Weather impacts for Friday night through the weekend associated with a strong winter storm system. The primary effects will be strong coastal wind, heavy Cascade snowfall, and large and dangerous surf conditions.
SYNOPSIS: The strongest weather system so far this winter will impact Southwest Washington and Northwest Oregon Friday night through the weekend. A warm front moves across the area Friday, which will boost snow levels above the Cascade passes. Strong south wind will develop along the coast early Friday evening, followed by very windy conditions late Friday evening through Saturday morning. The cold front is expected to reach the coast around midnight, and then sweep inland early Saturday morning. Snow levels will plummet late Friday night and Saturday, falling well below the Cascade passes by mid-Saturday morning. Heavy snow will occur over the weekend, especially Saturday. The storm system will also result in large and dangerous surf conditions along the coast.
AREA IMPACTS and TIMING:
Peak winds 40 to 50 mph with gusts to 65 mph.
Seas reaching around 35 feet.
Strongest wind Friday evening through Saturday, primarily Friday evening with the warm front, and late Friday night through Saturday morning with the cold front.
Seas building to 20 ft Saturday, and then peaking Saturday night.
Beaches and headlands: Wind speeds increasing to 35 to 45 mph with gusts up to 75 mph.
Coastal communities: Wind speeds increasing to 30 to 40 mph with gusts up to 60 mph.
Strong wind developing Friday evening and continuing through Saturday. Peak wind periods appear to be Friday evening through late Friday night and Saturday morning through early Saturday afternoon. Wind decreasing late Saturday afternoon.
Gusts 30-40 mph with isolated gusts to 45 mph.
Late Friday night through Saturday afternoon.
1-2 feet of snow.
Late Friday night through Sunday.
· Power outages possible due to strong winds that may break weakened branches or limbs.
· Snow levels will rise to 6000 feet in the South Washington Cascades to 7000 feet in the Central Oregon Cascades Friday afternoon. Snow levels then fall to 2500 feet to 3500 feet Saturday morning. The Cascades are likely to receive 1 to 2 feet late over the weekend, with the higher amounts at ski resorts and higher elevations.
· Large and dangerous seas and storm force wind gusts in the coastal waters may restrict marine vessel traffic. In addition, beach erosion and debris, including large logs, will impact the surf zone.
From Chris Burns:
The National Weather Service, in addition to the current Special Weather Statement concerning the powerful storm anticipated this weekend, has issued two new advisories.
A High Surf Warning has been posted for the period Saturday morning 10:00am through Sunday morning 10:00am. Storm seas offshore could reach 35 feet and surf on the beaches will be immense, causing run-up clear to the sea cliffs. The beaches will be inherently quite dangerous.
The National Weather Service has also issued a High Wind Watch for tomorrow night for steady southwest winds 30-40 knots gusting 65 knots or higher along beaches and headlands, and up to 60 knots in our Central Coast communities.
Brace for the biggest storm of the season. Full details in tomorrow morning’s Weather or Not report.