Spot Forecast
Issued by NWS Boston, MA

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FNUS71 KBOX 211204
FWSBOX

Spot Forecast for Belchertown Fair Day 1...Belchertown Fire Department
National Weather Service Boston/Norton MA
804 AM EDT Sat Sep 21 2024

Forecast is based on forecast start time of 0800 EDT on September 21.
If conditions become unrepresentative, contact the National
Weather Service.

.DISCUSSION...

Mainly dry conditions today with mostly cloudy skies, although a
brief shower is possible. Northerly winds 5 to 15 mph. Partly
sunny skies Sunday with northeast winds 5 to 15 mph.

.REST OF TODAY...

Sky/weather.........Cloudy.
Chance of pcpn......10 percent.
Chance of rain......37 percent.
Begin/end of pcpn...
Max temperature.....Around 67.
Min humidity........73 percent.
Max apparent temp...65.
Max apparent temp...65.
Max apparent temp...65.
Surface winds (mph).Northeast winds 8 to 9 mph.
Wind (20 ft)........Northeast winds 8 to 9 mph.
100 FT WIND.........
Rainfall amount.....0.00 inches.
Pcpn amount.........0.00 inches.
CEILING (KFT).......3.5 increasing to 4.5, then decreasing to 4.0
                    early in the afternoon increasing to 6.0 early
                    in the afternoon decreasing to 5.0.
Visibility..........10.
Mixing height.......2700 ft AGL.
Transport winds.....Northeast 14 to 16 mph.
Smoke dispersal.....Fair (15900 knot-ft) early in the morning
                    increasing to good (35300 knot-ft) in the
                    afternoon.
LVORI...............4.
ADI.................21 to 29 increasing to 26 to 35 early.

TIME (EDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........89  90  87  93  91  91  92  93  92  90
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).10  10  10  10  10  10  10  10  10  10
Chc of rain (%).20  30  20  20  20  30  30  30  30  40
Temp............58  60  61  63  64  65  65  64  64  63
RH..............90  87  87  81  78  75  75  75  73  75
Heat index (F)..58  60  61  63  64  65  65  64  64  63
Wind chill (F)..58  60  61  63  64  65  65  64  64  63
Aparnt tmp (F)..58  60  61  63  64  65  65  64  64  63
20 FT wind dir..NE  NE  NE  NE  NE  NE  NE  NE  NE  NE
20 FT wind spd..8   9   9   9   9   9   8   8   8   8
20 FT wind gust.17  16  16  16  15  15  14  14  14  14
Surface wnd dir.NE  NE  NE  NE  NE  NE  NE  NE  NE  NE
Surface wnd spd.8   9   9   9   9   9   8   8   8   8
Surface wnd gst.17  16  16  16  15  15  14  14  14  14
Mix hgt (kft)...1.3 1.7 2.1 2.4 2.5 2.6 2.7 2.4 2.2 1.9
Transp wind dir.NE  NE  NE  NE  NE  NE  NE  NE  NE  NE
Transp wind spd.14  15  15  16  16  15  15  15  14  14
100 ft wind.....
LVORI...........4   4   4   3   3   3   3   3   3   3
ADI.............21  26  29  35  35  33  34  32  28  26
Vrate kt-ft/1K..16  22  27  34  35  34  35  31  26  23
Ventrate Cat....PR  PR  PR  PR  PR  PR  PR  PR  PR  PR
Ceiling (kft)...3.5 4.0 4.5 5.0 4.0 6.0 6.0 6.0 5.0 5.0
Visibility (sm).10  10  10  10  10  10  10  10  10  10

.TONIGHT...

Sky/weather.........Mostly cloudy.
Chance of pcpn......10 percent.
Chance of rain......32 percent.
Begin/end of pcpn...
Min temperature.....Around 51.
Max humidity........93 percent.
Max apparent temp...61.
Max apparent temp...61.
Max apparent temp...61.
Surface winds (mph).Northeast winds around 7 mph.
Wind (20 ft)........Northeast winds around 7 mph.
100 FT WIND.........
Rainfall amount.....0.00 inches.
Pcpn amount.........0.00 inches.
CEILING (KFT).......3.5 increasing to 4.5 early in the evening,
                    then decreasing to 3.0 early increasing to 4.0
                    increasing to 6.0 increasing to 9.0 after
                    midnight.
Visibility..........8 decreasing to 7 early in the morning.
Mixing height.......400 ft AGL.
Transport winds.....Northeast 7 to 13 mph.
Smoke dispersal.....Fair (16500 knot-ft) early in the evening
                    decreasing to poor (2300 knot-ft) late in the
                    night.
LVORI...............5.
ADI.................21 decreasing to 5 to 7.

TIME (EDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........92  93  92  92  90  89  79  68  58  66  74  82
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).10  10  0   0   0   0   0   0   0   0   0   0
Chc of rain (%).30  30  20  20  20  20  20  10  0   0   0   0
Temp............61  58  57  55  55  55  54  54  53  52  52  53
RH..............81  86  90  93  90  90  90  86  89  93  93  89
Heat index (F)..61  58  57  55  55  55  54  54  53  52  52  53
Wind chill (F)..61  58  57  55  55  55  54  54  53  52  52  53
Aparnt tmp (F)..61  58  57  55  55  55  54  54  53  52  52  53
20 FT wind dir..NE  NE  NE  NE  NE  NE  NE  N   N   N   N   N
20 FT wind spd..7   7   7   7   7   7   7   7   7   7   7   7
20 FT wind gust.13  13  13  14  14  13  12  12  12  12  12  12
Surface wnd dir.NE  NE  NE  NE  NE  NE  NE  N   N   N   N   N
Surface wnd spd.7   7   7   7   7   7   7   7   7   7   7   7
Surface wnd gst.13  13  13  14  14  13  12  12  12  12  12  12
Mix hgt (kft)...1.5 1.1 0.7 0.6 0.6 0.5 0.5 0.5 0.4 0.4 0.4 0.4
Transp wind dir.NE  NE  NE  NE  NE  NE  NE  N   N   N   N   N
Transp wind spd.13  10  9   8   8   7   7   7   7   7   7   7
100 ft wind.....
LVORI...........3   5   5   6   6   6   6   5   6   6   6   6
ADI.............21  7   6   5   5   5   5   5   5   5   5   5
Vrate kt-ft/1K..17  10  6   5   4   3   3   3   3   3   2   2
Ventrate Cat....PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR
Ceiling (kft)...3.5 4.5 3.0 3.0 4.0 4.0 6.0 9.0 9.0 9.0 9.0 9.0
Visibility (sm).10  10  10  10  10  10  9   9   9   8   8   7

.SUNDAY...

Sky/weather.........Partly sunny. Patchy fog early in the morning.
Chance of pcpn......0 percent.
Chance of rain......0 percent.
Begin/end of pcpn...
Max temperature.....Around 68.
Min humidity........61 percent.
Max apparent temp...66.
Max apparent temp...66.
Max apparent temp...66.
Surface winds (mph).Northeast winds 7 to 9 mph.
Wind (20 ft)........Northeast winds 7 to 9 mph.
100 FT WIND.........
Rainfall amount.....0.00 inches.
Pcpn amount.........0.00 inches.
CEILING (KFT).......9.0 decreasing to 8.0 early in the morning,
                    then decreasing to 3.0 early increasing to 3.5
                    early increasing to 4.5 increasing to 6.0 late
                    in the afternoon.
Visibility..........8.
Mixing height.......4200 ft AGL.
Transport winds.....Northeast 7 to 14 mph.
Smoke dispersal.....Poor (2800 knot-ft) early in the morning
                    increasing to good (46400 knot-ft) in the
                    afternoon.
LVORI...............4.
ADI.................5 to 14 increasing to 32 to 37.

TIME (EDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........78  74  70  65  60  55  56  58  59  56  54  51
Weather cov.....PTY
Weather type....FOG
Tstm cov........
Chc of pcpn (%).0   0   0   0   0   0   0   0   0   0   0   0
Chc of rain (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............52  52  54  57  60  63  64  65  66  66  66  64
RH..............89  89  90  86  81  72  70  68  63  63  61  65
Heat index (F)..52  52  54  57  60  63  64  65  66  66  66  64
Wind chill (F)..52  52  54  57  60  63  64  65  66  66  66  64
Aparnt tmp (F)..52  52  54  57  60  63  64  65  66  66  66  64
20 FT wind dir..N   NE  NE  NE  NE  NE  NE  NE  NE  NE  NE  NE
20 FT wind spd..7   8   8   8   8   8   8   9   9   9   9   9
20 FT wind gust.12  13  13  14  14  15  15  15  15  15  15  15
Surface wnd dir.N   NE  NE  NE  NE  NE  NE  NE  NE  NE  NE  NE
Surface wnd spd.7   8   8   8   8   8   8   9   9   9   9   9
Surface wnd gst.12  13  13  14  14  15  15  15  15  15  15  15
Mix hgt (kft)...0.5 0.5 0.6 1.3 2.1 2.8 3.3 3.7 4.2 4.1 3.9 3.8
Transp wind dir.N   NE  NE  NE  NE  NE  NE  NE  NE  NE  E   E
Transp wind spd.7   8   8   9   10  13  13  13  13  13  14  14
100 ft wind.....
LVORI...........6   5   5   4   3   3   3   3   1   1   1   3
ADI.............5   6   8   14  21  29  32  34  36  36  37  37
Vrate kt-ft/1K..3   4   4   10  19  31  36  41  46  46  46  45
Ventrate Cat....PR  PR  PR  PR  PR  PR  PR  FR  FR  FR  FR  FR
Ceiling (kft)...9.0 8.0 3.0 3.3 3.7 4.0 4.0 4.0 3.5 4.5 5.0 6.0
Visibility (sm).8   8   9   9   9   10  10  10  10  10  10  10

$$
Forecaster...KJC
Requested by...Adam M. Burdick
Type of request...OTHER
.TAG 2422781.2/BOX
.DELDT 09/21/24
.FormatterVersion 2.0.0
.EMAIL aburdick@belchertown.org