Spot Forecast
Issued by NWS Boston, MA

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Spot Forecast for Camp Edwards - GLU4B...Natural Resources Program, Massachusetts Army
National Weather Service Boston/Norton MA
747 AM EDT Fri Sep 22 2023

Forecast is based on ignition time of 0800 EDT on September 22.
If conditions become unrepresentative, contact the National
Weather Service.

.DISCUSSION...

High pressure moves to just south of Nova Scotia today. This will
bring dry conditions, light winds and increasing mid to high
clouds. Rain spreads across the region Saturday as a subtropical
low moves to the mid atlantic coast.

Minimum relative humidities will range from 55 to 60 percent at
Camp Edwards today. On Saturday, minimum relative humidities range
from 80 to 90 percent at Camp Edwards.

.OUTLOOK...Sunday through Tuesday...

Subtropical low will bring unsettled conditions for Sunday and
Monday, followed by a trend toward drier conditions for the
remainder of next week.

.REST OF TODAY...

Sky/weather.........Partly sunny.
CWR.................0 percent.
Max temperature.....Around 68.
Min humidity........61 percent.
Dewpoint............54.
Max apparent temp...68.
Surface winds (mph).East winds 5 to 10 mph.
Wind (20 ft)........East winds 5 to 10 mph.
Mixing height.......3700 ft AGL.
Transport winds.....East 8 to 14 mph.
Smoke dispersal.....Poor (3700 knot-ft) early in the morning
                    increasing to good (43900 knot-ft) in the
                    afternoon.
LVORI...............4.
ADI.................8 to 17 increasing to 28, then increasing to 41
                    to 49 early decreasing to 36 late in the
                    afternoon.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.
CEILING (KFT).......25.

TIME (EDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........39  42  45  48  48  48  48  53  57  62
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0
Temp............58  61  64  67  68  67  67  66  66  65
Dewpoint........56  56  55  55  54  54  53  53  52  52
RH..............93  84  73  65  61  63  61  63  61  63
Heat index (F)..58  61  64  67  68  67  67  66  66  65
20 FT wind dir..E   E   E   E   E   E   E   E   E   E
20 FT wind spd..5   7   7   8   9   9   10  10  10  9
20 FT wind gust.10  12  10  12  12  12  13  14  14  15
Surface wnd dir.E   E   E   E   E   E   E   E   E   E
Surface wnd spd.5   7   7   8   9   9   10  10  10  9
Surface wnd gst.10  12  10  12  12  12  13  14  14  15
Mix hgt (kft)...0.5 1.2 2.1 2.9 3.6 3.7 3.4 3.2 3.1 2.5
Transp wind dir.E   E   E   E   E   E   E   E   E   E
Transp wind spd.8   10  10  12  13  14  13  14  13  13
LVORI...........6   4   3   1   1   1   1   1   1   1
ADI.............8   17  28  41  45  49  44  46  42  36
Haines index....3   3   3   3   3   3   3   3   4   4
Vrate kt-ft/1K..4   11  19  29  40  44  38  39  35  27
Ventrate Cat....PR  PR  PR  PR  PR  FR  PR  PR  PR  PR
Ceiling (kft)...25  25  25  25  25  25  25  25  25  25

.TONIGHT...

Sky/weather.........Mostly cloudy.
CWR.................0 percent.
Min temperature.....Around 56.
Max humidity........90 percent.
Dewpoint............52.
Max apparent temp...63.
Surface winds (mph).East winds 7 to 9 mph.
Wind (20 ft)........East winds 7 to 9 mph.
Mixing height.......500 ft AGL.
Transport winds.....East 10 to 13 mph.
Smoke dispersal.....Poor (5000 knot-ft).
LVORI...............4.
ADI.................7 to 16.
Haines Index........4 to 5 or low to moderate potential for large
                    plume dominated fire growth.
CEILING (KFT).......25 decreasing to 6.0.

TIME (EDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........64  65  67  71  75  79  79  78  78  82  86  90
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Temp............63  61  59  58  58  57  56  56  56  56  57  57
Dewpoint........52  53  53  53  53  53  53  53  53  53  53  53
RH..............67  75  80  83  83  86  90  90  90  90  86  86
Heat index (F)..63  61  59  58  58  57  56  56  56  56  57  57
20 FT wind dir..E   E   E   E   E   E   E   E   E   E   E   E
20 FT wind spd..9   8   7   7   7   7   8   8   8   9   9   9
20 FT wind gust.15  14  14  14  14  14  14  14  15  15  15  16
Surface wnd dir.E   E   E   E   E   E   E   E   E   E   E   E
Surface wnd spd.9   8   7   7   7   7   8   8   8   9   9   9
Surface wnd gst.15  14  14  14  14  14  14  14  15  15  15  16
Mix hgt (kft)...1.1 0.6 0.6 0.5 0.5 0.6 0.7 0.7 0.7 0.7 0.8 0.6
Transp wind dir.E   E   E   E   E   E   E   E   E   E   E   E
Transp wind spd.12  10  10  12  12  10  12  13  12  13  13  13
LVORI...........3   3   4   4   4   5   5   5   5   5   5   5
ADI.............16  9   7   8   8   7   10  11  10  11  11  11
Haines index....4   4   4   4   4   4   4   4   4   4   5   5
Vrate kt-ft/1K..11  5   6   5   5   5   7   8   7   8   9   7
Ventrate Cat....PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR
Ceiling (kft)...25  25  25  25  25  25  10  10  8.0 8.0 8.0 6.0

.SATURDAY...

Sky/weather.........Cloudy. Rain.
CWR.................0 percent increasing to 100 percent through
                    early afternoon.
Max temperature.....Around 63.
Min humidity........86 percent.
Dewpoint............55 increasing to 58 in the afternoon.
Max apparent temp...62.
Surface winds (mph).Northeast winds 9 to 17 mph.
Wind (20 ft)........Northeast winds 9 to 17 mph.
Mixing height.......1600 ft AGL.
Transport winds.....East 13 to 22 mph shifting to the northeast
                    around 23 mph late in the afternoon.
Smoke dispersal.....Poor (5700 knot-ft) early in the morning
                    increasing to fair (28500 knot-ft) in the
                    afternoon.
LVORI...............4.
ADI.................14 to 18 increasing to 37.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.
CEILING (KFT).......5.0 decreasing to 0.8.

TIME (EDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........92     96     99     100    100    100
Weather cov.....S CHC  CHANCE LIKELY DEFNTE DEFNTE DEFNTE
Weather type....RAIN   RAIN   RAIN   RAIN   RAIN   RAIN
Tstm cov........
CWR.............0      100    100    100    100    100
Temp............57     58     59     61     62     62
Dewpoint........53     54     56     58     59     59
RH..............86     86     90     90     90     90
Heat index (F)..57     58     59     61     62     62
20 ft wind......E 9    E 10   E 12   E 14   NE 15  NE 16
20 ft wind gust.16     18     20     21     24     25
Surface wind....E 9    E 10   E 12   E 14   NE 15  NE 16
Surface wnd gst.16     18     20     21     24     25
Mix hgt (ft)....500    1000   1600   1500   1400   1400
Transport wind..E 13   E 14   E 16   E 18   E 21   NE 22
LVORI...........4      4      4      4      4      4
ADI.............14     18     27     30     33     35
Haines index....4      3      3      3      3      3
Vrate kt-ft/1K..6      13     22     24     26     27
Ventrate Cat....POOR   POOR   POOR   POOR   POOR   POOR
Ceiling (kft)...5.0    3.0    1.5    0.8    0.8    0.8

$$
Forecaster...BL
Requested by...Joel Carlson
Type of request...PRESCRIBED
.TAG 2321237.0/BOX
.DELDT 09/22/23
.FormatterVersion 2.0.0
.EMAIL joel.r.carlson.nfg@army.mil
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