NWS Caribou, Maine Area Forecast Discussion
341
FXUS61 KCAR 270757
AFDCAR
Area Forecast Discussion
National Weather Service Caribou ME
357 AM EDT Fri Mar 27 2026
.WHAT HAS CHANGED...
- Increased winds/wind gusts for this afternoon with stronger
mixing expected.
- Extended the Small Craft Advisory for the Coastal Waters until
8AM EDT on Saturday.
- Added slight chance to chance snow showers on Saturday
associated with a quick moving shortwave trof.
&&
.KEY MESSAGES...
1) Well below normal temperatures through Saturday will make for
a cold start to the weekend, temperatures begin moderating on
Sunday.
2) Snow to a wintry mix is possible Tuesday night into Wednesday
with possible travel impacts.
&&
.DISCUSSION...
KEY MESSAGE 1...Well below normal temperatures through Saturday
will make for a cold start to the weekend, temperatures begin
moderating on Sunday.
KEY MESSAGE 1 DESCRIPTION...
A cold front will be sliding off the Downeast Coast this morning
as winds turn northwest with strengthening cold air advection
expected today. As skies break this morning with increasing
sunshine hi-res models continue to show a nice dry
adiabatic profile up to 4-5kft in most locations. The winds
aloft are not very strong but still 20-30kt and expecting to mix
that to the surface. Now 850-925mb temperatures are falling all
day which means the boundary layer will struggle to get any
diurnal heating even with the stronger sun angle. High
temperatures will likely be this morning and with stronger CAA
this afternoon expect temperatures to remain steady of tumble.
Looking at low to mid 20s north with mid 30s south but falling
into the teens north and 20s south this afternoon. NW winds
gusting 20-30mph will send wind chills down to around 0F-5F
across the north.
Tonight, continued solid model agreement showing a frigid Arctic
airmass arriving. NOAA Hysplit Backward Trajectory modeling
shows this airmass originated on March 19th in the Beaufort Sea
portion of the Arctic Ocean near 82N latitude well north of
Alaska. 850mb temps fall into the -23C to -20C range tonight and
as winds relax expecting steep temperature falls. Modeled
soundings suggest weak stirring of the winds possible especially
in Eastern Aroostook County down to the Bangor Region and
Downeast which may keep temperatures a little warmer. However,
looking at the NBM Min Temp (QMD) probabilities of
NWS CAR Office Area Forecast Discussion
