A strong upper level ridge and offshore surface flow will give one more sunny and warm day. Record highs are likely wednesday. Offshore flow will weaken on thursday resulting in lower temperatures. A front will spread light rain northeast across the area on friday. There will be a chance of showers next weekend with near normal temperatures.
More high temperature records fell today under sunny skies and a brisk east wind. Mid 70s to low 80s were pretty common. It`s a real scorcher, for march. Seatac reached 79 by 3 pm, making it the hottest march 19, hottest march day, and hottest winter day, ever.
Offshore surface flow will keep things toasty wednesday with the thermal trough right over puget sound. The forecast high is 76, another record. On wednesday the coast will have a bit of onshore surface flow, and highs there will be around ten degrees lower than today.
As offshore flow decreases wednesday night into thursday, a weak southerly surge will develop over the oregon coast and move north. this will give some late night and morning stratus to the coast and portions of the interior and will result in lows dropping more uniformly into the 40s. Southerly flow aloft may allow isolated showers over southern sections in the afternoon and evening. Highs on thursday will still be well above normal in the interior, in the mid 60s, but nearer normal on the coast, in the mid 50s.
On friday a negatively tilted trough, meaning one that is weakening, will move inland. This will spread light rain onto the coast in the afternoon and inland thursday evening. Burke
Showers will follow on saturday. Models are generally dry on sunday, then more weak systems arrive monday and tuesday. Have generally followed the models as far as pops. Temperatures will still be a few degrees above normal each day, with highs generally 55-60. Burke
River flooding is unlikely over the next seven days.
Wa...none. Pz...small craft advisory until noon pdt today for coastal waters from james island to point grenville 10 to 60 nm-coastal waters from point grenville to cape shoalwater 10 to 60 nm- coastal waters from point grenville to cape shoalwater out 10 nm.
small craft advisory until 8 pm pdt this evening for central u.s. Waters strait of juan de fuca-coastal waters from cape flattery to james island out 10 nm-west entrance u.s. waters strait of juan de fuca.
small craft advisory until 2 pm pdt this afternoon for coastal waters from cape flattery to james island 10 to 60 nm.
Offshore flow will persist into wednesday afternoon with an area of high pressure east of the cascades. Breezy winds near the gaps of the coastal terrain. Strongest easterly winds will be along the central strait of juan de fuca. Light onshore flow developing on thursday ahead of a weakening front spreading into the region on friday.
Low level offshore flow continue into tonight as an area of surface high pressure resides east of the cascades. The air mass will be dry and stable with southeasterly flow aloft. Vfr conditions. Gusty easterly surface winds will persist across portions of the southern sound through this evening, breezy elsewhere. Gusts generally up to 28 knots at ksea and khqm with offshore flow.
Ksea...vfr conditions continue. Easterly winds 10-20 knots through this evening with gusts generally up to 28 knots. Winds will subside into the overnight hours after 05z with northeasterly winds 5-15 knots. Jd