Watches, Warnings, and Advisories

Current Watches, Warnings and Advisories for Windward Haleakala (HIZ020) Hawaii Issued by the National Weather Service


Flash Flood Watch Flash Flood Watch - Windward Haleakala (Hawaii)

Updated:Thu, 19-Apr-2018 3:53am HST
Effective:Thu, 19-Apr-2018 6:00am HST
Expires:Fri, 20-Apr-2018 6:00pm HST

Areas affected: Big Island Interior; Big Island North and East; Central Oahu; Haleakala Summit; Kahoolawe; Kauai Leeward; Kauai Mountains; Kauai Windward; Kohala; Kona; Lanai Makai; Lanai Mauka; Leeward Haleakala; Maui Central Valley; Maui Leeward West; Maui Windward West; Molokai Leeward; Molokai Windward; Niihau; Oahu Koolau; Oahu North Shore; Oahu South Shore; Olomana; South Big Island; Waianae Coast; Waianae Mountains; Windward Haleakala
Instructions: A flash flood watch means that conditions may develop that lead to flash flooding. Flash flooding is very dangerous. Monitor the forecast and be prepared to take action if you see rising water or if flash flood warnings are issued.

Message summary: ...flash flood watch remains in effect through friday afternoon...
The flash flood watch continues for
* the entire state of hawaii.
* through 6 pm friday.
* the remnants of an old front lingering across the state in combination with an upper level trough moving overhead, will bring the threat for heavy rainfall and flash flooding. The heaviest rainfall is expected to fall from oahu eastward to the big island, particularly in windward areas. Even though widespread heavy rainfall is not expected on kauai, given the high levels of saturation from recent rainfall, any additional moderate rain falling for an extended period of time could quickly result in flooding problems.
* rapidly rising water levels may occur on area streams and significant flooding may occur in low lying and poor drainage areas.
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Source: NWS Watches, Warnings or Advisories for zone HIZ020

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