Spot Forecast
Issued by NWS Denver/Boulder, CO
Issued by NWS Denver/Boulder, CO
275
FNUS75 KBOU 061040
FWSBOU
Spot Forecast for Forsythe II - Unit 44...USFS
National Weather Service Denver/Boulder CO
440 AM MDT Thu Jun 6 2024
If conditions become unrepresentative...contact the National Weather
Service.
.DISCUSSION...Warm and dry weather will prevail today, with light
upslope flow expected for the late morning and afternoon hours. It
will be just a couple degrees cooler than yesterday with a slight
bump in humidity readings. For tonight, only moderate humidity
recovery will occur with light winds.
Friday will see a return of much above normal temperatures. However,
enough moisture and instability is expected by afternoon for a
chance of showers and thunderstorms with gusty outflow winds but
mainly light rainfall.
.REST OF TODAY...
Sky/weather.........Mostly sunny (5-15 percent).
CWR.................2 percent.
Chance of pcpn......10 percent.
LAL.................1.
Max temperature.....Around 82.
Min humidity........18-20 percent.
Wind (20 ft)........Variable up to 5 mph until 0900, then east 5 to
7 mph.
Mixing height.......2900 ft AGL until 1100, then 7200 ft AGL.
Transport winds.....Northwest 8 to 12 mph until 1200, then
northeast around 12 mph until 1400, then west
10 to 15 mph until 1700, then southwest around
12 mph.
Smoke dispersal.....Poor until 1000, then fair until 1400, then
good.
Haines Index........4 or low potential for large plume dominated
fire growth.
TIME (MDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........4 4 5 6 6 7 9 12 16 17
Weather cov.....
Weather type....
Tstm cov........
CWR.............0 0 0 0 0 0 0 0 0 0
Chc of pcpn (%).0 0 0 0 0 0 10 10 10 0
LAL.............1 1 1 1 1 1 1 1 1 1
Temp............59 65 70 73 76 78 80 81 82 82
RH..............47 40 34 30 28 25 23 22 22 22
20 FT wind dir..NW N N E E E E E E E
20 FT wind spd..3 2 2 3 5 5 6 6 6 6
20 FT wind gust.6 3 3 6 7 7 9 9 9 9
Mix hgt (kft)...1.7 2.3 3.1 4.5 5.2 5.8 7.1 7.4 7.3 7.3
Transp wind dir.NW NW NW W W NE W W W SW
Transp wind spd.10 9 9 10 10 12 12 12 12 12
Haines index....4 4 4 4 4 4 4 4 4 4
Vrate kt-ft/1K..15 18 25 40 47 58 71 74 73 73
SmokeDispersion.P P P F F F G G G G
.TONIGHT...
Sky/weather.........Mostly clear (10-20 percent).
CWR.................1 percent.
Chance of pcpn......0 percent.
LAL.................1.
Min temperature.....Around 54.
Max humidity........51 percent.
Wind (20 ft)........East winds around 5 mph until 1900, then
southeast until 2100, then variable up to 5 mph
until 2200, then southwest 5 to 7 mph until
0100, then west 5 to 12 mph.
Mixing height.......6400 ft AGL until 1900. Below 1000 FT AGL after
2000.
Transport winds.....South 8 to 11 mph until 2000, then southeast
around 8 mph until 2100, then light until 2300,
then west 8 to 14 mph.
Smoke dispersal.....Fair until 1900, then poor.
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 (%).........21 20 18 16 16 16 16 16 12 12 10 9
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............80 76 71 67 64 62 61 60 59 57 55 54
RH..............24 29 35 40 44 45 45 46 46 45 51 50
20 FT wind dir..E SE SE SW SW SW W W W W W W
20 FT wind spd..5 3 3 3 5 5 6 6 7 7 7 8
20 FT wind gust.7 6 6 6 7 7 9 9 12 12 12 13
Mix hgt (kft)...6.4 4.7 0.9 0.8 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7
Transp wind dir.S SE SE SE SW W W W W W W W
Transp wind spd.9 8 8 7 7 8 9 12 12 13 14 14
Haines index....5 5 5 5 5 5 5 5 5 5 5 5
Vrate kt-ft/1K..51 33 6 5 4 5 5 7 7 8 8 9
SmokeDispersion.F P P P P P P P P P P P
.FRIDAY...
Sky/weather.........Mostly sunny (5-15 percent) until 1000, then
partly cloudy (35-45 percent) until 1200, then
mostly cloudy (60-70 percent). Chance of rain
showers and thunderstorms after 1200.
CWR.................0 percent increasing to 19 percent in the
afternoon.
Chance of pcpn......40 percent.
LAL.................1 until 1200, then 4.
Max temperature.....Around 84.
Min humidity........20 percent.
Wind (20 ft)........West winds 5 to 13 mph until 1100, then
northwest 6 to 11 mph. Gusty and erratic winds
expected near thunderstorms after 1200.
Mixing height.......Below 1000 FT AGL until 0700, then 3600 ft AGL
until 1000, then 8200 ft AGL until 1200, then
10900 ft AGL until 1400, then 6600 ft AGL.
Transport winds.....West 13 to 22 mph.
Smoke dispersal.....Poor until 0800, then fair until 0900, then
good until 1000, then very good until 1100,
then excellent until 1400, then very good until
1600, then good.
Haines Index........6 or high potential for large plume dominated
fire growth.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........10 11 12 13 30 47 64 64 64 64 64 64
Weather cov..... CHC CHC CHC CHC CHC CHC
Weather type.... RW RW RW RW RW RW
Tstm cov........ CHC CHC CHC CHC CHC CHC
CWR.............0 0 0 0 0 0 20 20 20 20 20 20
Chc of pcpn (%).0 0 0 0 0 0 40 40 40 40 40 40
LAL.............1 1 1 1 1 1 4 4 4 4 4 4
Temp............56 59 64 72 76 79 81 83 82 80 78 76
RH..............47 44 37 28 24 23 21 20 21 24 27 30
20 FT wind dir..W W W W W W W NW NW NW NW W
20 FT wind spd..8 8 7 7 8 8 9 9 9 9 8 8
20 FT wind gust.13 13 12 12 13 13 15 15 15 15 13 13
Mix hgt (kft)...0.7 1.8 3.0 4.2 6.5 8.8 11 9.6 8.1 6.5 5.7 4.9
Transp wind dir.W W W W W W W W W W W W
Transp wind spd.13 14 16 17 18 21 22 22 21 21 20 20
Haines index....6 6 6 6 6 6 6 6 6 6 6 6
Vrate kt-ft/1K..8 23 41 63 106 156 212 179 148 117 99 82
SmokeDispersion.P P F G VG E E E VG VG G G
.FORECAST DAYS 3 THROUGH 5...
.SATURDAY...
Not as warm. Mostly cloudy with showers and thunderstorms likely.
Lows in the lower 50s. Highs in the lower 70s. Variable winds
less than 10 mph.
.SUNDAY...
Mostly cloudy with showers likely and chance of thunderstorms.
Lows in the upper 40s. Highs in the upper 60s. Variable winds
less than 10 mph.
.MONDAY...
Mostly cloudy with showers likely and chance of thunderstorms.
Lows in the upper 40s. Highs in the lower 70s. Variable winds
less than 10 mph.
$$
Forecaster...Barjenbruch
Requested by...Ed LeBlanc
Type of request...PRESCRIBED
.TAG 2414199.16/BOU
.DELDT 06/06/24
.FormatterVersion 2.0.0
.EMAIL Edward.leblanc@usda.gov