As a pacific ridge of high pressure continues to strengthen, our weather will remain clear and sunny with afternoon high temperatures above normal for this time of year. Wenatchee Valley weather for Tuesday calls for sunny skies and mild temperatures with highs in the upper 50’s. For Wednesday, the upper level ridge will drift farther east and the southerly flow will become even more established. This means we have a good chance of seeing upper 50’s to middle 60s for most of Northcentral Washington with sunny skies. These high temperatures will also promote accelerating amounts of low elevation snowmelt and runoff into low-lying fields and small streams. But, the good news is river levels are rather low and any increased runoff should generally be readily handled. The same weather is expected for Thursday with sunny skies, calm winds and afternoon high temperatures around 60 degrees. Normal high temperature for this time of year is 56 degrees.
By Friday, we will see a slight cool-down as the ridge of high pressure shifts eastward and a deep upper area of low pressure moves into California. This will turn the low-level winds to more of a northerly direction and could deliver a slight cooling in the lower atmosphere. We can expect mostly sunny skies to start the day on Friday with increasing clouds by afternoon with highs in the mid-50’s. Friday night, that area of low pressure in California will move north bring a 40% chance of light rain showers with overnight lows near 40 degrees.
Kicking off our weekend on Saturday, we could see some lingering light rain showers in the morning with mostly cloudy skies by afternoon with highs cooling down into the lower 50’s. Mostly cloudy skies expected for Sunday as well with high temperatures once again in the lower 50’s. Our weather quiets down again on Monday with mostly sunny skies and afternoon highs in the lower to mid-50’s.
As mentioned for the last few days, the combination of the incoming rain potential and continued mild temperatures into Saturday will continue to fuel snow melt/runoff contributing to field flooding and rises of streams and creeks. Potential flooding look to remain minor and tied to areas of poor drainage.