Coldest air of the season will be blowing in literally! Winds will be gusty through the start of Wednesday, & you combine winds of 15 to 30 mph with temperatures that will bottom out near 0 tonight & climb no higher than the upper single digits Tuesday, & it will feel like -15 to -30 region wide for a good chunk of tonight & Tuesday, hence the wind chill warning for all from 6pm this evening through 6pm Tuesday. Dangerous to say the least! Frostbite can happen in minutes with these types of wind chills & temps. Stay inside if you can tonight & Tuesday, if you can't bundle up & give yourself a little extra time to heat up the vehicle before heading into work.
As far as lake snows go...Significant snows of a foot or more in the most persistent snows will likely come off Lake Erie late today through Tuesday across South-Central Genesee, Wyoming & possibly Western Livingston counties. The rest of us will see limited lake snows with some squally weather at times late today & at times tonight, which should leave us with a coating to 3" or so tonight for many, including Rochester, & maybe another coating to an inch or so tomorrow.
The chill will begin to ease Wednesday & really let up late in the week & over the weekend we could be talking about some rain showers & 40s again! Stay tuned for updates on the cold, snow & eventual warm up this week.
Have a great night & do what you can to stay warm everyone!