.LONG TERM /WEDNESDAY THROUGH FRIDAY/...
While temperatures will average above normal for much of this
period...a pattern change from one of a progressive flow to a more
highly amplified blocking one will lead to lower mercury readings as
we head from Friday into the ensuing weekend. The culprit for this
will be the building of a west coast ridge that will lock in a +PNA
pattern as we head into the middle of the month.
This supports the 6 to 10 and 8 to 14 day temperature outlook from
the Climate Prediction Center which suggests below normal
temperatures of our region for much of the middle of the month.
Given the return of a locked in longwave trough over the eastern
conus...we can look forward to a higher potential for lake snows and
more frequent frontal passages from clipper systems.