A Flash Flood Watch is now in effect for the Big Island, Kaho‘olawe, Lāna‘i, Maui and Moloka‘i from this evening, Monday, Dec. 18, 2017, through late Wednesday night.

A slow-moving cold front will advance down the island chain tonight through Wednesday night.

Abundant moisture ahead of the front will result in periods of heavy showers and thunderstorms.

Excessive rainfall from heavy showers and thunderstorms could lead to flash flooding of streams and low-lying areas.

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A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is very dangerous. Never drive into areas where water covers the road.

Hikers and campers should pay close attention to the latest forecasts, warnings, and conditions. Stay away from creeks and streams, and strongly consider postponing your trip until better weather returns.

Monitor updated forecasts and be prepared to take action should Flash Flood Warnings be issued.