Spot Forecast
Issued by NWS Portland, ME
Issued by NWS Portland, ME
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FNUS71 KGYX 241339
FWSGYX
Spot Forecast for Slash Burn...MEFS
National Weather Service Gray ME
939 AM EDT Tue Sep 24 2024
Forecast is based on ignition time of 1000 EDT on September 24.
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...
.REST OF TODAY...Mainly sunny with increasing high clouds late.
Light easterly flow expected to stay less than 10 mph, with min
humidity of 60-70%. Winds diminish tonight with lows falling to
the upper 40s, and humidity near 100% with light E-NE winds. Fog
is possible toward daybreak Wednesday. Mainly cloud with light
east winds on Wednesday.
Sky/weather.........Sunny (15-25 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....Around 62.
Min humidity........70 percent.
Dewpoint............51.
Max apparent temp...62.
Wind (20 ft)........East winds 7 to 8 mph.
Mixing height.......2200 ft AGL.
Transport winds.....East 8 to 14 mph.
Smoke dispersal.....Poor (10500 knot-ft) early in the morning
increasing to fair (24600 knot-ft) in the
afternoon.
LVORI...............4.
ADI.................20 increasing to 31 in the afternoon, then
decreasing to 24 late in the afternoon.
Haines Index........3 to 4 or very low potential for large plume
dominated fire growth to or low potential for
large plume dominated fire growth.
TIME (EDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........17 17 23 23 23 23 23 23
Weather cov.....
Weather type....
Tstm cov........NO NO NO NO NO NO NO NO
CWR.............0 0 0 0 0 0 0 0
LAL.............1 1 1 1 1 1 1 1
Temp............56 58 61 61 62 62 60 60
Dewpoint........52 52 52 52 52 52 51 51
RH..............86 80 72 72 70 70 72 72
Aparnt tmp (F)..56 58 61 61 62 62 60 60
20 FT wind dir..NE NE NE E E E E E
20 FT wind spd..8 8 8 8 9 9 8 8
20 FT wind gust.15 15 15 16 17 17 16 15
Mix hgt (kft)...1.5 2.0 2.2 2.1 2.0 2.2 1.6 1.5
Transp wind dir.E E E E E E E E
Transp wind spd.8 9 10 12 13 13 14 13
LVORI...........4 3 3 3 3 3 3 3
ADI.............16 23 28 29 31 34 29 24
Haines index....3 3 3 3 4 4 4 4
Vrate kt-ft/1K..11 16 20 21 22 25 20 17
Ventrate Cat....PR PR PR PR PR PR PR PR
.TONIGHT...
Sky/weather.........Partly cloudy (30-40 percent).
CWR.................0 percent.
LAL.................1.
Min temperature.....Around 48.
Max humidity........100 percent.
Dewpoint............50.
Max apparent temp...57.
Wind (20 ft)........East winds 5 to 7 mph in the evening becoming
light, then becoming northeast 5 to 6 mph
overnight.
Mixing height.......400 ft AGL.
Transport winds.....East 7 to 13 mph.
Smoke dispersal.....Poor (2700 knot-ft).
LVORI...............7.
ADI.................18 decreasing to 6.
Haines Index........4 or low potential for large plume dominated
fire growth.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........24 24 24 24 24 24 43 43 43 43 43 43
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
LAL.............1 1 1 1 1 1 1 1 1 1 1 1
Temp............57 56 54 53 53 51 51 50 48 48 48 48
Dewpoint........52 52 52 52 51 51 51 50 48 48 48 48
RH..............83 86 93 96 93 100 100 100 100 100 100 100
Aparnt tmp (F)..57 56 54 53 53 51 51 48 46 46 46 46
20 FT wind dir..E E E E E NE NE NE NE NE NE NE
20 FT wind spd..7 7 6 6 5 5 5 5 5 5 5 5
20 FT wind gust.14 13 12 10 9 10 10 10 10 10 9 9
Mix hgt (kft)...1.1 0.6 0.5 0.5 0.4 0.5 0.4 0.4 0.4 0.4 0.4 0.4
Transp wind dir.E E E E E E E NE NE NE NE NE
Transp wind spd.13 12 12 9 8 9 7 8 8 8 8 8
LVORI...........4 5 6 8 6 9 9 9 9 9 9 9
ADI.............18 8 8 4 4 4 3 4 4 5 5 5
Haines index....4 4 4 4 4 4 4 4 4 4 4 4
Vrate kt-ft/1K..12 6 5 4 3 4 3 3 3 3 3 3
Ventrate Cat....PR PR PR PR PR PR PR PR PR PR PR PR
.WEDNESDAY...
Sky/weather.........Mostly cloudy (70-80 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....Around 61.
Min humidity........81 percent.
Dewpoint............50 increasing to 55 in the late morning and
afternoon.
Max apparent temp...61.
Wind (20 ft)........East winds 6 to 7 mph.
Mixing height.......1400 ft AGL.
Transport winds.....East 8 to 13 mph.
Smoke dispersal.....Poor (3100 knot-ft) early in the morning
increasing to fair (15100 knot-ft) in the
afternoon.
LVORI...............6 in the morning and early afternoon.
ADI.................13 increasing to 19 late in the morning.
Haines Index........3 to 4 or very low potential for large plume
dominated fire growth to or low potential for
large plume dominated fire growth.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........71 71 71 71 71 71 78 78 78 78 78 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
LAL.............1 1 1 1 1 1 1 1 1 1 1 1
Temp............48 49 52 55 58 59 61 61 61 60 60 59
Dewpoint........48 49 52 55 55 56 56 56 55 56 55 55
RH..............100 100 100 100 90 90 84 84 81 87 84 87
Aparnt tmp (F)..46 47 52 55 58 59 61 61 61 60 60 59
20 FT wind dir..NE NE NE E E E E E E E E E
20 FT wind spd..5 6 6 7 8 9 9 9 9 9 9 9
20 FT wind gust.9 10 13 14 16 17 17 17 17 17 17 17
Mix hgt (kft)...0.4 0.5 0.7 1.1 1.2 1.4 1.3 1.3 1.3 1.2 1.1 0.9
Transp wind dir.E E E E E E E E E E E E
Transp wind spd.8 8 9 13 12 13 12 12 12 12 12 12
LVORI...........8 8 8 5 4 4 4 4 M M M M
ADI.............9 9 10 17 17 20 17 17 M M M M
Haines index....4 4 3 3 3 3 3 3 4 4 4 4
Vrate kt-ft/1K..3 3 6 12 12 15 13 13 13 12 11 10
Ventrate Cat....PR PR PR PR PR PR PR PR PR PR PR PR
$$
Forecaster...CEMPA
Requested by...Daniel Welch
Type of request...PRESCRIBED
.TAG 2422955.0/GYX
.DELDT 09/24/24
.FormatterVersion 2.0.0
.EMAIL daniel.welch@Maine.gov