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
000
FXUS61 KGYX 230724
AFDGYX

Area Forecast Discussion
National Weather Service Gray ME
324 AM EDT Tue Jul 23 2019

.SYNOPSIS...
Low pressure will track east along a stalled frontal boundary
today and will shift into the maritimes by this evening. Another
area of low pressure will track east along the boundary south of
New England Tuesday night. High pressure will build in from the
west on Wednesday and Wednesday night. A weak frontal boundary
will wash out as it sags into northern zones on Thursday. High
pressure will build south of New England Thursday night through
Saturday and will hold off the coast on Sunday.
&&

.NEAR TERM /THROUGH TODAY/...
Rain associated with second wave ow pressure to track along
stalled front to our south is moving into srn NH attm, and this
rain will move trough the srn half of NH and the coastal plain
of ME through the morning. The further N and west you go, the
more showery and spotty the precip will be this morning. Also,
despite high PWATs, the best instability and forcing will
remain over srn New England, and will keep the heavier rainfall
out of the CWA. Overall, should see an addition 1/4 to 1/2 inch
in srn areas this morning, which should not pose any problems,
with lower amts to the N and W. the rain or showers will shift
east this afternoon, and should end by late afternoon
everywhere. Some clearing is possible in the the NH mtns and
the Ct vly late, but the rest of the CWA will likely stay
cloudy to mostly thru the day. Highs will be cool generally in
the upper 60s near the coast to the low to mid 70s in the N and
W zones.


&&

.SHORT TERM /TONIGHT THROUGH 6 PM WEDNESDAY/...
Models continue to show a third low tracking along that front
tonight, but it looks to stay far enough to our S and E to keep
the CWA dry. Most places should clear out during the evening,
but that wave may keep coastal areas mostly cloudy thru the
night. Lows will range from the low-mid 50s in the N to around
60 along the coast and in srn NH.

That sfc low and the front should finally accelerate to our E on
Wed, and any morning clouds in the S should clear out quickly.
Flow will be weak, but should see enuf NW flow early for some
downsloping and temps range from the mid 70s in theFcst  N and
at the beaches to the low 80s on the coastal plain and in srn
NH.

&&

.LONG TERM /WEDNESDAY NIGHT THROUGH TUESDAY/...
Fairly quiet week on tap as upper ridge gradually builds in
from the west for the end of the week and the weekend...

High pressure will build over the region Wednesday night as
a weak frontal boundary approaches from the northwest.
Looking for mostly clear skies overnight. Lows will
generally range through the 50s.

Frontal boundary will wash out as it drops into northwest
zones on Thursday. Little if any forcing will be left by
afternoon but some marginal instability may be enough to
pop off a few showers  in northwest zones during the
afternoon. Otherwise...the remainder of the forecast area will
see variable clouds. Highs will range from the mid 70s north to
the mid 80s south.Fcst

High pressure will build south of the region Thursday night
setting up a warm southwesterly flow for Friday and into
the weekend. Looking for mostly clear skies Thursday night
and Friday. Lows will range from the mid 50s to lower 60s.
Highs will top out in the lower to mid 80s.

A little more in the way of heat and humidity will return
Friday night and Saturday as high pressure builds off the
coast south of the region. Looking for partly cloudy skies
overnight with lows in the upper 50s to mid 60s. Fair weather
will continue on Saturday with mostly sunny skies and highs
ranging through the 80s.

Expect similar conditions Saturday night and Sunday as high
pressure holds southeast of the region. Fair weather will
continue on Monday with temperatures similar to the weekend.

&&

.AVIATION /07Z TUESDAY THROUGH SATURDAY/...
Short Term...Expect IFR-LIFR to persist thru the morning at
KMHT/KCON/KPWM/KRKD, with MVFR-VFR at KAUG/KLEB/KHIE. All
terminals will transition to VFR this afternoon , which will
persist through Wed,

Long Term...VFR Wednesday night through Saturday.

&&

.MARINE...
Short Term...Some NE gusts approach 25 kts S of Portland early
this morning, but wind diminish later this morning, and stay
blow SCA lvls through Wed.

Long Term...
No problems noted.

&&

.EQUIPMENT...
The Sugarloaf NWR transmitter is off the air until further
notice. This will be an extended outage as the tower, which was
severely damaged in a winter storm, is rebuilt.

&&

.GYX WATCHES/WARNINGS/ADVISORIES...
ME...None.
NH...None.
MARINE...None.

&&

NEAR/SHORT TERM...Cempa

$$


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