Spot Forecast
Issued by NWS Denver/Boulder, CO
Issued by NWS Denver/Boulder, CO
401
FNUS75 KBOU 060905
FWSBOU
Spot Forecast for Forsythe II Rx - Unit 44...USFS
National Weather Service Denver/Boulder CO
305 AM MDT Mon May 6 2024
If conditions become unrepresentative...contact the National Weather
Service.
Strong winds will prevail at the burn area through the forecast period.
A High Wind Warning continues through Tuesday 6 AM. Westerly winds are
expected to produce wind gusts up to 60-70 mph today and tonight.
Expected snow showers to occur briefly early morning hours
then transitioning to rain showers by late this morning through early evening.
Snow will occur once more tonight through Tuesday morning; snowfall totals
range from 1-2 inches. Gusty winds continue Tuesday afternoon with west winds
producing wind gusts up to 45 mph. Humidities remain well above 40 percent through
the entire period.
.REST OF TODAY...
Sky/weather.........Mostly cloudy (60-70 percent). Chance of snow
showers. Slight chance of thunderstorms after
1200.
CWR.................25 percent increasing to 26 percent late in the
afternoon.
Chance of pcpn......50 percent.
LAL.................1 until 1200, then 3.
Max temperature.....Around 44.
Min humidity........38 percent.
Wind (20 ft)........Very windy. West winds 34 to 44 mph with gusts
to around 60 mph. Gusty and erratic winds
expected near thunderstorms after 1200.
Mixing height.......4900 ft AGL.
Transport winds.....West 45 to 55 mph until 0900. 55 to 65 mph
after 1600.
Smoke dispersal.....Good until 0800, then excellent.
Haines Index........3 or very low potential for large plume
dominated fire growth.
TIME (MDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........64 64 62 59 66 60 58 64 72 72 71
Weather cov.....CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC
Weather type....SW SW SW SW SW SW SW SW SW SW SW
Tstm cov........ SCH SCH SCH SCH SCH SCH
CWR.............20 20 20 20 20 20 30 30 30 30 20
Chc of pcpn (%).50 50 40 40 30 30 40 40 40 40 30
LAL.............1 1 1 1 1 3 3 3 3 3 3
Temp............31 32 33 35 37 38 40 41 42 43 40
RH..............53 51 47 45 43 43 40 40 40 38 42
20 FT wind dir..W W W W W W W W W W W
20 FT wind spd..38 38 41 40 38 37 37 36 37 38 40
20 FT wind gust.58 58 60 59 58 55 55 54 55 58 59
Mix hgt (kft)...2.4 3.4 4.4 4.6 4.3 5.1 5.0 5.3 5.1 4.4 3.7
Transp wind dir.W W W W W W W W W W W
Transp wind spd.47 53 56 54 53 52 52 52 56 60 60
Haines index....3 3 3 3 3 3 3 3 3 3 3
Vrate kt-ft/1K..99 158 215 214 198 230 226 238 248 229 190
SmokeDispersion.G E E E E E E E E E E
.TONIGHT...
Sky/weather.........Mostly cloudy (50-60 percent) until 2200, then
partly cloudy (35-45 percent) until 0300, then
mostly cloudy (50-60 percent). Slight chance of
thunderstorms until 2400. Chance of snow
showers.
CWR.................7 percent.
Chance of pcpn......40 percent.
LAL.................3 until 2100, then 1.
Min temperature.....Around 31.
Max humidity........59 percent.
Wind (20 ft)........Very windy. West winds 38 to 48 mph with gusts
to around 68 mph until 2400. 22 to 30 mph with
gusts to around 41 mph after 0300. Gusty and
erratic winds expected near thunderstorms until
2100.
Mixing height.......2800 ft AGL until 2000, then 1000 ft AGL until
0300, then Below 1000 FT AGL until 0400, then
1100 ft AGL.
Transport winds.....West 49 to 59 mph until 2000. 24 to 30 mph
after 0200.
Smoke dispersal.....Excellent until 1900, then very good until
2000, then fair until 2400, then poor.
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 (%).........61 56 52 51 45 40 33 38 48 52 54 57
Weather cov.....CHC CHC CHC CHC SCH SCH SCH SCH SCH CHC CHC CHC
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 10 10 10 10 10 10
Chc of pcpn (%).30 30 30 30 20 20 20 20 20 30 30 40
LAL.............3 3 3 1 1 1 1 1 1 1 1 1
Temp............39 39 35 35 34 34 34 34 32 32 32 32
RH..............43 45 53 53 55 55 52 52 52 52 55 59
20 FT wind dir..W W W W W W W W W W W W
20 FT wind spd..41 44 43 47 43 39 37 33 30 28 24 23
20 FT wind gust.60 63 62 68 62 59 55 51 45 41 37 35
Mix hgt (kft)...3.4 2.8 1.4 1.3 1.2 1.3 1.1 1.1 1.0 0.9 1.1 1.2
Transp wind dir.W W W W W W W W W W W W
Transp wind spd.58 49 43 51 44 40 38 33 30 28 25 24
Haines index....3 3 3 3 3 3 3 3 3 3 3 3
Vrate kt-ft/1K..168 122 52 56 46 45 36 31 25 20 24 24
SmokeDispersion.E VG F F F F P P P P P P
.TUESDAY...
Sky/weather.........Mostly cloudy (65-75 percent). Chance of snow
showers. Slight chance of thunderstorms after
1200.
CWR.................24 percent.
Chance of pcpn......50 percent.
LAL.................1 until 1200, then 3.
Max temperature.....Around 46.
Min humidity........32 percent.
Wind (20 ft)........West winds 17 to 25 mph with gusts to around 41
mph. Gusty and erratic winds expected near
thunderstorms after 1200.
Mixing height.......3100 ft AGL until 1000. 7300 ft AGL after 1200.
Transport winds.....West 20 to 28 mph until 1000, then 32 to 38 mph
until 1200, then 36 to 46 mph until 1600, then
31 to 36 mph.
Smoke dispersal.....Poor until 0800, then good until 1000, then
very good until 1100, then excellent.
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 (%).........67 67 67 64 65 72 73 72 73 72 70 70
Weather cov.....CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC
Weather type....SW SW SW SW SW SW SW SW SW SW SW SW
Tstm cov........ SCH SCH SCH SCH SCH SCH
CWR.............20 20 20 20 20 20 20 20 20 20 20 20
Chc of pcpn (%).40 40 40 40 40 40 50 50 50 50 50 50
LAL.............1 1 1 1 1 1 3 3 3 3 3 3
Temp............32 35 38 41 44 45 46 46 46 46 46 45
RH..............58 54 50 42 39 38 37 35 35 32 32 32
20 FT wind dir..W W W W W W W W W W W W
20 FT wind spd..17 18 18 20 22 23 24 24 23 22 22 22
20 FT wind gust.22 22 25 29 33 38 41 41 41 39 38 37
Mix hgt (kft)...1.0 1.9 2.8 3.8 5.1 6.5 7.8 7.8 7.7 7.6 6.7 5.8
Transp wind dir.W W W W W W W W W W W W
Transp wind spd.20 22 25 28 32 38 43 41 39 38 35 32
Haines index....4 4 4 4 4 4 4 4 4 4 4 4
Vrate kt-ft/1K..16 37 61 91 145 212 290 277 264 251 203 161
SmokeDispersion.P P G G VG E E E E E E E
$$
Forecaster...AD
Requested by...Luke Finn
Type of request...PRESCRIBED
.TAG 2412828.5/BOU
.DELDT 05/06/24
.FormatterVersion 2.0.0
.EMAIL luke.finn@usda.gov