National Weather Service United States Department of Commerce

A few areas Friday could see accumulating snow (<1"). The best potential lies across the afternoon hours and for places near, north and east of the Tri-Cities. A few more concentrated bands of snow (snow squalls?) could briefly drop visibilities in a handful of locations.
The High Wind Watch has been upgraded to a High Wind Warning, now in effect starting at 9PM tonight until 6PM Friday. Winds picking up overnight will blow between 30-40MPH with gusts as high as 45-60+ MPH Friday afternoon. In addition, some light accumulations of snow (<1") will be possible, primarily for locations north and east of the Tri-Cities.
A Fire Weather Watch for critical fire weather concerns remain in effect between Noon and 6PM Friday afternoon for counties mainly along and west of HWY-183. Winds will pick up to between 30-40MPH with gusts as high as 50-60 MPH. Relative humidity values for areas west of HWY-183 may fall as low as 20%. Any fires that start will become difficult to control, therefore outdoor burning is not advised.
Northwest winds picking up overnight tonight will blow between 30-40MPH with gusts as high as 45-60+ MPH for Friday afternoon. The strongest winds will generally distribute across northwest lying locations.
Temperatures will fall as low a 3-17 degrees Friday night into Saturday morning with wind chill values near and below zero degrees (to as low as -18 degrees).