2017 California/Southwest Weather Thread

[Guest happ]

Sharp temperature inversion today. A little surprised that it was slightly warmer than yesterday in spite of coastal clouds this morning.

 

86/ 61

[Guest happ]

Good chance that fairly wet conditions will occur late this week per model guidance. NWS_LA mentioned that even having a cold front in June is extremely rare but rain is unlikely down here unlike NorCal

 

[Anti Marine Layer]

San Diego had a rather low range of temperatures yesterday with a high of 67 and a low of 63.

 

NOAA satellite is down, but the Intellicast one is up. Burnoff a little faster than yesterday.

[Guest happ]

Stronger marine influence; slightly cooler today

 

83/ 63

[Anti Marine Layer]

Marine layer clouds hung around the beaches again all day today, with the clouds sitting atop the hills in the near distance at Laguna Niguel Regional Park, but it was sunny there and pleasant. June Gloom is in full bloom along the coast.

[Anti Marine Layer]

Visible satellite link (since NOAA is broken)

 

http://images.intellicast.com/WxImages/VisibleSatellite/san.jpg

[Guest happ]

San Diego and around the Columbia River were the only areas of much above normal rainfall. It is cool that California is even still getting rainfall [later in the week].

[Anti Marine Layer]

Coastal eddy is really spinning in today's satellite animation.

[Guest happ]

 

"In Praise of June Gloom, L.A.'s Most Underappreciated Weather Event" ;  http://www.laweekly.com/news/what-causes-june-gloom-and-why-its-las-best-weather-event-8279459

 

[Anti Marine Layer]

Much deeper marine layer this morning. It could even cool down the Inland Empire.

[Anti Marine Layer]

There is no logical reason for the marine layer to be so deep when heights are higher than normal for this time of year. High pressure is supposed to create shallow marine layers not deep marine layers. Maybe this is part of climate change that high pressure no longer makes shallow marine layers.

[Guest happ]

There is no logical reason for the marine layer to be so deep when heights are higher than normal for this time of year. High pressure is supposed to create shallow marine layers not deep marine layers. Maybe this is part of climate change that high pressure no longer makes shallow marine layers.

 

Strong inversion and moderate pressure gradient may have something to do with upper 90's in Palmdale and upper 60s at LAX.  Overcast skies reached inland to my area already this evening epitomizing the glory of June Gloom.

 

76/ 63

[Anti Marine Layer]

Again it could be something wrong with my body and maybe I should go to see a doctor about it, but a strong breeze at 65 F definitely has a wind chill factor, since it always feels warmer outside after the sun goes down than late in the afternoon on an overcast day as the sea breeze dies off.

 

Wind chill charts do not include 65 F on them.

[Anti Marine Layer]

Sometimes the factors that frequently help make the marine layer become more shallow can set off

mesoscale events that actually deepen the marine layer. Ridging to the north, rising geopotential heights,

and offshore flow aloft from the north serves to bring warming via subsidence aloft, which helps to

lower the inversion. At the same time the associated low level northwest flow over the outer waters (30-

60 miles offshore) jumps to 15-20 knots. This frequently generates a Catalina Eddy, which tends to

deepen the marine layer, counteract coastal warming, and make the clouds more persistent near the

coast. Even while the clouds over land are burning off, the advection of low clouds due to the eddy will

frequently keep the clouds from totally clearing near the coast. If upper level heights and thicknesses

are increasing, inland areas and areas at higher elevations see 24 hour temperature increases, while at the

same time coastal areas are seeing lower afternoon high temperatures because of a more persistent

marine layer cloud deck. Although the marine layer depth typically slopes downward to the north, and

slopes upward to the east toward the mountains, a rather strong eddy will sometimes make the depth

nearly the same everywhere.

[Dan the Weatherman]

Strong inversion and moderate pressure gradient may have something to do with upper 90's in Palmdale and upper 60s at LAX.  Overcast skies reached inland to my area already this evening epitomizing the glory of June Gloom.

 

76/ 63

 

It was overcast here in Orange almost all day, except for a tiny bit of clearing in the late afternoon. This is typical early June weather, which made for perfect conditions for doing yard work late this afternoon.

[Guest happ]

I did a google search on June Gloom to find various opinions. Like Mr Marine Layer, there are those who hate the overcast [mainly people who want sunny conditions at the beach] but move inland from the ocean and it seems many enjoy the cool cloudiness.

 

June Gloom http://www.limitlesssanfrancisco.com/blog/2016/6/8/june-gloom

 

 

[Guest happ]

Looking at heights next week

 

 

[Anti Marine Layer]

5 days straight of no sun at San Diego Airport. Let's give 'em all a big round of applause.

[Anti Marine Layer]

I did a google search on June Gloom to find various opinions. Like Mr Marine Layer, there are those who hate the overcast [mainly people who want sunny conditions at the beach] but move inland from the ocean and it seems many enjoy the cool cloudiness.

 

June Gloom http://www.limitlesssanfrancisco.com/blog/2016/6/8/june-gloom

 

It's always great when a system drops temperatures 30 degrees in the mountains and deserts but wipes out the inversion and makes the beaches warmer. That's more of a March and April thing, however.

 

Hopefully we will see some reverse clearing this weekend.

[Anti Marine Layer]

It is raining​ this morning, or a very heavy drizzle. This time of year can feel like the movie Groundhog Day. Usually a warm and sunny March and April means 6 weeks of exceptionally heavy May Gray and June Gloom.

[Guest happ]

Wonder how often this happens?

 

75/ 61

 

Yesterday

[Anti Marine Layer]

What's going on here? San Diego looks like it is clearing out, but Orange County and inland still have drizzle as of 9:30 am.

[Anti Marine Layer]

Looks like there is a chance of some better clearing by late afternoon. If so, it would be one of the rare cases where a ridge of high pressure (currently moving out) created a DEEPER marine layer.

[Anti Marine Layer]

Julian has only reached 76 F so far today as compared to 86 F two days ago. Obviously that helped to weaken the inversion enough for San Diego (yes even the beach) to get its first sunshine in 5 days.

[Anti Marine Layer]

Redding went from an afternoon high of 87 F yesterday to an afternoon high of 58 F today. The daily high temperature was 72 F at midnight, however.

[Anti Marine Layer]

Turned out to be a surprisingly sunny afternoon after another dark, misty, foggy morning. Was not expecting that at all. Still had quite a strong sea breeze to keep it from getting too warm, but at least it felt more like late spring than the middle of winter.

[Anti Marine Layer]

Not surprisingly, historical data has shown the peek of the May Gray/June Gloom season to be around nowhttp://meteora.ucsd.edu/~iacob/LongTerm2.gif

 

[Anti Marine Layer]

Marine layer still very deep, reaching far into Inland Empire again, but apparently the inversion has been weakened by the frontal passage and cooler air aloft.

 

Already some sunshine early this morning.

[Guest happ]

Marine layer still very deep, reaching far into Inland Empire again, but apparently the inversion has been weakened by the frontal passage and cooler air aloft.

 

Already some sunshine early this morning.

 

Strangely, the marine layer didn't impact much of LA county. I could feel the cooler air overnight due to absence of clouds. First minimum below 60F in 10 days.

 

L: 58

 

Thursday: 75/ 61  

[Guest happ]

Next week doesn't look too 'June Gloomish"

 

 

[Anti Marine Layer]

Nice sunny day today before the June Gloom and cool weather returns for the weekend. Then it looks to warm up for next week, at least inland.

Sea surface temperatures are near normal in the bight, but below normal offshore. Probably the persistent Catalina Eddy has brought the warmer temperatures in the bight. In fact the Eddy is supposed to draw warmer water from the south, which could be part of the reason June Gloom usually becomes less obnoxious by the end of month.

[Anti Marine Layer]

Marine layer already returning to the coast, visible behind the coastal hills, and it looked much more three dimensional than usual from the distance without the usual haze.

[Guest happ]

Stratus looks very disorganized on visible satellite but the cool ocean breeze already knocked temp down into the 60's this evening.  

 

80/ 58

[Front Ranger]

I don't understand the obsession over levels of marine layer "gloom".

 

Sun "addicts". Weird .

[Anti Marine Layer]

I don't understand the obsession over levels of marine layer "gloom".

Sun "addicts". Weird s**t.

It can be annoying because we can get 80s in January and mid to upper 60s in June, when the weather is supposed to be getting warmer. You never know when or if it will burn off, and makes a difference between a cold day and a hot day. For example the unexpected burnoff late Thursday afternoon caused Foothill Ranch to go from 60 F at noon to 77 F by 4 PM. So you never know what to wear because it is so hard to predict if it will burn off or not. May and June are the cloudiest months of the year near the coast.

 

Even on an average winter day, where it is usually sunny to partly cloudy with highs in the upper 60s, the June weather can feel colder.

 

Gloomy weather should happen during the winter, not during the early summer.

[Guest happ]

I don't understand the obsession over levels of marine layer "gloom".

 

Sun "addicts". Weird s**t.

 

Give us a break. What else is there to discuss here when it doesn't rain for months?

 

But it does rain on occasion even in June

NWS_SD

[Anti Marine Layer]

Seeing more high clouds than low clouds now, as the marine has mostly broken up.

[Guest happ]

I'm enjoying the clouds, too [stratocumulus pushed up against the mountains].

 

70°

[Anti Marine Layer]

Deep marine layer already fogging up Mt Wilson Observatory while we have a reverse clearing pattern here with some clouds over the Santa Ana Mountains.

[Guest happ]

Cool cloudy morning though clearing is occurring now.

 

Saturday: 72/ 61