688 WWHW40 PHFO 241309 WSWHFO URGENT - WINTER WEATHER MESSAGE National Weather Service Honolulu HI 309 AM HST Sun Jan 24 2021 ...HEAVY SNOW POSSIBLE FOR MAUNA KEA AND MAUNA LOA... .Very moist air and a trough aloft will combine to produce periods of heavy snow between tonight and late Tuesday night. HIZ028-250215- /O.NEW.PHFO.WS.A.0001.210125T0400Z-210127T0400Z/ Big Island Summits- 309 AM HST Sun Jan 24 2021 ...WINTER STORM WATCH IN EFFECT FROM THIS EVENING THROUGH TUESDAY AFTERNOON... * WHAT...Heavy snow possible. Total snow accumulations over 12 inches possible. Winds could gust as high as 40 mph. * WHERE...Summits of Mauna Kea and Mauna Loa above 11500 feet. * WHEN...From this evening through Tuesday afternoon. * IMPACTS...Travel could be very difficult or impossible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Watch means there is potential for significant snow or ice accumulations. If you are planning travel to the summits, monitor the latest forecasts and consider postponing your trip until the weather improves. && $$ Donaldson