The cool air will cause some issues for the Southern Tier today.

According to the National Weather Service in Buffalo, there will be a Winter Weather Advisory in place until 6 pm tonight.

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST THIS
EVENING...

* WHAT...Snow. Additional snow accumulations of 1 to 3 inches with
  the greatest snow amounts over the higher terrain.

* WHERE...Wyoming, Cattaraugus, and Allegany counties.

* WHEN...Until 6 PM EST this evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions. The
  hazardous conditions will impact the morning commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Periods of snow will result in snow covered roads and limited
visibilities. Slow down and use caution while driving.