Malone, Washington Weather Forecast Discussion

898
FXUS66 KSEW 261119
AFDSEW
Area Forecast Discussion
National Weather Service Seattle WA
419 AM PDT Fri Sep 26 2025
.SYNOPSIS...Zonal flow will continue today as several frontal system
approach Western Washington. A frontal system will clip the northern
portion of Washington, bringing the chance of light showers along
the north coast and Whatcom County Friday and Saturday. Widespread
rain on Sunday and Monday as a frontal system moves over the region.
Additional systems will impact the region next week, bringing
additional chances for precipitation.
&&
.SHORT TERM /TODAY THROUGH SUNDAY/...Latest satellite imagery
shows some low stratus and high clouds along some portions of
Western Washington early this morning. Zonal flow will continue
today ahead of multiple frontal systems making their way to
Western Washington in the coming days. An upper level low with an
associated front situated over the Gulf of Alaska will move inland
into Canada and clip northern portions of Western Washington.
This will bring the chance of light rain to the north coast and
Whatcom County today through Saturday. Latest guidance suggests
that most locations will see less than 0.10 inches of rain, while
the north coast may see up to 0.30 inches through Saturday. A
frontal system will move through the region Sunday bringing
widespread rain to the region by the evening hours. Guidance hints
at a very small chance of thunder along the coast Sunday evening
(10%-20%).
Temperatures will be slightly warmer today and Saturday. Today high
temperatures will be in the upper 60s to low 70s in the interior and
low 60s in the coast. Saturday will be slightly warmer than Friday;
temperatures will in the interior will be in low to mid 70s and low
to mid 60s at the coast.
.LONG TERM /MONDAY THROUGH THURSDAY/...The aforementioned frontal
system will continue pushing through the region on Monday. There is
good agreement between ensemble guidance that unsettled weather will
continue into late next with additional systems set to impact the
region. Latest guidance is suggesting a small chance of
thunderstorms on Monday and Tuesday evening along the Cascades (10%-
20%). As for the lowlands (including the coast), probabilities are
around 10%. In addition to low probabilities, confidence is also
low on thunderstorm development as it would be dependent on the
combination of the upper level flow and thermodynamics.
29
&&
.AVIATION...Southwesterly flow aloft with VFR conditions across
western Washington as mid and high level clouds work into the area.
Weak low level onshore flow will bring widespread MVFR cigs by
around 15Z, lifting and scattering 18-21Z from the interior to the
coast. More widespread mid and high clouds Friday night into
Saturday morning, with VFR conditions for most locations except the
coast where pockets of MVFR cigs with marine stratus. Light
southerly winds over the interior 3 to 5 kt will strengthen to 6 to
8 kt by early afternoon.
KSEA...VFR conditions with cigs 3500 feet or higher. Stratus
continues to be expected into the central Puget Sound with with a 70
to 90% chance of ceilings at the terminal at or below 3 kft. Best
bet for lowest cigs is 13-15Z with lifting and scattering after 18z.
VFR conditions Friday afternoon into Saturday morning with
increasing mid and high level clouds.  Light southeast winds 3 to 5
kts winds will veer to the southwest midday and and increase to 5-10
kt.
&&
.MARINE...A stronger frontal system approach area waters
today into the weekend. Seas will build to 9-10 ft this afternoon
into Saturday, with winds still expected to remain below 20 kt with
this frontal system. Seas will ease somewhat Sunday into Monday, but
then build into midweek above 10 feet for the coastal waters with
another system Tuesday into Wednesday potentially bringing in gusty
south winds.
&&
.SEW WATCHES/WARNINGS/ADVISORIES...
WA...None.
PZ...Small Craft Advisory from 6 AM to 5 PM PDT Saturday for Coastal
     Waters From Cape Flattery To James Island Out 10 Nm.
Small Craft Advisory from noon today to 11 PM PDT Saturday for
     Coastal Waters From Cape Flattery To James Island 10 To 60
     Nm-Coastal Waters From James Island To Point Grenville 10
     To 60 Nm.
Small Craft Advisory from 6 AM to 11 PM PDT Saturday for Coastal
     Waters From Point Grenville To Cape Shoalwater 10 To 60 Nm.
&&
$$

NWS SEW Office Area Forecast Discussion