326 WWHW40 PHFO 281316 WSWHFO URGENT - WINTER WEATHER MESSAGE National Weather Service Honolulu HI 316 AM HST Sun Feb 28 2021 ...WINTER WEATHER ADVISORY FOR MAUNA KEA AND MAUNA LOA SUMMITS... .A trough aloft will bring sub-freezing temperatures to the Big Island Summits while moisture moving in with the trade winds will occasionally extend above the Summits. This will lead to periods of snow and freezing rain or drizzle through early Monday morning. HIZ028-010400- /O.EXT.PHFO.WW.Y.0007.000000T0000Z-210301T1600Z/ Big Island Summits- 316 AM HST Sun Feb 28 2021 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 6 AM HST MONDAY... * WHAT...Wintry mix of precipitation, with periods of snow and freezing rain or drizzle. * WHERE...Big Island Summits above 11,000 feet. * WHEN...Until 6 AM HST Monday. * IMPACTS...Travel could be very difficult as roadways will occasionally be covered with ice. 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. && $$