Flash Flood Watch
Issued by NWS Honolulu, HI

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WGHW60 PHFO 171318
FFAHFO

Flood Watch
National Weather Service Honolulu HI
318 AM HST Sat Feb 17 2018

...FLASH FLOOD WATCH FOR THE BIG ISLAND AND MAUI FROM NOON
TODAY THROUGH MONDAY...

.Moisture along a dissipating front will remain stalled around
the Big Island and Maui, while a strong upper level trough
approaches from the northwest. As the upper level trough moves
over the state, heavy showers and thunderstorms will likely
develop around the eastern end of the island chain Saturday
afternoon. The threat of heavy rainfall will persist through the
Monday holiday, and this watch may need to be expanded westward
to additional islands by Sunday.

HIZ017>027-180230-
/O.CON.PHFO.FF.A.0003.180217T2200Z-180220T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Maui Windward West-Maui Leeward West-Maui Central Valley-
Windward Haleakala-Leeward Haleakala-Haleakala Summit-Kona-
South Big Island-Big Island North and East-Kohala-
Big Island Interior-
318 AM HST Sat Feb 17 2018

...FLASH FLOOD WATCH REMAINS IN EFFECT FROM NOON HST TODAY
THROUGH MONDAY AFTERNOON...

The Flash Flood Watch continues for

* Maui and the Big Island.

* From noon HST today through Monday afternoon

* Abundant low level moisture will remain over the eastern end
  of the island chain. As a strong upper level trough moves
  overhead on Saturday, heavy showers and thunderstorms will
  likely develop. The threat for flooding rainfall may spread
  westward to the rest of the state by Sunday.

* Due to high instability and light winds, heavy showers and
  thunderstorms will likely develop rapidly during the afternoon
  hours. Soils across much of the Big Island and parts of Maui
  are already saturated due to recent rains, which could lead to
  the faster onset of flash flooding.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Please monitor forecasts and be prepared to take action should
Flash Flood Warnings be issued.

&&

$$



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