California Weather/ Climate

[Guest happ]

I returned from out of town to find that 0.33" had fallen with the original system on Sunday the 4th.  Then, evidently a convective shower popped up sometime on Monday the 5th and dropped an additional 0.34" in a short period of time -- mud had accumulated in my front breezeway, which happens only when it rains hard.

 

Didn't like coming back to 100-degree heat, but at least the plants look happy.

 

That's a respectable total for a storm where some areas did not have any rainfall or very little.  My hope is that the water content is high enough that 'santa ana' conditions will be modified.  The hills are a light cover of green that is a result of these storms since summer.

 

93 / 67

[Dan the Weatherman]

The first Santa Ana wind of the season has arrived here in Orange today. It is only a breeze, but it is certainly a hot breeze as the temperature is about 97 or 100 depending which thermometer I am looking at (both are in the shade, one on the north side of the house and the other on the east side).

[Guest happ]

El Niño now among strongest in modern history; unusually warm and unsettled conditions persist in California

 

Who cares how hot it is today?  Everyone.  Governor Brown stood looking over the LA Basin and signed legislation dealing with global warming this week. 

 

Looks like rain next week!

 

102 / 75

[Alan]

My high was one degree below your low!

[Guest happ]

Still 87 degrees at 10:25 p.m. here in Thermal Belt Land.

 

Just, ugh.

 

It stayed hot all night with some foothill station minimums over 80.  I like the talk of a "PSEUDO-MONSOONAL FLOW" setting up next week.

 

99/ 78

[Dan the Weatherman]

It stayed hot all night with some foothill station minimums over 80.  I like the talk of a "PSEUDO-MONSOONAL FLOW" setting up next week.

 

99/ 78

 

It stayed rather warm here in Orange as well with a low of 73.7. It was still very hot today with a high of 98, even though it was a few degrees cooler than yesterday when it was around 102.

 

Hopefully we get some action next week. For some reason NWS San Diego took out the chances of rain for the Orange County coastal and inland areas including the Santa Ana Mountains, but left it in almost everywhere else.

 

I am really hoping that after this potential tropical-related activity next week that the weather begins to cool down and that a more traditional fall pattern begins to show up with systems coming out of the north. Maybe if we are lucky, one of those systems could hook up with some tropical moisture from the south and give us a good dousing of rain. I am really starting to get tired of this intense heat and very warm nights that have been so prevalent since mid August.

[Guest happ]

The last time we had really decent October temps was during La Nina conditions: 

2010

Aver Hi/Lo: 75/ 60

 

Compare last year to this year

Sept

2014:  91/ 68

2015:  90/ 69

 

October last year [2014]

85/ 64

 

The big difference this year has been rain!

Sept/ Oct:

2014: 0.21

[and at the end of November: 0.68 

 

Current rainyear [jul-jun]: 2.95"

[Guest happ]

Still quite hot with rising dew points.

 

100 / 75

[Dan the Weatherman]

Another hot day here in Orange with highs in the upper 90's and a low around 72. There were a few cumulus clouds visible toward the mountains this afternoon, a sign of possible things to come later this week.

[Guest happ]

At least the worst heat has been in the basin instead of further inland; 3 consecutive triple-digit days for USC. 

 

Hoping for a return visit of last week's upper low w/ plenty of tropical rain.

 

L: 73

[Guest happ]

Thickening clouds moved in before sunset trapping all the heat.  Dew points are getting into positive heat indexes.  Looks like a very uncomfortable night.  Rain chances are looking better for this week. 

 

96 / 73

 

9PM: 88°

[ClaireAnderson]

Hoping for some rain!

[Dan the Weatherman]

Hopefully we are seeing the last of this very hot summer pattern that we have been stuck in for the last 2 months!

[Guest happ]

NWS_SD

OVERNIGHT LOW TEMPERATURES WILL SLOWLY DECREASE...BUT REMAIN ABOVE 
  AVERAGE...ESPECIALLY NEAR THE COAST WHERE SEA SURFACE TEMPERATURES 
  HAVE WARMED TO JUST BELOW THEIR WARMEST LEVELS OF THE SUMMER AND 
  EARLY FALL SEASON AND WELL ABOVE AVERAGE FOR OCTOBER. 

 

STATION/POSITION SKY/WX   TEMP    WIND        PRES    SWELL
                           AIR SEA DIR/SP/G            HT/PER/DIR
                           (F)     (DEG/KT/KT) (MB)    (FT/S/D)
TANNER BANKS   72 / 71  190/  4/  6 1017.2R   7/280/10
S CLEMENTE BASIN   75 / 76  200/  4/  4 1017.3F   5/280/11
SAN NICOLAS IS.            70                N/A     5/280/11
SO. S. ROSA ISLA           71 / 70  120/  6/  8 1016.2R   5/10
W. S. BARBARA CH        73 / 73  110/  6/  8 1016.3S   7/290/11
M. S. BARBARA CH           74 / 73   90/  8/ 10 1017.5S
S. MONICA BASIN            75 / 76  190/  8/ 10 1017.5R   3/230/13
S PEDRO CHANNEL              74                N/A     3/250/11
DANA POINT                           74                N/A     3/220/13
OCEANSIDE OFFSHR            75                N/A     3/230/13
TORREY PINES OTR              76                N/A     3/210/18
LA JOLLA 1                 80 / 72  300/  2/  3 1017.7S
MISSION BAY BUOY              75                N/A     3/200/18
SAN DIEGO BAY                 76              1018.2S
POINT LOMA SOUTH              76                N/A     5/240/13

 

[Dan the Weatherman]

It was a very warm and muggy night here in Orange last night due to the mid-level tropical moisture that came through the area yesterday and persisted well into the overnight hours. It was still 77 degrees as of 3 a.m. this morning! The nighttime low at my house was only 73, more like mid August or early September rather than October.

 

Today is sunny with a few cumulus clouds scattered about. It looks cooler than the 88 degrees that it is right now.

[Guest happ]

Looking west from Dominguez Hills I could see stratus forming off Hermosa/ Redondo this afternoon.  It is also noticeably cooler compared to yesterday at this time. 

 

92/ 78

[Guest happ]

Great cloud formations today: cirrus, altocumulus, cumulonimbus but no rain locally.  Santa Barbara up into Central Cal look to be in a more favorable position.  Dew points were extremely high [near 70°] but lower air temps were a welcomed change.  Tomorrow looks even better for rainfall and cooler temps. 

 

88 / 73

[Guest happ]

Surprised by a small cell that moved over quickly with lightning and a brief shower; bring on more rain.

[Dan the Weatherman]

Here in Orange I saw a couple flashes of lightning to the NW earlier this evening, but there hasn't been any rain at my place as of yet. It does look unstable tonight by the look of the cumulus buildups moving across the area.

[Dan the Weatherman]

I saw quite a bit of lightning to the NE and N of my location here in Orange, and even some to the east tonight. This was likely coming from the thunderstorms that were in the Inland Empire and surrounding mountain areas. I didn't hear any thunder, which meant the lightning was quite a distance away. No rain fell here, since none of the storms were over my immediate area.

[Guest happ]

I saw quite a bit of lightning to the NE and N of my location here in Orange, and even some to the east tonight. This was likely coming from the thunderstorms that were in the Inland Empire and surrounding mountain areas. I didn't hear any thunder, which meant the lightning was quite a distance away. No rain fell here, since none of the storms were over my immediate area.

 

This was a single cell rotating northward along a line of thunderstorms but rainfall wasn't impressive anywhere.  Locally, Mt Washington 0.08, Eagle Rock 0.07, Pasadena: 0.11.  Some showers in Mojave, Central Valley and south of San Francisco.

 

Dropped below 70 for the first time in week; the shower help cool the air.

 

L; 69

Rain: 0.06

Year [jul-jun]: 3.01

[Alan]

Highest totals from NWS SD region - mostly northern IE, San Bernardino Mountains around Crestline and the good ole high desert.  Had .10" myself at 130am, plenty of lighting all night long...

 

1. GILBERT ST NR SBD 0.56 1120

2. SAN BERNARDINO CO YRD 0.55 1033
3. OCOTILLO WELLS 0.52 425
4. PHELAN LANDFILL 0.50 4099
5. PIGEON PASS DAM 0.48 1700
6. PANORAMA POINT 0.44 3887
7. VICTORVILLE LANDFILL 0.36 2959
8. RIVERSIDE - MARCH ARB 0.33 1535
9. CRESTLINE RIDGE 0.32 5300
10.RECHE CANYON 0.31 1021

[Guest happ]

Highest totals from NWS SD region - mostly northern IE, San Bernardino Mountains around Crestline and the good ole high desert.  Had .10" myself at 130am, plenty of lighting all night long...

 

1. GILBERT ST NR SBD 0.56 1120

2. SAN BERNARDINO CO YRD 0.55 1033

3. OCOTILLO WELLS 0.52 425

4. PHELAN LANDFILL 0.50 4099

5. PIGEON PASS DAM 0.48 1700

6. PANORAMA POINT 0.44 3887

7. VICTORVILLE LANDFILL 0.36 2959

8. RIVERSIDE - MARCH ARB 0.33 1535

9. CRESTLINE RIDGE 0.32 5300

10.RECHE CANYON 0.31 1021

 

Cool.  And not so bad for a retread ULL .

 

Lightning was active for over an hour with distant thunder except when storm was overhead.

[Alan]

High desert going off again today - severe storms in Palmdale area and north from there, truly impressive! 4"-5" /hr rainfall rates, 60+mph winds...

[Dan the Weatherman]

I-5 has been closed near the intersection of the 138 in the Grapevine (Ft. Tejon) due to a significant mudslide.

[Guest happ]

Considering the major mudslide headaches in northern LA county, I must admit to liking this kind of October weather. Palmdale/ Lancaster up to an inch but some locales were reporting 6 inch an hour downbursts.  http://www.latimes.com/local/lanow/la-me-ln-5-freeway-remains-closed-more-thunderstorms-expected-20151016-story.html

 

Cloudy, muggy and cool

 

L: 69

DP: 66

 

Thursday: 84 / 69

[Guest happ]

Solid marine inversion produced very short thermometers:

 

LA AIRPORT                  74 /  70 /    T
LA DOWNTOWN/USC   75 /  70 /  0.00
REDONDO BEACH        75 /  70 /  0.00
SANTA MONICA PIER    73 /  70 /  0.00

PASADENA              :     75 /  69 /  0.00
SAN GABRIEL           :     75 /  70 /  0.00

BURBANK               :     78 /  71 /  0.00

DANA POINT               72 /  70 /  0.00 /
OCEANSIDE HARBOR   73 /  71 /  0.01 /
ENCINITAS                   71 /  69 /  0.07 /
SOLANA BEACH           75 /  73 /   M /  0.07 /
DEL MAR BEACH       72 /  70 /  0.04 /
MIRAMAR                  76 /  72 /  0.03 /
MONTGOMERY FIELD  73 /  70 /    T  /
SAN DIEGO                74 /  70 /    T  /
NATIONAL CITY         75 /  71 /  0.00 /
CHULA VISTA            74 /  70 /  0.04 /
IMPERIAL BEACH     76 /  71 /  0.01 /

SAN MARCOS           71 /  69 /  0.01 /
ESCONDIDO             73 /  69 /    T  /

LEMON GROVE       72 /  69 /  0.00 /


74 / 69
 

[Guest happ]

‘Incredibly Venomous’ Yellow-Bellied Sea Snake Seen in California for 1st Time in 30 Years

http://ktla.com/2015/10/16/incredibly-venomous-yellow-bellied-sea-snake-seen-in-california-for-1st-time-in-30-years/

[Dan the Weatherman]

It is nice to have some refreshingly cool weather here for a change. I believe this is the turning point and we are now headed for a more fall-like pattern and that the hot and muggy weather of the past 3 months is over. Even the temperatures for next week have been toned down with the highest temperatures forecast for inland Orange County to only be 89 or 90 as opposed to the 90's.

[Guest happ]

Same upper level low that sat off Pt Conception appears to be moving eastward.  Still some convection but mostly over San Bernardino/ Riverside counties.  Pattern looks unsettled for a while more.

 

84 / 70

[Dan the Weatherman]

Same upper level low that sat off Pt Conception appears to be moving eastward.  Still some convection but mostly over San Bernardino/ Riverside counties.  Pattern looks unsettled for a while more.

 

84 / 70

 

I just wish the coastal areas would get in on the action. It seems that almost all the action has been in the mountains and the deserts almost as if it is still summer.

[Black Hole]

I just wish the coastal areas would get in on the action. It seems that almost all the action has been in the mountains and the deserts almost as if it is still summer.

This is an unusually summer like pattern I feel, good observation there.

 

I've found it interesting, perhaps a hint of things to come, the way that these lows have been cutting off hard to the south. This has been giving you guys your wet weather. Sometimes this is bad for my area but at least so far I have been getting in on the action...hopefully this continues this winter.

[Dan the Weatherman]

This is an unusually summer like pattern I feel, good observation there.

 

I've found it interesting, perhaps a hint of things to come, the way that these lows have been cutting off hard to the south. This has been giving you guys your wet weather. Sometimes this is bad for my area but at least so far I have been getting in on the action...hopefully this continues this winter.

 

The coastal areas of Socal got quite a bit of rain in July and September, and this is the wettest summer (July-September) for my location here in Orange that I can ever remember.

[Guest happ]

Pleasantly surprised by a light shower about 40 minutes ago; chances of more rain today but probably not much accumulation.

 

I think we can be confident that 100° days are over per the historic pattern; the data going back 15 years.

 

Year - - Last Date of 100+ maximum

 

2015 - - 10/11 [so far

2014 - - 10/5

2013 - - 9/7

2012 - - 10/17

2011 - - 10/13

2010 - - 11/3 [ugh

2009 - - 9/23

2008 - - 10/1

2007 - - 9/3

2006 - - 9/5

2005 - - 9/29

2004 - - 9/5

2003 - - 10/21

2002 - - 9/23

2001 - - 9/30

2000 - - 9/17

[richard mann]

(.. cross-reference.)
 
http://theweatherforums.com/index.php/topic/933-fall-2015-colder-air-mass-movement-and-distribution-projections/?p=86740

[Dan the Weatherman]

Pleasantly surprised by a light shower about 40 minutes ago; chances of more rain today but probably not much accumulation.

 

I think we can be confident that 100° days are over per the historic pattern; the data going back 15 years.

 

Year - - Last Date of 100+ maximum

 

2015 - - 10/11 [so far

2014 - - 10/5

2013 - - 9/7

2012 - - 10/17

2011 - - 10/13

2010 - - 11/3 [ugh

2009 - - 9/23

2008 - - 10/1

2007 - - 9/3

2006 - - 9/5

2005 - - 9/29

2004 - - 9/5

2003 - - 10/21

2002 - - 9/23

2001 - - 9/30

2000 - - 9/17

 

I agree. The only way it could get to 100 now is the combination of a strong upper high and a very warm Santa Ana wind event. Even then, 90's are more likely than a 100+ reading.

[Guest happ]

I agree. The only way it could get to 100 now is the combination of a strong upper high and a very warm Santa Ana wind event. Even then, 90's are more likely than a 100+ reading.

 

Yes, I prefer 70's like today with lots of clouds and even a shower.  Very humid. 

 

79 / 69 * correction: 67°

 

0.06

 

Rainyear [jul-jun]: 3.07 

[Dan the Weatherman]

It rained lightly for a short time this morning here in Orange, but it wasn't measurable. This cool weather has been really nice compared to the extreme heat that we had last week and earlier. I have been able to get some yard work done for the first time in a while.

[Guest happ]

NWS_SD

.CLIMATE...
  SUNDAY WAS THE NINTH DAY IN A ROW WITH A LOW TEMPERATURE OF 70 OR
  GREATER AT LINDBERGH FIELD AND THE 10TH SUCH DAY SO FAR THIS
  MONTH. PRIOR TO THIS YEAR...THERE HAD NEVER BEEN MORE THAN TWO
  DAYS IN A ROW IN OCTOBER WITH A LOW TEMPERATURE OF 70 OR GREATER
  IN SAN DIEGO AND NO OCTOBER WITH MORE THAN FOUR SUCH DAYS...THAT
  BEING OCTOBER 1997 WITH FOUR LOWS OF 70 DURING THE FIRST FIVE DAYS
  OF THAT MONTH. THIS RECENT STRETCH OF WARM NIGHTS HAS BROUGHT THE
  5 WARMEST NIGHTS IN OCTOBER IN THE HISTORY OF SAN DIEGO AS WELL AS
  THE 7TH WARMEST.

 

Interestingly, the dewpoints in San Diego have fallen well into the 50's this morning.  I think some cool nights are here.

 

L: 64  
 

[Dan the Weatherman]

It was definitely cooler here in Orange last night with a low of 61.7. Lows have been in the upper 60's to low 70's the last several nights prior to last night.