Rain on the Way?

July 7, 2006

Visible satellite and pressure gradients show the marine airmass pretty much gone over inland areas this evening.  No low clouds along the coast mean sunshine to start AND end Saturday.  Quite a change in 24 hours with the gradients.  North Bend to Spokane was 11 millibars onshore last night, now it’s light offshore!  North Bend to Seattle is also flat.  So warmer temps tomorrow and even the beaches will be mostly sunny.  This is all from the "4 Corners High" moving back closer to the West Coast, but it won’t stick around long.  By Sunday night a pretty good marine push brings the clouds inland for Monday.

00z GFS is continuing the "trough & light rain midweek" theme.  I kept rain out of the 7 Day forecast last night because the GFS seemed way to aggressive for mid July.  It backed off a bit, but the ECMWF was stronger, so now they are in agreement on a trough passing through the Northwest Wednesday.  So rain is in the forecast for late Tuesday or Wednesday.  ECMWF bounces flat ridging back over us late next week, so maybe back to sun next weekend?  Models are all over the place after that time.

NOTE TO ECMWF FREAKS:  Since KPTV changed web providers last week, the ECMWF maps you can find on my personal weather page haven’t been working, but I fixed those links today…Mark Nelsen