…Periods of heavy coastal rain and mountain snow to impact the Northwest
this weekend, with heavy snow also spreading into the Northern Rockies…
…Heavy rain and severe weather potential to develop over the Southern
Plains Sunday night…
…Elevated fire weather concerns will continue across parts of the
Northeast through this weekend…
Unsettled weather is in store for the Pacific Northwest and Northern
Rockies through early next week as a strong cold front moves inland later
today and leads to a consistent flow of Pacific moisture into the region.
Heavy coastal rain can be expected throughout western Oregon and
Washington, with heavy snow in the higher elevations of the Olympic and
Cascade mountains. Winter Storm Warnings are in effect starting today
across the Cascades due to forecast snowfall accumulations up to 2 feet.
Mountain snow is also anticipated to expand eastward into the Northern
Rockies by late tonight. Meanwhile, a separate area of low pressure racing
out of the Northern Plains today ahead of the Pacific Northwest system may
produce a swath of moderate snow of its own, with the medium chances
(40-60%) for at least 4 inches of snow across northeast Montana and
northwest North Dakota.
By Sunday night, a blossoming precipitation shield is forecast to impact
the southern Plains in response to a rapidly strengthening low pressure
system. This anomalously strong area of low pressure will help surge ample
atmospheric moisture content northward into a draped stationary boundary
and produce areas of heavy rain from North Texas and the Texas Panhandle
through central Oklahoma into eastern Kansas by Monday. Scattered
instances of flash flooding are possible. Additionally, thunderstorms may
become severe as an attached cold front pushes across the Lone Star State,
with a risk damaging wind gusts and possibly a tornado or two into Monday
morning.
Dry conditions and gradually warming temperatures can be expected across
the eastern U.S. through early next week in response to a large high
pressure system sliding to the East Coast by Monday. While this is great
news for outdoor fall activities, there remains elevated fire weather
concerns throughout New England and the Northeast this weekend due to
recent increasing drought conditions and breezy northwest winds. Red Flag
Warnings continue for much of the highly populated I-95 corridor from
Philadelphia to Boston.
Snell
Graphics available at
https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php
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