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Mostly sunny with a shower
Wind and rain possible
Partly sunny with a shower
of sunlight, then sets at
of moolight, then sets at
Tropical Storm Guillermo will continue its path toward Hawaii in the coming days bringing large swells and enhanced rainfall to the islands. more >
Dec 20, 2012; 5:00 AM ET
The 540 line is often used by meteorologists to determine the chances of rain vs. snow.