Area Forecast Discussion
Issued by NWS Portland, ME

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
425
FXUS61 KGYX 231901
AFDGYX

Area Forecast Discussion
National Weather Service Gray ME
301 PM EDT Sat Sep 23 2017

.SYNOPSIS...
Very warm high pressure will continue to build across the region
and remain into Tuesday night and perhaps even Wednesday. This
will mean much warmer than normal temperatures during the
daytime hours, with a few inland record highs possible. A cold
front looks to sweep across the region late Wednesday or
Thursday with showers and possible thunder. It will also bring
much cooler air into the region for late week. At this time it
looks like Hurricane Maria will not be a threat to our region
thanks to the cold front sweeping her out to sea well to our
south.

&&

.NEAR TERM /THROUGH TONIGHT/...
High pressure will continue to build into New England from the
west this evening. This will mean our fair and warm weather will
continue into the evening hours. Radiational cooling will likely
take place tonight with temperatures heading back down into the
50s and 60s. However, this is still above normal. Valley fog is
expected across the interior tonight, along with a brief period
of stratus possible on the mid coast. Otherwise, the weather
will remain dry.

&&

.SHORT TERM /SUNDAY THROUGH SUNDAY NIGHT/...
High pressure continues to build across the region Sunday with
fair weather and very warm to hot temperatures. The immediate
coast will cool off with a seabreeze during the afternoon hours.
However, the rest of the region will likely see highs in the mid
to upper 80s - with a few 90 degree readings certainly possible.
The record high at KCON on Sunday is 89...and that is the number
we are currently forecasting. Dewpoints will be in the 60s, but
not high enough to allow for heat indices much higher than the
actual temperatures. Sunday night will feature mostly clear
skies and temperatures falling back into the 50s and 60s with
valley fog likely once again.

&&

.LONG TERM /MONDAY THROUGH SATURDAY/...
High pressure will remain in control over the northeast for Monday
and Tuesday with high temperatures well above normal. Expect
mostly sunny skies both days with inland highs on Monday in the
mid 80s to near 90. A sea breeze will cap temps along the coast in
the upper 70s to lower 80s. Highs on Tuesday will reach the lower
to mid 80s inland with mid to upper 70s along the coast. Lows
overnight will range from the mid 50s to mid 60s.

Cold front will approach from the northwest on Wednesday. Looking
for a mix of sun and clouds and possibly a late day shower or
thunderstorm in northwest zones...however K indexes suggesting
moisture may be a limiting factor. High on Wednesday will range
from the mid 70s to lower 80s.

Cold front will gradually push into the region Wednesday night
bringing clouds and showers and possibly a stray thunderstorm...
mainly after midnight. Lows will range from the mid 50s to lower
60s.

Cold front will slowly push offshore on Thursday. Looking for
clouds during the morning and into the afternoon in southern
zones with clearing from north to south during the late
afternoon and evening. Highs Thursday will range from the mid
60s north to the mid 70s south.

Weak surface ridging will nose in from the west Thursday night
bringing mostly clear skies and much cooler temps. Lows will
range from the mid 40s north to the mid 50s south. Fair weather
will continue on Friday with highs ranging through the 60s.

&&

.AVIATION /19Z SATURDAY THROUGH THURSDAY/...
Short Term /through Sunday Night/...VFR conditions except some Lcl
LIFR btw 09z-12z Sunday and Monday along the CT River Valley in
stratus and fog. A brief period of low stratus will be possible
at RKD late tonight as well.

Long Term...
VFR Monday through Wednesday. Areas of MFR ceilings Wednesday
night and Thursday.

&&

.MARINE...
Short Term /through Sunday Night/...SCA for seas will expire at
00z this evening as seas continue to subside. Otherwise, sub-SCA
conditions are expected through Sunday night with some maritime
fog possible.

Long Term...
No problems noted.

&&

.GYX WATCHES/WARNINGS/ADVISORIES...
ME...None.
NH...None.
MARINE...Small Craft Advisory for hazardous seas until 8 PM EDT this
     evening for ANZ150-152-154.

&&

$$

NEAR TERM...Ekster
SHORT TERM...Ekster
LONG TERM...Sinsabaugh



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.