textproduct: Gray - Portland

WHAT HAS CHANGED

Calm and clear conditions led to efficient radiational cooling through the interior overnight, so mainly just incorporated that into the near term. Otherwise, the forecast remains on track with any lingering showers coming to an end early this morning and a clear day on tap.

KEY MESSAGES

1. Mainly quiet weather is likely late week through the upcoming weekend with near to above average temperatures through Saturday.

2. Colder temperatures will return Sunday through early next week with perhaps a few periods of precipitation.

DISCUSSION

KEY MESSAGE 1 DESCRIPTION... A cold front crosses the region early this morning with any snow showers ending well before sunrise. A few slippery spots will be possible for the morning commute, especially across western NH. Winds will be gusty today behind a secondary cold front, with westerly winds gusting around 25 MPH.

Otherwise, fair weather and a warm-up is expected through Saturday with temperatures peaking well into the 40s on Saturday.

KEY MESSAGE 2 DESCRIPTION... Colder temperatures will quickly return on Sunday behind a cold front as a trof of low pressure moves overhead. High temperatures will be on avg 10-20 degrees colder than Saturday and a period of light snow is possible during the day. Sunday night will be cold with lows near or below zero in most locations and gusty NW winds will send wind chills well below zero. Canadian high pressure will build across New England on Monday with high temperatures into the teens and 20s from north to south. Monday night will once again be cold with lows into the single digits either side of zero.

Temperatures will begin to moderate some on Tuesday as flow becomes southerly. A storm system that is currently progged to cross south of New England may allow for some snow late in the day and at night but forecast confidence at this time range is low. Near avg temperatures and mainly dry conditions are then likely towards the middle and later half of next week.

AVIATION /12Z THURSDAY THROUGH MONDAY/

Through 12Z Friday...Lingering MVFR conditions early this morning will improve to VFR after 12Z. VFR conditions expected through the period with westerly SFC gusts 20 to 25 KT today. Gusts taper off after 19Z, with VFR conditions prevailing through tonight.

Outlook:

Friday-Saturday night: VFR conditions expected.

Sunday: VFR conditions likely. Low chance for some -SN but forecast confidence is low.

Monday: VFR conditions expected.

MARINE

Today through Saturday...SCAs remain in effect for the outer waters thru today with some gusts around 25 kt in the bays possible today. Winds and seas look to remain below SCA criteria on Friday. SCA conditions start later Friday night and continue through Saturday.

NW wind gusts up to 30 kts are possible behind a cold front on Sunday afternoon and night with seas outside of the bays building to 4-7 ft. Freezing spray is also possible. Winds and seas will then relax on Monday before a period of strong S-SW winds are possible late Tuesday into the middle of next week.

GYX WATCHES/WARNINGS/ADVISORIES

ME...None. NH...None. MARINE...Small Craft Advisory until 7 PM EST this evening for ANZ150- 152-154.