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AGUS76 KRSA 261330
HMDRSA

Hydrometeorological Discussion
National Weather Service / California Nevada RFC / Sacramento CA
630 AM PDT Wed Jun 26 2024

...ANOTHER DAY OF SCATTERED SHOWERS AND T-STORMS THANKS TO
MOISTURE OVER THE REGION BEFORE DRYING RETURNS...
...NEAR TO ABOVE NORMAL TEMPS THROUGH THE WEEKEND FOLLOWED BY
ADDITIONAL WARMING MON/TUES...

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

LSRs over the past 24 hrs reported a few instances of roadway
flooding in the Sierra near the NV border while observations report
precip amounts from a few hundredths to nearly 0.50" from yesterdays
showers/storms. Radar imagery and lightning detection picking up
scattered showers and thunderstorms across central/nrn NV this
morning as the region remains under a large swath of 1"+ PW of
moisture being rotated into the area by high pressure over the Four
Corners. Meanwhile a low still approaches the PacNW from the Gulf of
Alaska. Another day of scattered showers and thunderstorms as the
moisture and instability remain overhead. Best chances will be over
the higher terrain areas of central/srn CA and across NV. Troughing
will push into the PacNW later today providing for a little cooling
compared to the past few days with afternoon high temperatures near
to 10 deg F above normal for much of the region. NW CA and coastal
areas are expected to be below normal. As the low moves across the
PacNW it will act to push the high pressure further inland pulling
the moisture out of the area. Some lingering showers/thunderstorms
maybe into early Thursday morning before dryer air begins to move
in. A general troughing pattern should remain in place the rest of
the work week before the next low heads towards the PacNW from the
Gulf of Alaska into the weekend. 500 mb heights will be high enough
to keep temperatures near to above normal for most inland locations
in-spite of the troughing.

Once that second low moves through, stronger high pressure will then
build in over the eastern Pacific into early next week resulting in
a return to warming. Additional shortwaves over the PacNW will help
moderate temperatures some across parts of far nrn CA and NV, though
most areas are forecast to see afternoon highs of 5 to nearly 15 deg
F above normal for Monday and Tuesday.


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



AS

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