432
AGUS76 KRSA 131503
HMDRSA

Hydrometeorological Discussion
National Weather Service / California Nevada RFC / Sacramento CA
830 AM PDT Thu Jun 13 2024

...CHANCES OF SHOWERS/T-STORMS OVER THE SIERRA CREST AND POINTS EAST
INTO NV TODAY THEN PRECIP POSSIBLE OVER FAR NORTH SUNDAY INTO
TUESDAY...
...COOLING INTO EARLY NEXT WEEK WITH TEMPS DOWN TO NEAR NORMAL TO 20
DEGREES BELOW NORMAL EARLY NEXT WEEK...

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

A trough/low approaching the B.C./Pac NW coast from the Gulf of
Alaska and a low off the Srn Coast this morning will move inland
through Srn CA today into tonight. Drizzle/light precip with the
marine layer along Central and Srn CA coast this morning. Some
instability and moisture for a chance of showers and thunderstorms
near the Central/Srn Sierra crest and east into NV this
afternoon/evening. Max temps cool to near normal to 15 degrees above
normal (warmest temps over NE CA plateau and into Nrn NV) and near
to around 10 degrees below normal over the CA coast this afternoon.

Upper level trough deepens along the west coast with a low along the
B.C./Pac NW coast on Friday bringing cooler temps to the north and
similar to warmer temps along Central Ca coast and over Srn CA and
Srn NV. Max temps generally near normal to 12 degrees above normal
except up to 15 degrees below normal along NW CA coast. An isolated
shower/thunderstorm is possible along the Srn Sierra crest Friday
afternoon/evening.

Low/Trough moves onshore into B.C./Pac NW on Saturday spreading the
cooler temps farther south. Max temps over Srn OR and Nrn CA cool to
near normal to around 15 degrees below normal and near normal for
Central Ca and Nrn NV and near normal to around 15 degrees above
normal for Srn CA and into Srn NV. Trough over the western U.S. with
several shortwaves moving through the Pac NW and into Nrn CA and Nrn
NV Sunday into Tuesday next week. Showers possible at times over the
west slope of the Srn OR Cascades and near the ORCA border and Nrn
NV Sunday through Tuesday. Max temps generally drop to near normal
to 15 degrees below normal for most of the region except near normal
to 10 degrees above normal for SE CA and Srn NV on Sunday. High
temperatures across the region drop to near normal to around 20
degrees below normal on Monday and Tuesday (coolest over NV on
Tuesday). Low temps cool to generally near normal to 12 degrees
below normal Monday night  and remain similar to a bit warmer
Tuesday night. Freezing levels generally lower to around 6000-9000
ft over the far north Sunday night into Tuesday. High pressure
builds back into region towards the end of the week bringing a
return of temperatures to generally near to 15 degrees above normal.


Please Note: This product may NOT be routinely updated Friday
through Sunday between Jun 1 and Oct 1. Please refer to
www.cnrfc.noaa.gov/dailyBriefing.php for a graphical summary of
weather and hydrologic conditions.

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



Osborne

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