What a difference a day makes! As the forecasted strong west winds materialized on Thursday afternoon, our air quality improved drastically. We will continue to enjoy good air quality through today as cooler air is moves into the region in the wake of yesterday`s cold front. The upper trough associated with yesterday`s front will also swing through Northcentral Washington today with high temperatures below normal in the upper 70’s. We will also see strong west to northwest winds today 15-20 mph with gusts to 28 mph.
For Saturday as we kick off the final weekend in August, the winds aloft will continue with winds on Saturday around 10-15 mph, highs in the upper 70’s. Sunday through Thursday the weather flow over the region will be heavily influenced by the presence of a blocking upper level high over the Gulf of Alaska, which will promote downstream troughing over western North America including the northwestern U.S. through mid-week. This will likely lead to cooler than normal temperatures through the weekend and into the beginning of next week with highs in the upper 70’s to lower 80’s. Out air quality will also begin to diminish on Monday as we transition back to a northerly wind which could bring smoke back into the Wenatchee Valley.
Late next week it looks like the upstream high will weaken and be flattened by a more progressive westerly flow with potentially another trough digging into the area on or about Thursday, which could mean possible rain showers.