Winter Advisory Tonight. In Hawaii?

Tonight, all over the continental U.S. and Alaska, there are no winter storms or winter storm advisories..
There is one exception to this. Hawaii.
From the National Weather Service: URGENT - WINTER WEATHER MESSAGENATIONAL WEATHER SERVICE HONOLULU HI353 PM HST WED MAY 4 2011...MORE ICY ROAD CONDITIONS EXPECTED TONIGHT...HIZ028-051500-/O.NEW.PHFO.WW.Y.0012.110505T0153Z-110505T1600Z/BIG ISLAND SUMMITS-INCLUDING...MAUNA LOA AND MAUNA KEA ABOVE 8000 FEET353 PM HST WED MAY 4 2011...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM HST THURSDAY...THE NATIONAL WEATHER SERVICE IN HONOLULU HAS ISSUED A WINTERWEATHER ADVISORY FOR ICE...WHICH IS IN EFFECT UNTIL 6 AM HSTTHURSDAY.WITH RAIN CREATING WET ROADS THIS AFTERNOON...FREEZINGTEMPERATURES TONIGHT WILL LIKELY RESULT IN ICING OF THE ROADWAYS.ALSO...FREEZING RAIN WILL BE POSSIBLE AS THE ATMOSPHERE REMAINSMOIST AND UNSTABLE.PRECAUTIONARY/PREPAREDNESS ACTIONS...A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...ORFREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FORSLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILEDRIVING
http://forecast.weather.gov/wwamap/wwatxtget.php?cwa=usa&wwa=Winter%20Weather%20Advisory

Who would have thought that Hawaii is having winter weather advisory tonight while the rest of the U.S. is not.