…Heavy snow possible near the U.S. Canadian border from the Great Lakes
to Maine…
…Temperatures drop well below average from Ohio Valley to East Coast
this weekend…
…Critical Fire Weather Risk from portions of the Southwest to Southern
Plains this weekend…
A potent low pressure system will track along the U.S. Canada border
through Saturday. The attendant cold fronts will propagate through the
Ohio Valley and East Coast, where a cool continental airmass will flow
into. Temperatures are likely to fall well below average as a result.
Highs may drop between 15-30 degrees below average in some parts of the
East this weekend. Snow showers will develop downwind of the Great Lakes
due to northwesterly flow on the backside of the cold front. Heavier
snowfall is more likely over portions of the Northern Appalachians where
upslope enhancement could occur. Gusty winds are also possible over parts
of the Ohio Valley into the Northeast.
Meanwhile, troughing in the West will promote unsettled weather across the
region this weekend. A mid-level low will weaken as it moves across the
Southwest. Dry and windy conditions along the base of the trough will
support a Critical Fire Weather risk from southeastern Arizona into far
southwestern New Mexico on Saturday followed by southeastern New Mexico
and western Texas on Monday and Tuesday. Some rain/snow showers may
develop over the Four Corners on Sunday followed by potential scattered
shower and thunderstorm activity over the Southern Plains on Monday. An
amplifying upper trough in the East Pacific will bring more rain showers
and mountain snow to the West Coast beginning Saturday night. This system
may generate severe storms over portions of the Lower/Middle Mississippi
Valley and Southeast/Mid-Atlantic Coast next Tuesday-Wednesday
respectively.
Kebede
Graphics available at
https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php
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