Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
228 PM EST Sun Feb 27 2022

Valid 00Z Mon Feb 28 2022 - 00Z Wed Mar 02 2022

...Heavy rain and snow melt to contribute to increasing flooding concerns
across portions of the Pacific Northwest...

...Above normal temperatures extending across much of the U.S. through the
early part of the week...

A series of Pacific systems are likely to produce unsettled weather from
the Pacific Northwest into the northern Rockies through the early part of
the week.  The system that moved into the region earlier today will
continue to weaken, providing a brief lull before the next system begins
to impact the area tonight.  Associated with an atmospheric river, this
next system is forecast to direct a long fetch of deep Pacific moisture
into the Northwest -- fueling heavy precipitation across western
Washington and northwestern Oregon.  The heaviest precipitation is
expected to develop overnight and continue into tomorrow.  As snow levels
increase, the combination of heavy rain along with melting snow may raise
flooding concerns in the coming days across portions of the Northwest.

Elsewhere across the western U.S., high pressure and dry conditions are
forecast to continue through the early part of the week.  Temperatures are
expected to warm to above average, with offshore winds promoting
near-record to record high temperatures across portions of California
tomorrow and Tuesday.

Across the central and eastern U.S., a fast-moving system is expected
produce rain changing to snow from eastern North Dakota to the upper Great
Lakes tomorrow, before producing some generally light snow accumulations
across the Northeast on Tuesday.  Meanwhile, a second system is forecast
to deliver some additional light snow and mixed precipitation across the
northern Great Plains to the upper Great Lakes on Tuesday.  South of the
these systems, temperatures are forecast to warm, with above to well-above
normal temperatures expanding across the Plains and Midwest into midweek. 

Following a chilly start to the week behind an arctic front dropping south
through the Northeast and the Mid Atlantic, temperatures are forecast to
moderate on Tuesday and Wednesday across much of the eastern U.S. as well.

Pereira

Graphics are available at
https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php