A Big Cooldown

July 25, 2006

A brief note tonight since I got busy working with some new software/equipment and ran out of time.

Marine air still surging inland, but high geopotential heights (notice 500mb heights) are keeping the layer fairly thin.  Same thing for tomorrow and Thursday.  So temps will bounce back to the 85-90 degree mark the next 2 days.
All models show a pretty good trough setting up offshore and then swinging through Washington in the Friday-Tuesday time period.  This is a very "early July" weather pattern, unusual for late July, but not unprecedented.  Looking at the 00z GFS, sure seems like showers could show up at some point, but for now I left them out of the forecast.  But we’ll be down about 30 degrees from last weekend!…Mark