Another Round of Sweaty Weather

September 26, 2010

Got back from a (very brief) beach vacation and then sat through an entire day of drizzle, light rain, and gloomy weather at home.  But at least my garage is all cleaned and vacuumed out, fish tank is spotless, and I have fresh shirts pressed for the upcoming workweek.  We camped at Manzanita (Nehalem Bay State Park).  That might be one of my new favorites, although I hear it can get rough in summertime with the northwest wind cranking around Neah-Kah-Nie mountain.  We just had light south wind Friday and Saturday which was perfect.  Forgot that EVERYTHING gets wet when you have a clear night at the beach…geez, couldn’t believe the condensation outside AND inside the tent.  That reminded me why I prefer camping in the mountains and drier eastside of Oregon.   

Hard to believe we can go the entire summer with really no humid weather, and then we get round #2 of tropical moisture in less than two weeks during the last few days of September.  Dewpoints are once again back into the 60s this evening due to a very warm and moist airmass moving up from the tropics around the Dateline.  Check out the precipitable water image…widespread 1.25″+ area from Vancouver Island to just off California that extends all the way back to northwest of Hawaii.  I haven’t analyzed maps in detail like I would at work, but I’ve seen enough to realize the next two days and anights will be very warm and humid.  More record warm temperatures on the way most likely.  I notice the WRF-GFS and our RPM keep temps near/above 60 through Monday night.  That’s very unusual for early Fall.  Bascially the moisture is here (low level and higher up) with nowhere to go until we start getting some light offshore flow to dry things out on Wednesday here at the surface.  For that reason it’s hard to believe a “mostly sunny” forecast for Monday, probably more like partly cloudy.  But with a temp starting in the lower 60s…80 won’t be too far away with some sunshine….regardless, it’s going to be a very humid and warm day Monday!

Chief Meteorologist Mark Nelsen