Hydrometeorological Discussion
Issued by NWS California-Nevada RFC

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AGUS76 KRSA 161839

Hydrometeorological Discussion
National Weather Service / California Nevada RFC / Sacramento CA
1000 AM PST Sat Feb 16 2019



A large-scale trough continues to expand across the northern two
thirds of the country and is forecast to stretch from the west coast
to the Great Lakes by tonight.  A shortwave is moving onto the north
coast this morning, and plenty of showers are noted across northern/
central CA/NV and southern OR, especially on the north coast and in
the northern two thirds of the Sierra.  Freezing levels are around
2000-3000 ft and should fall to around 1000 to 3000 ft tonight.
Expect showers to persist through tonight and then enhance a bit
across central and southern CA Sun as another shortwave moves into
the region. Freezing levels 2000-4000 ft are expected.  By Mon,
expect mainly dry conditions with ridging building toward the west
coast. Models indicate another system spreading mainly light precip
across the area around the middle of next week.  A general model
blend was used for this extended portion of the forecast.  Models
indicate the best onshore flow and best potential for heavier precip
is in SW CA Thu. Freezing levels near 0-2000 ft in the north and
3000 ft in the south are expected.


All rivers that rose above flood stage over the past couple of days
have now receded below flood stage, and many are below their monitor
stages.  Lower reaches in the Sacramento and San Joaquin rivers are
still rising but all locations will remain below their flood stages
through the forecast period.

More information on the CNRFC website at www.cnrfc.noaa.gov



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