Spot Forecast
Issued by NWS Denver/Boulder, CO
Issued by NWS Denver/Boulder, CO
059
FNUS75 KBOU 281124
FWSBOU
Spot Forecast for Forsythe II - Unit 44...USFS
National Weather Service Denver/Boulder CO
524 AM MDT Tue May 28 2024
If conditions become unrepresentative...contact the National Weather
Service.
.DISCUSSION...There will be a bit more moisture today, and
scattered thunderstorms are expected to develop over the east
slopes of the Front Range by mid afternoon. Rainfall will
generally be light with these storms, so if it does rain the most
likely rainfall amount is a tenth of an inch or less. Similar
storm activity is expected on Wednesday. There may be a bit more
moisture available, but the chance of more than one to two tenths
of an inch of rain is low.
A chance of afternoon thunderstorms will continue each day through
Saturday. A wetting rain with a tenth to quarter inch of rain is
likely sometime between now and Saturday, though it`s not
certain. A warm and dry period is expected after that.
.REST OF TODAY...
Sky/weather.........Mostly sunny (5-15 percent) until 1200, then
partly cloudy (30-40 percent) until 1500, then
mostly cloudy (50-60 percent). Slight chance of
rain showers and thunderstorms after 1400 until
1600, then chance of rain showers and
thunderstorms.
CWR.................10 percent.
Chance of pcpn......30 percent.
LAL.................1 until 1400, then 3 until 1600, then 4.
Max temperature.....Around 67.
Min humidity........32 percent.
Wind (20 ft)........Variable up to 5 mph until 1200, then east 5 to
8 mph until 1500, then southeast until 1700,
then south around 6 mph. Gusty and erratic
winds expected near thunderstorms after 1400.
Mixing height.......Below 1000 FT AGL until 0800. 6800 ft AGL after
1100.
Transport winds.....Southwest 8 to 9 mph until 0900, then west 8 to
11 mph until 1400, then southwest around 8 mph
until 1500, then south until 1600, then
southwest 8 to 12 mph.
Smoke dispersal.....Poor until 1200, then fair.
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 (%).........3 3 2 11 16 30 39 44 55 58 57
Weather cov..... SCH SCH CHC CHC
Weather type.... RW RW RW RW
Tstm cov........ SCH SCH CHC CHC
CWR.............0 0 0 0 0 0 10 10 10 20 20
Chc of pcpn (%).0 0 0 0 0 10 10 20 20 30 30
LAL.............1 1 1 1 1 1 1 3 3 4 4
Temp............45 49 59 63 66 67 67 67 67 67 67
RH..............53 50 36 34 32 32 32 32 32 32 33
20 FT wind dir..W W NE E E E E E SE SE S
20 FT wind spd..3 2 2 3 3 6 6 6 7 6 6
20 FT wind gust.6 3 3 6 6 9 9 9 9 9 7
Mix hgt (kft)...0.7 1.3 2.9 4.0 5.5 6.3 7.2 7.2 6.8 6.7 5.4
Transp wind dir.SW SW W W NW W W SW S SW S
Transp wind spd.7 6 7 7 8 9 9 8 8 9 9
Haines index....5 5 5 5 5 5 5 5 5 5 5
Vrate kt-ft/1K..4 6 18 24 38 50 58 50 48 53 43
SmokeDispersion.P P P P P F F F F F F
.TONIGHT...
Sky/weather.........Mostly cloudy (45-55 percent) until 1900, then
partly cloudy (30-40 percent). Slight chance of
rain showers and thunderstorms until 2200.
CWR.................6 percent.
Chance of pcpn......20 percent.
LAL.................3 until 2100, then 1.
Min temperature.....Around 45.
Max humidity........73 percent.
Wind (20 ft)........Southwest winds around 5 mph. Gusty and
erratic winds expected near thunderstorms
until 2200.
Mixing height.......4000 ft AGL until 1900. Below 1000 FT AGL after
2000.
Transport winds.....Light winds until 1900, then southwest 8 to 11
mph.
Smoke dispersal.....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 (%).........52 47 45 38 34 32 22 21 20 20 19 19
Weather cov.....SCH SCH SCH SCH
Weather type....RW RW RW RW
Tstm cov........SCH SCH SCH SCH
CWR.............10 10 10 0 0 0 0 0 0 0 0 0
Chc of pcpn (%).20 20 20 10 10 10 0 0 0 0 0 0
LAL.............3 3 3 2 1 1 1 1 1 1 1 1
Temp............62 60 55 53 51 49 48 47 46 46 46 46
RH..............41 46 55 59 61 63 68 71 73 71 68 63
20 FT wind dir..S S SW SW SW SW SW SW SW SW SW SW
20 FT wind spd..5 5 5 3 5 3 3 5 6 7 7 6
20 FT wind gust.7 7 7 7 7 6 6 6 7 9 9 7
Mix hgt (kft)...4.0 1.6 0.7 0.6 0.6 0.6 0.7 0.7 0.7 0.7 0.7 0.7
Transp wind dir.SE S SW SW SW SW W W SW SW SW W
Transp wind spd.7 8 8 7 7 8 8 8 9 9 9 9
Haines index....4 4 4 4 4 4 4 4 4 4 4 4
Vrate kt-ft/1K..24 11 5 4 4 5 5 5 5 5 5 5
SmokeDispersion.P P P P P P P P P P P P
.WEDNESDAY...
Sky/weather.........Mostly sunny (15-25 percent) until 1000, then
partly cloudy (30-40 percent) until 1200, then
mostly cloudy (50-60 percent). Chance of rain
showers and thunderstorms after 1200.
CWR.................15 percent.
Chance of pcpn......40 percent.
LAL.................1 until 1200, then 4.
Max temperature.....Around 74.
Min humidity........23 percent.
Wind (20 ft)........West to southwest winds 5 to 10 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 8000 ft AGL until 1200, then
10500 ft AGL until 1400, then 7300 ft AGL.
Transport winds.....West 9 to 14 mph.
Smoke dispersal.....Poor until 1000, then good until 1200, then
very good until 1400, then good until 1700,
then fair.
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 (%).........14 18 20 21 28 37 57 57 57 57 57 57
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 10 10 10 10 10 10
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............46 50 56 61 67 70 72 73 72 70 69 68
RH..............58 52 45 41 30 27 24 23 24 26 25 27
20 FT wind dir..W W W W SW S S S SW SW SW SW
20 FT wind spd..6 5 3 3 2 2 5 5 5 6 6 5
20 FT wind gust.9 7 6 6 3 3 7 7 7 9 9 7
Mix hgt (kft)...0.7 0.7 1.4 3.4 6.4 8.5 11 9.3 7.9 6.5 6.3 6.1
Transp wind dir.W W W W W W W W W W W W
Transp wind spd.9 10 12 13 13 14 14 14 13 13 12 12
Haines index....5 5 5 5 5 5 5 5 5 5 5 5
Vrate kt-ft/1K..5 6 14 37 73 100 128 108 90 72 65 59
SmokeDispersion.P P P P G G VG VG G G G F
.FORECAST DAYS 3 THROUGH 5...
.THURSDAY...
Partly cloudy with chance of showers and thunderstorms. Lows in
the mid 40s. Highs in the upper 60s. Southwest winds around
5 mph.
.FRIDAY...
Partly cloudy with chance of showers and thunderstorms. Lows in
the lower 40s. Highs around 70. Northwest winds around 5 mph.
.SATURDAY...
Partly cloudy with chance of showers and slight chance of
thunderstorms. Lows in the mid 40s. Highs in the mid 70s. West
winds around 5 mph.
$$
Forecaster...Gimmestad
Requested by...Ed LeBlanc
Type of request...PRESCRIBED
.TAG 2414199.11/BOU
.DELDT 05/28/24
.FormatterVersion 2.0.0
.EMAIL Edward.leblanc@usda.gov