…Locally heavy lake-effect snow will continue off the Great Lakes…
…Low pressure to approach Great Lakes region by Wednesday bringing
strong winds and a reinforcing shot of Arctic air to the northern Plains
and Midwest…
…Below normal temperatures will continue through the middle of the week
across much of the East, with above normal temperatures across the West…
Cold high pressure dropping southeast across the Midwest will be filtering
south down across the Mid-South and into much of the Southeast going
through the middle of the week which will keep temperatures across much of
the East below normal. In fact, some high temperatures across the southern
Appalachians and interior of the Southeast will be as much as 10 to 20
degrees below normal. Cold air meanwhile will continue to foster some
areas of locally heavy lake-effect snow downwind of the Great Lakes, with
as much as 6 to 12+ inches of additional snow possible through Tuesday,
and especially off Lake Erie impacting northwest Pennsylvania and far
western New York.
A new storm system though will be intensifying and approaching the Great
Lakes region by Wednesday. This will bring areas of strong winds to much
of the northern Plains and Midwest region by Wednesday morning, and these
winds will overspread the Great Lakes region by Wednesday night. A
reinforcing shot of Arctic air will be arriving as well behind a strong
cold front. This will also gradually reload the prospects for new rounds
of lake-effect snow later in the week downwind of the Great Lakes.
Across areas of southern Texas and the broader northwest Gulf Coast
region, a weak area of low pressure will be focusing close to the coast
and should help bring some resurgence of moisture northward across the
region going through the middle part of the week. This moisture coupled
with proximity of a front will bring a threat for some locally heavy
showers and thunderstorms, with some of the heaviest rainfall potential
expected across far southeast Texas and Louisiana where a couple of inches
will be possible going through Wednesday night.
Elsewhere, much of the West will be above normal for temperatures as high
pressure aloft continues over the region. This will also keep much of the
region dry.
Orrison
Graphics available at
https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php
