Area Forecast Discussion
Issued by NWS Caribou, 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 KCAR 191512
AFDCAR

Area Forecast Discussion
National Weather Service Caribou ME
1112 AM EDT Sat Aug 19 2017

.SYNOPSIS...
A moist air mass will remain across the region today and
tonight. A slow moving frontal system will cross the area
tonight. High pressure will build south of the area Sunday and
Monday.

&&

.NEAR TERM /THROUGH TONIGHT/...
11 AM Update...Added some patchy drizzle to eastern areas where
dense low clouds remain, and some drizzle appears on radar in
addition to some local reports of drizzle. Also lowered
temperatures a bit as the dense overcast is preventing the air
from warming much. Looks like skies may brighted a bit in
western areas into the afternoon.

Previous discussion... The region will be in a moist air mass
today. The 00z KCAR sounding was nearly saturated from 850-500H
with a precipitable H20 of 1.43", and little change in the air
mass is expected today. A weak wave of low pressure along the
coast will continue to produce some showers across southeast
portions of the CWA through early this morning, but the heavy
rain has remained offshore. An occluded front will approach from
the west this afternoon and may provide the focus for a few
showers across the western zones, especially late in the day.
The clouds may thin out a bit during the afternoon across the
western zones, which could lead to just enough instability for
an isolated thunderstorm. The front comes through tonight with a
partly to mostly cloudy sky and a few scattered showers.

&&

.SHORT TERM /SUNDAY THROUGH MONDAY/...
Any lingering showers Sunday morning will quickly diminish by
midday as the departing short waves exits east into the
maritimes. Expect skies to become partly to mostly sunny by
afternoon as an area of high pressure builds east toward the
region. Highs on Sunday will range from the mid 70s north to
around 80 down east. Expect mainly clear to partly cloudy skies
Sunday night with lows ranging from the mid to upper 50s across
the region. Monday is shaping up as a very warm warm day as high
pressure slided to our south. H925 temperatures are forecast to
climb to around 22c across portions of northern and central
Maine on a west wind. This will result in afternoon high
temperatures reaching well above normal levels for this time of
year. Highs on Monday are expected to be in the low to mid 80s
across much of the region under mainly sunny skies.

&&

.LONG TERM /MONDAY NIGHT THROUGH FRIDAY/...
A cold front will slowly approach the region from the northwest
Monday night through Tuesday. Expect the chance for showers
across northern areas later Monday night and Tuesday in advance
of the approaching front. There will also be a slight chance of
thunderstorms. A wave of low pressure is expected to move
northeast along the approaching front Tuesday night into
Wednesday with showers likely along with the chance for
thunderstorms. The front will slowly cross the region Wednesday
night with the chance for showers. High pressure will build
toward the region Thursday through Friday with mainly dry
weather expected, although with upper level low pressure
remaining to our north couldn`t rule out an isolated shower.
High temperatures are expected to be above normal Tuesday and
Wednesday and then fall to near, or even a bit below normal by
Thursday and Friday.

&&

.AVIATION /15Z SATURDAY THROUGH WEDNESDAY/...
NEAR TERM: LIFR to IFR ceilings this morning in low stratus and
patchy fog. Conditons will improve a bit this afternoon to low
end MVFR, but will likely lower back to IFR again tonight.

SHORT TERM: Mainly VFR conditions Sunday through Monday. A slow
moving cold front approaching from the west Tuesday through
Wednesday will result in the chance for showers and
thunderstorms, especially Tuesday night and Wednesday with
possible MVFR conditions.

&&

.MARINE...
NEAR TERM: The small craft advisory was transitioned to a small
craft advisory for hazardous seas for the coastal waters only as
the wind has diminished early this morning.

SHORT TERM: Winds/seas will remain below small craft advisory
levels Sunday through Monday. Seas may build to around 6 feet by
mid week.

&&

.CAR WATCHES/WARNINGS/ADVISORIES...
ME...None.
MARINE...Small Craft Advisory for hazardous seas until 8 PM EDT this
     evening for ANZ050-051.

&&

$$

Near Term...CB/MCB
Short Term...Duda
Long Term...Duda
Aviation...CB/Duda
Marine...CB/Duda



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