June 6, 2018 – A slight chance of isolated t-storms coast range today, otherwise dry weather through Friday. A chance of showers north of Redding Saturday then dry next week. Near normal temperatures next couple of days then cool over the weekend. Temperatures warming to well above normal by the middle of next week.
Weak upper trough now along the north coast will bring a slight threat of isolated thunderstorms to the coast range late this afternoon or evening. Otherwise the CWA will remain dry today with near normal temperatures.
A continued moderate delta breeze will keep temperatures in delta influence areas a little cooler than normal for this time of year. Any precipitation should remain north of the forecast area on Thursday as the weak shortwave feature shifts into the Pacific Northwest. Little change expected in daytime temperatures Thursday with moderate onshore flow continuing.
Overall airmass warms a little on Friday with daytime highs climbing to a little above normal. This warm up will be short lived however with a fairly significant cool off expected on Saturday as a Pacific trough pushes into the Pacific Northwest and NorCal.
Onshore flow and cooler airmass will bring a drop in temperatures as much as 10 degrees with highs Saturday coming in from 5 to 10 degrees below normal. Showers will be possible north of about Redding Saturday through Saturday evening with stability progs indicating enough instability for a threat of thunderstorms as well.
Extended discussion (Sunday through Wednesday)
From Sunday through Wednesday conditions will be dry over the interior of Northern California. Temperatures will be on the milder side through Monday then a warmup will bring back seasonably warm temperatures Tuesday with additional heating for a potentially hot day on Wednesday.