Spot Forecast
Issued by NWS Denver/Boulder, CO
Issued by NWS Denver/Boulder, CO
406
FNUS75 KBOU 172017 CCA
FWSBOU
Spot Forecast for Forsythe II - Unit 44...USFS
National Weather Service Denver/Boulder CO
902 AM MDT Fri May 17 2024
If conditions become unrepresentative...contact the National Weather
Service.
There is a slight chance of an isolated passing afternoon shower (15-20%) Sunday.
No severe weather expected. Chance of wetting rain (>0.10) is low.
Sunday morning before mid-day, southwest winds between 8-12 mph
could occur. It is possible winds could increase between 15-20 mph gusting
up to 25 mph Sunday afternoon.
Monday, southeasterly winds should remain light between 5-10 mph in the morning hours.
Late afternoon showers and thunderstorms are likely which may produce gusty
winds and small hail. As this system approaches, winds could shift west as early
as Monday evening.
.SUNDAY...
Sky/weather.........Partly cloudy (25-35 percent) until 0700, then
mostly sunny (15-25 percent) until 1100, then
partly cloudy (35-45 percent). Slight chance of
rain showers and thunderstorms after 1200.
CWR.................6 percent.
Chance of pcpn......20 percent.
LAL.................1 until 1200, then 3.
Max temperature.....Around 70.
Min humidity........21 percent.
Wind (20 ft)........West winds 6 to 14 mph. Gusts up to 25 mph
in the afternoon. Gusty and erratic winds
expected near thunderstorms after 1200.
Mixing height.......Below 1000 FT AGL until 0700. 11400 ft AGL
after 1100.
Transport winds.....West 13 to 22 mph until 1000, then 21 to 26
mph.
Smoke dispersal.....Poor until 0800, then good until 0900, then
very good until 1100, then excellent.
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 (%).........30 25 20 15 24 34 43 43 43 43 43 43
Weather cov..... SCH SCH SCH SCH SCH SCH
Weather type.... RW RW RW RW RW RW
Tstm cov........ SCH SCH SCH SCH SCH SCH
CWR.............0 0 0 0 0 0 10 10 10 10 10 10
Chc of pcpn (%).0 0 0 0 0 0 20 20 20 20 20 20
LAL.............1 1 1 1 1 1 3 3 3 3 3 3
Temp............43 46 50 55 59 63 66 68 69 69 69 67
RH..............64 57 51 43 36 30 26 23 22 21 21 22
20 FT wind dir..W W W W W W W W W W W W
20 FT wind spd..5 5 6 7 8 8 9 10 10 12 15 15
20 FT wind gust.12 12 12 12 12 12 12 13 15 19 25 25
Mix hgt (kft)...0.7 2.3 4.0 5.6 7.5 9.5 11 12 12 12 11 10
Transp wind dir.W W W W W W W W W W W W
Transp wind spd.13 16 18 22 23 23 24 24 24 24 23 22
Haines index....5 5 5 5 5 5 5 5 5 5 5 5
Vrate kt-ft/1K..8 32 65 106 148 193 240 241 242 244 219 196
SmokeDispersion.P P G VG VG E E E E E E E
.SUNDAY NIGHT...
Sky/weather.........Mostly clear (20-30 percent).
CWR.................4 percent.
Chance of pcpn......10 percent.
LAL.................1.
Min temperature.....Around 43.
Max humidity........57 percent.
Wind (20 ft)........West winds 5 to 10 mph with gusts to around 15
mph until 0200. Southwest around 5 mph after
0400. Gusty and erratic winds expected near
thunderstorms.
Mixing height.......9700 ft AGL until 1900. Below 1000 FT AGL after
2100.
Transport winds.....Southwest 12 to 21 mph until 0500, then south
around 10 mph.
Smoke dispersal.....Excellent until 1900. Poor after 0500.
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 (%).........28 25 22 19 20 20 21 23 25 27 26 26
Weather cov.....SCH SCH SCH SCH SCH SCH SCH SCH SCH
Weather type....RW RW RW RW RW RW RW RW RW
Tstm cov........SCH SCH SCH SCH SCH SCH SCH SCH SCH
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
Chc of pcpn (%).10 10 10 10 10 10 10 10 10 10 10 10
LAL.............2 2 2 2 2 2 2 2 2 1 1 1
Temp............65 62 58 55 53 52 51 49 47 45 44 43
RH..............23 27 31 37 39 41 42 46 47 50 53 55
20 FT wind dir..W W W W W W W W W SW SW SW
20 FT wind spd..10 9 8 7 6 5 5 5 3 3 3 3
20 FT wind gust.14 12 12 12 12 10 13 12 10 10 8 9
Mix hgt (kft)...9.7 6.7 3.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7
Transp wind dir.W W W W W W W W SW SW SW S
Transp wind spd.21 18 15 13 13 12 12 12 12 12 12 10
Haines index....5 5 5 5 5 5 5 5 5 5 5 5
Vrate kt-ft/1K..175 105 49 8 7 7 7 7 7 7 7 6
SmokeDispersion.E VG F P P P P P P P P P
.MONDAY...
Sky/weather.........Mostly sunny (20-30 percent) until 1000, then
partly cloudy (35-45 percent) until 1100, then
mostly cloudy (60-70 percent). Slight chance of
rain showers until 1200, then rain showers
likely and chance of thunderstorms.
CWR.................4 percent increasing to 38 percent in the
afternoon.
Chance of pcpn......60 percent.
LAL.................1 until 1200, then 4.
Max temperature.....Around 62.
Min humidity........36 percent.
Wind (20 ft)........Variable up to 5 mph until 1100, then east 5 to
7 mph with gusts to around 20 mph. Gusty and
erratic winds expected near thunderstorms
after 1200.
Mixing height.......Below 1000 FT AGL until 0700. 4100 ft AGL after
1100.
Transport winds.....South 10 to 17 mph until 1200. Northeast 8 to
13 mph after 1600.
Smoke dispersal.....Poor until 1000, then fair until 1100, then
good until 1200, then very good until 1300,
then good until 1400, then fair until 1500,
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 (%).........25 25 25 25 40 55 70 70 70 70 71 74
Weather cov.....SCH SCH SCH SCH SCH SCH LKY LKY LKY LKY LKY LKY
Weather type....RW RW RW RW RW RW RW RW RW RW RW RW
Tstm cov........ CHC CHC CHC CHC CHC CHC
CWR.............0 0 0 0 0 0 40 40 40 40 40 40
Chc of pcpn (%).20 20 20 20 20 20 60 60 60 60 60 60
LAL.............1 1 1 1 1 1 4 4 4 4 4 4
Temp............43 45 49 52 56 59 61 61 60 59 57 55
RH..............57 54 50 46 42 38 36 36 38 41 43 46
20 FT wind dir..SW SW SE SE SE E E E E NE NE NE
20 FT wind spd..2 2 2 2 5 8 10 10 12 12 12 12
20 FT wind gust.9 10 10 10 10 12 15 20 22 20 18 18
Mix hgt (kft)...0.7 1.5 2.4 3.3 4.3 5.4 6.4 5.5 4.5 3.6 3.0 2.5
Transp wind dir.S S S S S S S S E E NE N
Transp wind spd.10 12 13 14 16 17 20 17 14 12 10 10
Haines index....4 4 4 4 4 4 4 4 4 4 4 4
Vrate kt-ft/1K..6 15 26 39 59 82 109 80 56 36 28 22
SmokeDispersion.P P P P F G VG G F P P P
.FORECAST DAYS 3 THROUGH 5...
.TUESDAY...
Mostly cloudy with showers likely, chance of thunderstorms and
snow showers. Lows in the upper 30s. Highs in the lower 50s.
Variable winds less than 10 mph.
.WEDNESDAY...
Partly cloudy with chance of showers, snow showers and slight
chance of thunderstorms. Lows in the mid 30s. Highs around 60.
Variable winds less than 10 mph.
.THURSDAY...
Partly cloudy with slight chance of showers and thunderstorms.
Lows in the upper 30s. Highs in the mid 60s. Variable winds less
than 10 mph.
$$
Forecaster...AD
Requested by...Luke Finn
Type of request...PRESCRIBED
.TAG 2414199.1/BOU
.DELDT 05/17/24
.FormatterVersion 2.0.0
.EMAIL luke.finn@usda.gov