Winter Weather Advisory

* WHAT...Snow. Additional snow accumulations 3 to 6 inches. Visibility as low as one half mile at times in steadier snowfall.

* WHERE...Northern Susitna Valley, including the Parks Highway corridor through Broad Pass.

* WHEN...Until 1 AM AKDT Saturday.

* IMPACTS...Travel could be very difficult, with low visibility and rapidly accumulating snow along the Parks Highway.

* ADDITIONAL DETAILS...The Winter Storm Warning has been downgraded to a Winter Weather Advisory. Periods of light to moderate snow will continue through early morning Saturday. Snow could mix with rain at times Friday afternoon as temperatures warm above freezing.