Another inversion is in the making, which will keep the weather somewhat tranquil today and Wednesday. That means fog, low clouds and highs in the 40s at lower elevations, while upper elevations should see more sunshine and warmer temperatures.
Late Wednesday, things change as a parade of weather systems is forecast to move our way with more rain in tow. This pattern taps tropical moisture, so we might get some heavy rain and freezing levels may rise. We’ll see just where any heavy rain sets up. Remember, last go-around was north of Clark County, with flooding and landslides in much of Western Washington.
If we receive some moderate to heavy rainfall late in the week, it would help us catch up in the rain department. The month-to-date rainfall at Vancouver’s Pearson Field is only 0.45 of an inch, about 2 inches below average.
Late in the week, when the moisture arrives, only the higher elevations — say, above 6,000 feet — will get snow. It appears the snow level may drop down to pass levels by the end of the weekend. After that, we remain on the cool side of the jet stream. There will not be a whole lot of moisture and we might get some frost if skies clear out at night. I’m thinking the last week of the month will settle down and be relatively dry and cool.