Spot Forecast
Issued by NWS Denver/Boulder, CO
Issued by NWS Denver/Boulder, CO
176
FNUS75 KBOU 031154
FWSBOU
Spot Forecast for Forsythe II Rx - Unit 44...USFS
National Weather Service Denver/Boulder CO
554 AM MDT Fri May 3 2024
If conditions become unrepresentative...contact the National Weather
Service.
.DISCUSSION...
Isolated rain showers are possible this afternoon. Westerly winds
will produce wind gusts up to 35 mph through this evening. Humidities
should remain near 25-30 percent through this afternoon then recover to
90 percent overnight.
.REST OF TODAY...
Sky/weather.........Mostly sunny (10-20 percent) until 1300, then
partly cloudy (30-40 percent). Slight chance of
rain showers and thunderstorms after 1200.
CWR.................5 percent.
Chance of pcpn......20 percent.
LAL.................1 until 1200, then 2 until 1500, then 3.
Max temperature.....Around 59.
Min humidity........25 percent.
Wind (20 ft)........West winds 10 to 18 mph with gusts to around 30
mph until 1700, then around 13 mph with gusts
to around 21 mph. Gusty and erratic winds
expected near thunderstorms after 1200.
Mixing height.......Below 1000 FT AGL until 0800, then 2900 ft AGL
until 1000, then 7200 ft AGL until 1200, then
10100 ft AGL until 1700, then 6300 ft AGL.
Transport winds.....West 19 to 24 mph until 0900, then 30 to 36 mph
until 1700, then around 23 mph.
Smoke dispersal.....Poor until 0900, then good until 1000, then
excellent until 1700, then very good.
Haines Index........5 or moderate potential for large plume
dominated fire growth.
TIME (MDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........13 10 10 14 20 24 28 40 40 44 46
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
Chc of pcpn (%).0 0 0 10 10 10 20 20 20 20 20
LAL.............1 1 1 1 1 2 2 2 3 3 3
Temp............38 43 48 52 54 56 57 57 58 55 53
RH..............45 39 34 30 28 26 25 27 26 29 34
20 FT wind dir..SW W W W W W W W W W W
20 FT wind spd..10 13 15 17 18 18 17 16 16 14 13
20 FT wind gust.16 21 24 28 30 30 28 25 25 22 21
Mix hgt (kft)...0.6 1.4 3.4 6.0 7.3 8.7 9.4 10 10 9.5 6.3
Transp wind dir.W W W W W W W W W SW W
Transp wind spd.20 22 31 35 33 35 36 33 32 30 23
Haines index....5 5 5 5 5 5 5 5 5 5 5
Vrate kt-ft/1K..10 26 92 181 211 260 290 291 284 248 126
SmokeDispersion.P P G E E E E E E E VG
.TONIGHT...
Sky/weather.........Partly cloudy (45-55 percent) until 1900, then
mostly cloudy (55-65 percent). Chance of rain
showers, slight chance of thunderstorms and
snow showers until 2400.
CWR.................7 percent.
Chance of pcpn......30 percent.
LAL.................3 until 2100, then 1.
Min temperature.....Around 30.
Max humidity........92 percent.
Wind (20 ft)........West winds around 12 mph until 1900, then north
until 2000, then south around 6 mph until 2100,
then around 5 mph until 2300, then variable up
to 5 mph. Gusty and erratic winds expected near
thunderstorms until 2100.
Mixing height.......2200 ft AGL until 2000, then 1000 ft AGL until
0300, then Below 1000 FT AGL until 0400, then
1100 ft AGL.
Transport winds.....West 8 to 15 mph until 2100, then southwest 8
to 12 mph until 2400, then southeast 8 to 9 mph
until 0200, then north 8 to 10 mph until 0400,
then light until 0500, then south around 8 mph.
Smoke dispersal.....Fair until 1900, then 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 (%).........50 56 56 57 57 56 52 57 62 64 66 65
Weather cov.....SCH CHC SCH SCH
Weather type....RW RW RS RS
Tstm cov........SCH SCH SCH
CWR.............10 10 10 10 10 0 0 0 0 0 0 0
Chc of pcpn (%).20 30 20 20 10 10 0 0 0 0 0 0
LAL.............3 3 3 1 1 1 1 1 1 1 1 1
Temp............50 45 39 36 35 34 33 32 31 30 30 30
RH..............42 53 69 77 77 83 86 90 89 91 91 91
20 FT wind dir..W N S S S SW S S S SE S S
20 FT wind spd..12 7 6 3 3 2 3 3 2 2 2 3
20 FT wind gust.18 12 9 6 6 3 6 6 3 3 3 6
Mix hgt (kft)...3.4 2.0 1.2 1.3 1.1 1.3 1.3 1.0 1.0 0.8 1.1 1.3
Transp wind dir.W NW W SW SW SW SE SE N N N S
Transp wind spd.15 9 8 10 9 8 7 6 7 7 7 8
Haines index....4 4 4 4 4 4 4 4 4 4 4 4
Vrate kt-ft/1K..45 16 8 12 9 9 8 5 6 5 7 9
SmokeDispersion.F P P P P P P P P P P P
.SATURDAY...
Sky/weather.........Mostly cloudy (55-65 percent) until 1000, then
partly cloudy (40-50 percent) until 1200, then
mostly cloudy (55-65 percent). Chance of rain
showers and slight chance of thunderstorms
after 1200.
CWR.................1 percent increasing to 19 percent in the
afternoon.
Chance of pcpn......30 percent.
LAL.................1 until 1200, then 2 until 1500, then 3.
Max temperature.....Around 54.
Min humidity........43 percent.
Wind (20 ft)........Southeast winds 5 to 8 mph until 1200, then
east 5 to 12 mph until 1700, then southeast.
Gusty and erratic winds expected near
thunderstorms after 1200.
Mixing height.......3400 ft AGL.
Transport winds.....South 8 to 12 mph.
Smoke dispersal.....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 (%).........71 68 60 51 47 45 55 55 55 55 58 62
Weather cov..... CHC CHC CHC CHC CHC CHC
Weather type.... RW RW RW RW RW RW
Tstm cov........ SCH SCH SCH SCH SCH SCH
CWR.............0 0 0 0 0 0 20 20 20 20 20 20
Chc of pcpn (%).0 0 0 0 0 0 30 30 30 30 30 30
LAL.............1 1 1 1 1 1 2 2 2 3 3 3
Temp............30 31 33 35 39 44 48 51 53 54 54 53
RH..............92 88 85 78 70 60 51 46 44 43 45 46
20 FT wind dir..SE SE SE SE SE SE E E E E SE SE
20 FT wind spd..5 5 6 6 6 7 7 7 7 7 7 7
20 FT wind gust.6 6 7 9 12 12 12 13 15 15 15 15
Mix hgt (kft)...1.2 1.4 1.5 1.6 2.2 2.8 3.4 3.5 3.6 3.7 3.0 2.2
Transp wind dir.S S S S S S S S SE SE SE S
Transp wind spd.8 8 8 8 8 8 8 8 9 9 10 10
Haines index....2 2 2 2 2 2 2 2 2 2 2 2
Vrate kt-ft/1K..9 10 11 11 16 20 24 26 28 30 26 21
SmokeDispersion.P P P P P P P P P P P P
$$
Forecaster...AD
Requested by...Luke Finn
Type of request...PRESCRIBED
.TAG 2412828.2/BOU
.DELDT 05/03/24
.FormatterVersion 2.0.0
.EMAIL luke.finn@usda.gov