The winter storm besetting much of the United States so far has resulted in at least six deaths and has caused the cancellation of more than 1,000 flights, authorities announced Wednesday.

The first death occurred on Tuesday in Houston, when strong winds blew over a tree that fell on a man.

The other five fatalities occurred in road accidents in Oklahoma, Arkansas and Louisiana.

The storm, which on Tuesday clobbered many of the southern states, is moving toward New England.

Snow and ice on Wednesday morning covered highways in southern Illinois and southern Indiana, and the nation’s capital woke to a light snowfall.

But the biggest accumulations of snow will occur in Indiana and Ohio, where there is already more than 30 centimeters (1 foot) on the ground, and it has started to snow in Pennsylvania and Virginia, as well as in western New York state.

Also slated to be affected will be Georgia and the Carolinas.

Thirty-four tornados were reported in Texas, Louisiana, Mississippi and Alabama on Christmas Day, according to the National Weather Service.

Strong winds also left some 71,000 customers without electricity on the evening of Christmas Day.