548
WGHW60 PHFO 080123
FFAHFO

Flood Watch
National Weather Service Honolulu HI
323 PM HST Mon Sep 7 2026

.Moisture along the eastern flank of Hurricane Lowell will bring
periods of heavy rain to the main Hawaiian Islands through Tuesday.

HIZ006-007-009>011-015>018-022-023-026>028-032>054-081530-
/O.CON.PHFO.FA.A.0011.000000T0000Z-260909T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Waianae Coast-Oahu North Shore-Olomana-Central Oahu-Waianae
Mountains-Lanai Mauka-Kahoolawe-Maui Windward West-Maui Leeward
West-Haleakala Summit-Kona-Kohala-Big Island Interior-Big Island
Summits-East Honolulu-Honolulu Metro-Ewa Plain-Koolau Windward-
Koolau Leeward-Molokai Windward-Molokai Southeast-Molokai North-
Molokai West-Molokai Leeward South-Lanai Windward-Lanai Leeward-
Lanai South-Maui Central Valley North-Maui Central Valley South-
Windward Haleakala-Kipahulu-South Maui/Upcountry-South Haleakala-
Big Island South-Big Island Southeast-Big Island East-Big Island
North-
323 PM HST Mon Sep 7 2026

...FLOOD WATCH REMAINS IN EFFECT THROUGH TUESDAY AFTERNOON...

* WHAT...Flash flooding caused by excessive rainfall continues to be
  possible.

* WHERE...Oahu, Maui County, Big Island

* WHEN...Through Tuesday afternoon.

* IMPACTS...Flood prone roads and other low lying areas may be closed
  due to elevated runoff and overflowing streams. Urban areas may
  receive more significant flooding and property damage due to rapid
  runoff.

* ADDITIONAL DETAILS...
  - Moisture along the eastern flank of Hurricane Lowell will bring
    periods of heavy rain to the main Hawaiian islands through
    Tuesday.
  - Maui, Lanai, Molokai, Oahu, The Big Island and Kahoolawe.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

HIZ001-003-004-029>031-081530-
/O.CON.PHFO.FA.A.0011.000000T0000Z-260909T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Niihau-Kauai Southwest-Kauai Mountains-Kauai North-Kauai East-
Kauai South-
323 PM HST Mon Sep 7 2026

...FLOOD WATCH REMAINS IN EFFECT THROUGH TUESDAY AFTERNOON...

* WHAT...Flash flooding caused by excessive rainfall continues to be
  possible.

* WHERE...Kauai and Niihau.

* WHEN...Through Tuesday afternoon.

* IMPACTS...Significant flooding may occur due to the overflow of
  streams and drainages. Roads in several areas may be closed, along
  with property damage in urban or low lying spots due to runoff.
  Landslides may also occur in areas with steep terrain.

* ADDITIONAL DETAILS...
  - As the center of Hurricane Lowell passes west of the islands,
    deep moisture associated with its inner rainbands will spread
    across Kauai and Niihau where significant rainfall has already
    fallen. These additional periods of heavy rain can quickly lead
    to additional flash flooding.
  - Kauai and Niihau.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

Tsamous