Area Forecast Discussion
Issued by NWS Portland, ME

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000 FXUS61 KGYX 190719 AFDGYX Area Forecast Discussion National Weather Service Gray ME 319 AM EDT Fri May 19 2017 .SYNOPSIS...
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A cold front will move across the area today bringing cooler temperatures, with even some frosty conditions possible tonight and again Saturday night in the mountains. High pressure shifts east on Sunday with a low pressure system crossing the area Monday, bringing rain to northern New England.
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&& .NEAR TERM /UNTIL 6 PM THIS EVENING/...
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A cold front moves across the area today shifting winds to the northwest bringing a cooler and drier Canadian air mass. A few widely scattered showers may occur this morning mainly in the mountains. The cold air advection doesn`t reach southern and coastal areas until late in the day so temps should be able to reach the lower 80s while in the mountains and foothills temps stay in the 60s to lower 70s.
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&& .SHORT TERM /6 PM THIS EVENING THROUGH 6 PM SATURDAY/...
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The Canadian ridge of high pressure slowly builds southeast across the area with cooler temps and much drier air. By later Friday night winds will become light and combined with clear skies, radiational cooling can be expected. Low temps will drop into the upper 20s to mid 30s in the mountains while elsewhere lows should dip to the upper 30s to lower 40s. Saturday will be sunny with temps at seasonable levels with light northwest winds.
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&& .LONG TERM /SATURDAY NIGHT THROUGH THURSDAY/...
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High pressure will crest over the region Saturday night providing clear skies and chilly temperatures at the good radiators. The high will move offshore on Sunday with nice weather expected, but increasing clouds are likely during the afternoon hours as a short wave trough approaches from the west. As the short wave trough approaches Sunday night along with attendant low pressure, rain will overspread the region which will result in a cloudy, rainy, and cool day on Monday as the warm front remains to our south. This system will move through Monday night with clearing skies expected which will last through the better part of Wednesday. The next low pressure system looks to approach wednesday night with another bout of rain possible Thursday.
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&& .AVIATION /07Z FRIDAY THROUGH TUESDAY/...
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Short Term...A few widely scattered showers mainly in the mountains this morning may briefly cause MVFR conditions otherwise VFR today through Saturday. Long Term...VFR expected Saturday night and Sunday with MVFR or lower conditions likely Sunday night and Monday in low clouds and rain.
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&& .MARINE...
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Short Term...The southwest flow becomes northwest behind a cold front this afternoon. Some gusty winds will approach 25 kts remaining just below SCA thresholds. Northwest winds will continue tonight and Saturday but remain below SCA criteria. Long Term...SCA conditions will be possible late Monday into Tuesday.
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&& .FIRE WEATHER...
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Cooler, drier air moves in from the northwest today behind a cold front. Even drier air will be in place Saturday with widespread relative humidity values below 30 percent, but with lighter winds. Better moisture begins returning early next week with widespread rainfall expected Monday.
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&& .GYX WATCHES/WARNINGS/ADVISORIES...
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ME...Beach Hazards Statement from 8 AM EDT this morning through this evening for MEZ023-024. NH...Beach Hazards Statement from 8 AM EDT this morning through this evening for NHZ014. MARINE...None.
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&& $$

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