Our weather picture continues to feature a giant area of high pressure along the west coast bringing Northcentral Washington sunshine and much above normal temperatures as we head into this Mother’s Day weekend. Temperatures will rise a little each day with it culminating on Sunday with valley temperatures in the 80s and the Moses Lake area at 90. This lovely weather will likely draw people out onto area rivers and lakes. Remember, the water temperatures remain cold and cold-water shock can kill you within minutes. Be prepared if going out to recreate this weekend, bring your life jacket. Skies will remain mostly clear and sunny today with some high-based cirrus clouds moving through from time to time, warmer too with highs this afternoon in the mid to upper 80’s.
Even warmer weather for Saturday, under sunny skies we could see high temperatures near 90 degrees with overnight low temperatures near 60. Sunday we will see an increase in west or southwesterly winds as temperatures begin to cool on the west side. Some afternoon wind gusts of up to 20 mph is expected from the Cascade valleys south of Lake Chelan through the Waterville Plateau onto the Columbia Basin and Spokane area.
Mostly sunny in the Wenatchee Valley for Mother’s Day Sunday, we will see west winds 5-15 mph with afternoon highs still unseasonably warm for this time of year into the upper 80’s.
Our overall weather pattern begins to change on Monday as a marine push of air brings in cooler air. Under mostly sunny skies Monday, we will see high temperatures in the lower 80’s. That`s still about 10 degrees above normal highs for May 13th.
After a final dry day on Tuesday, with increasing clouds and highs near 80, the weather pattern really takes a significant turn. Expect mostly cloudy skies and much cooler temperatures on Wednesday as the first of several weather systems move through Northcentral Washington. With a 20% chance of scattered showers Wednesday highs will generally be in the mid 70’s.
The subsequent fronts for Thursday onward become stronger and wetter, so the best chance for rain will be by the end of the workweek. Temperatures by then will have cooled into the 60s and lower 70s. The overall pattern isn`t particularly good for thunderstorms or strong winds, so the primary weather will be showers or periods of rain.