303 WWHW40 PHFO 271331 WSWHFO URGENT - WINTER WEATHER MESSAGE National Weather Service Honolulu HI 331 AM HST Mon Feb 27 2017 ...WINTER STORM WATCH FOR BIG ISLAND SUMMITS ABOVE 12500 FEET... .An upper level trough northwest of the state will destabilize the atmosphere and allow deep tropical moisture to spread over the islands early this week. The highest elevations on the Big Island will have the potential to receive heavy snow accumulations, especially from tonight through Tuesday night. HIZ028-280245- /O.CON.PHFO.WS.A.0001.170228T0400Z-170301T1600Z/ Big Island Summits- 331 AM HST Mon Feb 27 2017 ...WINTER STORM WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH LATE TUESDAY NIGHT... * LOCATION...Big Island summits above 12500 feet elevation. * HAZARD TYPE...Heavy snow. * ACCUMULATIONS...6 inches or more of snowfall possible. * TIMING...Tonight through Tuesday night. * IMPACTS...Poor visibility and slippery roads. * WINDS...South 10 to 15 mph with higher gusts. * VISIBILITIES...Less than 1/4 mile in clouds and precipitation. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Watch means there is a potential for significant snow, sleet, or ice accumulations that may adversely impact travel. Continue to monitor the latest forecasts. && $$ Houston