Pacific tsunami warning recedes; Tonga covered by ash cloud

The tsunami threat throughout the Pacific from a huge underwater volcanic eruption has begun to recede, though the massive ash cloud covering Tonga is preventing surveillance flights from New Zealand to assess the extent of damage.

What is a tsunami and what causes them?

All coastlines around the world are vulnerable to tsunamis, so it's important to know your community's hazard and evacuation plans in case they're needed.

Winter Classic in Minnesota could be coldest game in NHL history

The NHL Winter Classic at Target Field in Minneapolis could be the coldest game in NHL history, with a subzero temperature and wind chill expected at the 6PM puck drop. It's so cold in Minnesota the NHL is actually warming the ice for the Winter Classic to get closer to the optimal surface temperature of 22 degrees.

Temps to tumble Tuesday

Shovel quickly Tuesday evening as the MUCH colder air will arrive in the Twin Cities with tumbling temps through the overnight leading to wind chills well below zero to start Wednesday.