2020/2021 California and Southwest Weather Discussion Thread

[Mr Marine Layer 1422]

Better sunshine on Saddleback today at 5 PM.

 

[Mr Marine Layer 1422]

Lots of marine layer haze in the above photo and possibly some low clouds on the horizon as well.

[Mr Marine Layer 1422]

Mostly clear and mostly chilly today.

[Mr Marine Layer 1422]

Air quality not looking to be that great.

[Reg1992 233]

Air quality not looking to be that great.

 

I noticed that today as well.

 

NWS has upped their precipitation total predictions for Thursday. This morning they had my area at 0.1-0.25", now it's 0.25-0.50" for Thursday's cold front. Snow level could be around 3500 feet.

[Mr Marine Layer 1422]

While PNW gets snow, we get another cool, partly cloudy day here with nothing to talk about.

[Mr Marine Layer 1422]

Haze will stick around until we can get some rain to wash it out or some offshore winds to blow it out.

[Omegaraptor 2393]

While PNW gets snow, we get another cool, partly cloudy day here with nothing to talk about.

 

No snow in Portland, but then again Portland is pretty much CA anyway nowadays.

[Reg1992 233]

NWS adjusted precipitation totals down again.

[Mr Marine Layer 1422]

Getting tired of this stagnant haze/inversion pattern.

[Mr Marine Layer 1422]

Saddleback Mountain is no longer visible here.

[Reg1992 233]

Saddleback Mountain is no longer visible here.

 

It was never visible from this side of the mountains today.

[Reg1992 233]

NWS adjusted totals upward, again.

[Mr Marine Layer 1422]

NWS adjusted totals upward, again.

Keeps going up and down.

[Reg1992 233]

Another day of mediocre air quality. At least it makes for an interesting view from higher elevations.

 

[Mr Marine Layer 1422]

Hope the rain will improve our air quality. It's been a stagnant onshore flow for a week now, which is quite unusual for this time of year.

[Mr Marine Layer 1422]

For the 16th time in the last 17 days, the sunrise is at 6:55 AM. In the same time, the sunset has changed from 4:52 PM to 5:06 PM. Sunrise will finally be 6:54 AM tomorrow, but that's still later than the Winter Solstice.

 

Looks cloudy this morning so hopefully we can get more than just some sprinkles or drizzle from it.

[Mr Marine Layer 1422]

It's another hazy morning with random low clouds. Starting to look like Beijing or Mexico City here regarding the haze.

[Reg1992 233]

It's another hazy morning with random low clouds. Starting to look like Beijing or Mexico City here regarding the haze.

 

There's been quite a bit of that these past few days.

 

[Thunder98 497]

There's been quite a bit of that these past few days.

 

1 16 20.png

 

Meanwhile in my area, the air quality has remained excellent.

 

[Reg1992 233]

Somehow got worse over the last 2 hours. 

 

[Mr Marine Layer 1422]

It's chilly out there today.

[Reg1992 233]

Low clouds and gusty winds just appeared out of nowhere here.

[Mr Marine Layer 1422]

We have had low clouds most of the day.

[Mr Marine Layer 1422]

Rain looks like it will be an overnight event.

[Reg1992 233]

Front already weakening near Point Conception on radar.

[Thunder98 497]

Now at 0.51'', overachiving even my prediction. The heaviest rain occurred during the 16:00 (4pm) hour.

 

 

[Mr Marine Layer 1422]

Looks like the front is weakening significantly on its way down here.

[Mr Marine Layer 1422]

Light rain starting to fall.

[Reg1992 233]

Not related to the current "storm", but something just occurred to me - the NOAA and NWS use 30 year averages, which they update every ten years to calculate average temperatures/precipitation for a given location. For years now I had gotten used to seeing "1981-2010 averages" on their websites and data pages, and before that I remember seeing "1971-2000 averages". Some old pages still even have "1961-1990 averages" if you can spot them. But now, or probably starting next year, we'll start seeing "1991-2020 averages" in their data.

[Reg1992 233]

Light rain started at exactly midnight here. 0.01"

[Reg1992 233]

0.07", light rain continuing even though it has all disappeared from doppler radar.

[Mr Marine Layer 1422]

The mountains are visible again.

[Thunder98 497]

Finished 0.52" yesterday, which was almost spot on from my 0.50" prediction.

[Reg1992 233]

Ended with 0.07". I guess I can't complain, but looking forward to more rain eventually.

[Omegaraptor 2393]

Meanwhile in my area, the air quality has remained excellent.

 

excellent aq.PNG

What’s going on around Mono Lake?

[Mr Marine Layer 1422]

What’s going on around Mono Lake?

Must have had something to do with the bad diarrhea I had once when I was there.

[Mr Marine Layer 1422]

Despite the much later sunsets, now a few minutes after 5 PM, there are still idiots driving around with their high beams on at 4:45 PM.

[Reg1992 233]

Lot of high clouds today. Still a slight chance of showers for Tuesday.

[Reg1992 233]

Offshore winds just picked up here, spiking temps and plummeting humidity.

[Mr Marine Layer 1422]

Thick high clouds have moved in but it got pretty warm before that, and still is quite warm, though it probably won't stay that way for too long.

[Reg1992 233]

Completely cloudy now. And to think it was 77F earlier. Still a dusting of snow atop Saddleback as I was driving back from L.A. this afternoon.

[Reg1992 233]

High clouds are preventing temperatures from cooling properly tonight. 8:23 PM and only a stagnant 60F wouldn't be unusual for May, but very rare in January.

[Mr Marine Layer 1422]

Low clouds moving in under the high clouds on this 1/20/2020.

[Mr Marine Layer 1422]

Lots of high clouds and no more low clouds.

[Thunder98 497]

I hope this thing makes it to the coast and brings a couple hundredths. Knowing that most of the radar returns is Virga.

 

 

[Mr Marine Layer 1422]

High clouds thinned out for some time allowing low clouds to form, but low clouds disappeared again as high clouds thickened back up.

[Reg1992 233]

Some measurable light rain in Ventura County as well as southern San Diego County near the border, and even a few heavy patches in northern Baja.

[Reg1992 233]

0.04" here, rain started out of nowhere 20 minutes ago.

[Mr Marine Layer 1422]

Looks like we had some measurable rain from this "storm".