NEW YORK — Temperatures will continue their rollercoaster ride. After dealing with wind chills around zero on Tuesday morning, the air temperature soared into the upper 40s on Thursday. Starting on Friday, temperatures will start to take a big tumble. By Saturday morning, the wind chill could be well below 0 in the city. Wind Chill Warnings and advisories have been issued for areas just to the north of the city. Across many sections of upstate New York, we may see wind chills down to -20 degrees or colder.
As for Thursday night, clouds have increased due to a storm passing well off the coast. The East End of Long Island may get clipped with some rain, but it should remain dry for the rest of the region. Temperatures will be in the upper 30s.
On Friday, temperatures may climb into the lower 40s in the morning, but an arctic cold front pass through the region. No precipitation is expected, but a 30 mph gust from the north will develop and bring down the temperatures quickly through the latter part of the day. By late Friday night, we may see temperatures dropping into the lower teens, with wind chills expected to be zero to 5 below.
The brutal chill bottoms out on Saturday. The actual air temperature may not even get out of the teens at all. Winds will continue to gust making it feel like the single digits all day long.
All eyes then turn to the development of a coastal storm that will arrive late on Sunday. As the arctic air will still be around, this storm will start out with snow across the region, however, the latest forecast models indicate it will track either along the coast or inland. This will allow warmer air to filter into the region on Sunday night. As a result, coastal sections will probably change over to a mix, then rain. Inland sections look to be mainly a snow event, but sleet may mix in as well for a period.
As the storm departs on Monday afternoon, there is a chance that cold air will wrap around the storm allowing for a brief changeover back to snow before it tapers off.
As for accumulations, that remains to be determined as any small shift in the track will result in a big change in terms of amounts.