I know, it’s always a subjective thing (remember the mean rain lady?) but looking at this 7 Day forecast has to bring a smile to most people. Many days in the 70s beginning this weekend. Not hot, not cloudy and chilly. No need for either heat or air conditioning.
So why such a nice stretch? We don’t have a large or hot ridge of high pressure in the upper-atmosphere, but upper-level heights rise in general. A warming airmass with weak onshore flow just means temperatures rise about 10 degrees warmer than they have been during the past week. IF we had easterly wind and a real warm airmass we could still make it into the 90s this time of year. Tomorrow’s record high 94 degrees here in Portland was set just last year on September 11th.
Chief Meteorologist Mark Nelsen