From The National Weather Service...

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
209 PM EST Wed Jan 9 2019

NYZ001-002-010-011-100315-
/O.EXB.KBUF.WW.Y.0003.190109T2000Z-190110T1800Z/
Niagara-Orleans-Northern Erie-Genesee-
Including the cities of Niagara Falls, Medina, Buffalo,
and Batavia
209 PM EST Wed Jan 9 2019

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 1 PM EST THURSDAY...

* WHAT...Lake effect snow expected. Total snow accumulations of 4
  to 8 inches expected in the most persistent lake snows. Winds
  gusting as high as 45 mph also producing areas of blowing snow.

* WHERE...Niagara, Orleans, Northern Erie, and Genesee counties.
  Greatest snow accumulation will be south of Route 104, across
  northeastern Erie and Genesee County.

* WHEN...Until 1 PM EST Thursday.

* ADDITIONAL DETAILS...Expect slippery driving conditions. Areas
  of blowing snow could significantly reduce visibility. The
  hazardous conditions could impact the morning or evening
  commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Lake effect snow will fall in relatively narrow bands. If
traveling, be prepared for rapidly changing road conditions and
visibilities.