The News 12 Storm Watch Team is continuing to track the chance for a significant winter storm Sunday into Monday.

The storm is becoming more likely to cause moderate to major impacts on Long Island. In fact, this could easily be our highest single-storm snowfall in four years.

LI WEATHER LEADING UP TO THE STORM: Tonight, expect a couple of passing mixed snow and rain showers with temperatures rising through the night into the upper 30s. It will be breezy, too. Thursday will be the most comfortable day to plan and prepare for this weekend's storm chance. High temperatures will be in the 40s on Thursday with a mix of sun and clouds. A gusty breeze will still make it feel like the 30s, but it will feel better than the start of this week! Friday and Saturday will be dry, too, but another shot of Arctic air returns Friday evening and lasts into next week.

WHAT'S NEW: If you were hoping for the storm to miss us, that is looking unlikely. Confidence has dramatically increased today that Long Island will be impacted by this storm.

WHAT DO WE KNOW? Snow will develop on Long Island Sunday morning, picking up in intensity through the day. Air travel through the end of the week will start to become a nightmare due to the storm impacting the South and southeast before transitioning into a coastal storm, leading to major travel issues locally Sunday into Monday.

WHAT DON'T WE KNOW? While the storm track has trended more north, the exact track is still in question. Any deviation in the current track will dramatically change projected snow totals. We are also now looking at the possibility of mixing on Long Island with sleet, freezing rain and rain after starting as all snow.

WHEN WILL WE KNOW MORE? The track, potential totals and chance for any mixing should become clearer by Thursday. In fact, NOAA Hurricane Hunters have been flying into the developing pieces of this storm out west to help computer models get a better handle on the forecast. Tonight's computer model runs and the morning and afternoon computer model runs through the end of the week will have much better data to work with.

SO WHAT ABOUT SNOW TOTALS? Regardless of snow totals, please keep in mind that this storm will cause dangerous travel conditions. That said, plan for more than 6 inches of snow. Our "first call" snow map will be issued Thursday and there is a good chance that it starts off in the 6 to 12 inch range, with the chance for more than 12 inches of snow if there is no mixing on Long Island. We just need to see one or two more rounds of data to more confidently and responsibly make an official call on that. Of course, those snow totals will be adjusted more as newer information comes in through the end of the week and weekend.

NEWS 12 HAS YOU COVERED! Please check back with our hyperlocal weather updates morning, afternoon and night on-air, on social media and on the News 12 APP - we will have frequent weather updates for you with the newest and best information on Sunday's storm.

Have a great night!