A thundering round of applause please … clap, clap, clap. That is what nature provided Friday evening over many parts of Clark County as an isolated thunderstorm developed south of Washington and moved northward. A few brief downpours or sprinkles accompanied the clouds and thunder but amounts were quite light in most locations. I had reports from a trace to a few hundredths of an inch.I guess that was our Friday surprise. I expect no surprises the next five days or so, with fair skies and highs into the 80s all week. How does that sound, folks? A pleasant way to end the summer and lead up to the arrival of autumn Saturday at 7:49 a.m. Of course, at this season, you never know when a system will drift over with showers.It is anything but late-summer weather in southern Alaska. The National Weather Service said Saturday afternoon, “A powerful autumn storm is forecast to bring strong wind and heavy rain to much of South-central Alaska. Due to recent rainfall, the ground is saturated leading to a greater risk of flooding and fallen trees. Significant power outages are possible. Winds in Anchorage could gust to 65 mph, and farther east in the higher elevations winds could gust to 110 mph.”It won’t be too long before a barrage of weather systems ushers in our rainy season. Hopefully that will wait until late October or so.For the first two weeks of September, Vancouver’s mean temperature, 66.2 degrees, is just about normal. Rainfall is at 0.04 of an inch, about a half-inch below average.Patrick Timm is a local weather specialist. His column appears Tuesdays, Thursdays and Sundays. Reach him at http://weathersystems.com.