Area Forecast Discussion
Issued by NWS Portland, ME

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000 FXUS61 KGYX 172345 AFDGYX Area Forecast Discussion National Weather Service Gray ME 745 PM EDT Thu May 17 2018 .SYNOPSIS... A cold front moves offshore tonight with colder weather for tonight and Friday. Temperatures on Friday and Saturday will be quite chilly especially over the coastal plain where an increasing onshore wind will bring a cooling effect from the ocean. Low pressure lifts north along the East Coast Saturday into Saturday night, bringing some rain to New England before the next cold front arrives on Sunday. High pressure behind this cold front will bring a few more nice days early next week. && .NEAR TERM /UNTIL 6 AM FRIDAY MORNING/...
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740 PM Update...Have updated the forecast based on latest trends in temperatures, sky cover, and winds. A cold front is currently progressing southward across the forecast area and will continue to do so early this evening. Winds will shift north, with most locations losing the cu. Clouds may linger a little bit longer along the southern CWA border. Previously... Cooler air moving in tonight behind a cold front. Could be an isolated shower early this evening near the coast, otherwise looking dry. Temperatures tonight could get down to freezing from Coos County over to NW Maine along the Quebec border, with temps remaining above freezing further south due to cooler air just starting to move in from the north and a persistent pressure gradient as well as some lingering clouds. Somewhat cool but mostly sunny day in store Friday with highs generally 60 to 65, except a bit warmer S/SW New Hampshire.
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&& .SHORT TERM /6 AM FRIDAY MORNING THROUGH 6 PM FRIDAY/... Thickening/increasing clouds Friday night with rain developing Saturday areawide. Most significant rain comes afternoon and evening Saturday, then rain gradually tapers off into Sunday. Looking at around a half to three quarters of an inch of rain. Cold front moves through on Sunday. && .LONG TERM /FRIDAY NIGHT THROUGH THURSDAY/... High pressure on Monday with pleasant weather. Chance of rain returns Tuesday into Wednesday, but there are substantial model disagreements on timing of a potential weather system Tue/Wed. Regardless, doesn`t look like anything that major. Likely drying out and cooling off some for Thursday. && .AVIATION /00Z FRIDAY THROUGH TUESDAY/... Short Term...VFR into Friday. Long Term...Widespread MVFR and IFR expected with the weather system Saturday to early Sunday. Then likely improving to VFR late Sunday into Monday. && .MARINE...
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Short Term... A cold front will cross the waters this evening. Later tonight the pressure gradient will tighten allowing for northerly 25 kt gusts on the waters after midnight into Friday morning. Winds and seas subside thereafter. Long Term... Conditions below small craft Sunday night into Tuesday.
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&& .FIRE WEATHER...
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Very dry RH values are expected friday. However, winds will remain relatively light, precluding the need for a red flag warning.
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&& .GYX WATCHES/WARNINGS/ADVISORIES...
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ME...None. NH...None. MARINE...Small Craft Advisory from 2 AM to 10 AM EDT Friday for ANZ152- 154.
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&& $$

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