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-- Discussion containing changed information from previous version are highlighted. --
000
FXUS61 KGYX 221213
AFDGYX

Area Forecast Discussion
National Weather Service Gray ME
713 AM EST Tue Jan 22 2019

.SYNOPSIS...
High pressure will build in from the west today and will crest
over the region by this evening before shifting offshore
overnight. Low pressure moving northeast through the Great Lakes
will lift a warm front through the region on Wednesday. Low
pressure will continue northeast through southern Quebec
Wednesday night and will drive a trailing cold front into
western New England by Thursday morning. The front will push
east through the region on Thursday. A secondary cold front will
approach from the northwest Thursday night and will drop south
through the region on Friday. Weak low pressure will approach
from the west Friday night and will cross the region on
Saturday.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
700 AM Update...
quick update to adjust temps/tds across the region. High
pressure building in from the west has cleared skies across the
region early this morning. Northwest winds remain gusty in
locations that didn`t decouple overnight and should remain gusty
through the morning hours before dropping off this afternoon.
Wind chill advisories remain in effect through 900 AM. No major
changes to current forecast planned attm.


Prev Disc...
High pressure will build in from the west today and will crest
over the area by this evening. Gusty northwest winds during the
1st half of the day will gradually subside this afternoon. Wind
chill warnings and advisories continue until 900 AM. Looking
for mostly sunny skies through mid afternoon before high clouds
spill into the region from the west. Return flow will bring
somewhat warmer air back into the region with highs ranging
through the teens north and lower to mid 20s south.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH 6 PM WEDNESDAY/...
Broad area of weak over-running will edge in from the west
overnight as low pressure moves into the southern Great lakes by
Wednesday morning. Looking for increasing clouds overnight with
a slight chance of snow showers in western zones toward
daybreak. Lows overnight will generally range through the single
numbers.

Low pressure will continue northeast through the Great Lakes on
Wednesday lifting a warm front through the region. This will
produce a variety of precipitation during the day with rain in
southern New hampshire and the coastal plain of Maine. A mix of
sleet and snow showers expected farther north in the mountains
and foothills. QPF for the day will be on the light side with
amounts generally a tenth of an inch or less. An inch or two of
snow may accumulate in the far north by late in the day. High
temperatures will push above normal in southern zones with highs
reaching the mid 30s to lower 40s. Farther north readings will
top out in the mid 20s to lower 30s.

&&

.LONG TERM /WEDNESDAY NIGHT THROUGH MONDAY/...
A surface low moves north from the Great Lakes into southern
Canada Wednesday night. A mixed bag a precipitation is likely
especially in the foothills and mountains. The main question is
how quickly will the cold air get scoured out as the warm front
lifts north. Temperatures will fall Wednesday evening with
mountain and foothill locations dropping into the mid and upper
20s. Farther south it looks like temperatures should not drop as
much. Expect temperatures to initially drop early in the evening
but begin to rise by midnight. Most southern location should be
above freezing before 12Z Thursday morning.

The surface low will trail a cold front that will slow as it
approaches the coast. Low pressure will develop on this front
and spread heavier rain over the region Thursday. Ingredients
are there for 1 to 2 inches of rain along the coastal plain.
Both the European model and the GFS are in agreement on this.

The front swings off the coast Thursday evening with colder air
moving in with the coldest holding off until Saturday. Expect
snow showers around through the weekend. Temperatures moderate
to near normal levels Sunday and Monday.

&&

.AVIATION /12Z TUESDAY THROUGH SATURDAY/...
Short Term...VFR today through tonight. MVFR/IFR ceilings
develop on Wednesday mainly during the afternoon and evening.

Long Term...Expect IFR conditions Wednesday Night and Thursday.
Mostly VFR Friday through Monday. There is a chance of MVFR in
possible snow showers through the weekend.

&&

.MARINE...
Short Term...Gales and freezing spray advisories continue
through noon today. Expect winds to gradually subside this
afternoon as high pressure builds in from the west.

Long Term...A southerly Gale is possible Wednesday night and
Thursday. SCA winds possible behind the cold front Thursday
night and Friday.

&&

.GYX WATCHES/WARNINGS/ADVISORIES...
ME...Wind Chill Warning until 9 AM EST this morning for MEZ007>009-
     012>014.
     Wind Chill Advisory until 9 AM EST this morning for MEZ018>028.
NH...Wind Chill Warning until 9 AM EST this morning for NHZ001>007-
     009.
     Wind Chill Advisory until 9 AM EST this morning for NHZ008-
     010>015.
MARINE...Small Craft Advisory until noon EST today for ANZ153.
     Freezing Spray Advisory until noon EST today for ANZ150>154.
     Gale Warning until noon EST today for ANZ150>152-154.

&&

$$