0 0 0
LAL.............1 1 1 1 1 1 1 1 1 1 1 1
Temp............45 44 46 53 62 67 69 71 72 71 71 69
RH..............62 66 65 53 36 28 25 22 22 22 23 24
20 FT wind dir..W W W SW SW S SE SE SE SE SE SE
20 FT wind spd..5 5 5 5 5 5 6 6 7 7 6 6
20 FT wind gust.7 7 7 7 7 7 9 9 12 12 9 9
Mix hgt (kft)...0.6 0.6 0.6 1.2 4.1 5.9 7.7 7.6 7.6 7.6 5.7 3.9
Transp wind dir.W W W SW SW S S S SE SE SE S
Transp wind spd.12 10 8 6 6 7 7 7 7 7 7 8
Haines index....4 4 4 4 4 4 4 4 4 4 4 4
Vrate kt-ft/1K..6 5 4 6 20 32 46 46 46 45 36 26
SmokeDispersion.P P P P P P F F F F P P
.FORECAST DAYS 3 THROUGH 7...
.SUNDAY...
Mostly clear. Lows in the mid 40s. Highs in the mid 70s. West
winds 5-10 mph becoming east in the afternoon.
.MONDAY...
Mostly clear. Lows in the mid 40s. Highs in the lower 70s. West
winds around 6-12 mph becoming northeast in the afternoon.
.TUESDAY...
Mostly clear. Lows in the upper 30s. Highs in the lower 70s. West
winds 6-12 mph.
.WEDNESDAY...
Mostly clear. Lows in the lower 40s. Highs in the lower 70s. West
winds 8-16 mph.
.THURSDAY...
Partly cloudy. Lows in the lower 40s. Highs in the upper 60s.
West winds 6-12 mph.
$$
Forecaster...Gimmestad
Requested by...James Pilsmaker
Type of request...PRESCRIBED
.TAG 2423025.2/BOU
.DELDT 09/27/24
.FormatterVersion 2.0.0
.EMAIL james.pilsmaker@usda.gov