Mother Nature drenches Kauai, Oahu; Flash Flood Watch in effect - Hawaii News Now - KGMB and KHNL

Mother Nature drenches Kauai, Oahu; Flash Flood Watch in effect

A Connect Now photo showing rain squalls envelop Kaua'i's North Shore bringing heavy rain, wind and this rainbow. (Source: Johnnyc808) A Connect Now photo showing rain squalls envelop Kaua'i's North Shore bringing heavy rain, wind and this rainbow. (Source: Johnnyc808)

By Ben Gutierrez - bio | email

HONOLULU (HawaiiNewsNow) - Heavy rain drenched many parts of Kauai and Oahu Sunday, with forecasters predicting the possibility of more of the same through Tuesday.

Meantime, the National Weather Service said a Flash Flood Watch remained posted for all islands, except the Big Island of Hawaii, through Monday afternoon.

Flash Flood Warnings were issued for Kauai and Oahu Sunday morning as downpours began to cause flooding in streams and other low-lying areas.

Here are some of the more significant rainfall totals for the last 12 hours, ending at 11 a.m. Sunday, in inches:

Kauai:

  • Mount Waialeale  10.36
  • North Wailua Ditch  5.92
  • Hanalei  4.62
  • Wainiha  3.89
  • Hanalei River 3.73
  • Kilohana  3.12
  • Waialae  2.43
  • Mohihi Crossing  1.60
  • Wailua  1.52
  • Opaekaa Stream  1.35
  • Princeville Airport  1.23
  • Waiakoali (USGS)  1.14
  • Lihue Variety Station  1.01
  • Puu Opae  1.00

Oahu:

  • Oahu Forest National Wildlife Refuge  5.43
  • Punaluu Stream (USGS)  5.08
  • Kahuku Training Area  4.72
  • Kahana  4.36
  • Moanalua RG  3.98
  • Kahuku  3.87
  • Waihee Pump  3.34
  • Kii  3.31
  • Punaluu Pump  3.03
  • Ahuimanu Loop  2.83
  • Wilson Tunnel  2.44
  • Luluku  1.64
  • Nuuanu Upper  1.07
  • South Fork Kaukonahua  1.05
  • Manoa Lyon Arboretum  1.00

The wet weather is being caused by a an upper level low pressure system over the islands, which is causing unstable conditions. The low is forecast to move away to the northwest, but a deepening upper level trough nearby may keep our weather unsettled for the next couple of days.

The weather system may also bring snow to the upper levels of the summits of Mauna Loa and Mauna Kea on the Big Island of Hawaii. A Winter Weather Advisory is posted for those areas until 6 p.m. Sunday.

The Severe Weather Team at Hawaii News Now will keep you posted with the latest developments.

Follow the storm on our Interactive Weather Map.

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