Spot Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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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