11:15 a.m. update: US 20/26 has re-opened.
As of 5:35 am, Tuesday morning, the Wyoming Department of Transportation has closed the stretch of highway between Moneta and Casper.
There is no estimated time of reopening at this point in time.
South Pass is also closed Tuesday morning along with sections of I-80.
The latest in road closures, restrictions and advisories can be found here.