Spot Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
090
FNUS71 KBOX 130741
FWSBOX
Spot Forecast for Camp Cachalot WMA Rx Fire 5/13/2024...MassWildlife
National Weather Service Boston/Norton MA
341 AM EDT Mon May 13 2024
Forecast is based on ignition time of 0500 EDT on May 13.
If conditions become unrepresentative, contact the National
Weather Service.
.DISCUSSION...
High pressure to the south will bring sunshine and milder
temperatures with light west winds turning south 10-15 mph this
afternoon. Minimum RH values will drop to near 50 percent this
afternoon.
.TODAY...
Sky/weather.........Mostly sunny.
CWR.................0 percent.
Max temperature.....Around 65.
Min humidity........52 percent.
Dewpoint............45.
Max apparent temp...64.
Surface winds (mph).West winds 5 to 6 mph shifting to the south 7
to 12 mph in the afternoon.
Wind (20 ft)........West winds around 5 mph shifting to the south 7
to 12 mph in the afternoon.
Mixing height.......5400 ft AGL.
Transport winds.....West 7 to 10 mph shifting to the southwest 9 to
16 mph in the afternoon.
Smoke dispersal.....Poor (3500 knot-ft) early in the morning
increasing to good (39800 knot-ft) in the
afternoon.
LVORI...............4.
ADI.................9 to 15 increasing to 24 to 32 late in the
morning, then increasing to 42 to 44 early
increasing to 49 to 53 early in the afternoon
decreasing to 40 to 43.
Haines Index........3 or very low potential for large plume
dominated fire growth.
CEILING (KFT).......13 increasing to 25 through early afternoon,
then decreasing to 20 in the afternoon
decreasing to 11 late in the afternoon.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........37 32 27 22 18 13 22 30 39 40 41 42
Weather cov.....
Weather type....
Tstm cov........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
Temp............46 48 52 57 60 62 64 64 63 63 62 61
Dewpoint........44 45 46 46 46 46 46 46 46 46 46 46
RH..............93 89 80 67 60 56 52 52 54 54 56 58
Heat index (F)..44 46 52 57 60 62 64 64 63 63 62 61
20 FT wind dir..W W W W W SW SW S S S S S
20 FT wind spd..5 5 6 5 6 6 7 8 10 10 12 12
20 FT wind gust.10 12 10 8 7 7 8 9 12 13 14 16
Surface wnd dir.W W W W W SW SW S S S S S
Surface wnd spd.5 5 6 5 6 6 7 8 10 10 12 12
Surface wnd gst.10 12 10 8 7 7 8 9 12 13 14 16
Mix hgt (kft)...0.4 0.5 1.2 2.3 3.6 5.1 5.4 5.0 4.3 3.2 2.5 2.0
Transp wind dir.W W W W W W W SW SW SW SW SW
Transp wind spd.9 10 9 8 7 7 7 9 10 13 15 16
LVORI...........6 5 4 3 1 1 1 1 1 1 1 1
ADI.............9 10 15 24 32 44 42 53 53 49 43 40
Haines index....3 3 3 3 3 3 3 3 3 3 3 3
Vrate kt-ft/1K..4 5 10 16 22 31 32 40 39 35 32 29
Ventrate Cat....PR PR PR PR PR PR PR PR PR PR PR PR
Ceiling (kft)...13 14 25 25 25 25 25 20 20 20 20 11
.TONIGHT...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Slight chance of rain showers after midnight.
CWR.................0 percent.
Min temperature.....Around 49.
Max humidity........89 percent.
Dewpoint............46.
Max apparent temp...58.
Surface winds (mph).Southwest winds 8 to 10 mph.
Wind (20 ft)........Southwest winds 8 to 10 mph.
Mixing height.......500 ft AGL.
Transport winds.....Southwest 14 to 16 mph.
Smoke dispersal.....Fair (23500 knot-ft) early in the evening
decreasing to poor (6000 knot-ft) late in the
night.
LVORI...............3.
ADI.................26 to 35 decreasing to 12 to 14 until just
after midnight.
Haines Index........3 to 4 or very low to low potential for large
plume dominated fire growth.
CEILING (KFT).......10 decreasing to 9.0 early in the evening, then
decreasing to 7.0 in the late evening and
overnight increasing to 8.0 early in the
morning.
TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
Sky (%).........46 53 68 74 73 75
Weather cov..... S CHC
Weather type....NONE NONE NONE NONE RNSHWR NONE
Tstm cov........
CWR.............0 0 0 0 0 0
Temp............58 53 51 50 50 51
Dewpoint........46 46 45 45 45 46
RH..............64 77 80 83 83 83
Heat index (F)..58 53 51 47 46 51
20 ft wind......S 10 S 9 SW 8 SW 8 SW 9 S 10
20 ft wind gust.16 16 15 16 15 16
Surface wind....S 10 S 9 SW 8 SW 8 SW 9 S 10
Surface wnd gst.16 16 15 16 15 16
Mix hgt (ft)....1700 1200 500 500 500 500
Transport wind..SW 16 SW 16 SW 15 S 14 SW 15 SW 15
LVORI...........1 4 4 4 4 4
ADI.............35 14 13 12 13 13
Haines index....3 3 3 3 3 4
Vrate kt-ft/1K..24 17 6 6 7 7
Ventrate Cat....POOR POOR POOR POOR POOR POOR
Ceiling (kft)...10 9.0 7.0 7.0 7.0 7.0
.TUESDAY...
Sky/weather.........Partly sunny.
CWR.................0 percent.
Max temperature.....Around 69.
Min humidity........61 percent.
Dewpoint............50 increasing to 53 in the afternoon.
Max apparent temp...67.
Surface winds (mph).Southwest winds 10 to 17 mph. Gusts up to 28
mph through early afternoon.
Wind (20 ft)........Southwest winds 10 to 17 mph. Gusts up to 28
mph through early afternoon.
Mixing height.......1900 ft AGL.
Transport winds.....Southwest 16 to 25 mph.
Smoke dispersal.....Poor (9300 knot-ft) early in the morning
increasing to good (40600 knot-ft) in the
afternoon.
LVORI...............3.
ADI.................12 to 13 increasing to 31 early, then
increasing to 46 to 52 late in the morning
increasing to 51 to 58 early decreasing to 46
decreasing to 35 late in the afternoon.
Haines Index........4 to 5 or low to moderate potential for large
plume dominated fire growth.
CEILING (KFT).......8.0 increasing to 15 early, then increasing to
20 early increasing to 25 late in the afternoon
decreasing to 15.
TIME (EDT) 6 AM 9 AM NOON 3 PM
Sky (%).........69 50 44 60
Weather cov.....
Weather type....NONE NONE NONE NONE
Tstm cov........
CWR.............0 0 0 0
Temp............51 60 66 66
Dewpoint........48 51 52 53
RH..............89 72 61 63
Heat index (F)..51 60 66 66
20 FT wind......S 10G17 SW 14G20 SW 16G24 SW 17G26
Surface wind....S 10G17 SW 14G20 SW 16G24 SW 17G26
Mix hgt (ft)....600 1600 1900 1600
Transport wind..SW 17 SW 22 SW 24 SW 24
LVORI...........5 3 1 1
ADI.............13 46 56 51
Haines index....4 5 5 4
Vrate kt-ft/1K..9 31 40 34
Ventrate Cat....POOR POOR POOR POOR
Ceiling (kft)...8.0 15 20 25
$$
Forecaster...KJC
Requested by...Alex Entrup
Type of request...PRESCRIBED
.TAG 2413881.0/BOX
.DELDT 05/13/24
.FormatterVersion 2.0.0
.EMAIL alex.entrup@mass.gov