Friday, November 30, 2007

Cold/Blusterly Saturday for the southland

(Late fall rains in the desert - Friday, Nov. 30, 2007)

Saturday...
Partly cloudy skies and colder than normal temperatures for all of southern California. Breezy to windy conditions can be expected also. The strongest wind gusts will occur over the mountains and high deserts where gusts to around 40 mph are a possibility.
Additionally... there will be a few showers from time-to-time over the far southern and eastern portions of SoCal and over all mountain locations of the southland through out the day. Most areas are expected to only a Trace to 0.02" by late in the day.
The snow levels will range from 4,500' over the mountains over the San Gabriels and Santa Ynez's to around 5,000' from the San Bernardino range southward. Little or no accumulation is expected.

Thursday, November 29, 2007

Wet weather for the last day of the work week


*Updated: 11:50am/pst, Friday, Nov. 30th, 2007*

So far (as of late Friday morning)...anywhere from one tenth of an inch to half an inch of rain has fallen across much of SoCal...with locally higher amounts along some foothills and mountain slopes

For the afternoon hours Friday... look for rain or rain showers continuing. Don't be too surprise to hear some thunder...especially in San Diego county.

Then tonight... the steady rain will become more showery...then begin to diminish in areal coverage through the overnight hours.

A few light showers may linger into the morning hours Saturday over the far south and eastern portions of southern California.


Looking ahead...
High pressure is expected to build in next week. This will likely produce a weak off shore flow and warmer temperatures.

Wednesday, November 28, 2007

A chance of showers late in the week/into the weekend?

(Along the PCH - Just south of Pt. Mugu)

A low pressure will bring increasing cloudiness to the southland along with cooler temperatures and a chance of light showers (mostly under 0.10") to SoCal by late Friday and continuing into Saturday.

High pressure will bring fair and warmer conditions by early next week.


Tuesday, November 27, 2007

Short-Lived Santa Ana Wind Event

(Cajon Pass)

Updated at: 3:45am/pst, Wednesday, Nov. 28th, 2007

A "short-lived" off shore wind event Wednesday morning.

This is a result of a high pressure ridge over the Great Basin region. The high is forecast to move off the east...allowing for the winds diminish by mid afternoon on Wednesday.

The strongest wind gusts will occure over through and below the passes and canyons of Ventura...LA...Orange and San Bernardino counties.

In these areas... gusts may exceed 40 mph at times during the morning hours on Wednesday.


Monday, November 26, 2007

Weak off shore wind event Tuesday night and Wednesday

(Sunrise - November 25th, 2007)

Models are indicating another "weak" off shore wind event Tuesday night and Wednesday.

The winds will be the strongest through and just below passes and canyons. But...should be lighter than the winds experienced across the southland on Saturday.

Along with winds... temperatures will warm a bit over the next couple of days... mainly in the 70s for most coastal and valley locations.

Looking ahead...
A weather system will bring more clouds and a few showers to the southland late this week.


Sunday, November 25, 2007

Developing onshore flow!

(Sunrise - Sunday, November 25th, 2007)

A developing onshore flow will bring a return to the marine layer to much of the coastal plain...possibly spreading into some coastal valley locations during the night and morning hours through Tuesday.

Meanwhile... other than night and morning low clouds and fog... SoCal can expect to see periods of high cloudiness for much of the week.


Saturday, November 24, 2007

Weakening offshore flow...rest of the weekend

(Santa Monica Pier)

The offshore flow will show a definate weakening trend for the remainder of the long holiday weekend.

Look for increasing high cloudiness on Sunday...otherwise fair weather can be expected.

Due to the low humidities... Red Flag Warning continue through much of Sunday.

Winds will be much lower Sunday than what much of SoCal experienced on Saturday.


Friday, November 23, 2007

Strong winds will blow over much of the southland

(Pismo Beach - August 2001)
[Photo Technique: Scanned Color photo layered on Canvas/brick background]

A strong/cold low pressure will drop southward into the 4 cornets region on Saturday.

This will resul in strong/gusty winds over much of the region through at least Saturday afternoon.

The strongest gust will likely occur through and below passes and canyons. Gusts may reach or even exceed 70 mph at times in some locations late Friday night through early Saturday afternoon.

Unlike most off shore wind events... temperatures with this particular wind episode will be below the seasonal normals.


Thursday, November 22, 2007

Moderate off shore flow to develop over the southland

Photo Details...
Location: San Luis Bay
Technique: BW scanned negative...layered on water background

A moderate off shore wind event is on tap for late Friday through Saturday.

The strongest winds will occur in the unsual locations... through and below passes and canyons.

In some locations... gusts will likely exceed 55 mph in some spots.

Temperatures with this flow will not change much... remaining below normal for the most part.

Looking ahead to next week...
Big changes (possibly!)... a cold trough of low pressure may bring a chance of precipitation to the southland by mid to late week?



Wednesday, November 21, 2007

Outlook for Thanksgiving Day

(Cajon Pass - 15 Freeway)
[Photo Technique: BW photo overlayed on Canvas Weave background]
***Updated at: 4:36am/pst, Thanksgiving Day, Nov. 22nd, 2007***
Mostly sunny skies are expected across southern California on Turkey Day with continued below normal temperatures.
There will be morning low clouds and fog along the coastal plain and in most valley locations.
Generally light and variable winds are expected on Thanksgiving Day... then an increase in the winds are expected for Friday into Saturday as an off shore flow develops across the southland.

HAPPY THANKSGIVING Southern California!!!

Tuesday, November 20, 2007

Gloom for some and winds for others rest of the week

(Downtown LA - 10/110 FWY Interchange)
[Technique: Color photo scanned BW then layer on wavy/glass background]
For the remainder of the Thanksgiving week...
Look for night and morning low clouds and fog along portions of the coastal plain...spreading into some valley locations... otherwise mostly sunny skies and continued below normal temperatures.
The winds will continue light and variable through Thanksgiving...then increasing winds are expected late Thursday night through the weekend.
The strongest winds will occur in the usual locations... through and just below the canyons and passes.

Monday, November 19, 2007

Another day of gloom and then...


(Century City... as viewed from the 10 FWY)
[Technique: Color Negative...scanned in BW]

The southland will experience one more day of gloom on Tuesday... then an onshore flow will develop Wednesday and gradually strengthen by week's end and into the weekend.
Some models are suggesting a light to moderate Santa Ana wind event this weekend (Friday night through Sunday).
The strongest winds will likely occur through and just below the passes and canyons.
Temperatures with the Santa Ana wind event will be unusually cool for this type of weather event.

Sunday, November 18, 2007

Gloom, cool temperatures and winds this week

The stubborn marine layer will linger through Tuesday night...with only partial afternoon clearing at the coast.


Temperatures will be on a downward trend the next few days.

Later in the week... breezy to locally windy conditions develop...mainly through and below the passes and canyons with continued below normal temperatures.

Looking ahead to the new week

Through Wednesday...
An onshore flow will bring night and morning low clouds and fog to the coastal plain and valleys. Along with marine layer will be a cooling trend in the temperatures across the southland.


Mid to late week (including Thanksgiving Day)...
Breezy to locally windy conditions will develop Wednesday and continue through most of the Holiday weekend...mainly through and below the passes and canyons.


Temperatures will remain below the seasonal normals.

Friday, November 16, 2007

Off shore flow by next Tuesday

A weak to moderate off shore wind even is in store for the period Tuesday through Thursday a high pressure system develops over the intermountain west.

This potentially larger off shore event is possible Friday and Saturday...

So...Stay Tuned!!!

Thursday, November 15, 2007

Strong off shore wind event possibly next week

Models still predicting a potentiall strong off shore wind event next Tuesday through Thursday (Thanksgiving).

High pressure is forecast to build over the interior portions of the western U.S. next...resulting in a strong off shore flow over the southland.

The strongest winds will likely occur through and below passes and canyons...with some potentially damaging gusts just below the passes and canyons.

The difference with the off shore flow event from the previous ones....will be the temperatures...as the temperatures will actually be on the cool side.

Wednesday, November 14, 2007

Cooler temperatures late in the week/Santa Ana's next week?

(Volleyball at Sunset --Hermosa Beach)

A downward trend in temperatures late this week/weekend...as a weak onshore flow develops.

Look for a deepening marine layer Friday and over the weekend also.

Next week...
A potentially major Santa Ana wind event is on tap by Tuesday and Wednesday of next week as an off shore flow will likely strengthen over the southland.


Tuesday, November 13, 2007

Onshore flow to return late in the week and over the weekend

Weakening off shore flow will keep warm and sunny weather over the southland through mid week.
An onshore flow will return on Thursday and continue through the weekend.
This will result in a cooler and more gloomy weather pattern.

Monday, November 12, 2007

Seasonal weather expected for SoCal

(Sunset - November 11th, 2007)

An upper level low pressure system (currently off the northern Baja coast) will weakend and drift southward through mid week.

Meanwhile... the southland will see seasonal temperatures with a slow warming trend through Wednesday... then slow cooling is expected by next weekend.

A return to the "gloom" is expected during the latter half of the week as a weak onshore flow returns to the southland.

Variety of weather across the southland to begin the new week

(Panorama view of a desert sunset)

A little something for everybody on Monday.

1): An exiting cold front will bring isolated showers to San Diego county during the morning hours.
Only light amounts (Trace to 0.02") excepted.

2): Gusty winds (gusts to around 40 mph) likely during the morning hours over the coastal valleys of Ventura county and the mountains of Los Angeles and Ventura counties.

3): Areas of dense fog with visibilities under one quarter of a mile during the morning hours over the coastal and most valley sections of Los Angeles, Ventura and Santa Barbara counties.

Saturday, November 10, 2007

Gloomy/cold Veteran's Day

***Updated: 4:17pm/pst, Sunday, November 11th, 2007***

A weak surface cold front will bring a small chance of showers to the southland through Sunday evening...then diminish.

A few light showers may linger into the late night hours over the far south and eastern portions of SoCal.

An off shore following the frontal passage will bring occasional gusty winds to the passes and canyons during the early part of the week.

Friday, November 09, 2007

Santa Ana wind event late in the weekend.

(Sunset - November 8th, 2007)

Strong northerly winds will develop across Santa Barbara county during Sunday...reaching into the mountain areas of Ventura and Los Angeles counties late in the day.

The low level flow will than transition into the northeast flow...allowing for a fairly strong off shore flow over the southland beginning either late Sunday night or early Monday morning... this flow will likely continue through at least mid-week.


Thursday, November 08, 2007

Marine layer to increase through Saturday

(Hermosa Beach)
B&W photo/canvas layer blend
The gloom will likely linger through the afternoon hours along many of the beaches.
A Cut Off low pressure apx. 300 miles west of Pt. Conception will continue to increase the marine layer through Saturday.
Look for extensive low clouds and fog...extending far inland as the lower mountain slopes and some of the lower passes.
There will also will be local areas of drizzle during the late night and morning hours.
The gloom will linger along many of the beaches through the afternoon hours both Friday and Saturday.

Wednesday, November 07, 2007

Deepening marine layer for the rest of the week into the weekend

A strengthening onshore flow will continue to deepen the marine layer over the southland for the remainder of the week and into the weekend.

Look for night and morning low clouds and fog...locally dense at times along the possibility of local drizzle Friday and Saturday mornings.

With the strenghtneing onshore flow... temperatures will remain below normal through Saturday.

Tuesday, November 06, 2007

Stay out of the water!

(Manhattan Beach)

Above normal surf and high risk of rip currents will continue along the southland beaches through mid week.

This is due to a high swell generated by a storm in the southern hemisphere last week.

The south/southwest facing beaches will be the most prone to the above mentioned conditions...especially Ventura and Los Angeles county beaches.


Monday, November 05, 2007

Above normal swells to effect the coast.

(La Jolla Shores)

A large south to southwest swell generated from a storm system in the southern Hemisphere will effect the southern California Tuesday and Wednesday.

Along with large swell will come the potential rip currents.

It is strongly advised that surfers and swimmers stay out of the water through mid week.


Is it November or June?

The November "June Gloom" pattern looks like it will stick around the southland for much of the week as a strong onshore flow prevails.

The Gloom will hold the temperatures down into the 60s at the beaches and 70s in the inland areas.

Some portions of the immediate coast may see the gloom linger through the afternoon hours. In these areas... temperatures will hold in the lower to middle 60s.

Saturday, November 03, 2007

The weak ahead...

Remember...
...Set your clocks back 1 hour...as it's time to FALL BACK!!!


Generally fair weather expected across the southland this week...except night and morning low clouds and locally dense fog...at the coast and some valley locations.

The warmest day of the week will be Sunday...then cooler temperatures is expected through Friday.

Weak off shore event Saturday

Weak off shore flow...due to high pressure over the Great Basin.

This will result in locally gusty winds through early Saturday afternoon through and below passes and canyons... Gusts may exceed 40 mph at times.

With the off shore flow also comes an increase in the fire danger and warmer temperatures on Saturday.

Some interior valley locations may see temperatures around 90 degrees or so Saturday afternoon.

Friday, November 02, 2007

Off shore wind event late Friday night through Saturday evening

High pressure will build build early this weekend over the Great Basin area of Nevada. This will result in a weak to moderate off shore flow over the southland... beginning late Friday night and lasting through Saturday evening.

The strongest of the winds will likely occur through and below passes and canyons... in these locations gusts to around 40 mph are likely.

Elsewhere... locally breezy conditions at times (15 mph or so).

The NWS has Red Flag Warnings in effect from late Friday night through early Saturday evening over most mountain and valley locations of the southland and Fire Weather Watches for the Hollywood and Malibu Hills.

Also... Wind Advisories have been issued for the mountains and valleys of Ventura and Los Angeles counties from late this evening through early Saturday afternoon.

Thursday, November 01, 2007

Weak off shore flow late Friday & Saturday

High pressure will develop over the intermountain west. This will result in an weak to moderate off shore flow over the southland Friday night and Saturday.

Look for a return to lower humidities and breezy to windy conditions...especially through and just below the passes and canyons by late Friday night and most of Saturday.

A Fire Weather Watch has been issued by NOAA'S National Weather Service for late Friday night through Saturday evening for the valleys and mountains of Ventura...Los Angeles...Orange...San Bernardino...Riverside and San Diego counties.

Additionally... temperatures are not expected to be anywhere close to the levels they were during last week's wind event.
mainly in the 70s at the beaches, lower 80s downtown LA and inland OC and 80s in the valleys.