309 WWHW40 PHFO 112320 WSWHFO URGENT - WINTER WEATHER MESSAGE National Weather Service Honolulu HI 120 PM HST Sun Apr 11 2021 ...WINTER WEATHER ADVISORY FOR THE HALEAKALA SUMMIT AND THE SUMMITS OF THE BIG ISLAND THROUGH THIS AFTERNOON... .A passing disturbance aloft is producing snow showers above 9,000 feet on Haleakala and the Big Island summits. Chances for snow will diminish late this afternoon and evening. HIZ022-028-120400- /O.NEW.PHFO.WW.Y.0011.210411T2320Z-210412T0400Z/ Haleakala Summit-Big Island Summits- 120 PM HST Sun Apr 11 2021 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM HST THIS EVENING... * WHAT...Snow. Additional snow accumulations of up to one inch. * WHERE...Haleakala Summit and Big Island Summits above 9,000 feet. * WHEN...Until 6 PM HST this evening. * IMPACTS...Plan on slippery road conditions. 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. && $$ Wroe