2017 California/Southwest Weather Thread

[Guest happ]

0.30" fell here in Orange with this last storm. This is more rain than I received in March and April combined! It also fulfilled my prediction of the possibility of another storm after that strong Santa Ana wind we had about a week or two ago.

 

It is sad that my 0.26 was the most one-day rainfall going back to Feb 17th. But the rain total is now 20.36; more than average. Hope we manage to record more rain before June 30. Wonder what the monsoon will bring? The Pacific is warmer than normal between Hawaii and Mexico. Noticed how much warmer it is this morning compared to the readings when the upper low was overhead this past weekend.

 

L: 58

[Guest happ]

Overall, it has been a great rain year for the Southwest

 

[Dan the Weatherman]

It is sad that my 0.26 was the most one-day rainfall going back to Feb 17th. But the rain total is now 20.36; more than average. Hope we manage to record more rain before June 30. Wonder what the monsoon will bring? The Pacific is warmer than normal between Hawaii and Mexico. Noticed how much warmer it is this morning compared to the readings when the upper low was overhead this past weekend.

 

L: 58

I hope we get some more rain before the end of the season, too, to make up for the dry March / April we went through. With the SSTs warmer than normal in the subtropical Pacific, it will be interesting to see what type of monsoon pattern we will have or if any remnants of eastern Pacific tropical systems could affect our area like they did in the summer of 2015.

[Anti Marine Layer]

Reverse clearing pattern here today with a very unusual low cloud deck in the Coachella Valley.

[Guest happ]

Photo courtesy of NWS_SD of cloud cover yesterday; more of the same today. If today's maximum stays below 70F it will be 4 days in the 60's so far this month; more than April and March combined. Long range looks to stay well below average w/ the possibility of more rain again early next week. 

 

Edit: March had 4 days in 60's

[Anti Marine Layer]

It is becoming a pattern here to have winter return in May after warm March and April weather. I hope some of you have a good chance to have a nice picnic or long walk in the gloomy, cool, damp weather that makes you so happy.

[Guest happ]

It is becoming a pattern here to have winter return in May after warm March and April weather. I hope some of you have a good chance to have a nice picnic or long walk in the gloomy, cool, damp weather that makes you so happy.

 

I, in-fact, did take a walk yesterday and found it quite comfortable to be outside.  It is interesting that the current stationary omega block may be responsible for a very cool May for the 3rd consecutive year. 

[Jesse]

It is becoming a pattern here to have winter return in May after warm March and April weather. I hope some of you have a good chance to have a nice picnic or long walk in the gloomy, cool, damp weather that makes you so happy.

There is a reason why Southern California has a reputation for being one of the gloomiest climates in the country.

[Guest happ]

Early leafing shows remarkable warmth over the Midwest/ Eastern US. I am surprised that SoCal is later than normal. The jacarandas are in flower.

[Anti Marine Layer]

There is a reason why Southern California has a reputation for being one of the gloomiest climates in the country.

It does for two months of the year. Surprisingly it often goes from cool to hot by late June or early July thanks to the Four Corners ridge. Otherwise we would be like San Fransisco all summer long.

[Anti Marine Layer]

California coastal weather is quite ridiculous as it can be over 90 F in November or February with a strong offshore flow event or below 70 F in June or even early July with a deep marine layer. There is no logic between the temperatures and the sun angle.

 

As for climate change I am not so sure about global warming, but it will mean stronger troughs and ridges than ever before and more blocking patterns that last for weeks or even months.

[Guest happ]

First sunny morning in several days. Next week should go back to cloudiness/ cool.

 

Wednesday: 66/ 59

[Anti Marine Layer]

End of the week looks to have a few nice (or not nice, depending on your preference of sky color and temperature) days. Some people have SAD and some people have reverse SAD. Others just enjoy a variety of weather and are hoping for more rain to add to our seasonal totals.

 

I would think the people who have T-shirts and shorts on an overcast 60 degree, breezy day and don't feel cold would have a hard time tolerating much above 72 and sunny.

 

As for me, 72 degrees in air conditioning makes me freeze in summer clothes, but 68 on a sunny day with little breeze can feel nice and warm.

 

Still very hazy today, but a lot more sunshine.

[Guest happ]

End of the week looks to have a few nice (or not nice, depending on your preference of sky color and temperature) days. Some people have SAD and some people have reverse SAD. Others just enjoy a variety of weather and are hoping for more rain to add to our seasonal totals.

 

I would think the people who have T-shirts and shorts on an overcast 60 degree, breezy day and don't feel cold would have a hard time tolerating much above 72 and sunny.

 

As for me, 72 degrees in air conditioning makes me freeze in summer clothes, but 68 on a sunny day with little breeze can feel nice and warm.

 

Still very hazy today, but a lot more sunshine.

 

Who can complain w/ this forecast?

 

"NWS_LA

     Fri      Sat      Sun      Mon      Tue      Wed      Thu     

May 12 May 13  May14 May 15  May 16 May 17 May 18  

 

...Coastal Areas...

 

    Downtown Los Angeles

    PTCLDY   PTCLDY   PTCLDY   PTCLDY   PTCLDY   PTCLDY   PTCLDY  

    56/72        57/76       57/72         57/72        58/72        57/72        57/72   

     00/00    00/00    00/00    10/10    10/10    10/10    10/00  

 

[Anti Marine Layer]

Paso Robles had a roller coaster ride on Tuesday from 85 F at 1:53 PM to 64 F at 4:53 PM with a lot of wind. A hot day becomes a chilly day with no thunderstorms or frontal systems. They do have one of the largest day to night temperature swings in the country.

[Guest happ]

Thursday: 75/ 56

[Anti Marine Layer]

More typical night/morning low cloud pattern today. Great thing about California on a typical marine layer day where clouds pull back to the beaches is that if you love the cool and gray, you can always drive to the beach, and if you love the sunshine and warmth you can drive inland.

 

I remember a school beach party as a kid where it was cold and cloudy and I still got a sunburn. I also remember doing swimming lessons in Long Beach as a kid where every day was cold and cloudy until about noon when we were driving home.

[Guest happ]

Not often that low clouds form/ persist in Central valley this time of year/ time of day

 

[Anti Marine Layer]

Today was one of those days that the marine layer was deeper than the maximum morning extent of the clouds would indicate.

[Anti Marine Layer]

Could be a rather interesting marine layer pattern tonight as LOX says northerly winds will clear out Los Angeles County while SGX says clouds will push inland to the mountains.

[Anti Marine Layer]

Strange high temperatures

Thursday: Fullerton was 78 F, Foothill Ranch was 75 F

Friday: Fullerton was 72 F, Foothill Ranch was 76 F

 

Could be return of the eddy, which makes a more southerly sea breeze, which passes over less land to reach Fullerton than a Westerly sea breeze.

[richard mann]

(.. cross-reference.)
 
http://theweatherforums.com/index.php/topic/1546-spring-2017-colder-air-mass-movement-and-distribution-projections/?p=239050

[Guest happ]

Strange high temperatures

Thursday: Fullerton was 78 F, Foothill Ranch was 75 F

Friday: Fullerton was 72 F, Foothill Ranch was 76 F

 

Could be return of the eddy, which makes a more southerly sea breeze, which passes over less land to reach Fullerton than a Westerly sea breeze.

 

Anemic marine layer/ stratocumulus this morning. Catalina eddy tonight should help form a much stronger onshore flow for Mother's day. Models suggest next week's ULL moving too far east into Nevada to produce rain for SoCal unlike last weekend.

 

In the meantime and continuing for at least another month or more, we likely will only have the nuances of the marine layer to discuss. A southerly wind can push the coastal clouds northeast into the San Gabriel valley; that is when Long Beach is much cooler than USC. A westerly wind/ stratus push can produce the opposite with downtown cooler than Long Beach/ Los Alamitos bay due to downsloping off Palos Verdes hills.

 

Friday: 77/ 56   

[Anti Marine Layer]

Marine layer is very strong all the way down to the end of Baja Peninsula. In fact, Cabo San Lucas has forecast highs of mid 70s over the next week. Their normal high for this time of year is around 87 F. Only 74 F forecast for Monday.

[Guest happ]

Pleasant day: 75/ 55

[Guest happ]

Speaking of stratus; where is it?  Not too uncommon for the low clouds to migrate inland after sunrise but I can't make out the marine layer on early morning satellite images north of Long Beach.  A deeper trough should result in stratus tomorrow morning and maybe drizzle.

 

Edit: stratocumulus 2000' @ 7:50am 

[Anti Marine Layer]

Weather is having a hard time making up its mind whether it will be sunny or cloudy this morning. The May sun angle is intense when the sun comes out and then when the clouds blow by and the breeze kicks up, it begins to feel chilly.

[Anti Marine Layer]

Sunny but very windy here right now. Sort of like a reverse Santa Ana. Nice south wind being generated by the coastal eddy.

[Jesse]

Sunny but very windy here right now. Sort of like a reverse Santa Ana. Nice south wind being generated by the coastal eddy.

Glad to hear it's working out today. Sunshine in Southern California is a rare treat.

[Anti Marine Layer]

Clouds are already fogging up Mt Wilson Observatory. Otherwise it was a very windy day with the intense May sun angle making it feel warmer than the actual temperature.

[Front Ranger]

Clouds are already fogging up Mt Wilson Observatory. Otherwise it was a very windy day with the intense May sun angle making it feel warmer than the actual temperature.

I've never really noticed sun angle making it feel warmer.

[Anti Marine Layer]

Just got a few sprinkles despite there being some breaks in the clouds.

[Anti Marine Layer]

It was raining hard enough to hear it from the closed window. This is no marine layer drizzle.

[Guest happ]

I was surprised to see reports of rain in Santa Ana/ Irvine this past hour esp since it is dry/ partly cloudy just about everywhere else in SoCal. 

 

Sunday: 72/ 55

[Anti Marine Layer]

0.02" for Lake Forest. Drought buster.

 

I'm heading up to Palm Springs for the week. Only mid 70s expected there today.

[Guest happ]

0.02" for Lake Forest. Drought buster.

 

I'm heading up to Palm Springs for the week. Only mid 70s expected there today.

 

Showers reported in Duarte; just sprinkles here but windy/ wintry. Weren't you in Coachella valley recently?

[Anti Marine Layer]

I was in Coachella Valley last June. The marine layer clouds are leaking over the mountains, but do not last long once they hit the dry desert air.

[Anti Marine Layer]

 

Here you can see some of the stratocumulus clouds from the marine layer making their way into the desert. It is very windy.

[Guest happ]

Cold upper low still in charge but less clouds/ rain likely today. Some fairly impressive showers yesterday mainly inland in places [saugus: 0.26 / Pomona: 0.10] and cold temps [Pasadena: 61F].

 

Monday: 63/ 55

[Anti Marine Layer]

After a few places having the coldest May day on record with last week's storm, this one only tied 3 record low maximum temperatures.