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 Post subject: Re: SoCal Monsooner or Later WX
PostPosted: Wed Sep 13, 2017 7:31 am 
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Rodger's Ridge
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Location: Little slice of heaven in the Eastern Sierra
We enjoyed a good old-fashioned thunderstorm late yesterday afternoon/early evening. Dark clouds, thunder booms, lots of lightning, heavy hail bouncing off the roof then a nice downpour. It didn't last very long, but it left us with a fabulous double rainbow over town and hail on the summit of Mammoth Mountain (not the first snow of the season as MMSA touted on their FB page!).

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Taken by my friend at the Hayden Cabin around 6:00 p.m.

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 Post subject: Re: SoCal Monsooner or Later WX
PostPosted: Wed Sep 13, 2017 2:34 pm 
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Center Bowl
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Great pics SL thanks.
And thanks for pointing out Hail not Snow.
I hate it when people confuse hail with snow.


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 Post subject: Re: SoCal Monsooner or Later WX
PostPosted: Wed Sep 13, 2017 5:03 pm 
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Cornice Bowl
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Is there any way something can get going from debris clouds? I notice the L circulation is blowing those off the Sierra towards SF.

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 Post subject: Re: SoCal Monsooner or Later WX
PostPosted: Wed Sep 20, 2017 8:55 pm 
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Kiwi Flat
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Location: In the gurgling maw of the Pacific.
2NAKLLR wrote:
2NAKLLR wrote:
And a troughy outlook for the W. September stormses?

playfulcoyote wrote:
snowhottie wrote:
I like these lows! Can we get some more?

It sure would keep things interesting if we got these more often. Missed out this time but it's always nice to have a chance and some hope.

Quote:
Fairly good agreement between the GFS and ECMWF for the extended
part of the forecast. The large trough will move northeast on
Saturday as a weak peak-a-boo ridge forms, which should bring
some decrease in the marine layer stronghold and noticeable
warming with temperatures returning to near normal. A weak trough
forms quickly after that on Sunday and Monday, but 500 MB heights
actually increase a little so not expecting a whole lot of
change. Models show another large trough forming over the western
United States by Tuesday which would leading to cooling and more
marine layer. The ECMWF actually swings the low through southern
California next Wednesday, which is something to keep an eye on.


Quote:
A mid-upper level trough will dig south and across Southern
California Thu-Fri. Low level moisture will increase across the
area. The moisture will be confined below about 6,000 FT, but
looks to be enough for a few showers from the coast to especially
the coastal mountain slopes beginning around the morning rush
Thursday with the rain risk continuing through Thursday evening.

Rain totals look to average a few hundredths of an inch along the
coast to the inland valleys. Maxima looks to be along the San
Bernardino coastal slopes in the Crestline-Yucaipa Ridge area
where totals of just over a half an inch are forecast. There is a
short period of decent upslope flow in concert with a narrow
plume of moisture moving Southeast across the area to support this


w00t!
Few hundredths coastal. I think this is it for SEP so we'll go to a SoCal thread after the 15th.


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 Post subject: Re: SoCal Monsooner or Later WX
PostPosted: Wed Sep 20, 2017 9:42 pm 
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Cornice Bowl
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I was outside up HERE this afternoon and it began misting on me, and I thought oh how cute and then it began RAINING on me. It was brief but it actually wet the ground.

I cant get over that a short time ago I was dying in 100+ degree heat. This Summer has been very roller coaster.

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 Post subject: Re: SoCal Monsooner or Later WX
PostPosted: Mon Oct 16, 2017 7:50 pm 
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Kiwi Flat
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Location: In the gurgling maw of the Pacific.
Its october but its lightning.
http://en.blitzortung.org/live_lightnin ... php?map=35


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 Post subject: Re: SoCal Monsooner or Later WX
PostPosted: Tue Oct 17, 2017 5:48 am 
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Climax
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Location: South facing foothills of the Santa Susanas
Thanks for the heads up 2NAK
LAX this 4:56 AM -
"All eyes on a nice little vort Max 350 miles to the west-southwest of lax. This
is a rather unstable system and is currently putting out quite a
bit of lightning. This system will bring scattered tstms to the
nrn waters later this morning. It is forecast to weaken somewhat
as it moves to the NE but it will still bring a slight chc of
tstms to slo and sba counties as well as the vta mtns this
afternoon and evening. The cloud bases could be so high that most
of the precip will fall as virga. Dry lightning could be a
problem with this system."

I was sitting outside coffeeing this early AM and noticed a straight line of high clouds moving in from the south... ?

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 Post subject: Re: SoCal Monsooner or Later WX
PostPosted: Tue Oct 17, 2017 9:08 am 
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Cornice Bowl
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Spirit Tree wrote:
noticed a straight line of high clouds moving in from the south... ?


I saw that up here in the Bay Area too. I was up so early because it was hot last night.

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 Post subject: Re: SoCal Monsooner or Later WX
PostPosted: Tue Oct 17, 2017 11:04 am 
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Cornice Bowl
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This isnt technically monsoonal, but Blobby is coming ashore with lightning still.

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 Post subject: Re: SoCal Monsooner or Later WX
PostPosted: Tue Oct 17, 2017 11:06 am 
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Kiwi Flat
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Location: In the gurgling maw of the Pacific.
Whatyamean? Its on the W side of the Continental high. The H is just massive and the draw is out over the ocean. MJO is in our phase also.


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 Post subject: Re: SoCal Monsooner or Later WX
PostPosted: Wed Oct 18, 2017 12:05 am 
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Cornice Bowl
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2NAKLLR wrote:
Whatyamean? Its on the W side of the Continental high.


But is it approaching us from South and East under the H? I think not.

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 Post subject: Re: SoCal Monsooner or Later WX
PostPosted: Wed Oct 18, 2017 8:40 am 
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Kiwi Flat
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Location: In the gurgling maw of the Pacific.
We're talking 300mi. Had the H been situated a bit more E [or smaller] that blob would be drawn right up baja. Monsoons are drawn N [or S] by High pressure world wide. 300mi difference and India gets no monsoon.


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