Southerly flow aloft will bring some high clouds today. A weakening front will move through the area from the south monday afternoon and night. Low level flow will become offshore as the next system moves inland south of the area in the middle of the week. A weak upper trough will linger over the area into friday.
Showers over eastern washington will slop over the crest today in south to southeast flow aloft. Most of this activity is expected to remain in the mountains but a stray shower might creep into the lowlands east of puget sound. Elsewhere is looking dry today with some mid and high clouds. Highs will be a few degrees above normal.
A front move into western washington from the southwest on monday. Spotty light rain should develop at the coast and south interior in the afternoon and then the more northern areas in the evening. The gfs is faster spreading rain into the area but the slower solutions in other models are preferred given the negative tilt and splitting/weakening nature of the front.
The front will shift north and east of the area by midnight with only isolated showers in its wake. An upper low will be offshore on tuesday with a broad weak upper trough over western washington. This will be enough to maintain a slight chance of showers for the area. Schneider
Previous discussion...models having trouble coming up with a consistent solution for the upper level low later in the week. Both of the models have the low somewhere off the southern oregon/northern california coast on wednesday but the ecmwf has much more moisture embedded in the southerly flow aloft over the area. Model cross sections show this moisture is just mid and high level moisture and with the low well to the south the air mass over the area will not be very unstable. Will go for a mostly dry day on wednesday. after wednesday the low weakens into an upper level trough and hangs around over the area thursday for a chance of showers before kicking out to the north on friday. Model inconsistencies reappear for the weekend with the ecmwf bringing a front into the area saturday night while the gfs is much weaker with this system keeping it offshore. Will keep saturday dry with chance pops for saturday night. Highs through the period in the 50s and lower 60s. Lows mostly in the mid 30s to mid 40s. Felton
River flooding is not expected for the next 7 days.
Wa...none. Pz...none.
Weak low level offshore flow will continue through monday morning. The next front will arrive monday afternoon and monday night with small craft advisory winds likely. Low level flow will turn offshore tuesday night into wednesday then becoming light wednesday night and thursday. 33
A weak upper level trough is spreading light precipitation mainly to the cascades and eastern wa this morning. The flow aloft is southerly. Ceilings are mostly vfr except for patchy fog and low clouds in the south sound and coast. Offshore flow will increase this afternoon and evening for drier conditions. Patchy low clouds or fog may form in the south sound overnight. 33
Ksea...vfr conditions expected with light sw/w winds. Winds will become light e/ne overnight. 33