Area Forecast Discussion
Issued by NWS Portland, ME

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000 FXUS61 KGYX 292101 AFDGYX Area Forecast Discussion National Weather Service Gray ME 501 PM EDT FRI JUL 29 2016 .SYNOPSIS... Cooler and drier Canadian High pressure builds across the area tonight through Saturday. Another system approaches from the west Sunday and early next week bringing rain to the region. Mainly dry weather with a gradual warming trend is expected beginning Wednesday through late next week. && .NEAR TERM /TONIGHT/...
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Update...Minor changes to the PoP grids to reflect shower activity winding down and moving S of the forecast area at this hour. Previous discussion...The coastal low south of New England moves east staying well south of the area tonight allowing Canadian high pressure to build southeast into the forecast area. This high pressure will bring cooler and drier air into the region tonight. Used a blend of models for overnight lows which will be close to seasonal levels.
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&& .SHORT TERM /6 AM SATURDAY MORNING THROUGH SATURDAY NIGHT/... Canadian high pressure settles over the region producing mostly sunny skies Saturday with drier and seasonably warm conditions. Saturday night clouds will be on the increase in advance of the next approaching system from the midwest. Seasonable low temps are expected for Saturday night as per models suggests. && .LONG TERM /SUNDAY THROUGH FRIDAY/...
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Sunday through Tuesday will be unsettled with some much needed rain expected. Models still differ a bit on the details. ECMWF much more aggressive with rainfall amounts and quicker moving the rain in on Sunday. ECMWF showing a washout for Sunday while GFS and NAM slower with lighter QPF. Used a blend of model guidance and will not introduce likely POP until Sunday night. The short wave will move east of the forecast area Tuesday afternoon. For the middle and late part of the week it looks like a warm up and increasing humidity. Friday temps will be back into the lower 90s with dew points in the mid 60s.
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&& .AVIATION /21Z FRIDAY THROUGH WEDNESDAY/... Short Term /through Saturday/...VFR. 05z-11z lcl ifr in patchy valley stratus and fog. Long Term...Conditions will deteriorate to MVFR/IFR Sunday and expect MVFR/IFR to continue into Monday. Improvement to VFR Tuesday. && .MARINE... Short Term /through Saturday/...Conditions to remain below SCA thresholds through the period. Long Term...Winds and seas expected to remain below small craft criteria through Wednesday. A southwesterly flow increases Thursday and winds and seas may reach small craft criteria on late Thursday or Friday. && .GYX WATCHES/WARNINGS/ADVISORIES... ME...None. NH...None. MARINE...None. && $$ NEAR TERM...Legro

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