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AGUS76 KRSA 041458
HMDRSA

Hydrometeorological Discussion
National Weather Service / California Nevada RFC / Sacramento CA
830 AM PDT Fri Oct 4 2024

...WARM AND MAINLY DRY THROUGH WEDNESDAY...

.METEOROLOGICAL CONDITIONS (FRI AM - THU AM)...

Ridge of high pressure dominant over the region through the weekend
with an upper level shortwave trough moving through the B.C./Pac NW
today. Precipitation expected to stay north of the region today for
dry conditions continuing through the weekend. Max temperatures
around 5 to 20 degrees above normal through the weekend except near
normal for far NW CA and Srn OR Cascades this afternoon with trough
moving by to the north. Overnight temperatures around 5 to 25
degrees above normal through Monday morning. Near record to record
temperatures possible through at least Monday morning. Temperatures
generally cool a little Monday afternoon with a slight chance of a
few showers over Sierra Crest and into NE Nevada with a weak
shortwave trough along the CA coast. The upper level shortwave
trough develops into a weak low off the Srn CA coast on Tuesday and
inland or down along Baja coast on Wednesday as an upper level
trough approaches the west coast. This will cool max temperatures to
near normal to 15 degrees above normal (coolest along the coast).
Overnight temperatures generally near normal to 15 degrees above
normal.  Models vary and ensemble members vary with timing of the
trough moving onshore (the 06Z GFS the quickest late Thursday into
Friday and the 00Z EC about 24 hours later).

QPF graphics are available at www.cnrfc.noaa.gov/qpf.php



Osborne

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