729 WWHW40 PHFO 221729 WSWHFO URGENT - WINTER WEATHER MESSAGE National Weather Service Honolulu HI 729 AM HST Mon Jan 22 2018 HIZ028-230400- /O.CON.PHFO.WW.Y.0002.000000T0000Z-180123T0400Z/ Big Island Summits- 729 AM HST Mon Jan 22 2018 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM HST THIS EVENING... * WHAT...Mixed precipitation occurring. The ice will result in difficult travel conditions. Additional snow accumulations of up to two inches and ice accumulations of around one tenth are expected. * WHERE...Big Island Summits. * WHEN...Until 6 PM today. * ADDITIONAL DETAILS...Be prepared for reduced visibilities at times. 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. $$