2017 California/Southwest Weather Thread

[Anti Marine Layer]

96 in Fullerton Airport. However with the low sun angle and dry air, it doesn't feel that hot.

[Guest happ]

2PM

MIRAMAR MCAS   SUNNY     99  39  12 W6        29.98F                

 

This is in city limits of San Diego

[Anti Marine Layer]

2:30 PM in late November is like 5:45 PM in the middle of June. However, on a hot day like today, there is less time to cool down between noon and sunset.

[Guest happ]

A few 100F maximums [ie. Anaheim] and 90's widespread; probably more of the same tomorrow.

 

96/ 70

[wx_statman]

Some impressive records today. The 96 in Long Beach just missed the late-season record, 97 on 11/25/1977.

[Anti Marine Layer]

Where else in the world is it dark at 5:30 PM after a day with temperatures in the upper 90s?

[Guest happ]

Similar to last night, winds are picking up at bit but dew points are safely in the 30's or higher which surprised me. Explains why there have not been Red Flag warnings during this heatwave. Where's the moisture coming from?

[Guest happ]

News coverage showed fairly large number of swimmers in 65F ocean water but warnings of sting rays at Huntington Beach. 

@HBSURFCITYUSA

[Dan the Weatherman]

I can't believe how hot it got in Socal today. Some places reached temperatures that I thought were not possible this time of year with the sun angle and day length being limiting factors. It takes a "perfect storm" of conditions to produce this level of heat this late in the year. A run of the mill Santa Ana event coupled with a run of the mill upper level high simply does not do the trick.

 

Obviously there is something else at work that is injecting extra heat in the weather patterns down here as of late. Today's event is the second very anomalous hot spell we have had since the beginning of October. The first event was a late October Santa Ana wind in which I experienced a low in the upper 80's here in Orange! I have NEVER seen lows this hot even in the worst September heat waves and the muggiest of August nights in my area.

 

We are never going to get into a more winter-like pattern as long as we keep having this highly abnormal level of heat around here!

[Guest happ]

It is so hot tonight that sleep is uncomfortable especially when the temp hasn't fallen below 76F & San Rafael Hills is 81°. Found this quote on Twitter from Brian Brettschneider

 

"There are only 5 official instances of 100°F temps so late in the year (pre-2017). Granite Reef Dam, AZ (102°F on 11/30/24), La mesa, CA (12/8/38), Irvine Ranch, CA (11/23/33) and Camp Pendleton, CA (12/6-7/2006) all with 100°F. @NWSLosAngeles @NWSSanDiego"

[Anti Marine Layer]

It is so hot tonight that sleep is uncomfortable especially when the temp hasn't fallen below 76F & San Rafael Hills is 81°. Found this quote on Twitter from Brian Brettschneider

 

"There are only 5 official instances of 100°F temps so late in the year (pre-2017). Granite Reef Dam, AZ (102°F on 11/30/24), La mesa, CA (12/8/38), Irvine Ranch, CA (11/23/33) and Camp Pendleton, CA (12/6-7/2006) all with 100°F. @NWSLosAngeles @NWSSanDiego"

76 F should not be uncomfortable with almost no humidity. I find it crazy that people say the best temperatures for sleep indoors are between 62 and 70. I would be freezing on the lower end of that. I have noticed that many hotels provide heavy blankets in middle of the summer in the hottest climates. That is because so many people love to set their AC to the 60s when it is over 100 outside. When I was in Miami a few years ago at the end of May, the airport was like one humongous refrigerator. I had to have long pants and sweatshirt waiting for the next plane and was still cold. Outside it was in the 90s.

[Guest happ]

76 F should not be uncomfortable with almost no humidity. I find it crazy that people say the best temperatures for sleep indoors are between 62 and 70. I would be freezing on the lower end of that. I have noticed that many hotels provide heavy blankets in middle of the summer in the hottest climates. That is because so many people love to set their AC to the 60s when it is over 100 outside. When I was in Miami a few years ago at the end of May, the airport was like one humongous refrigerator. I had to have long pants and sweatshirt waiting for the next plane and was still cold. Outside it was in the 90s.

 

Due points are pushing 50°. Of-course, it is not uncomfortable compared to summer humidity. I don't like waking up on a sweaty pillow esp in late November. All the house windows were open to allow cross circulation but fans were also necessary. I avoid using AC even though other family members seem to be totally addicted. Just the fact that we need fans all night is depressing on Thanksgiving.  

 

L: 73

[Anti Marine Layer]

Due points are pushing 50°. Of-course, it is not uncomfortable compared to summer humidity. I don't like waking up on a sweaty pillow esp in late November. All the house windows were open to allow cross circulation but fans were also necessary. I avoid using AC even though other family members seem to be totally addicted. Just the fact that we need fans all night is depressing on Thanksgiving.  

 

L: 73

Well, it all depends on whether you like warm weather or cool weather and how quickly your house heats up on a warm day. I am not in the hills, but a crowded area in Lake Forest, so we rarely get east winds that last through the night. That allowed it to drop into the mid 50s Tuesday night and about 60 last night. Also my house is very slow to warm up this time of year because my small backyard is shaded by tall Cypress trees from the schoolyard on the other side and the sun does not peak over until about 9:30 AM this time of year. We're also a one-story house right next to a 2 story house, so the south side of my house is completely shaded from about November to February. The south is where the sun tends to be this time of year. My house warmed up to 77 yesterday and dropped to 74 this morning, and that actually felt a little bit cool given the low humidity.

[Guest happ]

Most people complain about the heat on social media/ blogs. In-fact, MrMarineLayer, you are the only person I know of who likes hot weather. Take any TV channel News; universally the newscasters state weariness w/ a summer that won't end and hardly a drop of rainfall unless you live in an extremely fortunate location that received monsoon moisture.  There's ritual that gets skewed-up; switching from sheets-only [summer/ early-mid Fall] to blanket/ PJ's and turning the furnace on in the morning is what one expects going into December. Plus negative departures earlier this month have been replaced with  warmer than average again.     

[Thunder98]

Similar to last night, winds are picking up at bit but dew points are safely in the 30's or higher which surprised me. Explains why there have not been Red Flag warnings during this heatwave. Where's the moisture coming from?

 

The Dew Point went up to as high as 59F yesterday. The high was 89F Wednesday

 

https://english.wunderground.com/history/airport/KSMX/2017/11/22/DailyHistory.html

[Guest happ]

The Dew Point went up to as high as 59F yesterday. The high was 89F Wednesday

 

https://english.wunderground.com/history/airport/KSMX/2017/11/22/DailyHistory.html

 

Any idea why dew points are relatively high during strong ridging/ light offshore flow?

[Anti Marine Layer]

Denver is also having a heat wave with an expected high of 72 F.

[Anti Marine Layer]

It may have been uncomfortably hot today with Downtown L.A. recording its hottest Thanksgiving ever and San Diego tying theirs, but now it is quite comfortable out there and I still would take the heat over having to be in the Macy's parade with almost no clothes in near freezing temperatures like some of the dancers there.

 

Walmart campers had to endure heat instead of cold here.

[Guest happ]

Looks like Lake Forest was just a hot as here.

 

LAKE FOREST        970 :   93 /  72 /  0.00 /

 

93/ 73
 

[Anti Marine Layer]

Still hot and dry here while the PNW rivers are flooding.

[Guest happ]

Always assumed the NWS Lake Forest station was at the former El Toro Marine Air Station but elevation is a little over 300'. Some warm minimums at over 1000'. The reality of micro climates in California can be observed on WU stations. I check my readings w/ sites under a mile away. My hygrometer was way off on 2 consecutive nights.

[Guest happ]

NWS_SF

A hefty plume of precipitable water with values approaching 1.50" per
  recent GFS and WRF model output would be at seasonal max values on
  all Oakland soundings from 1948 to 2014 if it reaches here, which is
  what the WRF is forecasting. There`s pretty good agreement between
  the GFS and NAM IVT forecasts indicating a moderate to borderline
  strong atmospheric river (AR) Saturday night into Sunday, with 
  possible lingering AR effects Sunday into Monday morning over East
  and South Bay areas. IVT values 500-600 kg/m/s rise to 700-800 kg/m/s
  over the Bay Area Saturday evening into Sunday morning. Similar 
  values then overspread the Santa Cruz Mountains early Sunday morning
  to early-mid Sunday afternoon. All of this progresses to the Big Sur
  coast, but will be moving faster Sunday due to an upstream kicker low
  pressure trough in strengthening westerlies. 
 

[Anti Marine Layer]

Laguna Beach is a madhouse, like on a summer day.

[Anti Marine Layer]

Did not bother to find parking at Laguna Beach as it was more like Labor Day weekend than Black Friday, but did find something at Corona Del Mar. The water was not too cold, but they don't allow dogs on the beach until 4:30 PM, which is stupid because that is around sunset this time of year.

[Guest happ]

Satellite shows stratus moving up the coastline from Baja signaling the end of the ridge tomorrow. Rain is in the forecast by Monday but I'm a skeptic.

 

Friday: 88/ 67

[Black Hole]

How was winter 2011/12 for you guys?

[Guest happ]

How was winter 2011/12 for you guys?

 

Following the wonderful Nina of 2010/11 it under performed. Rain year was only 11.90 here.  

[Anti Marine Layer]

From NWS San Diego forecast discussion.

 

  Later in the week...forecaster confidence fades further as models    suggest the development of a temporary block along the West Coast.    The block allows a cut-off low to form well offshore of San Diego.    The 06Z GFS and 00Z ECMWF operational runs bring the low over SoCal    next weekend with sufficient moisture and strength for widespread    precipitation...perhaps the first of the season?

 

Sound familiar? Like that first storm of the season we were supposed to get early November?

[Guest happ]

Fog coming ashore in San Clemente this afternoon.

 

@brunorodriguezp

 

[Anti Marine Layer]

Much cooler at the coast today where the fog hung around all day. Still a pretty hot day inland.

 

Maybe some rain on Monday, but we will see if San Diego can get anything measurable.

[richard mann]

(.. cross-reference.) 

 

http://theweatherforums.com/index.php/topic/1648-fall-2017-colder-air-mass-movement-and-distribution-projections/?p=275164

[Anti Marine Layer]

The dense fog is here this morning, ending the offshore flow.

[Guest happ]

Fog has lifted but it was a nice change. I woke up freezing around 4AM, closed the windows/ doors & turned furnace on for a while. 

 

Saturday: 86/ 63

[Anti Marine Layer]

Fog only allowed the temperature to drop to 58 F last night in Fullerton. Areas in the hills probably had a cooler night while areas near the coast had a warmer night. It is slowly burning off here and probably will keep the beaches socked in all day again today.

[Anti Marine Layer]

We are coming to that time of year where solar noon moves forward by at least 20 seconds each day. Around Winter Solstice it moves forward by about 30 seconds a day. Loss of daylight in the morning from yesterday is 55 seconds, but loss of daylight in the evening is only 15 seconds. Exact date of earliest sunset depends on your latitude, but for most mid-latitudes, it's about 2 weeks before the Winter Solstice.

 

 

 

[Thunder98]

This fall is so dry! Even Fall 2013 had more rain than this year.

[Anti Marine Layer]

High clouds are approaching from the northwest while low clouds are moving ashore in some areas. It was much cooler today, although still nice and warm. High clouds could make a nice sunset in areas where the low clouds have not already blocked them out.

[Black Hole]

Following the wonderful Nina of 2010/11 it under performed. Rain year was only 11.90 here.  

The pattern lately has reminded me of that year. Lots of splitting troughs. Those can be good for you guys if they are in the right spot but I guess they were not in that winter.

[Guest happ]

Per the static pattern, the front over Central Cal is falling apart; any rain down here should be very light. The ridge over Baja is doing damage to the prospects for rain but at least the position of the high circulates moist Pacific air into SoCal; thus the relatively high dew points during the past heatwave. 

 

77/ 57

[Anti Marine Layer]

There was a southerly surge yesterday as indicated by temperatures reaching 80 around noon at LAX and then dropping into the 60s by early afternoon. San Diego was in the low 60s all day yesterday. Sea surface temperatures are still in the mid 60s.