Scientific Forecaster Discussion
Area forecast discussion
National Weather Service Gray ME
317 am EDT Thursday Jul 2 2015
low pressure moves into the Canadian Maritimes today. High
pressure builds in today and remains in place through late
Saturday night. A trough of low pressure moves through Sunday.
High pressure builds in through midweek.
Near term /today/...
as low pressure departs... high pressure will build in from the
west today. It should be a mostly sunny day... although some
afternoon cumulus are possible. Temperatures warm into the 70s to
near 80 degrees in southern New Hampshire. Light southwest winds
will allow a seabreeze to approach the coast and provide the most
impact to the midcoast region of Maine.
Although rip currents have been noted the past few days at some
area beaches... forecast conditions today do not appear to favor
an enhanced chance of rip currents. Winds over the water today
will be very light out of the southwest (instead of onshore) with
wave heights decreasing.
Short term /tonight and Friday/...
clear and calm conditions expected over the western part of the
forecast area tonight... closer to the center of high pressure.
This will allow good radiational cooling conditions. Dry air in
place will allow temperatures to fall into the 40s. Coastal Maine
and the southeast half of New Hampshire will bottom out in the low
to middle 50s.
Should be a degree or two warmer on Friday with high pressure
still in control. A seabreeze is possible along the coast later in
Long term /Saturday through Wednesday/...
the next two to seven days look mostly precipitation free with
temperatures right around or slightly above normal. On Saturday
high pressure remains centered offshore but influences the
weather over northern New England by supplying sunny skies and a
sea breeze in the afternoon. Temperatures will be slightly cooler
along the coast due to this feature.
By that night a trough of low pressure will have entered the
northern counties as low pressure travels through eastern Canada.
The trough sharpens on Sunday and some rain showers may develop
especially in the heat of the afternoon. Still the showers will
have minimal impact on as far as rainfall amounts go and should
exit the area by the evening.
High pressure builds in from the west Monday and remains overhead
Tuesday bringing sunny skies and light winds. We will see
temperatures in the middle to upper 80s areawide. Weak troughing
steers another boundary our way in the Thursday time frame... but
it remains to be seen whether this feature will wash out before it
Aviation /07z Thursday through Monday/...
short term...high pressure brings a clear sky and light winds for
the next few days.
Long term...possible MVFR ceilings Saturday night until Sunday
night in rain showers as a front moves across the region.
short term...high pressure builds east into New England and the
Gulf of Maine bringing light winds and decreasing wave heights.
Long term...no problems noted on the waters. High pressure will
control the waters for most of the next 7 days. Over the weekend a
front will cross the waters but winds and waves will stay below
Small Craft Advisory criteria.