South Hill, Virginia 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

155
FXUS66 KSEW 242213
AFDSEW

Area Forecast Discussion
National Weather Service Seattle WA
313 PM PDT Sun May 24 2026

.SYNOPSIS...
A low pressure system is on track to bring rain, breezy winds,
and chances for thunderstorms to the region on Monday. Showery
weather continues on Tuesday, with a return to high pressure
likely later in the week.

&&

.SHORT TERM /TONIGHT THROUGH TUESDAY NIGHT/...
A pleasant day across western Washington today with scattered
high clouds overhead and temperatures in the upper 50s to low
60s as of 1PM this afternoon. Through the next system is not too
far offshore with clouds already starting to move in over Neah
Bay. Most all the area should remain mostly sunny through the
rest of the day with clouds increasing overnight. Highs should
reach the upper 60s with a few low 70s in some spots.

Rain will start to move in along the coast early Tuesday morning
before filling in across the interior after sunrise and into the
late morning. Winds will also start to increase in the morning,
with the peak winds expected late morning/early afternoon as the
frontal system traverses the area. Wind gusts up to 25-35 mph
will be possible for most, through for the coast and areas
around/north of Whidbey Island, gusts up to 35-40 mph can`t be
ruled out. Behind the front, rain will devolve into scattered
showers and a few isolated thunderstorms. The best chances for
thunderstorms will be along the coast and across SW WA Monday
afternoon and early evening, with probabilities of around
15-20%. With the rain, highs will be much cooler, in the upper
50s to low 60s.

Unsettled weather continues into Tuesday as the low center
moves through the area. Scattered showers and a few isolated
thunderstorms remain possible throughout the day. Highs a touch
warmer, in the low to mid 60s.

Unseasonably large waves will begin to arrive at the coast late
on Monday, before peaking early Tuesday morning to around 14 to
16 ft, bringing high surf conditions to the coast. Waves will
slowly decrease throughout the day Tuesday.

&&

.LONG TERM /WEDNESDAY THROUGH SUNDAY/...
The low pressure system responsible for Monday and Tuesday`s
weather will continue to dig south, leaving the PNW in split
flow to gentle ridging into the mid and late week. As such,
temperatures begin to warm from Wednesday onward, reaching highs
back into the mid 70s by Thursday. Ensembles and deterministic
guidance are hinting at broader troughing over the NE Pacific
late in the week for potential for more unsettled weather. Low
pressure over the intermountain west will also begin to drift
northward, pushing moisture from the east side over the
Cascades, with chances for showers beginning Thursday through
the end of the week. Upper level troughing over the area may
provide enough instability for a slight (10-15%) chance of
thunder over the mountains as well.

Long period swell will arrive to the coast on Thursday, which
will pose a bigger threat for significant wave runup on coastal
beaches.

62

&&

.AVIATION...
Flow aloft will become southwesterly tonight as an upper level
trough approaches the Pacific Northwest from the northeastern
Pacific. Satellite imagery shows stratus has mostly scattered
across the area this afternoon, which has resulted in VFR
conditions at all area terminals. High clouds will continue to
stream in overhead and increase tonight ahead of a frontal
system on Monday. VFR conditions will largely prevail through
the overnight period, but expect a gradual lowering of the cloud
deck heading into Monday as the system approaches. Surface winds
will remain out of the southwest and persist between 5-10 kt.

KHQM will see conditions deteriorate first, with MVFR ceilings
moving into the terminal around 12Z. Conditions look to be a bit
slower to drop across the interior, with guidance suggesting
VFR conditions hanging on into the afternoon with a BKN/OVC
cloud deck lowering to around 4000-5000 ft. Rain will move
inland along the coast between 11-14Z and into the interior
roughly between 15-18Z. Southerly winds will increase across the
area Monday morning as the system approaches, with gusts to
20-30 kt possible at times (especially for terminals along the
coast and from KPAE northward).

KSEA...VFR conditions will prevail through the remainder of the
day, with increasing high cloud cover expected at the terminal.
Southwesterly winds will persist between 4-8 kt through this
evening. Rain expected to move into the terminal between 16-18Z
Monday as a frontal system moves into the area. Southerly winds
will increase on Monday morning, and will persist at 8-12 kt
with gusts to 20-25 kt possible at times. VFR conditions look
to hold into Monday afternoon, with BKN/OVC cloud deck between
4000-5000 ft.

14

&&

.MARINE...
High pressure will remain offshore today keeping conditions
relatively tranquil across the coastal waters. A low pressure
system will begin the area tomorrow, with a cold front
traversing the area waters through the morning and afternoon
hours. Southerly winds will increase early tomorrow morning
ahead of the front. Most of the coastal waters will see high-end
Small Craft Advisory winds, but gusts to gale force will be
possible over the northern-most areas, for which that has been
upgraded to a Gale Warning. Through the interior coastal waters
from Puget Sound up through the Northern Inland Waters, winds
will increase slightly later in the morning and persist into the
afternoon as the front moves through. Probabilities have
decreased for gale force gust across most of the interior
coastal waters, but a few gusts to gale cannot be ruled out in
the East Strait of Juan de Fuca (30-60% chances).

Winds will decreased still remain elevated through much of the
day, it isn`t until Monday night into Tuesday when winds begin
to calm down across the area as the low pressure center moves
across the region.

High pressure quickly rebuilds as the system departs on Tuesday,
with winds switch back to north/northwesterly Tuesday morning
and increase to SCA criteria through the outer coastal waters
by Tuesday evening. This pattern looks to persist through the
end of the week. Beginning Thursday, lower pressure over land
will increase the onshore gradient, funneling wind through the
Strait of Juan de Fuca. Winds increase during the day,
potentially reaching gale force by Thursday evening and into
Friday.

Seas 5 to 7 ft will increase through the day Monday, peaking up
to 14 to 16 ft Monday night into early Tuesday. Seas will slowly
decrease throughout the day Tuesday and may briefly drop to
around 8 to 10 ft on Wednesday before climbing back up to around
10 to 12 ft Thursday.

Steep seas through the outer coastal waters will likely return
Tuesday night into Wednesday as the local winds increase and the
dominant period decrease to around 8-10 seconds. Long period
swells 7 to 10 ft with a period of 15-18 seconds will arrive to
the coast on Thursday, pushing the significant wave height back
up above 10 ft. Waves look to start to ease on Friday below 10
ft.

62

&&

.HYDROLOGY...
The daily hydrology discussion has ended until the start of the
next rainy season; it will only be updated during this time as
needed.

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...None.
PZ...Small Craft Advisory from 2 AM Monday to 5 AM PDT Tuesday for
     West Entrance U.S. Waters Strait Of Juan De Fuca.

     Small Craft Advisory from 5 AM to 5 PM PDT Monday for
     Admiralty Inlet-East Entrance U.S. Waters Strait Of Juan
     De Fuca-Northern Inland Waters Including The San Juan
     Islands-Puget Sound and Hood Canal.

     Gale Warning from 11 PM this evening to 11 AM PDT Monday for
     Coastal Waters From Cape Flattery To James Island 10 To
     60 Nm-Coastal Waters From Cape Flattery To James Island
     Out 10 Nm.

     Small Craft Advisory from 11 AM Monday to 5 AM PDT Tuesday for
     Coastal Waters From Cape Flattery To James Island 10 To
     60 Nm-Coastal Waters From Cape Flattery To James Island
     Out 10 Nm.

     Small Craft Advisory from 11 PM this evening to 5 AM PDT
     Tuesday for Coastal Waters From James Island To Point
     Grenville 10 To 60 Nm-Coastal Waters From James Island To
     Point Grenville Out 10 Nm-Coastal Waters From Point
     Grenville To Cape Shoalwater 10 To 60 Nm-Coastal Waters
     From Point Grenville To Cape Shoalwater Out 10 Nm.

&&

$$