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A flash flood watch is in effect for the Big Island through Friday night.
A flash flood watch is in effect for the Big Island through Friday night.
Forecasters say a very moist air mass, together with a trough of low pressure in the middle atmosphere overhead, will continue to encourage locally heavy showers and thunderstorms to develop during the evening. The National Weather Service cautioned that recent rainfall will increase the risk for flash flooding.
A flash flood watch means that conditions may develop that lead to flash flooding. forecasters cautioned that it does not have to be raining heavily where you are for flash flooding to occur.