FNUS71 KBOX 201901 FWSBOX Spot Forecast for Sharpener pond Rd...North Andover fire National Weather Service Boston/Norton MA 201 PM EST Wed Nov 20 2024 Forecast is based on forecast start time of 1500 EST on November 20. If conditions become unrepresentative, contact the National Weather Service. .DISCUSSION... ...ELEVATED FIRE WEATHER CONCERNS TODAY... North Andover Light northeast winds less than 5 knots becoming east by this evening. No gusty winds expected today. MinRH bottoms out around 50-55 percent. This is the last day of dry weather. Rain arrives Thursday morning and continues through the day, into the first half of Thursday night. One inch or slightly more is expected. East winds will increase on Thursday, 10 to 15 mph sustained with gusts to 25 mph. Minimum RH values today will range between 45 to 60 percent, and over 80 percent on Thursday. .REST OF TODAY... Sky/weather.........Mostly sunny. CWR.................0 percent. Max temperature.....Around 55. Min humidity........63 percent. Wind (20 ft)........Northeast winds 5 to 6 mph late in the afternoon becoming light. Mixing height.......1400 ft AGL. Transport winds.....Northeast 6 to 7 mph. Smoke dispersal.....Poor (5300 knot-ft). Haines Index........2 to 3 or very low potential for large plume dominated fire growth. Eye level winds.....Northeast winds up to 4 mph late in the afternoon becoming light. TIME (EST) 3PM 4PM 5PM Sky (%).........16 27 45 Weather cov..... Weather type.... Tstm cov........ CWR.............0 0 0 Temp............53 51 49 RH..............66 74 80 20 FT wind dir..NE NE E 20 FT wind spd..6 5 3 20 FT wind gust.8 7 7 Eye lvl wnd dir.NE NE E Eye lvl wnd spd.4 3 2 Eye lvl wnd gst.5 4 4 Mix hgt (kft)...1.4 1.3 1.1 Transp wind dir.NE NE NE Transp wind spd.7 6 6 Haines index....3 2 2 Vrate kt-ft/1K..9 6 5 Ventrate Cat....PR PR PR .TONIGHT... Sky/weather.........Mostly cloudy. Patchy fog. Chance of rain early in the morning. CWR.................0 percent. Min temperature.....Around 41. Max humidity........96 percent. Wind (20 ft)........Light winds becoming northeast 5 to 8 mph after midnight. Mixing height.......400 ft AGL. Transport winds.....East 6 to 15 mph increasing to around 16 mph early in the morning. Smoke dispersal.....Fair (18100 knot-ft) early in the evening decreasing to poor (2100 knot-ft) late in the night. Haines Index........2 to 3 or very low potential for large plume dominated fire growth. Eye level winds.....Light winds becoming northeast up to 5 mph after midnight. TIME (EST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........55 62 75 70 72 79 84 87 91 93 93 96 Weather cov..... PTY CHC CHC Weather type.... FOG RN RN Tstm cov........ CWR.............0 0 0 0 0 0 0 0 0 0 0 0 Temp............46 45 44 44 44 44 44 45 45 45 45 45 RH..............86 89 93 93 96 93 93 96 93 89 93 93 20 FT wind dir..E E NE NE NE NE NE NE NE NE NE NE 20 FT wind spd..3 3 3 2 2 3 5 5 6 7 8 8 20 FT wind gust.8 9 9 8 8 9 9 10 12 13 14 15 Eye lvl wnd dir.E E NE NE NE NE NE NE NE NE NE NE Eye lvl wnd spd.2 2 2 1 1 2 3 3 4 4 5 5 Eye lvl wnd gst.5 5 5 5 5 5 5 6 7 8 8 9 Mix hgt (kft)...0.9 0.7 0.4 0.4 0.9 0.4 0.5 0.9 0.5 0.4 1.3 0.7 Transp wind dir.E E E E E E E E E E E E Transp wind spd.6 6 6 7 7 8 10 12 13 15 16 16 Haines index....2 2 2 2 2 2 2 2 2 2 3 3 Vrate kt-ft/1K..4 4 2 3 5 3 5 10 5 6 18 10 Ventrate Cat....PR PR PR PR PR PR PR PR PR PR PR PR .THURSDAY... Sky/weather.........Cloudy. Chance of rain early in the morning. Rain likely late in the morning, then rain in the afternoon. Patchy fog in the late morning and afternoon. CWR.................0 percent increasing to 100 percent. Max temperature.....Around 50. Min humidity........89 percent. Wind (20 ft)........Northeast winds 9 to 16 mph. Gusts up to 28 mph through early afternoon. Mixing height.......2000 ft AGL. Transport winds.....East 16 to 25 mph. Smoke dispersal.....Poor (11000 knot-ft) early in the morning increasing to good (39100 knot-ft) in the afternoon. Haines Index........3 or very low potential for large plume dominated fire growth. Eye level winds.....Northeast winds 5 to 10 mph. Gusts up to 28 mph through early afternoon. TIME (EST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........97 95 95 97 97 98 97 100 100 100 100 100 Weather cov.....CHC CHC CHC LKY LKY LKY DEF DEF DEF DEF DEF DEF Weather type....RN RN RN RN RN RN RN RN RN RN RN RN Tstm cov........ CWR.............0 100 100 100 100 100 100 100 100 100 100 100 Temp............45 45 46 46 47 48 48 48 48 48 48 48 RH..............93 93 96 100 96 93 93 96 89 96 93 93 20 FT wind dir..NE NE NE NE NE NE NE NE NE NE NE E 20 FT wind spd..9 10 9 9 12 13 13 14 14 15 15 16 20 FT wind gust.16 18 20 21 23 24 25 25 26 26 28 26 Eye lvl wnd dir.NE NE NE NE NE NE NE NE NE NE NE E Eye lvl wnd spd.5 6 5 5 7 8 8 8 8 9 9 10 Eye lvl wnd gst.10 11 12 13 14 14 15 15 16 16 17 16 Mix hgt (kft)...0.8 1.4 1.7 1.9 2.0 1.9 1.6 1.7 1.5 1.5 1.2 0.9 Transp wind dir.E E E E E E E E E E E E Transp wind spd.16 17 20 22 22 24 23 25 25 25 25 24 Haines index....3 3 3 3 3 3 3 3 3 3 3 3 Vrate kt-ft/1K..11 21 28 37 38 39 32 37 34 34 27 20 Ventrate Cat....PR PR PR PR PR PR PR PR PR PR PR PR $$ Forecaster...BRW Requested by...Deputy Graham Rowe Type of request...WILDFIRE .TAG 2426959.4/BOX .DELDT 11/20/24 .FormatterVersion 2.0.0 .EMAIL growe@nafd.us