Spot Forecast
Issued by NWS Portland, ME
Issued by NWS Portland, ME
367
FNUS71 KGYX 160818
FWSGYX
Spot Forecast for SJR Unit 2 and 7...The Nature Conservancy
National Weather Service Gray ME
418 AM EDT Wed Sep 16 2026
Forecast is based on ignition time of 0900 EDT on September 16.
If conditions become unrepresentative...contact the National Weather
Service.
Please contact our office at (207) 688-3224, if you have questions
or concerns with this forecast.
.DISCUSSION...
Sprinkles or a brief light rain shower can`t be completely ruled
out at the burn location this morning, but it will be an otherwise
dry day with a high temperature around 80 degrees and slightly
more humidity than yesterday with min RH expected to be in the
lower 50s. Surface winds will be light and mostly out of the south
to southwest but could be variable in direction at times,
especially this morning. Lower mixing heights and fairly light
transport winds are expected to yield poor smoke dispersion this
morning and fair dispersion this afternoon. Excellent RH recovery
is expected tonight.
.REST OF TODAY...
Sky/weather.........Partly sunny (35-45 percent).
CWR.................0 percent.
Chance of thunder...0 percent.
Max temperature.....Around 80.
Min humidity........53 percent.
Dewpoint............56 increasing to 61 in the afternoon.
Max apparent temp...81.
Wind (20 ft)........Light winds.
Mixing height.......3300 ft AGL.
Transport winds.....West 7 to 8 mph.
Smoke dispersal.....Poor (6400 knot-ft) early in the morning
increasing to fair (23000 knot-ft) in the
afternoon.
LVORI...............3.
ADI.................14 increasing to 21 early in the afternoon,
then increasing to 32 late in the afternoon
decreasing to 22 late in the afternoon.
TIME (EDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........45 34 34 30 27 32 34 44 55
Weather cov.....
Weather type....
Tstm cov........NO NO NO NO NO NO NO NO NO
CWR.............0 0 0 0 0 0 0 0 0
Chc of thdr (%).0 0 0 0 0 0 0 0 0
Temp............60 65 70 74 77 78 79 80 78
Dewpoint........54 57 57 58 59 61 62 62 63
RH..............81 75 63 57 53 56 56 54 60
Aparnt tmp (F)..60 65 70 74 77 78 79 81 78
20 FT wind dir..S SW SW SW SW SW SW SW W
20 FT wind spd..1 2 3 3 4 5 4 3 2
20 FT wind gust.2 3 5 6 7 8 7 7 5
Mix hgt (kft)...0.9 1.4 1.7 2.1 2.6 3.0 3.2 3.3 2.4
Transp wind dir.W W W W W W W W W
Transp wind spd.8 8 8 7 7 8 8 8 8
LVORI...........4 4 2 2 2 2 1 1 2
ADI.............9 14 18 19 22 30 32 33 22
Vrate kt-ft/1K..6 10 12 13 16 21 23 23 17
Ventrate Cat....PR PR PR PR PR PR PR PR PR
.TONIGHT...
Sky/weather.........Partly cloudy (35-45 percent) then becoming
mostly cloudy (60-70 percent).
CWR.................0 percent.
Chance of thunder...0 percent.
Min temperature.....Around 55.
Max humidity........100 percent.
Dewpoint............61 decreasing to 57 overnight.
Max apparent temp...76.
Wind (20 ft)........Light winds.
Mixing height.......400 ft AGL.
Transport winds.....West 5 to 6 mph shifting to the north around 5
mph in the late evening and overnight.
Smoke dispersal.....Poor (1700 knot-ft).
LVORI...............7.
ADI.................4.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........32 37 39 39 50 67 55 66 66 60 63 78
Weather cov.....
Weather type....
Tstm cov........NO NO NO NO NO NO NO NO NO NO NO NO
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............76 73 68 65 63 62 61 60 59 57 57 57
Dewpoint........63 63 62 61 60 59 59 58 57 57 57 56
RH..............64 71 81 87 90 90 93 93 93 100 100 96
Aparnt tmp (F)..76 73 68 65 63 62 61 60 59 57 57 57
20 FT wind dir..W W N N N N N N N N N N
20 FT wind spd..1 1 0 0 0 0 0 0 0 0 0 0
20 FT wind gust.2 2
Mix hgt (kft)...0.7 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.W W NW N N N N N N N N N
Transp wind spd.6 5 5 5 5 5 5 5 5 5 5 5
LVORI...........3 3 5 6 7 7 7 7 7 10 10 8
ADI.............6 2 2 2 2 2 2 2 2 2 2 2
Vrate kt-ft/1K..4 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
.THURSDAY...
Sky/weather.........Mostly cloudy (75-85 percent). Chance of rain
showers late in the afternoon.
CWR.................0 percent increasing to 42 percent early in the
morning.
Chance of thunder...12 percent.
Max temperature.....Around 73.
Min humidity........73 percent.
Dewpoint............57 increasing to 62 in the late morning and
afternoon.
Max apparent temp...72.
Wind (20 ft)........Light winds.
Mixing height.......2500 ft AGL.
Transport winds.....Northeast around 5 mph shifting to the south 5
to 7 mph in the afternoon.
Smoke dispersal.....Poor (1700 knot-ft).
LVORI...............9 early in the morning.
ADI.................4 early in the morning.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........62 86 86 87 88 86 95 93 83 90 89 90
Weather cov..... CHC CHC CHC
Weather type.... RW RW RW
Tstm cov........NO NO NO NO NO NO NO NO NO NO NO NO
CWR.............0 0 40 40 40 40 40 40 40 40 40 40
Chc of thdr (%).0 0 0 0 0 0 0 0 0 0 0 10
Temp............56 57 59 62 66 68 70 71 71 72 72 71
Dewpoint........56 57 59 61 62 62 63 63 63 63 64 64
RH..............100 100 100 97 87 81 78 76 76 73 76 79
Aparnt tmp (F)..56 57 59 62 66 68 70 71 71 72 72 71
20 FT wind dir..N N N N N E E SE S S S S
20 FT wind spd..0 0 0 0 0 1 1 2 2 2 1 1
20 FT wind gust. 2 2 5 5 5 2 2
Mix hgt (kft)...0.4 0.4 0.5 1.0 1.6 2.0 2.0 2.5 2.3 1.7 1.6 1.1
Transp wind dir.NE NE NE E E E SE S S SW SW SE
Transp wind spd.5 5 5 5 6 6 5 6 5 7 7 6
LVORI...........9 9 M M M M M M M M M M
ADI.............4 4 M M M M M M M M M M
Vrate kt-ft/1K..2 2 2 4 8 10 8 13 9 10 10 6
Ventrate Cat....PR PR PR PR PR PR PR PR PR PR PR PR
$$
Forecaster...COMBS
Requested by...Michael Crawford
Type of request...PRESCRIBED
.TAG 2621962.0/GYX
.DELDT 09/16/26
.FormatterVersion 2.0.0
.EMAIL mcrawford@tnc.org