Winter Storm Indra will deliver a cross-country swath of snow this week across the Rockies, Midwest and Northeast, likely contributing to travel headaches in parts of those regions.
(MORE: How Winter Storms Are Named)
Indra was named Sunday afternoon as the National Weather Service issued winter storm warnings for much of Utah, including Salt Lake City, satisfying the population criteria for naming.
Indra has already brought snow to the Cascades and Sierra Nevada and will move into the Rockies and northern Plains through Monday.
Thundersnow was reported in the northern Sierra late Sunday morning.
It was slow going, or not going at all, in Donner Pass on Interstate 80 in the Sierra Saturday evening due to heavy snowfall.
Winter storm warnings and winter weather advisories have been posted in parts of the Rockies, from Montana to Colorado and the Nebraska panhandle and westward to Utah, including the Salt Lake City metro area, and Nevada. Winter storm warnings are also posted in the Sierra through Monday morning.
Cold air is expected to remain in place in the northern tier of states as Indra’s low-pressure system tracks from the Pacific Northwest early in the week into the Great Lakes by midweek. Along and north of the low’s track, temperatures are expected to be cold enough for accumulating snow.
While this is expected to be a lighter snowfall event overall than Winter Storm Harper this past weekend, it may still produce travel impacts in the affected areas in the form of slippery, snow-covered roads and blowing and drifting snow.
Here is our forecast timeline, followed by our latest snowfall forecast.
Indra Forecast
Monday
- On Monday, snow will persist from parts of the Great Basin into the northern and central Rockies while also spreading into the northern and central Plains and upper Midwest through the day.
- Monday night, the swath of snow will stretch from the central Rockies to the central Plains, upper Midwest and northern Great Lakes. Some patchy freezing rain or sleet is possible in the central Plains.
Tuesday
- Although this storm is not expected to be particularly strong, the low-pressure system may intensify a bit on Tuesday as it moves into the Midwest.
- A band of moderate to locally heavy snow may set up from parts of Nebraska and Iowa into southeast Minnesota, far northern Illinois, Wisconsin and Lower Michigan.
- Some freezing rain or sleet ma fall in parts of Iowa and Illinois.
- This could lead to travel impacts, including snow-covered roads and flight delays.
- Snow will spread into parts of the interior Northeast Tuesday night, from northern Pennsylvania into western, central and upstate New York. Some freezing rain or sleet is possible.
Wednesday
- The area of low pressure will track into southeastern Canada, but snow and some freezing rain will remain possible across parts of the interior Northeast.
- A rain/snow mix is likely from Arkansas and northern Mississippi northeastward to southern Michigan, which will likely turn over to all snow on the western edge later on Wednesday.
- Mainly rain is expected along the Interstate 95 corridor from Boston to New York City and Philadelphia.
- Another wave of low pressure may develop along the cold front by Wednesday night or Thursday.
- This could allow snow to persist in portions of the interior Northeast Wednesday night through Thursday.
Snowfall Forecast
- Parts of the Rockies and Sierra will pick up a foot of snow.
- A swath of the upper Midwest from Nebraska to Michigan may pick up 6 inches of snow Tuesday into Wednesday.
- It remains too soon to be certain, but most areas of the interior Northeast, from northern Pennsylvania to western, central, upstate New York and northern New England are expected to see light to moderate snow accumulations, much less than those from Winter Storm Harper.
Check back to weather.com for forecast updates on this week’s snowmaker, as we’ll be able to iron out the key details in the coming days.
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