Winter Weather Advisory issued March 20 at 11:24PM PDT until March 21 at 11:00PM PDT by NWS Portland OR

* WHAT…Snow above 4000 feet. Additional snow accumulations up to
10 inches.

* WHERE…South Washington Cascades and the Northern and Central
Cascades of Oregon.

* WHEN…Until 11 PM PDT Friday.

* IMPACTS…Roads, and especially bridges and overpasses, will
likely become slick and hazardous.

* ADDITIONAL DETAILS…For the advisory, locally higher amounts at
elevations above 5500 feet. Heaviest snow will fall after 11 AM
Friday.