A major and messy winter storm will probably create slick travel conditions in many parts of the region Tuesday morning. And the snow and sleet, combined with gusty winds, may be arriving during the morning commute.

But federal workers: We’re not convinced conditions will be bad enough for a shut down and we think you may stay open for business — although perhaps you’ll be delayed.

SchoolCast

The schools most likely to close are those west of Interstate 95, where the most snow and coldest temperatures are expected — which will lead to slick road conditions.

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The weather in the District and east of Interstate 95 may even be messy enough for some schools to pack it in, but it’s more uncertain. Some school systems may opt to delay instead.

Historically, D.C. public schools will stay open unless conditions are seriously hazardous, so the city’s likelihood of delay and closing is lower than adjacent school systems.

Schools in St. Mary’s County, where mostly rain is expected, may open on time.

Because schools haven’t used up snow days to this point this winter, we think they’re more likely to err on the side of caution and these likelihoods take that into account.

FedCast

We don’t think this storm will be severe enough to shut down the federal government. But because conditions may be slick early in the morning and snow may coincide with the morning commute, we could easily see a delayed opening.