Spot Forecast
Issued by NWS Boston, MA

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Spot Forecast for S Range Military Training...Massachusetts Army National Guard
National Weather Service Boston/Norton MA
715 AM EST Sat Mar 8 2025

Forecast is based on forecast start time of 0800 EST on March 08.
If conditions become unrepresentative, contact the National
Weather Service.

.DISCUSSION...

Quiet weather conditions through this morning. Another strong cold
front reaches southeast Massachusetts on either side of noon with
a return of stronger winds, westerly gusts of 35 to 40 MPH
continue into this afternoon. No precipitation is expected with
this frontal passage. Minimum afternoon relative humidity values
expected drop into the 30 to 40 percent range today. Overnight,
clear skies and decreasing gusts, from the west up to 25 MPH.
Continued quiet and dry weather conditions into Sunday with breezy
westerly winds up to 25 MPH.

.REST OF TODAY...

Sky/weather.........Mostly sunny.
CWR.................0 percent.
Max temperature.....Around 42.
Min humidity........34 percent.
Dewpoint............16 decreasing to 12 late in the afternoon.
Min apparent temp...25.
Surface winds (mph).West winds 12 to 16 mph with gusts to around 30
                    mph increasing to 17 to 20 mph with gusts to
                    around 37 mph in the afternoon.
Wind (20 ft)........West winds 13 to 20 mph with gusts to around 37
                    mph.
Mixing height.......7000 ft AGL.
Transport winds.....West 21 to 26 mph increasing to 32 to 36 mph in
                    the late morning and afternoon.
Smoke dispersal.....Good (49300 knot-ft) early in the morning
                    increasing to excellent (112200 knot-ft) in the
                    afternoon increasing to excellent (150700
                    knot-ft) in the late morning and afternoon.
LVORI...............1.
ADI.................63 increasing to 102 to 105 in the late morning
                    and afternoon.
CEILING (KFT).......9.0 increasing to 20 late in the morning, then
                    increasing to 25 early decreasing to 7.0 early
                    in the afternoon increasing to 10 increasing to
                    15 late in the afternoon increasing to 20.
Eye level winds.....West winds 7 to 10 mph with gusts to around 18
                    mph increasing to 10 to 12 mph with gusts to
                    around 22 mph in the afternoon.

TIME (EST)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........43  45  48  50  51  53  28  3   10  16
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0
Temp............36  38  40  41  41  41  40  39  38  35
Dewpoint........18  17  16  16  16  16  15  13  12  13
RH..............47  42  37  36  36  36  36  34  34  40
Heat index (F)..28  30  32  33  32  32  31  29  28  25
20 FT wind dir..SW  W   W   W   W   W   W   W   W   W
20 FT wind spd..12  13  15  16  17  18  20  20  18  17
20 FT wind gust.22  26  30  29  33  36  37  37  36  33
Eye lvl wnd dir.SW  W   W   W   W   W   W   W   W   W
Eye lvl wnd spd.7   8   9   10  10  11  12  12  11  10
Eye lvl wnd gst.13  16  18  17  20  22  22  22  22  20
Surface wnd dir.SW  W   W   W   W   W   W   W   W   W
Surface wnd spd.12  13  15  16  17  18  20  20  18  17
Surface wnd gst.22  26  30  29  33  36  37  37  36  33
Mix hgt (kft)...2.7 4.9 7.0 6.9 6.8 6.7 6.4 6.1 5.9 5.4
Transp wind dir.W   W   W   W   W   W   W   W   W   W
Transp wind spd.21  26  32  33  35  36  36  35  35  32
LVORI...........1   1   1   1   1   1   1   1   1   1
ADI.............63  105 105 105 105 105 105 105 105 102
Vrate kt-ft/1K..49  112 197 201 204 208 199 184 176 151
Ventrate Cat....FR  VGD EXL EXL EXL EXL EXL EXL EXL EXL
Ceiling (kft)...9.0 20  20  25  25  7.0 7.0 10  15  20

.TONIGHT...

Sky/weather.........Mostly clear.
CWR.................0 percent.
Min temperature.....Around 25.
Max humidity........60 percent.
Dewpoint............12.
Min apparent temp...14.
Surface winds (mph).West winds 13 to 16 mph with gusts to around 30
                    mph.
Wind (20 ft)........West winds 13 to 16 mph with gusts to around 30
                    mph.
Mixing height.......2000 ft AGL.
Transport winds.....Northwest 22 to 29 mph.
Smoke dispersal.....Excellent (122500 knot-ft) early in the evening
                    decreasing to good (38900 knot-ft) late in the
                    night.
LVORI...............2.
ADI.................31 to 39 decreasing to 29 early in the morning.
CEILING (KFT).......13 increasing to 25.
Eye level winds.....West winds 8 to 10 mph with gusts to around 18
                    mph.

TIME (EST)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........12     8      9      3      3      2
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
CWR.............0      0      0      0      0      0
Temp............31     29     28     27     26     26
Dewpoint........13     13     11     12     13     13
RH..............47     51     48     53     57     57
Heat index (F)..20     18     16     15     14     15
20 ft wind......W 16   W 15   W 15   W 15   W 14   W 13
20 ft wind gust.30     29     28     26     25     25
Eye level wind..W 10   W 9    W 9    W 9    W 8    W 8
Eye lvl wnd gst.18     17     17     16     15     15
Surface wind....W 16   W 15   W 15   W 15   W 14   W 13
Surface wnd gst.30     29     28     26     25     25
Mix hgt (ft)....4900   4000   3200   2700   2300   2100
Transport wind..W 29   W 26   NW 25  NW 24  NW 24  NW 23
LVORI...........1      1      1      1      1      1
ADI.............39     36     34     32     32     31
Vrate kt-ft/1K..123    92     70     56     49     42
Ventrate Cat....VYGD   GOOD   GOOD   FAIR   FAIR   FAIR
Ceiling (kft)...15     15     20     20     20     25

.SUNDAY...

Sky/weather.........Sunny then becoming mostly sunny.
CWR.................0 percent.
Max temperature.....Around 37.
Min humidity........45 percent.
Dewpoint............15 increasing to 23.
Min apparent temp...14.
Surface winds (mph).West winds 10 to 15 mph shifting to the
                    southwest 10 to 12 mph late in the afternoon.
Wind (20 ft)........West winds around 12 mph shifting to the
                    southwest 10 to 12 mph late in the afternoon.
Mixing height.......4200 ft AGL.
Transport winds.....West 18 to 21 mph shifting to the southwest 16
                    to 18 mph late in the afternoon.
Smoke dispersal.....Good (30400 knot-ft) early in the morning
                    increasing to excellent (66400 knot-ft) in the
                    afternoon.
LVORI...............2.
ADI.................14 increasing to 47 early in the morning, then
                    increasing to 62 to 68 early decreasing to 49
                    to 52 early increasing to 62 decreasing to 42
                    to 43 late in the afternoon.
CEILING (KFT).......25 decreasing to 4.5.
Eye level winds.....West winds 6 to 9 mph shifting to the southwest
                    6 to 7 mph late in the afternoon.

TIME (EST)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........4      9      28     39     47     51
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
CWR.............0      0      0      0      0      0
Temp............25     28     33     35     36     36
Dewpoint........13     13     14     17     19     22
RH..............60     53     45     47     50     56
Heat index (F)..14     19     24     26     27     28
20 ft wind......W 12   W 10   W 13   W 14   SW 14  SW 12
20 ft wind gust.23     23     24     23     23     23
Eye level wind..W 7    W 6    W 8    W 8    SW 8   SW 7
Eye lvl wnd gst.14     14     14     14     14     14
Surface wind....W 12   W 10   W 13   W 14   SW 14  SW 12
Surface wnd gst.23     23     24     23     23     23
Mix hgt (ft)....2000   3000   3400   3900   3700   2900
Transport wind..NW 21  NW 20  W 20   W 18   W 18   SW 18
LVORI...........2      1      1      1      1      1
ADI.............14     62     68     50     49     43
Vrate kt-ft/1K..36     50     59     63     60     47
Ventrate Cat....POOR   FAIR   FAIR   GOOD   FAIR   FAIR
Ceiling (kft)...25     25     9.0    8.0    6.0    5.0

$$
Forecaster...Dooley
Requested by...Joel Carlson
Type of request...WILDFIRE
.TAG 2505356.0/BOX
.DELDT 03/08/25
.FormatterVersion 2.0.0
.EMAIL joel.carlson@mass.gov