162
AGUS76 KRSA 251332
HMDRSA

Hydrometeorological Discussion
National Weather Service / California Nevada RFC / Sacramento CA
630 AM PDT Tue Jun 25 2024

...SCATTERED SHOWERS AND T-STORMS THRU TOMORROW, BEST CHANCES OVER
THE SIERRA INTO NV TODAY AND OVER NV WEDS...
...DRY CONDITIONS RETURN FOR THE END OF THE WEEK INTO THE WEEKEND
WITH CONTINUED ABOVE NORMAL TEMPS...

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

Radar and satellite imagery showing some scattered showers moving
into the Bay Area while lightning detection picked up some strikes
and flashes both offshore and over land this morning. This is thanks
to a large area of 1+" PW of moisture generally from I-80 southward
across CA and srn NV as the region is settled between high pressure
to the southeast and low pressure to the northwest. Mid level
moisture and instability will allow for chances of scattered showers
and thunderstorms today and tomorrow. Best chances of convection
will be over the CA higher terrain and across NV today then over NV
tomorrow. HREF exceedance probabilities show a 10-40% chance of
0.50+"/hr rain rates over parts of the Sierra this afternoon and
evening. After Wednesday, the low approaching from the Gulf of
Alaska will push the moisture away from our area followed by another
low from the same location arriving over the weekend. This will
return dry conditions to the region for the rest of the forecast
period.

As far as temperatures go, high pressure influence from the desert
southwest and TX will keep afternoon highs generally 5-15 deg F above
normal away from the coast for today. Some cooling is then expected
tomorrow as the low over the Gulf of Alaska arrives along the PacNW
pushing high pressure back inland the rest of the work week. The
aforementioned second low will keep this pattern alive through the
weekend and bring temperatures inland back closer to seasonal
normals with patchy areas still 5+ deg F above normal. Coastal areas
will see more notable cooling.


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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