616 WWHW40 PHFO 261709 WSWHFO URGENT - WINTER WEATHER MESSAGE National Weather Service Honolulu HI 709 AM HST Fri Feb 26 2021 ...WINTER WEATHER ADVISORY FOR MAUNA KEA AND MAUNA LOA SUMMITS... .A mid-level trough will linger near the islands for the next couple of days, bringing sub-freezing temperatures to the Big Island Summits. Additionally, the trough will destabilize the island atmosphere, and moisture moving in with the trade winds will occasionally extend above the Summits. This will lead to periods of freezing rain and snow showers the next couple of days and nights. HIZ028-270615- /O.NEW.PHFO.WW.Y.0007.210226T1709Z-210301T2200Z/ Big Island Summits- 709 AM HST Fri Feb 26 2021 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON HST MONDAY... * WHAT...Mixed precipitation, with periods of snow and freezing rain. * WHERE...Big Island Summits. * WHEN...Until noon 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. && $$ Birchard