An ice storm warning is in effect until Wednesday morning for parts of northern Mississippi.
That area includes the cities of Clarksdale, Corinth, Oxford and Tunica.
Other parts of the Mississippi Delta were under an ice storm warning until Tuesday at 6 p.m., but forecasters say it's possible it could be extended.
Daniel Lamb, a meteorologist with the National Weather Service in Jackson, says ice has accumulated on bridges and some roads.
Numerous public schools in north Mississippi and the University of Mississippi were closing Tuesday because of the storms.
Late Monday night, Gov. Phil Bryant declared a state of emergency in several counties. Bryant's office said at least 45 counties had reported being affected by the storms.