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000
FNUS75 KBOU 260345
FWSBOU

Spot Forecast for Payne Gulch...USFS
National Weather Service Denver/Boulder CO
845 PM MST Sat Jan 25 2020

If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...The region will remain under a moderate northwest
flow pattern through Sunday. There is a batch of clouds which will
be over the area tonight and and portions of Sunday with partly
cloudy skies, but dry conditions. A stronger disturbance will
bring a chance of snow for late Sunday night and Monday. Smoke
dispersal will improve to fair to good conditions for much of
Sunday afternoon.

.REST OF TONIGHT...

Sky/weather.........Mostly cloudy until 0300, then partly
                    cloudy(40-50%).
CWR.................0 percent.
Min temperature.....Around 23.
Max humidity........59%.
Wind (20 ft)........West winds 5-11 mph.
Mixing height.......Below 1000 FT AGL.
Transport winds.....Northwest 14-21 mph.
Smoke dispersal.....Poor.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

TIME (MST)      MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........66  66  66  59  45  38
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0
Temp............27  26  26  25  24  24
RH..............48  48  48  50  52  50
20 FT wind dir..W   W   W   W   W   W
20 FT wind spd..7   7   12  12  12  12
20 FT wind gust.12
Mix hgt (kft)...0.6 0.6 0.6 0.6 0.6 0.6
Transp wind dir.W   W   W   W   NW  NW
Transp wind spd.21  21  21  20  21  19
Haines index....3   3   3   3   3   3
Vrate kt-ft/1K..9   9   9   8   9   8
SmokeDispersion.P   P   P   P   P   P

.SUNDAY...

Sky/weather.........Partly cloudy(40-50%) until 0800, then mostly
                    cloudy(60-65%) until 1000, then partly
                    cloudy(40-50%).
CWR.................0 percent.
Max temperature.....Around 44.
Min humidity........30%.
Wind (20 ft)........West winds 5-11 mph.
Mixing height.......Below 1000 FT AGL until 0900, then 3800 ft AGL.
Transport winds.....Northwest 15-25 mph until 1600, then west 8-13
                    mph.
Smoke dispersal.....Poor until 1100, then fair until 1200, then
                    good until 1600, then poor.
Haines Index........4 or low potential for large plume dominated
                    fire growth.

TIME (MST)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........44  54  64  61  57  54  49  44  39  36  34  31
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Temp............24  25  27  31  35  40  43  44  44  42  39  35
RH..............50  48  44  39  36  33  30  31  31  33  37  45
20 FT wind dir..W   W   W   W   W   W   W   W   W   W   W   W
20 FT wind spd..12  7   7   7   7   7   6   6   6   5   4   4
20 FT wind gust.    12  12  12                              8
Mix hgt (kft)...0.6 0.5 0.5 1.3 2.1 2.9 3.7 4.5 4.5 4.5 2.5 2.5
Transp wind dir.W   NW  W   NW  NW  NW  NW  NW  NW  NW  W   W
Transp wind spd.18  18  17  20  24  25  25  25  24  21  13  11
Haines index....4   4   4   4   4   4   4   4   4   4   4   4
Vrate kt-ft/1K..7   7   7   20  37  55  70  86  82  72  22  17
SmokeDispersion.P   P   P   P   P   F   G   G   G   G   P   P

.SUNDAY NIGHT...

Sky/weather.........Partly cloudy(40-50%) until 0300, then mostly
                    cloudy. Chance of snow showers after 0500.
CWR.................5 percent.
Min temperature.....Around 27.
Max humidity........58%.
Wind (20 ft)........West winds 5-6 mph.
Mixing height.......1100 ft AGL.
Transport winds.....West 8-13 mph.
Smoke dispersal.....Poor.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

TIME (MST)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........38  48  51  49  52  55  56  54  54  60  69  75
Weather cov.....                                            CHC
Weather type....                                            SW
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   10
Temp............32  30  28  27  27  27  30  30  30  30  30  32
RH..............51  53  58  57  57  57  51  51  53  51  53  47
20 FT wind dir..W   W   W   W   W   W   W   W   W   W   W   W
20 FT wind spd..6   6   6   6   6   6   6   6   6   6   6   6
20 FT wind gust.8   8   8   8   8   8   8   8   8   8   8   8
Mix hgt (kft)...2.1 1.7 1.3 1.3 1.2 1.1 1.1 1.1 1.1 1.1 1.1 1.1
Transp wind dir.W   W   W   W   W   W   W   W   W   W   W   W
Transp wind spd.11  12  13  12  12  12  12  11  11  10  10  10
Haines index....2   2   2   2   2   2   2   2   2   2   2   2
Vrate kt-ft/1K..16  14  12  11  10  9   8   8   7   7   7   6
SmokeDispersion.P   P   P   P   P   P   P   P   P   P   P   P

$$
Forecaster...ENTREKIN
Requested by...Casey French
Type of request...PRESCRIBED
.TAG 2000362.12/BOU
.DELDT 01/26/20
.FormatterVersion 1.0.26
.EMAIL casey.french@usda.gov