735
FNUS75 KBOU 181222
FWSBOU

Spot Forecast for structure fire...west metro
National Weather Service Denver/Boulder CO
622 AM MDT Sat May 18 2024

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

.DISCUSSION...Light and variable winds around 5 mph will be
shifting around 710-720 am this morning and start blowing from the
northeast at 10-15 mph. Winds will gradually turn east and then
southeast for the afternoon. Scattered showers and thunderstorms
will be developing in the area, mainly after 2-3 pm. Those would
produce gusty and variable outflow winds to around 35 mph, with a
slight chance wind could gust over 40 mph.

.REST OF TODAY...

Sky/weather.........Mostly sunny (20-30 percent) until 1100, then
                    partly cloudy (35-45 percent) until 1400, then
                    mostly cloudy (65-75 percent). Chance of rain
                    showers and thunderstorms after 1200, but mainly
                    after 1400-1500.
CWR.................7 percent increasing to 12 percent late in the
                    afternoon.
LAL.................1 until 1400, then 2 until 1500, then 3 until
                    1600, then 4.
Max temperature.....Around 78.
Min humidity........23 percent.
Wind (20 ft)........Variable up to 5 mph until 0720, then northeast
                    6-14 mph until 1000, then east/southeast 5-12 mph
                    until 1500, then south 8 to 13 mph. Gusty and
                    erratic winds expected near thunderstorms.
Mixing height.......Below 1000 FT AGL until 0800, then 3800 ft AGL
                    until 1200, then 6600 ft AGL until 1400, then
                    8900 ft AGL until 1700, then 5100 ft AGL.
Transport winds.....West 4-8 mph until 0730, then east 8 to 11 mph
until 1200, then southwest 9 to 16 mph.
Smoke dispersal.....Poor until 1200, then fair until 1300, then
                    good until 1400, then very good until 1600,
                    then good.
Haines Index........4 or low potential for large plume dominated
                    fire growth.

TIME (MDT)      7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........24  24  23  32  36  45  56  64  75  77  79
Weather cov.....                            SCH CHC CHC CHC
Weather type....                            RW  RW  RW  RW
Tstm cov........                            SCH SCH CHC CHC
CWR.............0   0   0   0   0   0   10  10  10  10  10
LAL.............1   1   1   1   1   1   1   2   3   4   4
Temp............55  59  63  66  70  74  75  76  77  75  73
RH..............42  39  33  30  27  23  24  24  24  27  31
20 FT wind dir..SW  NE  NE  E   E   E   SE  SE  S   S   S
20 FT wind spd..3   6   6   7   7   6   6   7   8   10  12
20 FT wind gust.6   14  12  12  12  9   9   12  13  16  18
Mix hgt (kft)...0.8 2.0 2.7 3.5 4.3 5.3 6.9 9.2 9.1 7.5 5.1
Transp wind dir.SE  E   SE  S   S   S   SW  SW  SW  SW  S
Transp wind spd.6   6   8   10  8   9   10  13  14  14  16
Haines index....4   4   4   4   4   4   4   4   4   4   4
Vrate kt-ft/1K..4   10  19  32  30  43  62  101 109 91  71
SmokeDispersion.P   P   P   P   P   F   G   VG  VG  G   G

.TONIGHT...

Sky/weather.........Mostly cloudy (60-70 percent) until 0300, then
                    partly cloudy (40-50 percent). Chance of rain
                    showers and slight chance of thunderstorms until
2400...then slight chance of rain showers until 2400.
CWR.................11 percent.
LAL.................3 until 2400, then 1.
Min temperature.....Around 52.
Max humidity........65 percent.
Wind (20 ft)........South winds 6 to 12 mph until 0300, then
                    southwest 5 to 8 mph. Gusty and erratic winds
                    expected near thunderstorms until 2400.
Mixing height.......1700 ft AGL until 2000. Below 1000 FT AGL after
                    2200.
Transport winds.....South 10 to 18 mph until 2200, then 8 to 11 mph
                    until 0100, then 8 to 9 mph until 0300, then
                    light until 0400, then south around 8 mph until
                    0500, then light.
Smoke dispersal.....Fair until 1900, then poor.
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 (%).........71  71  72  74  75  74  70  61  52  46  45  47
Weather cov.....CHC CHC CHC SCH SCH SCH
Weather type....RW  RW  RW  RW  RW  RW
Tstm cov........SCH SCH SCH SCH SCH SCH
CWR.............10  10  10  10  10  10  0   0   0   0   0   0
LAL.............3   3   3   3   3   3   1   1   1   1   1   1
Temp............71  67  64  62  60  59  58  57  55  54  54  53
RH..............35  42  47  52  54  57  59  59  63  65  63  64
20 FT wind dir..S   S   S   S   SW  S   S   S   SW  SW  SW  SW
20 FT wind spd..12  10  9   7   6   6   6   6   6   6   6   6
20 FT wind gust.18  16  15  12  9   9   9   9   9   9   9   9
Mix hgt (kft)...2.5 1.7 1.0 1.1 0.7 0.8 0.7 0.8 0.8 0.8 0.8 0.8
Transp wind dir.S   S   SW  SW  S   SW  S   S   S   S   S   W
Transp wind spd.18  14  13  10  8   9   9   6   7   7   8   7
Haines index....5   5   5   5   5   5   5   5   5   5   5   5
Vrate kt-ft/1K..41  21  11  10  5   6   6   4   5   5   6   5
SmokeDispersion.F   P   P   P   P   P   P   P   P   P   P   P

$$
Forecaster...Barjenbruch
Requested by...BUR7
Type of request...WILDFIRE
.TAG 2414572.0/BOU
.DELDT 05/18/24
.FormatterVersion 2.0.0
.EMAIL TARYN.GOGOLEN@JEFFCOM911.ORG