Marine Weather and Tide Forecast for Bothell East, WA

SHORT TERM /TONIGHT THROUGH SATURDAY NIGHT/
An upper level trough will develop over western Washington today, bringing increasing onshore flow over the area. Expect cooler temperatures over the next couple of days with unsettled weather. High temperatures will remain in the upper 60s into lower 70s this afternoon. Areas along the coast will see temperatures in the low to mid 60s. Weak zonal flow tonight may lead to a brief convergence zone later tonight across Snohomish County, but latest guidance shows it would be pretty weak if it did develop.

As troughing deepens into Friday, an upper level low will develop offshore of Vancouver Island. Another round of morning clouds on Friday with a slight chance of drizzle in the morning.
Dry conditions through Friday with high temperatures once again in the upper to lower 70s across the region. The upper level low will move onshore on Saturday, bringing widespread rain showers to to the region. Additionally, there is a 15-25% chance of thunderstorms, primarily south of Snohomish County at times throughout the afternoon. Winds may be breezy at times in and around showers. High temperatures remain in the mid to upper 60s, while overnight lows stay in the mid 50s.

LONG TERM /SUNDAY THROUGH THURSDAY/
Conditions look to start drying out into Sunday, with some lingering showers likely in the Cascades and the Olympics. An upper level ridge will begin to build offshore on Monday, introducing a slow warming trend through midweek. Some ensembles suggest weak troughing Tuesday/Wednesday that could bring some PoPs to the region, but for now, looks like dry and warm conditions will manifest.

Mazurkiewicz

AVIATION
A generally dry cold front pushed through terminals earlier this morning, with the front spanning east of the Cascades down to Vancouver WA this afternoon. The flow pattern aloft will remain influenced by troughs, keeping the flow west/northwest. CLoud coverage has decreased some this afternoon, but remains broken across the interior and around Neah Bay. VFR to MVFR conditions will improve to VFR for all except the coast this afternoon. A weak convergence zone in Puget Sound may produce brief pockets of MVFR, but showers and erratic winds are not expected through the evening.
Winds will ease from the north to the northwest 5-10 kt this evening, and to the south/southwest Friday morning. There remains a 40-50% chance of MVFR ceilings Friday morning with another marine push, with the lowest ceilings from 12Z-21Z.

KSEA...VFR with ceilings slowly lifting through the afternoon/evening. A 40-50% chance of MVFR ceilings remains on Friday from 12Z-21Z, improving to VFR in the afternoon. North to northwest winds 5-10 kt will switch to the south Friday morning.

HPR

MARINE
A cold front pushed through the waters this morning, with the coastal waters still seeing gusty winds over 20 kt this afternoon.
The inherited small craft advisory will continue through 5 am Friday for the north winds, and seas of 8 to 11 ft. Another frontal system will move across the waters Friday into Saturday. While impactful winds and seas are not expected with this system, portions of the southern interior and coastal waters will have a 20% chance of thunderstorms with shower activity produced from this system.
Conditions will become more benign going into next week as high pressure rebuilds over the coastal waters. Seas decrease this weekend into next week down to 4-6 ft.

HPR

FIRE WEATHER
A weak and mostly dry frontal system passing over the region has brought a return to onshore flow, maintaining cooler and more moist conditions throughout the weekend. Light precipitation is likely late Friday into Saturday as another weak system moves over the region. Conditions are expected to gradually warm and dry into next week, though fire weather concerns remain low at this time.

15

SEW WATCHES/WARNINGS/ADVISORIES
WA...None.
PZ...Small Craft Advisory until 5 AM PDT Friday 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- Coastal Waters From Point Grenville To Cape Shoalwater 10 To 60 Nm.