Spot Forecast
Issued by NWS Denver/Boulder, CO
Issued by NWS Denver/Boulder, CO
829
FNUS75 KBOU 051108
FWSBOU
Spot Forecast for Green MTN RX...USFS
National Weather Service Denver/Boulder CO
508 AM MDT Wed Jun 5 2024
If conditions become unrepresentative...contact the National Weather
Service.
.DISCUSSION...Much above normal temperatures and dry conditions
will persist today. Surface winds are expected to be out of the
west or northwest to start the day, and then turn more northerly in
the afternoon, and possibly even upslope from the east or
northeast by mid afternoon. There`s a fair amount of uncertainty,
but whatever the case the winds should be under 10 mph this
afternoon. While transport winds will start out of the west, there
is more agreement in northwesterly transport winds late this
morning through the afternoon. Humidity readings will drop under
prescription thresholds of 15% for a few hours this afternoon,
given the very warm temperatures and dry airmass in place.
Only moderate humidity recovery will occur tonight, but winds
will be light.
Thursday should see more favorable conditions for burning under
the prescription thresholds. While initially light southwest
transport winds can be expected in the morning, daytime heating
and upslope easterly flow will develop by mid to late morning and
continue through Thursday afternoon. Weakening flow aloft should
also allow transport winds to become southeasterly during the
afternoon hours. At the same time, it will still be a dry and warm
day, but minimum humidity levels should stay just above the 15%
threshold.
.TODAY...
Sky/weather.........Mostly sunny (0-10 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
LAL.................1.
Max temperature.....Around 81.
Min humidity........12-13 percent.
Wind (20 ft)........West winds 5 to 8 mph until 1100, then
northwest around 5 mph until 1300, then
northeast 5 to 8 mph until 1700, then
northwest 5 to 8 mph.
Mixing height.......Below 1000 FT AGL until 0800. 9100 ft AGL after
1200.
Transport winds.....West 8 to 11 mph until 0900, then northwest 8
to 14 mph.
Smoke dispersal.....Poor until 1000, then fair until 1200, then
good until 1400, then very good.
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 (%).........1 1 1 1 1 1 1 1 3 3 6 11
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............52 55 60 65 69 73 75 77 79 81 81 80
RH..............44 41 35 29 22 18 16 15 14 13 13 14
20 FT wind dir..W W W W W NW N NE NE E N W
20 FT wind spd..7 7 5 5 5 5 5 5 6 7 8 8
20 FT wind gust.12 12 7 7 7 7 7 7 9 12 13 13
Mix hgt (kft)...0.3 0.5 1.5 2.9 4.5 5.8 7.3 8.4 8.6 9.2 9.3 9.1
Transp wind dir.W W W NW NW NW NW NW NW NW NW W
Transp wind spd.9 9 8 8 10 12 13 13 14 14 14 14
Haines index....5 5 5 5 5 5 5 5 5 5 5 5
Vrate kt-ft/1K..3 4 11 20 41 58 80 93 103 110 112 110
SmokeDispersion.P P P P F F G G VG VG VG VG
.TONIGHT...
Sky/weather.........Mostly clear (5-15 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
LAL.................1.
Min temperature.....Around 51.
Max humidity........53 percent.
Wind (20 ft)........Northwest winds 5 to 8 mph until 2300, then
west 5 to 7 mph.
Mixing height.......8100 ft AGL until 1900. Below 1000 FT AGL after
2000.
Transport winds.....West 8 to 15 mph until 2200, then 8 to 10 mph
until 2400, then 8 to 9 mph until 0200, then
northwest until 0400, then north 8 to 11 mph.
Smoke dispersal.....Very good until 1900. Poor after 0100.
Haines Index........5 or moderate potential for large plume
dominated fire growth.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........14 15 13 10 9 11 8 8 7 8 9 8
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............78 75 71 67 64 62 60 59 57 56 53 52
RH..............16 20 24 28 32 35 37 39 40 43 48 52
20 FT wind dir..NW NW NW NW W W W W W W W W
20 FT wind spd..8 7 6 5 5 5 5 6 6 6 6 6
20 FT wind gust.13 12 9 7 7 7 7 9 9 9 9 9
Mix hgt (kft)...8.1 4.6 0.9 0.5 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.3
Transp wind dir.WWNWWNWNWWWWNW NN
Transp wind spd.15 14108 77766788
Haines index....5 5 5555555555
Vrate kt-ft/1K..106 55 8332322332
SmokeDispersion.VG F PPPPPPPPPP
.THURSDAY...
Sky/weather.........Mostly sunny (10-20 percent) until 1500, then
partly cloudy (30-40 percent).
CWR.................4 percent.
Chance of pcpn......10 percent.
LAL.................1.
Max temperature.....Around 80.
Min humidity........18 percent.
Wind (20 ft)........Southwest winds around 5 mph until 0800, becoming
East 6 to 12 mph after 1200.
Mixing height.......Below 1000 FT AGL until 0800. 8800 ft AGL after
1200.
Transport winds.....Southwest 5 to 9 mph until 1000, then northwest
8-14 mph until 1300, then northeast to east
10-15 mph.
Smoke dispersal.....Poor until 1000, then fair until 1100, then
good.
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 (%).........8 7 8 5 6 10 19 19 25 31 36 40
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 5 5 5
LAL.............1 1 1 1 1 1 1 1 1 1 1 1
Temp............51 55 58 64 71 75 77 79 80 80 80 79
RH..............53 49 45 37 28 24 20 19 19 20 20 21
20 FT wind dir..W SW S S SE E E E E E E E
20 FT wind spd..5 5 3 3 5 7 9 10 12 12 12 10
20 FT wind gust.7 7 6 6 7 12 15 16 18 18 18 16
Mix hgt (kft)...0.3 0.4 1.3 1.8 4.3 6.7 8.6 8.6 8.3 8.1 7.0 5.9
Transp wind dir.NW SW S S SW W W NW N NE E SE
Transp wind spd.6 5 7 8 8 9 12 13 13 12 12 10
Haines index....4 4 4 4 4 4 4 4 4 4 4 4
Vrate kt-ft/1K..2 2 8 13 30 53 86 94 88 81 68 56
SmokeDispersion.P P P P P F G G G G G F
.FORECAST DAYS 3 THROUGH 5...
.FRIDAY...
Partly cloudy with chance of showers and thunderstorms. Lows in
the mid 50s. Highs in the lower 80s. West winds around 7 mph.
.SATURDAY...
Mostly cloudy. Showers likely and chance of thunderstorms. Lows
in the mid 50s. Highs in the upper 70s. West winds around 5 mph.
.SUNDAY...
Mostly cloudy with showers and thunderstorms likely. Lows in the
lower 50s. Highs in the upper 60s. North winds around 5 mph.
$$
Forecaster...Barjenbruch
Requested by...John Hill
Type of request...PRESCRIBED
.TAG 2415471.5/BOU
.DELDT 06/05/24
.FormatterVersion 2.0.0
.EMAIL John.Hill@usda.gov