Spot Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
788
FNUS71 KBOX 070325
FWSBOX
Spot Forecast for Barre Heath Fire...DCR
National Weather Service Boston/Norton MA
1125 PM EDT Mon May 6 2024
Forecast is based on ignition time of 0900 EDT on May 07.
If conditions become unrepresentative, contact the National
Weather Service.
.DISCUSSION...
Light northerly winds will usher in somewhat drier air tonight
with RH values between 70 and 80 percent. High pressure will
bring warm and dry conditions Tuesday with minimum relative 30 to
40 percent and NW winds 5 to 10 mph.
.TUESDAY...
Sky/weather.........Sunny.
CWR.................0 percent.
Max temperature.....Around 74.
Min humidity........35 percent.
Dewpoint............45.
Max apparent temp...72.
Surface winds (mph).North winds 6 to 7 mph shifting to the
northwest 7 to 8 mph in the afternoon.
Wind (20 ft)........Northwest winds 6 to 8 mph.
Mixing height.......6300 ft AGL.
Transport winds.....Northwest 8 to 9 mph increasing to around 12
mph late in the afternoon.
Smoke dispersal.....Fair (18200 knot-ft) early in the morning
increasing to excellent (62900 knot-ft) in the
afternoon.
LVORI...............2.
Haines Index........5 or moderate potential for large plume
dominated fire growth.
TIME (EDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........3 4 4 4 13 7 10 11 18
Weather cov.....
Weather type....
Tstm cov........
CWR.............0 0 0 0 0 0 0 0 0
Temp............62 65 67 69 70 71 72 72 72
Dewpoint........47 46 46 45 44 43 43 44 44
RH..............58 50 47 42 39 36 35 37 37
Heat index (F)..62 65 67 69 70 71 72 72 72
20 FT wind dir..N N N NW NW NW W W NW
20 FT wind spd..6 6 6 7 7 8 8 8 8
20 FT wind gust.10 10 9 12 10 12 13 13 13
Surface wnd dir.N N N NW NW NW W W NW
Surface wnd spd.6 6 6 7 7 8 8 8 8
Surface wnd gst.10 10 9 12 10 12 13 13 13
Mix hgt (kft)...2.3 3.3 5.1 5.1 5.4 6.0 5.9 6.3 6.2
Transp wind dir.N N NW NW NW NW NW W NW
Transp wind spd.9 8 8 9 9 12 12 12 12
LVORI...........2 1 1 1 1 1 1 1 1
Haines index....5 5 5 5 5 5 5 5 5
Vrate kt-ft/1K..18 23 36 41 43 60 59 63 62
Ventrate Cat....PR PR PR FR FR GD FR GD GD
.TUESDAY NIGHT...
Sky/weather.........Partly cloudy then becoming clear then becoming
mostly cloudy then becoming partly cloudy then
becoming mostly cloudy. Slight chance of rain
showers early in the morning.
CWR.................6 percent.
Min temperature.....Around 49.
Max humidity........80 percent.
Dewpoint............44.
Max apparent temp...70.
Surface winds (mph).Northwest winds 6 to 7 mph shifting to the
north around 5 mph late in the evening, then
shifting to the northeast becoming light after
midnight becoming east around 5 mph.
Wind (20 ft)........Northwest winds around 7 mph decreasing to
around 6 mph early in the evening, then
shifting to the north around 5 mph late in the
evening shifting to the northeast becoming
light becoming east around 5 mph early in the
morning.
Mixing height.......400 ft AGL.
Transport winds.....Northwest 6 to 10 mph shifting to the northeast
6 to 7 mph in the late evening and early
morning, then shifting to the east 5 to 7 mph
early in the morning.
Smoke dispersal.....Good (37600 knot-ft) early in the evening
decreasing to poor (1600 knot-ft) late in the
night.
LVORI...............3.
Haines Index........3 to 4 or very low to low potential for large
plume dominated fire growth.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........21 12 3 48 4 62 54 46 38 41 45 51
Weather cov..... SCH SCH
Weather type.... RW RW
Tstm cov........
CWR.............0 0 0 0 0 0 0 0 10 10 10 10
Temp............70 67 62 60 57 55 53 52 51 50 50 50
Dewpoint........45 45 45 45 45 45 45 45 45 44 44 44
RH..............41 45 54 58 64 69 74 77 80 80 80 80
Heat index (F)..70 67 62 60 57 55 53 52 51 49 48 48
20 FT wind dir..NW NW NW N N NE NE NE NE E E E
20 FT wind spd..7 6 6 5 5 5 5 3 3 3 5 5
20 FT wind gust.10 9 8 7 7 6 6 6 6 6 6 6
Surface wnd dir.NW NW NW N N NE NE NE NE E E E
Surface wnd spd.7 6 6 5 5 5 5 3 3 3 5 5
Surface wnd gst.10 9 8 7 7 6 6 6 6 6 6 6
Mix hgt (kft)...4.2 0.9 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4
Transp wind dir.NW NW NW N NE NE NE E E E E SE
Transp wind spd.10 6 6 7 7 7 6 6 5 6 6 7
LVORI...........1 2 2 3 3 3 3 4 4 4 4 4
Haines index....4 4 4 4 4 4 4 4 4 4 3 3
Vrate kt-ft/1K..38 5 2 2 2 2 2 2 2 2 2 2
Ventrate Cat....PR PR PR PR PR PR PR PR PR PR PR PR
$$
Forecaster...KJC
Requested by...Alex Belote
Type of request...PRESCRIBED
.TAG 2413327.0/BOX
.DELDT 05/06/24
.FormatterVersion 2.0.0
.EMAIL alex.belote@mass.gov