I posted this image last night on our Facebook page (fox12weather), plus showed it on-air. It always surprises me how nice MOST of our 4th of Julys have been the past 8-10 years. In fact 1/2 of the past 8 holidays we’ve seen high temps at or above 80 degrees.
This weekend sure won’t be hot; I heard a radio DJ say that it would “be a hot weekend” just yesterday and almost burst a blood vessel while driving. That’s one of the reasons you shouldn’t rely on a 5 second radio forecast for your weather info. Of course if it comes from a meteorologist you’re fine.
Over the past 5-6 days we’ve seen a steady decline in forecast upper-level heights this upcoming weekend. As of last Friday-Saturday, models were showing a huge and hot upper-level ridge over us. As of tonight, it appears to be just flat and weak ridging overhead tomorrow/Saturday and again on Monday. In between, an upper-level disturbance passes overhead, basically “denting” the ridge, on Sunday. So quite a marine push gives us solid morning clouds at the Coast and Western Valleys Sunday. I lowered the forecast high to 73 for Sunday in anticipation of cloud cover lingering much of the day. There may be low clouds again briefly Monday morning (the 4th).
Chief Meteorologist Mark Nelsen