Wednesday, September 21, 2016

Big Storm for the Rockies.

We will get some cooler air come Wednesday evening, but likely most won't notice it much.  The Sierra could get a dusting of snow and freezing temps down below 7000F.  Tahoe will see afternoon highs drop from about 80F to 50F.  The Wasatch (near Salt Lake City) could be receiving multiple feet of snow.  Out in the Gulf of Alaska weak low pressure is dominant in the west and a high in the east.   We are starting to see a swing toward fall, and even winter like weather.   A slow shift.  Locally, it feels kind of like summer this morning.  Upper 50s and foggy.

Expect more of the same over the next few days, with it being a bit cooler Thursday and into Friday.  After that we see a return to warmer, sunnier weather, not dissimilar from this past Saturday through Monday.  Ahhh.  Hot autumn.  Actually, it won't be hot like Sunday.  More warm like Monday.  That high pressure slowly builds east and west, and will become the dominant feature in the Gulf through the next week.  We should see sunnier, warming weather, but it may shift north, which would bring a wind gradient, and perhaps fog.  Will keep an eye on next week. For now, the weekend looks excellent.  Upper 70s and sunny, with lighter winds.  Until then, upper 60s/low 70s, morning fg and afternoon onshore breezes.

I don't see much in the way of autumn swell makers on the charts until October.  So, not a complete shift.  The SPAC will send a swell for this weekend.  Then we might be looking at a week plus with no significant swells.  Make of it what you can, and remember that the NPAC will turn on soon enough.

PS.  It has been great weather for tomatoes.  More ripening every day.

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