Spot Forecast
Issued by NWS Caribou, ME
Issued by NWS Caribou, ME
590
FNUS71 KCAR 311200
FWSCAR
Spot Forecast for Machias River Red Pine RX...MAINE FOREST SERVICE
National Weather Service Caribou ME
800 AM EDT Mon Aug 31 2026
Forecast is based on ignition time of 0840 EDT on August 31.
If conditions become unrepresentative...contact the National Weather
Service.
Please contact NWS Caribou at 207-492-0166 with any further questions.
.DISCUSSION...
Expecting a dry day today with mainly sunny skies. Air
temperatures into the mid 70s, NW sustained winds today 5-10mph
with occasional gusts 12-15mph from late morning until sunset.
Given the NW downslope winds off the Longfellow Mtns have lowered
minimum RHs for this afternoon. Expecting RHs to bottom out
between 40-44% at the RX site. Winds will relax by sunset and
shift S-SW between 7-9PM at 5mph or less then becomes calm by 9PM.
RHs will recover to near 100% tonight with some ground fog
possible. On Tuesday, mostly sunny early becoming partly sunny in
the afternoon with temperatures into the mid 70s. E winds around
5-10mph early shifting SE by midday 5-10mph. Minimum RHs down to
40-45% will slowly increase in the afternoon to 45-55% as the
winds shift SE off the Gulf of Maine waters.
Beyond...Wednesday starts the day partly cloudy with near 100%
RHs. The day remains dry with temperatures into the low 70s. SE
winds 5-15mph and minimum RHs down to 60-65%. Wetting rains likely
late Wednesday Night into Friday.
Weather Coverage Abbreviations... SCH=Slight Chance, ISO=Isolated,
CHC=Chance, SCT=Scattered, LKY=Likely, NUM=Numerous,
DEF=Definite, WID=Widespread, OCL=Occasional, PDS=Periods,
ARS=Areas, PTY=Patchy
Weather Type Abbreviations... DYT=Dry Thunderstorms, TSM=Thunderstorms,
SN=Snow, RN=Rain, SW=Snow Showers, RW=Rain Showers,
DZL=Drizzle, FZR=Freezing Rain, FZD=Freezing Drizzle, SLT=Sleet,
FZF=Freezing Fog, IFG=Ice Fog, HAZ=Haze, BSN=Blowing Snow,
SMK=Smoke, FST=Frost, FZS=Freezing Spray, RS=Rain/Snow,
DZF=Drizzle/Fog, SNF=Snow/Fog, RNF=Rain/Fog,
ZRS=Freezing Rain/Snow
Other Abbreviations... NA=Not Available, M=Missing
.TODAY...
Sky/weather.........Sunny (5-15 percent).
CWR.................0 percent.
Chance of thunder...0 percent.
Max temperature.....Around 74.
Min humidity........41 percent.
Wind chill..........56.
Eye level winds.....Light winds becoming northwest around 4 mph in
the late morning and early afternoon, then
becoming light late in the afternoon.
Wind shift..........
Mixing height.......4700 ft AGL.
Transport winds.....Northwest 9 to 14 mph.
Smoke dispersal.....Poor (12800 knot-ft) early in the morning
increasing to good (42600 knot-ft) in the
afternoon.
LVORI...............3.
ADI.................19 increasing to 29 late in the morning, then
increasing to 49 late in the morning increasing
to 53 to 59 late in the morning decreasing to
47.
Pcpn amount.........0.00 inches.
TIME (EDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........5 10 10 11 12 12 13 13 14 13
Weather cov.....
Weather type....
Tstm cov........
CWR.............0 0 0 0 0 0 0 0 0 0
Chc of thdr (%).0 0 0 0 0 0 0 0 0 0
Temp............56 60 63 67 69 71 72 73 73 74
RH..............83 72 62 54 51 47 44 43 43 41
Wind chill (F)..56 60 63 67 69 71 72 73 73 74
Eye lvl wnd dir.NW NW NW NW NW NW NW NW NW NW
Eye lvl wnd spd.3 4 4 4 4 4 4 4 3 3
Eye lvl wnd gst.5 6 8 8 8 7 7 7 5 5
Mix hgt (kft)...1.2 1.8 2.8 3.5 4.0 4.3 4.7 4.7 4.6 4.3
Transp wind dir.N N N N NW NW NW NW NW NW
Transp wind spd.13 13 14 14 12 10 10 10 10 9
LVORI...........5 4 3 1 1 1 1 1 1 1
ADI.............19 29 49 59 55 53 57 57 56 47
Vrate kt-ft/1K..13 19 34 42 40 39 42 43 41 35
Ventrate Cat....PR PR PR FR FR PR FR FR FR PR
.TONIGHT...
Sky/weather.........Mostly clear (10-20 percent).
CWR.................0 percent.
Chance of thunder...0 percent.
Min temperature.....Around 52.
Max humidity........96 percent.
Wind chill..........52.
Eye level winds.....Light winds.
Wind shift..........
Mixing height.......400 ft AGL.
Transport winds.....Northwest 5 to 6 mph shifting to the northeast
around 6 mph after 3 am.
Smoke dispersal.....Poor (1500 knot-ft).
LVORI...............4 in the evening and overnight.
ADI.................2 to 9 in the evening and overnight.
Pcpn amount.........0.00 inches.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........10 7 6 10 13 17 18 20 21 23 25 27
Weather cov.....
Weather type....
Tstm cov........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
Chc of thdr (%).0 0 0 0 0 0 0 0 0 0 0 0
Temp............71 68 65 60 58 58 56 55 54 54 53 52
RH..............47 57 68 81 83 83 86 90 93 93 93 96
Wind chill (F)..71 68 65 60 58 58 56 55 54 54 53 52
Eye lvl wnd dir.NW W W W SW W W N N N N N
Eye lvl wnd spd.2 1 1 1 1 1 1 0 0 0 0 0
Eye lvl wnd gst.4 3 3
Mix hgt (kft)...1.2 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4
Transp wind dir.NW W W W W W NW N N NE NE NE
Transp wind spd.6 5 5 5 5 5 5 6 6 6 6 6
LVORI...........2 3 3 5 5 5 6 6 M M M M
ADI.............9 5 2 2 2 2 2 3 M M M M
Vrate kt-ft/1K..6 2 2 2 2 2 2 2 2 2 2 2
Ventrate Cat....PR PR PR PR PR PR PR PR PR PR PR PR
.TUESDAY...
Sky/weather.........Mostly sunny (25-35 percent).
CWR.................0 percent.
Chance of thunder...0 percent.
Max temperature.....Around 75.
Min humidity........45 percent.
Wind chill..........53.
Eye level winds.....Light winds.
Wind shift..........
Mixing height.......6400 ft AGL.
Transport winds.....East 6 to 7 mph shifting to the southeast 7 to
10 mph in the afternoon.
Smoke dispersal.....Poor (2100 knot-ft) early in the morning
increasing to good (46100 knot-ft) in the
afternoon.
LVORI...............MISSING.
ADI.................MISSING.
Pcpn amount.........0.00 inches.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........25 22 20 24 27 31 32 33 34 36 37 39
Weather cov.....
Weather type....
Tstm cov........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
Chc of thdr (%).0 0 0 0 0 0 0 0 0 0 0 0
Temp............53 56 58 64 68 71 74 74 74 75 73 72
RH..............93 93 87 73 61 55 48 48 46 45 49 51
Wind chill (F)..53 56 58 64 68 71 74 74 74 75 73 72
Eye lvl wnd dir.N NE NE E NE E E E E SE SE SE
Eye lvl wnd spd.0 1 1 1 1 2 2 2 2 3 2 2
Eye lvl wnd gst. 3 4 4 4 4 5 4 4
Mix hgt (kft)...0.4 0.4 0.7 1.7 3.2 4.8 5.6 6.4 6.4 5.1 3.6 3.1
Transp wind dir.NE NE NE E E E E E E SE SE SE
Transp wind spd.6 6 7 7 7 7 6 7 7 10 9 8
LVORI...........M M M M M M M M M M M M
ADI.............M M M M M M M M M M M M
Vrate kt-ft/1K..2 2 4 10 19 29 28 38 39 46 29 22
Ventrate Cat....PR PR PR PR PR PR PR PR PR FR PR PR
$$
Forecaster...JS
Requested by...W. Hatch
Type of request...PRESCRIBED
.TAG 2620941.1/CAR
.DELDT 08/31/26
.FormatterVersion 2.0.0
.EMAIL wesley.hatch@maine.gov