A strong high pressure area continues to our east with a weak low pressure area off the coast. Sub tropical moisture continues to be pulled northward into Northern California. Today and Sunday the north state will be partly cloudy to partly sunny with showers and and thunderstorms over the foothills and mountains with a chance of one moving over the valley. Temperatures will cool 2 to 4 degrees each day. Light to moderate south to southwest winds will occur in the afternoons.
Monday a low pressure area will develop of the Canadian coast. This will weaken the high pressure area and begin to push the sub tropical moisture eastward. Monday there will still be isolated thunderstorms over the higher elevations and Tuesday there will be very isolated activity over the northern and east mountains. Temperatures will cool to a slightly below normal by Tuesday.
Yesterday it looked like the weak low pressure area, currently off the coast, would be pulled northward into the Canadian low. However, now it looks like it will remain off the coast and then move across the north end of the state late Wednesday and Thursday. (see map below). This will bring another chance of showers and thunderstorms over the northern mountains Wednesday afternoon and Thursday. Temperatures Wednesday and Thursday will be normal or a a few degrees below normal. Light to moderate southwest winds will occur in the afternoons.
Friday through the weekend we will be back to sunny skies and normal temperatures.
Weather Outlook for Redding, Shasta Lake City, Anderson, Cottonwood, and Red Bluff