PORTLAND -- Snow predicted for the Portland area and the Willamette Valley Wednesday morning turned into a bust, with a chance of flurries above 500 feet and warmer weather expected to bring showers throughout the day.

More: Portland Metro snow elevation chart

The National Weather Service issued a new Winter Weather Advisory that warned of snow above 500 in the metro area, ending at 10 a.m. Wednesday. KGWcrews sent to the Portland hills found little to no snowfall and mostly rain.

KGW meteorologist Nick Allard said the Columbia Gorge would still have frigid temperatures Wednesday.

Some districts based in higher elevations reported school delays and closures.

A high wind warning remained in place for the Oregon Coast through 10 p.m. Wednesday. A winter weather advisory for the Coast Range was to end at 10 a.m.

More: Latest KGW forecast

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Crews with the Portland Department of Transportation said Tuesday they were applying de-icer to some areas where it won't wash off. Plows and sanders were put on standby for overnight snow duty. Crews were also patrolling hills, bridges and overpasses that seem to always be trouble spots during snow storms.

It is not effective to apply anti-icer if it rains or in very wet snow as it simply washes off the road surface. Also, there must be at least an inch of snow for plows to be useful, explained Cheryl Kuck, with the Portland Bureau of Transportation.

Officials recommended that drivers check road conditions on TripCheck and by listening to local newscasts before they venture out.

Video:Snow on Oregon beaches

The snow significantly slowed the Tuesday morning commute and TriMet was reporting some delays on bus routes. Check:TriMet Alerts

On Mount Hood, a Winter Weather Advisory warns of steady snow showers from 4 a.m. to 4 p.m. Wednesday. Snow was expected to fall as low as 500 feet, with as much as 6 inches possible.

More:Heavy snow in Ore. Cascades

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