…Critical fire weather conditions will continue across Southern
California through at least this morning…
…A significant winter storm will continue to bring heavy snow and
disruptive ice across much of the South through Saturday morning…
…Pacific Storm to bring lower elevation rain/mountain snow to the
Pacific Northwest…Great Basin and Rockies through Saturday…
Modified arctic air combined with a moisture-laden area of low pressure
along the Gulf Coast will continue to allow for a broad area of winter
weather impacts from the Lower Mississippi Valley to the Southeast today
into early Saturday morning. Areas of light to moderate snow will
translate east from eastern Oklahoma, southern Missouri and Arkansas this
morning into and across the Tennessee Valley, eventually reaching the
Mid-Atlantic region tonight. Snowfall accumulations of 4 to 8 inches are
expected from near Memphis into the central Appalachians. Sleet and
freezing rain will affect locations just south of the snowfall, with ice
accumulations locally in excess of 0.25 inches from far northeastern
Alabama into northern Georgia and upstate South Carolina. Light snowfall
accumulations (1 to 3 inches) are anticipated farther north from the Ohio
Valley into northern portions of the Mid-Atlantic region. Below average
temperatures from the south-central to southeastern U.S. will moderate
into the weekend but remain roughly 5 to 15 degrees below average on
Saturday into Sunday.
Across the western U.S., strong high pressure over the Great Basin will
begin to weaken during the day today, but Critical fire weather conditions
will continue over coastal locations of Southern California through the
remainder of this morning with localized gusts to near 60 mph. While wind
gusts are likely to weaken into this afternoon and evening, remnant gusty
winds and low relative humidities will continue dangerous conditions into
the afternoon and evening.
Elsewhere across the western U.S., a quick moving cold front will sweep
across the Northwest and Great Basin today, bringing coastal rain to the
Pacific Northwest and mountain snow to the Cascades, northern Great Basin
into the northern and central Rockies. Low pressure associated with the
western U.S. storm system will reach the northern Plains and Upper Midwest
on Saturday/Saturday night, resulting in light (1 to 3 inch) accumulations
for eastern Montana, North Dakota into the Upper Mississippi Valley.
Otto
Graphics available at
https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php
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