Area Forecast Discussion
Issued by NWS Portland, ME

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000
FXUS61 KGYX 011943
AFDGYX

Area Forecast Discussion
National Weather Service Gray ME
343 PM EDT Mon Jun 1 2020

.SYNOPSIS...
Mixed clouds and sun with isolated showers will give way to
partial clearing skies tonight Weak disturbances will bring
chances of showers late Tuesday and again late Wednesday.
Temperatures will moderate through the week with highs
approaching the 80s by the end of the week.

&&

.NEAR TERM /UNTIL 6 AM TUESDAY MORNING/...
Weak surface trough passing through western New England will
continue to bring mixed clouds and sun with isolated showers
into this evening. Skies will become mostly clear overnight with
light winds and cold airmass in place leading to another cold
night. A frost advisory is in effect tonight for northern zones
where lows will bottom out in the low 30s.

&&

.SHORT TERM /6 AM TUESDAY MORNING THROUGH TUESDAY NIGHT/...
Tuesday will be a few degrees warmer today with highs in the
60s to near 70 degrees. Clouds will be on the increase as
another disturbance aloft approaches from the northwest. This
disturbance will bring increasing chances of light showers
Tuesday afternoon into the night with not much expected in QPF
amounts. Temperatures will not be as cold as recent nights with
lows in the 40s to 50s.

&&

.LONG TERM /WEDNESDAY THROUGH MONDAY/...
12Z guidance in relatively good agreement with the next short
wave rounding the base of the eastern Canada upper level trough
on Wednesday. Ahead of this trough, the atmosphere will
gradually moisten as the southerly gradient increases in the
lowest levels. There will be a brief period of warm air
advection associated with this system. Scattered showers will
develop during the day which will linger into Wednesday evening.
Any rain will be relatively light and scattered in nature, so
there will be little impact during our continued dry spell.

Temperatures will be on the rise on Thursday as sunshine and H8
temperatures around +10 to +12 C allows for readings in the 70s
across much of Maine. Over southern New Hampshire, temperatures
should top out over 80 degrees during the afternoon.

A positively tilted, upper level trough will approach the
region on Friday. This may trigger a few rain showers, but once
again, any precipitation should be relatively light.

More widespread shower activity is possible Friday night as a
cold front sweeps through New England. The atmosphere may
destabilize sufficiently to produce a thunderstorm as well,
most likely away from the coast.

Below normal temperatures will occur once again over the
upcoming weekend as cold, Canadian air enters the region.

&&

.AVIATION /19Z MONDAY THROUGH SATURDAY/...
Short Term...VFR through tomorrow afternoon. More widespread
showers may bring brief periods of MVFR in SHRA Tues evening
into Tues night.

Long Term...A weak disturbance will cross northern New England
Wednesday and Wednesday night. This will trigger a few showers
across the region although the precipitation will be light.
Conditions may briefly lower to MVFR in this scattered
precipitation. Otherwise, expected VFR conditions for the rest
of the work week. By this weekend, more widespread showers will
lower ceilings and visibilities to MVFR and IFR conditions.

&&

.MARINE...
Short Term...Winds and seas will remain below SCA thresholds
through Tuesday night.

Long Term...Winds and seas will remain below SCA thresholds for
much of the work week. However, a southwesterly gradient will
increase on Friday into Friday night allowing winds to likely
gust to 25 kt.

&&

.GYX WATCHES/WARNINGS/ADVISORIES...
ME...Frost Advisory from midnight tonight to 7 AM EDT Tuesday for
     MEZ007>009.
NH...Frost Advisory from midnight tonight to 7 AM EDT Tuesday for
     NHZ001-002.
MARINE...None.

&&

$$

NEAR TERM...Schroeter
SHORT TERM...Schroeter
LONG TERM...Cannon


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