...MONSOON MOISTURE CONTINUES THROUGH TUE WITH SCATTERED PRECIP...
...DRYING WED-FRI EXCEPT FAR SOUTHEAST THEN MOISTURE RETURNS SAT...

.METEOROLOGICAL CONDITIONS (MON AM - SUN AM)...

Strong high pressure continues downstream of the area...anchored
over the northern/central Rocky Mountain states stretching toward
the northern Plains states. This has generated record setting heat
with a core of nearly 6000-meters at 500-mb over these locations.
Flow across CA and NV on the upstream side of this feature continues
from the southeast to south with a strong surge of moisture
associated with the monsoon. 13/12Z RAOBs at both KNKX and KREV
indicate a PW value very close to 1.00-inch with the overall profile
showing less temperature/dew point spread in the lower levels. Radar
and satellite imagery shows a stream of cloudiness and scattered
echoes streaming northward with the best line of showers stretching
from near Lake Tahoe over extreme western NV. This overall flow
regime will continue through today and tomorrow with scattered
showers and thunderstorms possible mainly over the Sierra...coastal
mountains of southern CA and much of NV. Then into Wednesday...the
high pressure moves far enough downstream across the middle of the
country with a s/wv trof approaching the Pacific Northwest...which
is expected to turn the overall flow a bit more from the southwest.
This will dry out the atmosphere a bit with PW values dropping
closer to 0.50- to 0.75-inch...except for far southern CA and
southern NV. This will pull much of the precip back to these areas
through Friday. By the time the next weekend approaches...look for
the high pressure to re-establish itself over the northern/central
Rocky Mountain states stretching toward the northern Plains states.
Flow across CA and NV turns southeast and south...drawing the next
surge of moisture toward the region.

Freezing levels are currently running from 14000- to 17000-feet from
northwest to southeast...fluctuating a little through the period.

Please Note: This product may NOT be routinely updated.
Please refer to the following product issued by the CNRFC
www.cnrfc.noaa.gov/Daily-Briefing for a graphical summary of
weather and hydrologic conditions.