Rough Evening

January 12, 2010

Apparently I infected the weather center PC with virus or malware this evening…totally screwed up. Then Viagra ads started popping up as windows opened…nice. We DO have a nice little change in the forecast this evening. It’s not exactly a powerful storm, but a nice low pressure center moves north through our offshore waters tonight and tomorrow morning it arrives in Western Washington. There is a real nice pressure gradient straight up the Valley by late morning tomorrow. We haven’t seen a south wind gust over 30 mph at PDX since just before Thanksgiving! Hopefully I read the climate data correctly, but it shows how we’ve been missing good westerly flow for quite awhile. Anyway, a gradient of 9 to 12 millibars should produce gusts in the 30-40 mph range. Nothing too exciting, but we’ll take what we can get.

Beyond that it’s pretty quiet Thursday through Sunday. We get “leftover” rain Sunday as a system runs into California. They will really be under the gun next week. I see the 00z GFS seems slightly farther north with deep lows approaching the coastline next week. Something to keep a close eye on. That’s it; out of time for this evening.

Chief Meteorologist Mark Nelsen