(BIVN) – A Winter Weather Advisory is in effect for Big Island summits above 13,000 feet.

The National Weather Service in Honolulu says snow accumulation of 1 inch is expected on Mauna Kea and Mauna Loa. “Strong southwest winds will blow snow around,” forecasters say. “Along with overcast clouds and fog, visibilities may be significantly reduced at times.”

According to the National Weather Service:

An upper trough west of the state will funnel deep layered clouds across the Big Island over the next several days. As temperatures fall below freezing at the summit level, rain will transition to snow and bring moderate accumulations on roads that will make travel to the top of Mauna Kea and Mauna Loa hazardous through Tuesday morning.

The road to the summit of Mauna Kea is closed to the public at the Visitor Information Station, rangers say, “due to icy road conditions, snow, high humidity, below freezing temperatures and high winds.”

“Road and weather conditions will be monitored and this report will be updated as these conditions change,” rangers say.

The summit of Mauna Loa is also closed to backcountry hiking beyond Red Hill Cabin due to high wind and winter weather conditions, the National Park Service says.