del: 26/10/2026, 03:05
a: 26/10/2026, 23:30

A trough moving over the state should bring abundant tropical moisture and is expected to remain nearly stationary for a few days. Heavy rain and isolated thunderstorms are possible, potentially leading to flooding across all islands. * WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...All main Hawaiian Islands. * WHEN...From Tuesday morning through late Wednesday night. * 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... - Heavy showers and isolated thunderstorms with intense rain rates may develop Tuesday and continue through Wednesday evening as a trough moves over the state.

del: 25/10/2026, 03:57
a: 26/10/2026, 06:00

ESFHFO A significant pattern change is expected Monday night through at least Thursday as deep tropical moisture is brought north. A combination of surface lows and troughs will bring exceptionally moist air over the eastern end of the state beginning Monday night and extending to all islands Tuesday. Heavy rain and thunderstorms are possible throughout this period. Models have not converged on details yet, so exact locations, timing, and rainfall amounts are not certain. Please be prepared for periods of heavy rain this coming week. Keep up to date with the latest forecast information through the Internet (weather.gov/hawaii), local media, social media, or NOAA Weather Radio broadcasts. An updated outlook will be issued Sunday by 6 AM HST or sooner if necessary.

del: 25/10/2026, 04:13
a: 26/10/2026, 06:15

ESFHFO A significant pattern change is expected Monday night through at least Thursday as deep tropical moisture is brought north. A combination of surface lows and troughs will bring exceptionally moist air over the eastern end of the state beginning Monday night and extending to all islands Tuesday. Heavy rain and thunderstorms are possible throughout this period. Models have not converged on details yet, so exact locations, timing, and rainfall amounts are not certain. Please be prepared for periods of heavy rain this coming week. Keep up to date with the latest forecast information through the Internet (weather.gov/hawaii), local media, social media, or NOAA Weather Radio broadcasts. An updated outlook will be issued Sunday by 6 PM HST or sooner if necessary.

del: 25/10/2026, 15:08
a: 26/10/2026, 06:00

ESFHFO A significant pattern change is expected late Monday night through at least Thursday as deep tropical moisture is brought north. A combination of surface lows and troughs will bring exceptionally moist air over the state beginning late Monday night. Heavy rain and isolated thunderstorms are possible throughout this period. Models have not converged on details yet, so exact locations, timing, and rainfall amounts are not certain. Please be prepared for periods of heavy rain this coming week. Keep up to date with the latest forecast information through the Internet (weather.gov/hawaii), local media, social media, or NOAA Weather Radio broadcasts. An updated outlook will be issued MOnday by 6 AM HST or sooner if necessary.