Clouds have been increasing throughout the day ahead of a weak cold front that will enter the area later this afternoon. A line of moisture is also accompanying this system and moved onshore Friday morning. There is an unstable air mass associated with this system which has been setting up the chance for isolated thunderstorms. The areas with the best chance to see these storms will be Northern California, the Klamath Basin, and areas of the Cascades. This chance will increase in the early afternoon as the line of moisture makes it further inland. The air mass is still a bit dry overhead so the rain that moved in evaporated before reaching the ground. Showers will continue into the overnight hours for the Basin area. There is very little moisture incoming with this system so rainfall has been, and will be, light and isolated.
After the system moves out of the region we will begin to dry up as a weak ridge of high pressure will move in. This will allow for sunny skies and warmer temperatures for Saturday and Sunday morning. If heading out to the Boatnik or the Azalea events, be sure to pack plenty of sunscreen and water as it will be sunny, dry, and warm. The ridge will begin breaking down Sunday afternoon and clouds will once again build back in. Another cold front, this one a bit stronger, will move in Monday afternoon allowing for a line of showers to push in the morning of Memorial Day. Moisture will be abundant with this system, so after the initial line of showers, post-frontal activity is likely to persist for the rest of the day. Right now, models have the showers falling at the coast and in the Cascades for Memorial Day morning. However, it is likely we cloud see this area increase the closer we get to the system.
After the rainfall Monday, Clouds will stick around for the better part of the week. High pressure is looking again to build in by Friday but we will see how much and for how long as we move through the rest of this week.
Thanks for logging on and enjoy your weekend!
Meteorologist Seth Phillips