News

Flash Flood Watch in Effect for Hawai‘i Island

November 27, 2017, 7:38 AM HST
* Updated November 27, 12:26 PM
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The National Weather Service issued a Flash Flood Watch at 3:29 a.m. HST on Monday, Nov. 27, 2017.

The Flash Flood Watch is in effect from this evening through Tuesday afternoon for the Big Island and Maui.

Deep moisture will interact with an upper level disturbance to bring periods of rain, heavy at times, and a chance of thunderstorms.

The most persistent rain and highest chance for flash flooding will be over windward and interior sections of the Big Island and Maui.

A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is very dangerous.

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Due to the Flash Flood Watch, the following advisories are in effect:

  • Be on the alert for conditions that may lead to flooding in streams, roads, and low lying areas.
  • Be aware that road closures may occur without notice.
  • Heavy rain and snow are expected for the summits.
  • Where possible, limit travel on roadways during this period.
  • Your utilities of power and phones may be interrupted.
  • If lightning threatens your area, the safest place to be is indoors.
  • Should power outages occur, be on the alert for non-operable traffic signals. Treat flashing traffic lights as a four-way stop.
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Monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

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