On 02/28/2016 01:22 AM, songbird wrote:
T wrote:
...
I just checked the jet steam:

http://squall.sfsu.edu/crws/jetstream.html

There is a tiny low pressure (counter clockwise swirly),
but is really weak and may only affect British Columbia.

It may be a few weeks before anything wet happens.

looked like some rain/snow went through yesterday
and the day before. there are the CA water websites
i use for that and the regional radars. if you want
links i'll post 'em.

i also check GEOS water vapor loop when i think of it
and want to see what is possible:

http://www.ssd.noaa.gov/goes/west/nepac/flash-wv.html

Hi Songbird,

I look at the water vapor over on
http://www.wrh.noaa.gov/satellite/?wfo=rev

I haven't found it very helpful as far as rain goes.
The infrared (also on that web site) is a lot more
helpful. The vapor is a good indication of the relative
humidity. Great to know during Fire Season. Nevada
has two seasons: winter and fire season. (Fishing
season is all year, so it doesn't count.)


right now the pattern has shifted again to where the
moisture is coming from the NW and not the SW, but for
a while a few weeks ago the pattern had shifted to where
some storms were being driven by moisture coming from
the SW. i hope it shifts again and they get some
decent rains before the snow season is up.


songbird


There should be a tag team of Maritime Tropical and Maritime
Polar storms coming through. Seems like we have been missing
the Polar one lately (too far north). And the Tropical
seems to be AWOL lately. It is typical in the summer
for these two guys to separate so much that there is no
rain at all for months.

The Jet Stream is a complete hoot to watch. The high and
low pressures are a give away. This is why the Vapor
isn't really helpful. It does not show the moist warm
air (low pressure, counter clock wise rotation) rising
over cold descending air (high pressure, clock wise rotation),
which triggers the rain.

In the summer, you can predict thunderstorm by watching
a low pressure on the jet stream off Southern PRC (People's
Republic of California) suck water off the ocean and
rotate it over southern Nevada and Utah, then bang it
up again the back side of the Sierra's and storm like hell.
Our thunderstorm are the most fascinating drama you
can imagine.

The weather has fascinated me since college. My wife
says I am better than the weathermen on the TV.
(No big leap. They are too ignorant/arrogant to
actually look at NOAA's weather side and see for
themselves, which is what happens when your are
hired for your looks.)

-T