A Nice Stretch of Summer

September 2, 2008

Snapshot A busy weekend for me while I helped out on the MDA Telethon.  But now it's back to weather.  I'm filling in this weekend as well, so it's day 3 of a 13 day stretch…anyone crying for me yet?

I know a lot of you weather geeks can't wait for winter, but I want some more summer (or early Fall warmth?).  I came in today, looked at the maps, and see that Mother Nature is going to deliver.  A relatively strong upper-level ridge is developing offshore and will pretty much sit there through at least the middle of next week.  This time of year the marine layer tends to thin easily with the loss of strong onshore flow.  The longer nights and cooler continent help that along.  Basically it becomes easier to get offshore flow or at least no significant onshore flow with a ridge nearby.  That's why the Coast often has more sunshine in September than any summer month.  That's the case the next 5-7 days.  With the ridge remaining offshore, I doubt it'll get to 90 degrees here in Portland, although stronger offshore flow Sunday-Monday might push us close.  At least this time of year even 90 degrees isn't so hot since temps rapidly move up/down from day to night.  The heat only lasts a few hours in the late afternoon.

So not too much to talk about weatherwise.  Enjoy the warm sunshine!    Mark Nelsen