342 WWHW40 PHFO 291352 WSWHFO URGENT - WINTER WEATHER MESSAGE National Weather Service Honolulu HI 352 AM HST Wed Nov 29 2017 HIZ028-300400- /O.EXT.PHFO.WW.Y.0006.000000T0000Z-171130T1600Z/ Big Island Summits- 352 AM HST Wed Nov 29 2017 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 6 AM HST THURSDAY... * WHAT...Periods of snow and rain will continue, with the more intense precipitation falling in the form of snow. Additional snow accumulations of 2 to 4 inches are expected. * WHERE...Big Island Summits. * WHEN...Until 6 AM Thursday. * ADDITIONAL DETAILS...Be prepared for reduced visibilities at times. Slushy wet snow will result in slippery road conditions at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause travel difficulties. Be prepared for snow covered roads and limited visibilities, and use extreme caution while driving. $$