A high pressure ridge is slowly slipping to the east of our region. This was the cause of the mostly sunny skies and warm temperatures for Saturday. The only area that had more cloud coverage was the coast seeing overcast Saturday morning then progressing to partly cloudy skies by the afternoon. The ridge will leave our area by Sunday afternoon. This is when the next round of clouds will begin. Cloud coverage will increase throughout Sunday afternoon/evening.
Memorial Day will be partly to mostly cloudy in all areas. A stronger cold front than the one that passed Friday will bring in a better chance for shower activity and cooler temperatures. The moisture and frontal lifting that will occur will happen in the cooler overnight hours of Monday morning, therefore instability will be minimal. As of now, no thunderstorm activity is expected. Showers will be light and isolated with this system. Heaviest concentrations of rain will be along the coast and in the Cascades. The western valleys also have a chance for spotty showers as well. All activity should come to an end overnight Monday. However, this system will creep slowly through the area. So I expect that the clouds will hang around through the middle of the week. Another frontal boundary should swing through on Wednesday allowing for more isolated showers and cooler temperatures. Thursday should bring a ridge of high pressure and clearing with it. Clouds are expected to return to the area by next weekend.
Thanks for logging and enjoy your Sunday!
Meteorologist Seth Phillips