244
FNUS71 KBOX 300056
FWSBOX

Spot Forecast for Millis SAR...Millis Police
National Weather Service Boston/Norton MA
856 PM EDT Wed May 29 2024

Forecast is based on forecast start time of 2200 EDT on May 29.
If conditions become unrepresentative, contact the National
Weather Service.

.DISCUSSION...

Mainly dry weather persists for the remainder of the evening...but
widespread rain overspreads the region after midnight and persists
into Thursday morning. The rain may be heavy for a time with
even a rumble or two of thunder possible. A drying trend is
expected for Thursday afternoon. Winds will be from the northeast
at 5 to 15 mph. Overnight low temps will drop into the 50s with
highs on Thursday only in the 60 to 65 degree range.

.REST OF TONIGHT...

Sky/weather.........Mostly cloudy. Scattered rain showers, then
                    rain likely and slight chance of thunderstorms
                    after midnight.
CWR.................11 percent increasing to 93 percent late in the
                    night.
Chance of pcpn......60 percent.
Chance of thunder...28 percent.
Min temperature.....Around 53.
Max humidity........90 percent.
Dewpoint............53.
Max apparent temp...64.
Max apparent temp...64.
Surface winds (mph).Light winds becoming north around 5 mph after
                    midnight, then becoming light late in the night
                    becoming north around 5 mph late in the night.
Mixing height.......300 ft AGL.
CEILING (KFT).......8.2 decreasing to 5.4.
Visibility..........9 decreasing to 6 late in the night.
Transport winds.....Northwest 2 to 3 mph shifting to the north 3 to
                    8 mph after midnight.
Smoke dispersal.....Poor (600 knot-ft).
LVORI...............4.
ADI.................1 to 5.

TIME (EDT)      10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........76  84  86  89  92  93  94  95
Weather cov.....ISO SCT CHC CHC CHC CHC CHC LKY
Weather type....RW  RW  RN  RN  RN  RN  RN  RN
Tstm cov........                ISO ISO SCH ISO
CWR.............10  10  10  10  90  90  90  90
Chc of pcpn (%).20  30  40  50  50  50  50  60
Chc of thdr (%).20  20  20  20  30  20  30  30
Temp............64  63  62  61  60  59  58  57
Dewpoint........54  55  54  54  54  53  52  53
RH..............70  75  75  78  81  80  80  86
Heat index (F)..64  63  62  61  60  59  58  57
Wind chill (F)..64  63  62  61  60  59  58  57
Surface wnd dir.N   NE  NE  N   N   N   N   N
Surface wnd spd.1   2   3   3   5   3   5   5
Surface wnd gst.5   5   6   7   8   9   10  12
Mix hgt (kft)...1.0 0.3 0.4 0.5 0.5 0.5 0.5 0.5
Transp wind dir.W   NW  NW  N   N   N   N   N
Transp wind spd.2   2   3   3   5   6   7   8
LVORI...........3   4   4   4   5   5   4   5
ADI.............1   1   2   2   3   3   5   5
Vrate kt-ft/1K..2   1   1   1   2   3   3   4
Ventrate Cat....PR  PR  PR  PR  PR  PR  PR  PR
Ceiling (kft)...8.9 8.2 9.1 9.0 7.4 7.5 6.2 5.4
Visibility (sm).10  10  10  10  10  9   9   6

.THURSDAY...

Sky/weather.........Mostly cloudy. Rain likely and slight chance of
                    thunderstorms in the morning, then chance of
                    rain in the afternoon.
CWR.................100 percent decreasing to 22 percent late in
                    the afternoon.
Chance of pcpn......60 percent.
Chance of thunder...28 percent.
Max temperature.....Around 61.
Min humidity........69 percent.
Dewpoint............51.
Max apparent temp...60.
Max apparent temp...60.
Surface winds (mph).North winds 5 to 8 mph.
Mixing height.......2100 ft AGL.
CEILING (KFT).......3.0 decreasing to 2.0 early in the morning,
                    then decreasing to 1.2 early decreasing to 0.9
                    late in the morning increasing to 1.0
                    decreasing to 0.9 early in the afternoon
                    increasing to 1.1 increasing to 2.2 late in the
                    afternoon.
Visibility..........6 decreasing to 4 early, then decreasing to
                    2.80 late in the morning increasing to 7 in the
                    late morning and afternoon.
Transport winds.....North 9 to 14 mph.
Smoke dispersal.....Poor (5600 knot-ft) early in the morning
                    increasing to fair (19800 knot-ft) in the
                    afternoon.
LVORI...............4.
ADI.................7 to 16 increasing to 26 to 28.

TIME (EDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........94  93  92  93  94  95  90  85  80  73  67  60
Weather cov.....LKY LKY LKY LKY CHC CHC CHC CHC CHC SCH SCH SCH
Weather type....RN  RN  RN  RN  RN  RN  RN  RN  RN  RN  RN  RN
Tstm cov........ISO SCH ISO
CWR.............90  90  100 100 100 100 100 100 20  20  20  20
Chc of pcpn (%).60  60  60  60  50  50  40  40  30  20  20  20
Chc of thdr (%).20  30  20  20  20  10  10  10  10  10  10  10
Temp............56  56  56  56  57  56  57  58  58  59  60  60
Dewpoint........52  53  52  52  51  51  50  51  51  51  51  50
RH..............86  90  86  86  80  83  77  77  77  75  72  69
Heat index (F)..56  56  56  56  57  56  57  58  58  59  60  60
Wind chill (F)..56  56  56  56  57  56  57  58  58  59  60  60
Surface wnd dir.NE  N   N   N   N   N   N   N   N   N   NE  NE
Surface wnd spd.5   5   6   7   8   8   7   8   8   8   7   6
Surface wnd gst.13  13  14  14  15  15  15  16  16  15  14  14
Mix hgt (kft)...0.7 0.9 1.1 1.1 1.2 1.3 1.5 1.6 1.8 1.9 2.0 2.1
Transp wind dir.N   N   N   N   N   N   N   N   N   N   N   N
Transp wind spd.9   12  13  13  14  14  14  13  13  12  12  10
LVORI...........5   5   4   4   3   4   3   3   3   3   3   3
ADI.............7   11  16  18  22  23  26  26  28  27  28  26
Vrate kt-ft/1K..6   9   12  13  15  16  18  18  20  19  20  19
Ventrate Cat....PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR
Ceiling (kft)...3.0 2.0 1.2 0.9 0.9 0.9 1.0 1.0 0.9 1.1 1.5 2.2
Visibility (sm).6   6   4   2.8 7   7   7   7   7   7   7   7

$$
Forecaster...Frank
Requested by...Chief Soffayer
Type of request...SAR
.TAG 2415320.0/BOX
.DELDT 05/29/24
.FormatterVersion 2.0.0
.EMAIL eberg@semrecc.gov