Area Forecast Discussion
Issued by NWS Portland, ME
FXUS61 KGYX 292356 AAB
Area Forecast Discussion...UPDATED
National Weather Service Gray ME
756 PM EDT FRI JUL 29 2016
Cooler and drier Canadian High pressure builds across the area
tonight through Saturday. Another system approaches from the west
Sunday and early next week bringing rain to the region. Mainly
dry weather with a gradual warming trend is expected beginning
Wednesday through late next week.
.NEAR TERM /UNTIL 6 AM SATURDAY MORNING/...
Update...Showers have moved S of the area and clouds continue to
scatter out. Drier air is slowly moving in from the N...which
should allow Nrn zones to fall into the 50s tonight for lows. The
coast will hang onto high dewpoint air the longest...so readings
will remain in the 60s.
Previous discussion...The coastal low south of New England moves
east staying well south of the area tonight allowing Canadian high
pressure to build southeast into the forecast area. This high
pressure will bring cooler and drier air into the region tonight.
Used a blend of models for overnight lows which will be close to
.SHORT TERM /6 AM SATURDAY MORNING THROUGH SATURDAY NIGHT/...
Canadian high pressure settles over the region producing mostly
sunny skies Saturday with drier and seasonably warm conditions.
Saturday night clouds will be on the increase in advance of the
next approaching system from the midwest. Seasonable low temps are
expected for Saturday night as per models suggests.
.LONG TERM /SUNDAY THROUGH FRIDAY/...
Sunday through Tuesday will be unsettled with some much needed rain
expected. Models still differ a bit on the details. ECMWF much
more aggressive with rainfall amounts and quicker moving the rain
in on Sunday. ECMWF showing a washout for Sunday while GFS and NAM
slower with lighter QPF. Used a blend of model guidance and will
not introduce likely POP until Sunday night. The short wave will
move east of the forecast area Tuesday afternoon. For the middle
and late part of the week it looks like a warm up and increasing
humidity. Friday temps will be back into the lower 90s with dew
points in the mid 60s.
.AVIATION /00Z SATURDAY THROUGH WEDNESDAY/...
Short Term /through Saturday/...VFR. 05z-11z lcl ifr in patchy valley
stratus and fog.
Long Term...Conditions will deteriorate to MVFR/IFR Sunday and
expect MVFR/IFR to continue into Monday. Improvement to VFR
Short Term /through Saturday/...Conditions to remain below SCA
thresholds through the period.
Long Term...Winds and seas expected to remain below small craft
criteria through Wednesday. A southwesterly flow increases
Thursday and winds and seas may reach small craft criteria on
late Thursday or Friday.