501 WWHW40 PHFO 290506 WSWHFO URGENT - WINTER WEATHER MESSAGE National Weather Service Honolulu HI 706 PM HST Sun Mar 28 2021 ...WINTER WEATHER ADVISORY FOR THE BIG ISLAND SUMMITS... .An upper level trough west of the Hawaiian Islands will produce layered middle and upper level clouds over the highest summits of the Big Island through Monday afternoon. Expect periods of snow and icy roadways. HIZ028-291815- /O.NEW.PHFO.WW.Y.0010.210329T0506Z-210330T0400Z/ Big Island Summits- 706 PM HST Sun Mar 28 2021 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM HST MONDAY... * WHAT...Snow, freezing drizzle and freezing fog. Storm total snow accumulations of 1 to 2 inches. Winds gusting up to 60 mph. * WHERE...Big Island summits above 12,000 feet. * WHEN...Until 6 PM HST Monday. * IMPACTS...Plan on slippery road conditions. Snow showers and fog will significantly reduce visibility at times, with periods of zero visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory means that periods of snow, sleet, or freezing rain will cause travel difficulties. Be prepared for slippery roads and limited visibilities and use caution while driving. && $$ RCB