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
No significant changes with this forecast update.
KEY MESSAGES
1. High pressure remains in control for the rest of the week into the weekend with little to no precipitation on the horizon.
DISCUSSION
KEY MESSAGE 1 DESCRIPTION...
Models remain in good agreement that high pressure will dominate the weather pattern over the Northeast into the weekend. This will provide fair weather for the rest of the week with day time highs near normal and cooler nights thanks to radiational cooling. A cut off low offshore of the Mid Atlantic will meander well southeast of New England through Wednesday. A NE gradient will tighten at times between this system and the high centered NW of of New England bringing periods gusty NE winds near the coast and building near shore waves. By Thursday into the Friday the low will pull east away from New England with a strengthening northerly gradient. This could lead to a couple of breezy days Thursday and Friday when winds could gust 20-30 mph. High pressure then moves close to overhead going into the weekend allowing winds to slacken.
AVIATION /18Z MONDAY THROUGH SATURDAY/
Through Tuesday: VFR conditions likely continue through Tuesday. Tonight valley fog will be possible at LEB and CON. There is a limited signal for marine low stratus/fog near the coast tonight while confidence is not high enough to put in the TAF. NNE winds will gust 15 to 20 kts south of the mountains Tuesday.
Tuesday Night: VFR conditions with NNE winds of 10-15 kts.
Wednesday/Wednesday Night: VFR conditions with NE winds of 10-15 kts.
Thursday-Friday: VFR conditions with NNW winds of 15 kts gusting to 25 kts.
Saturday: VFR with light winds.
MARINE
The gradient between high pressure to the NW and a nor'easter off the coast of the Carolinas will tighten tonight with NNE winds gusting to 25 kts at times early Tuesday morning into Wednesday along with building seas. This nor'easter will lift northeast later this week but is expected to remain south and east of the waters. As the nor'easter pulls east N to NW winds will gust 25 to 30 kts Thursday night into Friday with Gales possible over the outer waters. High pressure moves closer overhead Saturday allowing winds to slacken.
GYX WATCHES/WARNINGS/ADVISORIES
ME...None. NH...None. MARINE...Small Craft Advisory from 6 AM Tuesday to 6 PM EDT Wednesday for ANZ150-152-154.
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