00:00:21
Wet weather to return to
the Central California
00:00:23
Interior by this
weekend.
00:00:25
A pair of Pacific weather
systems will arrive
00:00:28
The first will move into Central
California Thursday night,
00:00:32
with periods of
rain developing,
00:00:34
continuing into Friday.
00:00:36
A typical winter pattern
in California is that
00:00:39
we'll see anywhere from four
to seven major storms,
00:00:43
that's a typical winter
weather pattern.
00:00:45
You know, we've been under a
ridge of high pressure here
00:00:48
for the past, you know, few
days and it has been warm
00:00:52
and almost borderline
spring like conditions.
00:00:53
And so now the cold air
is reloading out
00:00:56
over the Eastern Pacific
00:00:59
and it's going to bring
another big system,
00:01:00
so we'll see temperatures
coming back down
00:01:02
and snow levels dropping.
00:01:05
If you're going to
be out there Friday,
00:01:07
you're going to
be getting wet.
00:01:09
Now, the question is, is
it going to be rain
00:01:12
or is it going
to be snow?
00:01:13
So we come back over here
and we take a look
00:01:16
and it says here
around 4,800 feet,
00:01:18
we're expecting snow, for
points 4,800 feet and above,
00:01:22
we're expecting snow.
00:01:28
So here we are
standing at the boundary
00:01:30
of Yosemite National Park.
00:01:32
We've got the Merced River
flowing down here next to us,
00:01:35
and on the other
side, Highway 140,
00:01:37
and up the road is the Arch
Rock Entrance Station.
00:01:40
We've got some rain, it's the
beginning of a big storm,
00:01:43
it's supposed to rain
and snow all day,
00:01:45
and we've got a
temperature of 46 degrees
00:01:49
and we are here
at 2,126 feet.
00:01:52
We've got a benchmark
nearby that verifies that.
00:01:55
So we're going to
head up the road
00:01:56
and see where we can find
rain turning to snow.
00:01:59
In some strict term,
snow line is actually
00:02:02
the elevation at which
snow stays year round.
00:02:06
And then you have a
seasonal snow line
00:02:08
and that's the
line at which
00:02:09
snow can be expected
to be in the wintertime.
00:02:13
And then you
have the snow line
00:02:14
that can happen in
a certain storm,
00:02:16
which is extremely
variable over time
00:02:18
and space in each
individual storm,
00:02:21
that transition is what
we are chasing.
00:02:23
We're trying to find
out, in this storm,
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