Weather Thursday March 21 2024 ION Weather Fair and cold NE dry most of the east ... Texas and Gulf coast rains and dry today for the west coast

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Snow showers forecast throughout the Northeast over the next few days;
accumulating snowfall forecast in portions of New England.
Light to moderate snow spreads from the northern Plains to the Great
Lakes by Friday; strong winter storm expected this weekend.
Shower and thunderstorm chances return to the Southern Plains and Gulf
Coast
The forecast remains on track for a low pressure system to deepen this
evening across the Interior Northeast and New England, producing periods
of snowfall while also reinforcing lake enhanced snow showers in its wake.
Minor to locally Moderate potential winter storm impacts can be expected
with this round of snowfall through tomorrow afternoon focused over
portions of northern New Hampshire and Maine, where high probabilities
(80-90%) of at least 4 inches of snow are noted.
Meanwhile, a separate winter storm is anticipated to produce a swath of
snow beginning tonight between the northern Plains and Great Lakes through
the end of the work week as a precipitation shield develops along an
emerging frontal wave, which shifts eastward by tomorrow night. High
probabilities for at least 4 inches of snow remain across northwest
Montana, with medium to high probabilities (40-80%) extending from
north-central Montana to central Minnesota, including southern South
Dakota, where a swath of Winter Weather Advisories are in effect. Greater
chances for moderate to heavy snow shifts to the Upper Midwest and Great
Lakes by Friday, where there is the potential for up to 10-12 inches of
snow. Beyond this first round of Northern Tier snowfall, the pattern will
remain quite active looking into this weekend as confidence is increasing
that a large storm system will produce a swath of heavy snow, freezing
rain, and sleet across portions of the Northern Plains and Upper Midwest
into early next week. Residents should remain weather aware and up to date
with the latest forecast as details change with these next two dynamic
snowfall events.
Elsewhere, unsettled weather is set to return to the southern Plains, Gulf
Coast, and parts of the West Coast. An uptick in shower and thunderstorm
activity is expected tonight and tomorrow over portions of Oklahoma and
Texas as a stubborn upper-low ejects into the Southern Plains tonight. By
tomorrow, rain could become heavy enough along the western Gulf Coast and
southeast Texas to produce isolated flooding concerns. This system is
forecast to progress eastward into the Gulf of Mexico on Friday, spreading
showers and thunderstorms along the entire Gulf Coast, as well as
eventually Florida and the Southeast by late Friday. However, both the
severe and flooding threat associated with this system remain marginal.
For the West Coast, light to moderate rain is expected to move inland
across northern California and the coastal Midwest on Friday. As the axis
of precipitation along a frontal boundary intersects the Sierra on Friday
night, heavy snow is possible throughout the mountainous terrain.