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Not done with rain chances this week

Posted at 4:49 PM, Apr 03, 2019
and last updated 2019-04-03 20:49:45-04

More clouds from an ample onshore flow stream thru the area Wednesday with another chance for rain Thursday to Friday. Then the headline will shift to a warming trend. Temperatures will stay cooler than average for a few days but temperatures will warm to above normal by Sunday. Monday’s temperatures could be quite warm with offshore flow peaking.

We are in the middle of a shift from a very weak ridge to an upper level trough moving in for Thursday and Friday (it is actually two smaller waves). There is just a lot of moisture in the lower layers of the atmosphere so there is a mix of low and mid level clouds and that should continue thru Wednesday.

Today on Shell Creek Road #beonksby Dave Hovde-KSBY

Posted by Raquel Elias on Wednesday, April 3, 2019

Rain will return potentially as early as Thursday morning for parts of SLO county. What rain forms at that time looks very light. Opportunities improve Friday with the second wave of instability moving thru. I think max rain potential here is .25 inches or less for most locations. It is possible the hills of northern SLO county could see as much as .50″ Snow levels will be very high, not a local concern. No advisories in place or expected.

I think we’ll be done with rain before Saturday really gets going, Sunday and Monday high pressure builds back in for temps to quickly springboard from the 60s back into the 70s with some 80s potential Monday. Winds could get strong enough at this time for wind advisories for SB county Mountains, we’ll track that.

Beyond Monday models don’t agree. The Euro likes rain potential to return next week but the American model doesn’t. At this point I am going to leave out the rain potential and watch to see if better alignment takes place.