Spot Forecast
Issued by NWS Portland, ME
Issued by NWS Portland, ME
273
FNUS71 KGYX 120852
FWSGYX
Spot Forecast for Hollis Barrens South Gate Rx...The Nature Conservancy
National Weather Service Gray ME
452 AM EDT Sat Sep 12 2026
Forecast is based on ignition time of 0900 EDT on September 12.
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.
High pressure brings a dry and sunny day today. Light and variable
winds in the morning shift to southerly in the afternoon. RH
values drop into the 40%s this afternoon.
.REST OF TODAY...
Sky/weather.........Sunny (10-20 percent).
CWR.................0 percent.
Chance of thunder...0 percent.
Max temperature.....Around 73.
Min humidity........47 percent.
Dewpoint............47 increasing to 52 late in the afternoon.
Max apparent temp...71.
Wind (20 ft)........Light winds becoming south 5 to 7 mph late in
the morning.
Mixing height.......3900 ft AGL.
Transport winds.....South 6 to 13 mph.
Smoke dispersal.....Poor (5800 knot-ft) early in the morning
increasing to good (38800 knot-ft) in the
afternoon.
LVORI...............3.
ADI.................9 increasing to 21 late in the morning, then
increasing to 37 late in the morning increasing
to 49 early in the afternoon decreasing to 36.
TIME (EDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........5 2 10 15 15 12 5 22 30
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............53 59 63 67 69 70 70 71 68
Dewpoint........46 46 46 47 48 49 51 52 54
RH..............77 62 54 49 47 47 51 51 61
Aparnt tmp (F)..53 59 63 67 69 70 70 71 68
20 FT wind dir..SW S S S S S S S S
20 FT wind spd..2 3 6 7 7 8 8 9 9
20 FT wind gust.5 7 12 14 14 16 16 17 17
Mix hgt (kft)...1.2 2.5 3.4 3.7 3.9 3.9 3.6 3.1 2.2
Transp wind dir.S S S S S S S S S
Transp wind spd.6 8 10 10 12 12 12 12 13
LVORI...........4 2 1 1 1 1 1 1 1
ADI.............9 21 32 41 48 48 49 37 35
Vrate kt-ft/1K..6 17 31 33 39 39 36 32 24
Ventrate Cat....PR PR PR PR PR PR PR PR PR
.TONIGHT...
Sky/weather.........Partly cloudy (35-45 percent) then becoming
mostly cloudy (75-85 percent). Slight chance of
rain showers after 3 am.
CWR.................0 percent increasing to 14 percent early in the
evening.
Chance of thunder...8 percent.
Min temperature.....Around 52.
Max humidity........100 percent.
Dewpoint............54.
Max apparent temp...66.
Wind (20 ft)........South winds 6 to 7 mph early in the evening
becoming light.
Mixing height.......400 ft AGL.
Transport winds.....South 9 to 13 mph.
Smoke dispersal.....Fair (15500 knot-ft) early in the evening
decreasing to poor (3400 knot-ft) late in the
night.
LVORI...............6.
ADI.................20 decreasing to 5.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........48 32 38 42 50 48 72 80 91 83 88 84
Weather cov..... SCH SCH SCH
Weather type.... RW RW RW
Tstm cov........NO NO NO NO NO NO NO NO NO NO NO NO
CWR.............0 0 10 10 10 10 10 10 10 10 10 10
Chc of thdr (%).0 0 0 0 0 0 0 0 0 0 0 10
Temp............66 64 61 59 57 57 56 55 56 56 54 56
Dewpoint........54 54 53 54 55 55 55 54 53 54 54 54
RH..............65 70 75 83 93 93 96 96 90 93 100 93
Aparnt tmp (F)..66 64 61 59 57 57 56 55 56 56 54 56
20 FT wind dir..S S S S S S S S S S S S
20 FT wind spd..8 7 5 5 3 3 3 3 3 3 5 5
20 FT wind gust.16 14 9 9 7 7 7 7 7 7 9 9
Mix hgt (kft)...1.4 0.6 0.5 0.4 0.4 0.4 0.4 0.5 0.4 0.4 0.4 0.4
Transp wind dir.S S S S S S S S S S S S
Transp wind spd.13 12 10 9 9 9 9 10 9 9 9 9
LVORI...........3 3 4 5 6 6 8 8 6 6 9 6
ADI.............20 5 5 6 4 4 4 4 4 4 5 6
Vrate kt-ft/1K..16 6 4 4 4 3 4 4 4 3 4 4
Ventrate Cat....PR PR PR PR PR PR PR PR PR PR PR PR
.SUNDAY...
Sky/weather.........Cloudy (90-100 percent). Rain showers likely
early in the morning, then rain showers in the
late morning and early afternoon.
CWR.................14 percent increasing to 90 percent early in
the morning.
Chance of thunder...14 percent.
Max temperature.....Around 71.
Min humidity........90 percent.
Dewpoint............56 increasing to 66.
Max apparent temp...70.
Wind (20 ft)........Light winds becoming south 5 to 6 mph early in
the morning, then becoming light late in the
afternoon.
Mixing height.......1300 ft AGL.
Transport winds.....South 9 to 12 mph.
Smoke dispersal.....Poor (3600 knot-ft).
LVORI...............8 early in the morning.
ADI.................10 early in the morning.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........91 89 91 94 93 94 93 90 95 96 92 94
Weather cov.....LKY LKY LKY DEF DEF DEF DEF DEF DEF
Weather type....RW RW RW RW RW RW RW RW RW
Tstm cov........NO NO NO NO NO NO NO NO NO NO NO NO
CWR.............10 10 90 90 90 90 90 90 90 90 90 90
Chc of thdr (%).10 10 10 10 10 10 10 10 10 0 0 0
Temp............55 55 58 60 61 62 64 66 67 68 70 69
Dewpoint........55 55 58 60 61 62 64 65 66 67 67 66
RH..............100 100 100 100 100 100 100 97 97 97 90 90
Aparnt tmp (F)..55 55 58 60 61 62 64 66 67 68 70 69
20 FT wind dir..S S S S S S S S S S S S
20 FT wind spd..5 5 6 7 7 7 7 6 6 5 5 5
20 FT wind gust.9 9 12 14 14 14 14 12 12 9 9 9
Mix hgt (kft)...0.5 0.5 0.7 0.9 1.0 1.0 1.2 1.2 1.1 1.1 1.3 0.9
Transp wind dir.S S S S S S S S S S S S
Transp wind spd.9 9 9 10 10 10 12 12 12 10 9 9
LVORI...........8 8 M M M M M M M M M M
ADI.............10 10 M M M M M M M M M M
Vrate kt-ft/1K..4 4 5 8 9 9 12 12 11 10 10 8
Ventrate Cat....PR PR PR PR PR PR PR PR PR PR PR PR
$$
Forecaster...CLAIR
Requested by...Jon Bailey
Type of request...PRESCRIBED
.TAG 2621666.0/GYX
.DELDT 09/12/26
.FormatterVersion 2.0.0
.EMAIL jbailey@tnc.org