More Rain for San Mateo Creek, and Trestles

17 02 2017

At 3:00 pm today, the City of San Clemente surf report from the pier reported sustained winds of 45 from the southeast.  That’s enough to grow waves locally.  Below is a screenshot from Surfline.com’s T-Street webcam; and it is only beginning to build.

The weather reports were predicting rain that would be the heaviest in the last 10 to 20 years (kind of a typical weather forecaster’s vague speak).  At any rate, below is a screenshot from Weather Underground showing the radar imagery for what is headed this way.

Lots of rain headed toward the headwaters of San Mateo Creek, our favorite Southern California pristine watershed that flows out to the Pacific at Uppers.  The bottom has already changed this season, with more to come.  It should set up some great waves by the time the summer south swells show up later this year.

In the meantime, maybe California is finally limping out of its long drought.

The El Nino winter last year fizzled out with no real rain, even though all the experts predicted heavy precipitation.  It may be that if you look at the last several El Nino events, the heavy rain doesn’t actually show up until the first rainy season after the sea surface temperatures return to an ENSO-neutral condition.

Regardless, it’s great to see the San Mateo flowing with life again.  Rain, rain, don’t go away.

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San Mateo Creek Flows Again!

14 01 2017
Looking southeast at the estuary/lagoon.  Note the breach to the right.

Looking southeast at the estuary/lagoon. Note the breach to the right.

It’s been a few years, but the San Mateo Creek watershed “sponge” finally got full and started to overflow.  That is, all the soils upstream got full of water and started to seep/flow into the gullies that make up the watershed.  And, down to the creek bed and out to the ocean.

The last time it really flowed significantly was in December 2010; and flow it did, for almost six months.  It will be interesting to see how long it continues to flow with the off and on storms predicted over the next week or more.

The Trestles and the watershed.

The Trestles and the watershed.

Could the Southern California drought finally have broken?  Too early to tell, but it’s off to a good start.

Word is the creek broke out of the estuary/lagoon through the sand berm and out onto the reef at Uppers this morning.  You can see by the mud plumes in the ocean that it has been flowing for several hours at the time of these photos about 4:00 p;m today.

As happens with natural water courses, each time it breaks out, the flow “braids” to a new path.  We all got used to the “lagoon” that was dug out by the 2010 storms.  This time, the flow shoots straight out, dumping a lot of sand, and probably some cobbles, on top of the reef just north of what we call “Garcia-land,”  which is the north shoulder of the point. Wonder what new shape the bottom will take now.  Maybe a lagoon on each side of the point?  Maybe a  “north bay” and a “south bay?”

From over Garcia-land.  Notice the muddy surfline water.

From over Garcia-land. Notice the muddy surfline water.

Enjoy the photos.  A video may show up over the next few days.

Liquid gold.

Liquid gold.

Filling the reef with sand.

Filling the reef with sand.