Spot Forecast
Issued by NWS Boston, MA

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FNUS71 KBOX 272134
FWSBOX

Spot Forecast for Buck Hill 24 Fire...Massachusetts Bureau of Forest Fire Control and
National Weather Service Boston/Norton MA
534 PM EDT Sat Apr 27 2024

Forecast is based on forecast start time of 1800 EDT on April 27.
If conditions become unrepresentative, contact the National
Weather Service.

.DISCUSSION...

Winds will be from the southwest at 10 to 15 mph tonight with a
few gusts around 20 mph early this evening. Minimum relative
humidity values of 25 to 35 percent early this evening will
increase to between 40 and 50 percent by midnight. Dry weather
should prevail the first half of the night...but a few showers may
work into the region well after midnight.



.TONIGHT...

Sky/weather.........Mostly cloudy. Slight chance of rain showers.
                    Chance of rain showers after midnight.
CWR.................0 percent.
Min temperature.....Around 44.
Max humidity........82 percent.
Dewpoint............32 increasing to 37 late in the night.
Max apparent temp...60.
Surface winds (mph).Southwest winds 9 to 12 mph.
Wind (20 ft)........Southwest winds 9 to 12 mph.
Mixing height.......700 ft AGL.
Transport winds.....Southwest 14 to 17 mph.
Smoke dispersal.....Good (56600 knot-ft) early in the evening
                    decreasing to poor (9300 knot-ft) late in the
                    night.
LVORI...............3.
ADI.................77 decreasing to 12 to 20.
Haines Index........2 to 3 or very low potential for large plume
                    dominated fire growth.
CEILING (KFT).......25 decreasing to 1.5.
Eye level winds.....Southwest winds 5 to 7 mph.

TIME (EDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........71  63  68  77  80  83  79  89  85  90  90  91
Weather cov.....                        SCH CHC CHC CHC CHC CHC
Weather type....                        RW  RW  RW  RW  RW  RW
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Temp............60  57  54  52  50  49  48  47  46  46  45  45
Dewpoint........31  31  31  30  30  30  30  31  32  34  36  38
RH..............33  37  41  43  46  48  49  53  58  63  70  76
Heat index (F)..60  57  54  52  46  44  43  42  41  41  40  40
20 FT wind dir..S   S   S   SW  SW  SW  SW  SW  SW  SW  SW  SW
20 FT wind spd..10  10  10  12  12  12  12  10  10  10  9   9
20 FT wind gust.14  16  17  16  16  15  15  15  15  15  16  16
Eye lvl wnd dir.S   S   S   SW  SW  SW  SW  SW  SW  SW  SW  SW
Eye lvl wnd spd.6   6   6   7   7   7   7   6   6   6   5   5
Eye lvl wnd gst.8   10  10  10  10  9   9   9   9   9   10  10
Surface wnd dir.S   S   S   SW  SW  SW  SW  SW  SW  SW  SW  SW
Surface wnd spd.10  10  10  12  12  12  12  10  10  10  9   9
Surface wnd gst.14  16  17  16  16  15  15  15  15  15  16  16
Mix hgt (kft)...4.4 2.6 0.9 0.9 0.8 0.7 0.9 1.2 1.4 1.2 1.0 0.8
Transp wind dir.SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW
Transp wind spd.15  15  16  16  16  16  16  17  17  16  15  14
LVORI...........1   2   2   2   2   2   2   2   2   2   3   4
ADI.............77  20  14  14  14  14  14  15  19  14  13  12
Haines index....2   3   3   3   2   2   2   2   2   2   2   2
Vrate kt-ft/1K..57  34  13  12  11  10  13  17  21  16  13  9
Ventrate Cat....FR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR
Ceiling (kft)...25  25  25  25  25  25  20  14  9.0 7.0 4.0 1.5

.SUNDAY...

Sky/weather.........Mostly cloudy. Slight chance of rain showers
                    early in the morning.
CWR.................0 percent.
Max temperature.....Around 66.
Min humidity........58 percent.
Dewpoint............41 increasing to 49.
Max apparent temp...64.
Surface winds (mph).Southwest winds 9 to 10 mph.
Wind (20 ft)........Southwest winds 9 to 10 mph.
Mixing height.......1700 ft AGL.
Transport winds.....Southwest 12 to 18 mph.
Smoke dispersal.....Poor (12400 knot-ft) early in the morning
                    increasing to fair (21100 knot-ft) in the
                    afternoon.
LVORI...............3.
ADI.................17 to 24 increasing to 24 to 31 through early
                    afternoon.
Haines Index........2 to 3 or very low potential for large plume
                    dominated fire growth.
CEILING (KFT).......1.0 decreasing to 0.8 early, then increasing to
                    1.5 early in the afternoon increasing to 2.5
                    early in the afternoon increasing to 4.0
                    increasing to 6.0 late in the afternoon
                    increasing to 8.0 increasing to 10 late in the
                    afternoon.
Eye level winds.....Southwest winds 5 to 6 mph.

TIME (EDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........88  85  81  79  78  81  86  84  72  69  66  63
Weather cov.....SCH
Weather type....RW
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Temp............45  45  47  49  52  54  56  59  61  63  63  64
Dewpoint........39  40  41  42  43  44  45  47  48  48  49  49
RH..............79  82  79  77  71  69  66  64  62  58  60  58
Heat index (F)..40  40  42  45  52  54  56  59  61  63  63  64
20 FT wind dir..SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  S
20 FT wind spd..9   10  10  10  9   9   9   10  10  10  10  9
20 FT wind gust.16  16  16  16  15  15  14  14  13  13  14  14
Eye lvl wnd dir.SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  S
Eye lvl wnd spd.5   6   6   6   5   5   5   6   6   6   6   5
Eye lvl wnd gst.10  10  10  10  9   9   8   8   8   8   8   8
Surface wnd dir.SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  S
Surface wnd spd.9   10  10  10  9   9   9   10  10  10  10  9
Surface wnd gst.16  16  16  16  15  15  14  14  13  13  14  14
Mix hgt (kft)...1.0 1.1 1.3 1.4 1.5 1.6 1.6 1.7 1.7 1.6 1.5 1.5
Transp wind dir.SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW
Transp wind spd.15  17  18  17  15  14  13  13  12  12  13  13
LVORI...........3   3   3   3   3   3   3   2   2   2   2   2
ADI.............17  24  31  31  29  29  27  27  25  24  25  24
Haines index....2   3   3   3   3   3   3   3   3   3   3   3
Vrate kt-ft/1K..12  17  21  21  20  19  18  18  17  16  17  16
Ventrate Cat....PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR
Ceiling (kft)...1.0 1.0 0.8 0.8 0.8 0.8 1.5 2.5 4.0 6.0 8.0 10

$$
Forecaster...Frank
Requested by...Mike Marquardt
Type of request...WILDFIRE
.TAG 2412615.0/BOX
.DELDT 04/27/24
.FormatterVersion 2.0.0
.EMAIL michael.marquardt@mass.gov