Bruce’s Briefs: Wx for 21, 22, 23, 24, Feb.

Ed. Note: Due to technical difficulties we were unable to post this until now (Saturday night). KH

You’d have to say that it was a pretty nice week in the Pacific NW and that will all change this weekend. This will start as weak onshore flow will begin today to be followed by a weak frontal system tonight and into Saturday. This will keep the pressure gradient weak and result in light wind over the Salish Sea for most of Saturday.

Sunday will be a completely different story as a much stronger front will come through the area. Plenty of breeze over the area and with frontal passage a strong onshore flow will develop in the Strait of JdF. This onshore flow will begin to ease on Monday.

Today’s charts show quite a different picture from last week where we had a strong high pressure(1041mb)off of California. That has weakened to 1030mb and shifted slightly to the west. The 500mb charts show a strong zonal flow over the Pacific which will continue to bring storm systems right into the Pacific NW.

The other feature to note is the remains of a cut-off low-pressure system off California which will bring rain into LA and some snow into the Sierra Nevada’s. All of which is needed.

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