Tuesday, November 17, 2009
Watch Out Olympics!
Today was a fairly quiet day...the front passed through this morning and with the low going north of us, winds relaxed substantially this morning.
Classic post-frontal showers and sunbreaks (see latest infrared picture)....and using the radar one is able to time outdoors activities, such as biking, to stay dry. Weather radar can change your life!
An enhanced band of convection should arrive later tonight...just in time to dampen the views of the Leonids. I would head to Vantage if I really wanted to see them...or hope for a short break in the shower clouds.
Tomorrow another low will approach (see forecast graphic), but it will head far north of us...thus, no windstorm in the lowlands...with one MAJOR exception. Strong southeasterlies will again develop over NW Washington from Whidbey Island north to Bellingham and east to the San Juans (see graphic of forecast wind speed). There will be several days of moderate to heavy rain on the Olympics and the mountains of SW Washington (see graphic for 24-h precipitation ending 4 am on Thursday). Flooding will probably return to the Skokomish.
By the way, I have noted a few media outlets and environmental groups have suggested that yesterdays heavy rains are some indication of global warming's effects. That is simply not true. I gave a talk on this subject today at the UW. There is NO evidence that we have been getting heavier rains lately in the Northwest. There is no trend over the last half-century. Global warming due to mankind's ejection of greenhouse gases MAY change the amount and intensity of rain later this century, but you can't blame our pineapple expresses on human intervention. Check the chapter in my NW weather book on local climate change to get more information on this subject.
Posted by Cliff Mass at 7:34 PM