and sparking new fears about what happens when the big thaw finally comes. these are pictures of the kankakee river in illinois. it s one of several waterways clogged with ice jams. when these ice jams break up, the force has the potential to send large chunks of ice and high water into people s homes. cnn meteorologist indra petersons is live in new york with more on this. good morning. good morning. we re still talking about this very cold temperature after we had warmed up. we saw a lot of melting and that s the reason we re seeing ice jams. we re cooling off again. take a look at the temperatures this morning. 41 below. that s what s it feels like right now in duluth. also feeling like just the teens on the east coast. this cold air expected to only spread further to the northeast by tomorrow. as far as how unusual this is, look at these temperatures. in the afternoon, the highs only expected to be in the single digits out toward chicago. that s 30 degrees where they should be th