Spot Forecast
Issued by NWS Portland, ME
Issued by NWS Portland, ME
039
FNUS71 KGYX 121902
FWSGYX
Spot Forecast for Snow Mountain...NECC Dispatch
National Weather Service Gray ME
302 PM EDT Sat Jul 12 2025
Forecast is based on forecast start time of 1500 EDT on July 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.
Broken to overcast skies today as SE flow continues to spill over
the higher terrain. Where clearing has occurred this morning and
afternoon, the environment will be unstable. This will lead to
isolated to scattered showers and thunderstorms through early
evening. Storms will have the tendency to develop near topographic
features, remaining nearly stationary for an hour or so before
meandering away in weak steering flow. Rainfall rates under these
showers and storms may be heavy, with 1 to 2 inches per hour
possible. Gusty winds may also accompany any stronger storms that
develop, but stronger wind gust probability is low.
Loss of instability overnight will reduce winds and coverage of
showers and storms, with mostly dry conditions expected tonight
and Sunday morning. Stratus and fog is expected to settle across
the area, with good moisture recovery at elevation. Outside of
rainfall from storms today, the next chance at wetting rain will
be Monday afternoon.
.REST OF TODAY...
Sky/weather.........Partly sunny (55-65 percent). Scattered showers
and thunderstorms.
CWR.................38 percent.
Chance of thunder...26 percent.
Max temperature.....Around 79.
Min humidity........72 percent.
Dewpoint............70.
Max apparent temp...78.
Wind (20 ft)........Light winds. Gusty and erratic winds expected
near thunderstorms.
Mixing height.......3200 ft AGL.
Transport winds.....South 9 to 10 mph.
Smoke dispersal.....Fair (21500 knot-ft).
LVORI...............3.
ADI.................31.
CEILING (KFT).......1.6.
TIME (EDT) 3PM 4PM 5PM
Sky (%).........60 60 60
Weather cov.....SCT SCT SCT
Weather type....RW RW RW
Tstm cov........SCT SCT SCT
CWR.............40 40 40
Chc of thdr (%).20 30 30
Temp............78 78 77
Dewpoint........71 70 70
RH..............79 76 79
Aparnt tmp (F)..78 78 77
20 FT wind dir..S S S
20 FT wind spd..5 5 5
20 FT wind gust.9 9 9
Mix hgt (kft)...3.2 3.0 2.4
Transp wind dir.S S S
Transp wind spd.9 10 10
LVORI...........3 3 3
ADI.............31 33 29
Vrate kt-ft/1K..26 27 22
Ventrate Cat....PR PR PR
Ceiling (kft)...1.6 1.6 1.7
.TONIGHT...
Sky/weather.........Mostly cloudy (75-85 percent). Scattered
showers early in the evening. Isolated
thunderstorms in the evening. Isolated showers
late in the evening. Areas of fog in the late
evening and overnight.
CWR.................38 percent decreasing to 19 percent early in
the evening.
Chance of thunder...24 percent.
Min temperature.....Around 61.
Max humidity........100 percent.
Dewpoint............67 decreasing to 63 overnight.
Max apparent temp...76.
Wind (20 ft)........Light winds. Gusty and erratic winds expected
near thunderstorms in the evening.
Mixing height.......600 ft AGL.
Transport winds.....South 6 to 8 mph.
Smoke dispersal.....Fair (14100 knot-ft) early in the evening
decreasing to poor (3000 knot-ft) late in the
night.
LVORI...............6.
ADI.................17 decreasing to 5 early in the evening.
CEILING (KFT).......1.7 decreasing to 0.2.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........74 74 74 74 74 74 89 89 89 89 89 89
Weather cov.....SCT SCT SCT ARS ARS ARS ARS ARS ARS ARS ARS ARS
Weather type....RW RW RW FOG FOG FOG FOG FOG FOG FOG FOG FOG
Tstm cov........ISO ISO ISO ISO ISO ISO NO NO NO NO NO NO
CWR.............40 40 20 20 20 20 20 20 20 20 20 20
Chc of thdr (%).20 20 20 20 20 10 10 10 0 0 0 0
Temp............76 75 73 68 67 66 65 64 62 63 63 62
Dewpoint........69 69 68 67 66 65 64 64 62 62 62 62
RH..............79 82 84 97 97 97 97 100 100 97 97 100
Aparnt tmp (F)..76 75 73 68 67 66 65 64 62 63 63 62
20 FT wind dir..S S S SE S SE S S S S S S
20 FT wind spd..3 3 2 2 2 2 2 2 2 2 2 2
20 FT wind gust.7 7 5 5 5 5 5 5 5 5 5 5
Mix hgt (kft)...2.0 1.2 0.7 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6
Transp wind dir.S S SE S S S S S S S S S
Transp wind spd.8 8 7 8 7 7 7 7 6 6 6 7
LVORI...........3 4 5 8 8 8 8 9 9 8 8 8
ADI.............21 12 3 4 3 3 3 3 3 3 3 7
Vrate kt-ft/1K..14 8 4 4 4 4 4 4 3 3 3 4
Ventrate Cat....PR PR PR PR PR PR PR PR PR PR PR PR
Ceiling (kft)...1.7 1.7 1.7 1.2 0.7 0.2 0.2 0.2 0.2 0.2 0.2 0.2
.SUNDAY...
Sky/weather.........Mostly cloudy (65-75 percent) then becoming
mostly sunny (40-50 percent). Areas of fog
early in the morning, then patchy fog late in
the morning. Slight chance of showers and
thunderstorms in the late morning and
afternoon.
CWR.................19 percent decreasing to 0 percent early in the
morning.
Chance of thunder...21 percent.
Max temperature.....Around 79.
Min humidity........69 percent.
Dewpoint............62 increasing to 67 in the late morning and
afternoon.
Max apparent temp...78.
Wind (20 ft)........Light winds becoming south 5 to 6 mph late in
the morning. Gusty and erratic winds expected
near thunderstorms in the late morning and
afternoon.
Mixing height.......2800 ft AGL.
Transport winds.....South 7 to 13 mph.
Smoke dispersal.....Poor (3800 knot-ft) early in the morning
increasing to fair (29100 knot-ft) in the
afternoon.
LVORI...............6.
ADI.................9 increasing to 41.
CEILING (KFT).......0.2 increasing to 1.0 late in the morning, then
increasing to 1.7 late in the morning
increasing to 2.1 late in the morning
decreasing to 1.9 increasing to 2.6 late in the
afternoon increasing to 3.3.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........72 72 72 72 72 72 46 46 46 46 46 46
Weather cov.....ARS ARS ARS SCH SCH SCH SCH SCH SCH SCH SCH SCH
Weather type....FOG FOG FOG RNF RNF RNF RW RW RW RW RW RW
Tstm cov........NO NO NO SCH SCH SCH SCH SCH SCH SCH SCH SCH
CWR.............20 20 0 0 0 0 0 0 0 0 0 0
Chc of thdr (%).0 0 10 10 10 20 20 10 20 20 20 20
Temp............61 63 65 69 71 72 74 75 77 77 78 77
Dewpoint........61 63 63 66 66 66 66 67 67 68 67 67
RH..............100 100 93 90 84 81 76 76 71 74 69 71
Aparnt tmp (F)..61 63 65 69 71 72 74 75 77 77 78 77
20 FT wind dir..S S S S S S S S S S S S
20 FT wind spd..2 2 2 3 5 6 6 6 7 7 7 7
20 FT wind gust.5 5 5 7 9 12 12 13 13 14 14 14
Mix hgt (kft)...0.6 0.9 1.1 1.4 1.6 1.9 2.0 2.2 2.5 2.6 2.7 2.8
Transp wind dir.S S S S S S S S S S S S
Transp wind spd.7 8 8 10 9 9 9 10 13 13 12 12
LVORI...........8 8 5 4 4 3 3 3 3 3 3 3
ADI.............7 10 11 18 19 21 24 30 39 42 39 40
Vrate kt-ft/1K..4 6 8 12 13 15 16 20 27 29 27 28
Ventrate Cat....PR PR PR PR PR PR PR PR PR PR PR PR
Ceiling (kft)...0.2 0.2 0.2 1.0 1.7 2.5 2.3 2.1 1.9 2.6 3.3 4.0
$$
Forecaster...CORNWELL
Requested by...GARETH WEAVER
Type of request...WILDFIRE
.TAG 2517871.0/GYX
.DELDT 07/12/25
.FormatterVersion 2.0.0
.EMAIL gareth.weaver@usda.gov