NWS Caribou, Maine Area Forecast Discussion
030
FXUS61 KCAR 070715
AFDCAR
Area Forecast Discussion
National Weather Service Caribou ME
315 AM EDT Tue Apr 7 2026
.WHAT HAS CHANGED...
- No major changes to the forecast for this update.
&&
.KEY MESSAGES...
1) Cold temperatures and light snow late today and tonight.
2) Low RHs expected Wednesday and Thursday which may lead to
increased fire weather concerns in areas where no snowpack
exists.
&&
.DISCUSSION...
KEY MESSAGE 1...Cold temperatures and light snow late today and
tonight.
KEY MESSAGE 1 DESCRIPTION...
A mid level trof will move across the waters tonight. High res
models indicate an area of moisture in the north end of the low
moving into the region by this afternoon. The majority of the
snow will be south of the Central Highlands with accumulations
being light. The snow is expected to last into tonight with
light snow showers across the south. Once the system exits to
the east, a strong surface high pressure will move in. This will
clear out skies and bring in a cold airmass. With the light
winds, cold airmass, and clear skies, ample diurnal cooling will
occur. This will drop temps well below seasonal norms, with
single digits in the north and teens in the south.
KEY MESSAGE 2...Low RHs expected Wednesday and Thursday which
may lead to increased fire weather concerns in areas where no
snowpack exists.
KEY MESSAGE 2 DESCRIPTION...
Dry snowfree grounds Downeast to Bangor Region, low RHs, light
winds, and mostly sunny skies may lead to some increased fire
weather concerns Wednesday.
High pressure slides to the south of Maine Wednesday resulting
in W-SW flow across the area under a strong subsidence
inversion with ample dry air aloft. Deep mixing up to 800mb
combined with mostly sunny skies, especially further south,
should contribute to very low RHs, likely below 23-28%.
Elsewhere generally 35-40% across the North from Moosehead
Region to Baxter Region northward to the St. John Valley. Winds
will not be that strong generally 5-10mph with occasionally
gusting 15 to 20 mph especially across the terrain.
Afternoon relative humidity values Thursday will generally
range from 30 to 40 percent across inland areas away from the
Downeast coast. Higher humidity values will occur along the
Downeast coast with onshore winds. Southerly winds will gust to
20 to 25 mph across the region. These conditions could help
maintain fire weather concerns Thursday.
&&
.AVIATION /07Z TUESDAY THROUGH SATURDAY/...
Today-Tonight...VFR north, VFR/MVFR south due to snow this
afternoon. Light and variable winds.
Wednesday...VFR. W winds 5-10 kts.
Wednesday night through Thursday...VFR. South/southwest winds 5
to 10 knots Wednesday night. South winds 10 to 15 knots with
gusts up to around 20 knots Thursday.
Thursday night...VFR/MVFR, local IFR. South winds 10 to 15 knots.
Friday...VFR/MVFR, local IFR early. Otherwise, VFR/MVFR north
with a chance of showers. VFR Downeast. South/southwest winds 10
to 15 knots with gusts up to 20 knots, becoming variable 5 to 10
knots.
Friday night...MVFR/IFR. A chance of rain. Variable winds 5 to
10 knots, becoming north/northwest.
Saturday...MVFR/IFR with a chance of rain early, then VFR/MVFR.
North/northwest winds 10 to 15 knots with gusts up to around 20
knots.
&&
.MARINE...
Winds and seas will remain below SCA levels today and early
tonight. Winds will increase around midnight to SCA levels, thus
a small craft advisory has been issued. Winds will decrease by
Wednesday morning.
Winds/seas below small craft advisory levels Wednesday night
through Thursday night.
&&
.CAR WATCHES/WARNINGS/ADVISORIES...
ME...None.
MARINE...Small Craft Advisory from 11 PM this evening to 9 AM EDT
Wednesday for ANZ050-051.
&&
$$
DISCUSSION...ARL/CN
AVIATION...ARL/CN
NWS CAR Office Area Forecast Discussion
