580 WWHW40 PHFO 211341 WSWHFO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE HONOLULU HI 341 AM HST TUE DEC 21 2010 ...WINTER WEATHER WILL CONTINUE OVER BIG ISLAND SUMMITS THROUGH TONIGHT... .LINGERING MOISTURE WILL CONTINUE TO BRING LIGHT SNOW...SLEET AND FREEZING FOG TO THE BIG ISLAND SUMMITS. HIZ028-220245- /O.EXT.PHFO.WW.Y.0005.000000T0000Z-101222T1600Z/ BIG ISLAND SUMMITS- INCLUDING...MAUNA LOA AND MAUNA KEA ABOVE 8000 FEET 341 AM HST TUE DEC 21 2010 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 6 AM HST WEDNESDAY... THE WINTER WEATHER ADVISORY IS NOW IN EFFECT UNTIL 6 AM HST WEDNESDAY. MOIST AIR MOVING ACROSS THE BIG ISLAND WILL RESULT IN A COMBINATION OF SLEET...FREEZING FOG AND LIGHT SNOW THROUGH EARLY WEDNESDAY MORNING. SOME AREAS MAY GET LIGHT ICING ON ROADS AND STRUCTURES DUE TO SATURATED CONDITIONS AND PARTIAL MELTING AND REFREEZING OF SNOW. 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. && $$ CRAIG