Spot Forecast
Issued by NWS Denver/Boulder, CO
Issued by NWS Denver/Boulder, CO
171
FNUS75 KBOU 081427
FWSBOU
Spot Forecast for Forsythe II Rx - Unit 44...USFS
National Weather Service Denver/Boulder CO
827 AM MDT Wed May 8 2024
If conditions become unrepresentative...contact the National Weather
Service.
.DISCUSSION...Gusty winds this morning will lighten through the
morning with gusts up to 31 mph possible. Minimum relative
humidity is expected to be around 34% for today. Winds will be
lighter tomorrow with relative humidity values staying above 60%.
Light rain and snow showers will be likely in the afternoon.
.REST OF TODAY...
Sky/weather.........Mostly sunny (10-20 percent) until 1600, then
partly cloudy (30-40 percent).
CWR.................3 percent.
Chance of pcpn......10 percent.
LAL.................1.
Max temperature.....Around 46.
Min humidity........34 percent.
Wind (20 ft)........Breezy. West winds 11 to 19 mph with gusts to
around 31 mph until 1400, then 7 to 12 mph
with gusts to around 26 mph.
Mixing height.......5200 ft AGL.
Transport winds.....West 36 to 41 mph until 1200. 14 to 19 mph
after 1600.
Smoke dispersal.....Good until 1500, then very good until 1600,
then good.
Haines Index........3 or very low potential for large plume
dominated fire growth.
TIME (MDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........13 15 14 13 13 15 21 28 38
Weather cov.....
Weather type....
Tstm cov........
CWR.............0 0 0 0 0 0 0 0 0
Chc of pcpn (%).10 10 10 10 10 10 10 10 10
LAL.............1 1 1 1 1 1 1 1 1
Temp............33 36 39 42 44 45 46 46 46
RH..............45 42 40 37 35 35 34 34 34
20 FT wind dir..W W W W W W W W W
20 FT wind spd..11 18 15 13 11 11 15 15 15
20 FT wind gust.31 30 30 25 20 20 25 23 23
Mix hgt (kft)...2.1 2.8 2.8 3.3 4.2 5.1 5.6 5.4 5.0
Transp wind dir.W W W W W W W W W
Transp wind spd.40 39 37 30 25 22 21 17 16
Haines index....3 3 3 3 3 3 3 3 3
Vrate kt-ft/1K..73 95 90 87 93 96 101 81 70
SmokeDispersion.G G G G G G VG G G
.TONIGHT...
Sky/weather.........Mostly cloudy (65-75 percent). Slight chance of
thunderstorms until 2100. Slight chance of snow
showers.
CWR.................5 percent increasing to 17 percent overnight.
Chance of pcpn......20 percent.
LAL.................2 until 2100, then 1.
Min temperature.....Around 28.
Max humidity........85 percent.
Wind (20 ft)........West winds 8 to 13 mph with gusts to around 20
mph until 2400, then 5 to 8 mph until 0400,
then variable up to 5 mph until 0500, then west
around 5 mph. Gusty and erratic winds expected
near thunderstorms until 2100.
Mixing height.......2400 ft AGL until 2000, then Below 1000 FT AGL.
Transport winds.....West 8 to 17 mph until 0100, then northwest 8
to 10 mph until 0300, then 8 to 9 mph until
0500, then light.
Smoke dispersal.....Fair until 1900. Poor after 0500.
Haines Index........3 or very low potential for large plume
dominated fire growth.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........59 64 64 59 56 62 59 57 82 82 82 86
Weather cov.....SCH SCH SCH SCH SCH SCH SCH SCH SCH SCH SCH SCH
Weather type....SW SW SW SW SW SW SW SW SW SW SW SW
Tstm cov........SCH SCH SCH
CWR.............10 10 10 10 10 10 20 20 20 20 20 20
Chc of pcpn (%).20 20 20 20 20 20 20 20 20 20 20 20
LAL.............2 2 2 1 1 1 1 1 1 1 1 1
Temp............44 41 38 35 33 33 32 32 31 30 29 28
RH..............36 42 48 56 61 61 63 66 66 72 78 85
20 FT wind dir..W W W W W W W W W W W W
20 FT wind spd..13 12 10 9 9 8 7 6 6 5 2 5
20 FT wind gust.20 17 17 15 15 13 12 8 7 6 5 7
Mix hgt (kft)...3.4 2.3 0.8 0.9 0.8 0.7 0.5 0.6 0.6 0.6 0.6 0.6
Transp wind dir.W W W W W W W W NW NW NW N
Transp wind spd.17 14 13 12 10 9 8 7 7 6 6 5
Haines index....3 3 3 3 3 3 3 3 3 3 3 3
Vrate kt-ft/1K..51 28 9 9 8 6 4 4 3 3 3 3
SmokeDispersion.F P P P P P P P P P P P
.THURSDAY...
Sky/weather.........Cloudy (85-95 percent). Chance of snow showers
until 1200, then snow showers likely and slight
chance of thunderstorms. Rain showers likely
after 1600.
CWR.................31 percent increasing to 43 percent in the
afternoon.
Chance of pcpn......70 percent.
LAL.................1 until 1200, then 2.
Max temperature.....Around 43.
Min humidity........60 percent.
Wind (20 ft)........Northwest winds 5 to 7 mph until 0800, then
northeast 6 to 12 mph. Gusty and erratic winds
expected near thunderstorms after 1200.
Mixing height.......Below 1000 FT AGL until 0700, then 4700 ft AGL.
Transport winds.....North 8 to 9 mph until 0800, then light until
0900, then northeast 8 to 13 mph.
Smoke dispersal.....Poor until 1200, then fair until 1600, then
poor.
Haines Index........2 or very low potential for large plume
dominated fire growth.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........91 91 91 92 92 93 93 93 93 93 92 92
Weather cov.....CHC CHC CHC CHC CHC CHC LKY LKY LKY LKY LKY LKY
Weather type....SW SW SW SW SW SW SW SW SW SW RS RS
Tstm cov........ SCH SCH SCH SCH SCH SCH
CWR.............30 30 30 30 30 30 40 40 40 40 40 40
Chc of pcpn (%).40 40 40 40 40 40 70 70 70 70 70 70
LAL.............1 1 1 1 1 1 2 2 2 2 2 2
Temp............28 30 31 32 34 36 38 39 41 42 42 41
RH..............80 79 75 75 72 72 69 66 62 60 60 63
20 FT wind dir..W NW NE NE NE NE NE NE NE NE NE NE
20 FT wind spd..6 5 6 7 8 8 9 10 12 12 12 12
20 FT wind gust.9 7 9 12 13 13 15 16 18 18 18 18
Mix hgt (kft)...0.6 1.5 2.5 3.4 3.8 4.3 4.7 4.7 4.7 4.7 4.3 3.9
Transp wind dir.N N N N N NE NE NE NE NE NE NE
Transp wind spd.6 6 7 8 9 10 12 12 12 12 12 12
Haines index....2 2 2 2 2 2 2 2 2 2 2 2
Vrate kt-ft/1K..2 8 15 24 31 39 47 46 44 43 36 30
SmokeDispersion.P P P P P P F F F F P P
$$
Forecaster...Bonner
Requested by...Luke Finn
Type of request...PRESCRIBED
.TAG 2412828.8/BOU
.DELDT 05/08/24
.FormatterVersion 2.0.0
.EMAIL luke.finn@usda.gov