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Hydrometeorological Discussion
National Weather Service / California Nevada RFC / Sacramento CA
1250 PM PST Tue Feb 23 2021

...SCATTERED LIGHT PRECIP FAR NORTH AND EAST TOMORROW AND THU...
...NEXT DISTRUBANCES ARRIVE FROM THE NORTH ON FRI AND AGAIN SAT...

.METEOROLOGICAL CONDITIONS (SHORT TERM: TUE PM - FRI AM)...

Next s/wv trof expected to drop from the Pacific Northwest to the 
Great Basin tomorrow. Still looking at some scattered light precip 
across northeast NV as the favorable dynamics squeeze out the 
minimal moisture in the atmosphere. Then the next s/wv trof will 
move across the Pacific Northwest on Thursday and track eastward 
toward the northern Rockies. The southern extent of this feature 
will bring some scattered light precip to the far northern tier of 
the region. Other than these two features bringing scattered light 
precip to far northern and eastern area...the majority of the region 
will remain dry.


.METEOROLOGICAL CONDITIONS (LONG TERM: FRI AM - MON AM)...

Expect light showers across the southern OR Cascades and far 
northern NV Fri under W to NW flow over the region.  By Fri night 
into the weekend, expect a shortwave to drop south into the region, 
becoming a closed low and leading to light showers across far 
northern CA, much of NV, parts of the Sierra and possibly southern 
CA higher terrain.  Activity should wind down for the most part by 
Sun.  Expect freezing levels 2000-5000 ft across far northern CA/NV 
and levels 5000-8000 ft further south.  Some guidance shows another 
system approaching the coast early next week, but there is plenty of 
uncertainty as some guidance shows light precip over the region and 
some shows precip completely missing the region.  Followed WPC QPF 
closely through the period.