textproduct: Gray - Portland
This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.
WHAT HAS CHANGED
A Small Craft Advisory has been issued for Monday night into Tuesday morning.
KEY MESSAGES
1. A dry cold front brings a shot of cooler air Tuesday. Otherwise dry conditions continue through the week under high pressure
DISCUSSION
KEY MESSAGE 1 DESCRIPTION...
Return flow around high pressure south of New England will allow a warming trend to continue into Monday when highs south of the mountains push into the upper 60s to low 70s. A weak cold front crosses during the afternoon bringing some clouds and some showers near the Canadian Border. A new Canadian high pressure system builds in behind the front with highs on Tuesday in the 40s and 50s followed by overnight lows in the 20s.
The high starts to shift offshore Wednesday and Thursday allowing temperatures to moderate again. Another weak front crosses late Thursday into Friday bringing low chances for showers. High pressure returns behind the front providing mostly dry weather to close out the week.
AVIATION /18Z SUNDAY THROUGH FRIDAY/
Through Monday: Mainly VFR. Fog did form at LEB early this morning and have gone with a persistence forecast there tonight. A front crosses Monday afternoon and evening that could bring TEMPO MVFR at HIE.
Outlook...
Monday night-Thursday...Mainly VFR. Steady NW winds MOnday night into Tuesday will likely will become light and variable again late Tuesday through Thursday.
Friday: A front crosses Thursday night and Friday that could bring MVFR to the mountains. Otherwise, conditions likely stay VFR.
MARINE
Winds and seas remain below SCA thresholds through Monday. A cold front crosses late Monday with northerly winds in its wake bringing SCA conditions Monday night into Tuesday. High pressure rebuilds over the Northeast for the middle of the week. The next front approaches late Thursday bring potential for SCAs in SW flow.
GYX WATCHES/WARNINGS/ADVISORIES
ME...None. NH...None. MARINE...Small Craft Advisory from midnight Monday night to 10 AM EDT Tuesday for ANZ150-152-154.
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