381 WWHW40 PHFO 290123 WSWHFO URGENT - WINTER WEATHER MESSAGE National Weather Service Honolulu HI 323 PM HST Fri Apr 28 2017 ...WINTER STORM WATCH FOR BIG ISLAND SUMMITS... .A potent low aloft will move over the islands this weekend, bringing the potential of winter weather to the Big Island summits. HIZ028-291430- /O.CON.PHFO.WS.A.0003.170429T1600Z-170501T0400Z/ Big Island Summits- 323 PM HST Fri Apr 28 2017 ...WINTER STORM WATCH REMAINS IN EFFECT FROM SATURDAY MORNING THROUGH SUNDAY AFTERNOON... * LOCATION...Big Island summits and upper slopes. * HAZARD TYPE...Heavy snow and icing. * ACCUMULATIONS...Snowfall up to 6 inches possible. * TIMING...Saturday through Sunday. * IMPACTS...Poor visibility and icy...snow covered roads. * WINDS...Southwest to west 20 to 40 mph. * VISIBILITIES...Less than 1/4 mile at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Watch means there is a potential for significant snow, sleet, or ice accumulations that may impact travel. Continue to monitor the latest forecasts. && $$ Birchard