Tuesday, January 29, 2019

Brief Shower, Wednesday Night and This Weekend.

Not rally surprised by the clouds and brief shower on the west side this morning.  A narrow plume of moisture is coming ashore just to our north right now.  This is all that remains of a storm that weakened significantly as it moves southeast.  We might see another shower in the next hour or so, but this system is mostly east of us now and will dissipate in the valley through the afternoon.  We are still expecting plenty of sunshine today and temps in the low to mid 60s.  Yesterday we hit 71.2F around 3:45 yesterday at king and Van Ness.  That is when we saw the most sun as well.  Swell period has dropped from 15 seconds down to 13 seconds.  Height has dropped about a foot as well.  Winds are still light.  Good day to hit the water.  Just don't expect too much.

It is grey right now, but this should break up in the morning.  It now looks like Wednesday will be another pleasant day, with more sun than clouds, light winds, and temps in the low to mid 60s.  That storm is going to take its time arriving, and will show up after sunset.  While it takes its time, it will build some in strength.  We are now looking up at a half inch of rain falling Wednesday night.  Showers could continue into Thursday morning, but should end well before noon.  It will be a quick punch.  This storm does not look like it will get much up into the Sierra, as it moves inland, and then south, down through the Central Valley.  A decent water maker, but not so much for the snow. Maybe a few inches up on the highest peaks.  Light rain below that.

It will be a little cooler behind the storm on Thursday.  Clouds should clear a bit, but the sky will not be clear.  Light winds again.  This mornin's GFS run is suggesting that the Friday storm will also be delayed, perhaps by up to 24 hours.  As it looks now, light rain arriving overnight on Friday.  The system really pushes on shore in the morning Saturday, and we could see more than a half inch during the day.  Storm continues overnight with another half inch, but most of this coming before midnight.  Rain continues on Sunday, but the bulk of the system will be in the Sierra by then.  This is a pretty big range in timing since yesterday morning's run.  Will monitor.  Plan for a wet weekend either way. Just might end up with a decent Friday and a wetter Sunday.


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