As a result, since 2005 the website has called for rain when there is no measurable downpour less than one-hundredth of an inch nearly twice as often as it has shown no rain in its icons before rain occurs, according to the website Forecast Advisor, which tracks weather forecasts.

WSJ: Some Percentages Are Just Fair-Weather Friends

The worst of the rainfall is over, according to CNN's weather center, as cloudbursts are disappearing from the area's weather forecast.

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