The Electric Reliability Council of Texas, the state's power grid operator, is expected to pass its second test of the winter early next week, when another arctic front is anticipated to bring frigid temperatures to much of the state.

Models indicate the likelihood of another arctic blast early next week which will likely bring the coldest air so far this season and the coldest air in about one year! We will likely go under a "COLD WEATHER ADVISORY" for early next week.

Temperatures are expected to dip below freezing on Sunday night, according to the National Weather Service. As of Friday, Houston's forecast also called for a likelihood of snow on Monday night and Tuesday morning.

The Houston area is seeing an increasing chance that a mix of wintry precipitation—including snow—is headed in its direction. Space City Weather meteorologist Eric Berger said there is a growing possibility (about a 50-50 chance) of snow or sleet beginning next Monday night and Tuesday.

A chance of snow showers and sleet has emerged in the forecast. Here are five things we know so far about next week's freezing temperatures.