State: HITotal alerts: 1Updated: Oct 24, 2026 5:20pm HST
Hydrologic Outlook
Area Hawaii in Hawaii, HI; Oahu in Honolulu, HI; Kauai, HI; Maui, HI
Hydrologic Outlook issued October 24 at 3:10PM HST by NWS Honolulu HI
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.
SAFETY and DATA MESSAGE
When a severe thunderstorm warning is issued, the storm may produce damaging winds, large hail, dangerous lightning, and heavy rain. In some cases, heavy rainfall produced by a severe storm can also lead to flash flooding. Do not drive vehicles through flooded areas. The water depth or fast flowing water/mud/debris from a flash flood will make road conditions unsafe. Do not rely soley on data presented here or other third-party websites - always check your official national and local weather service agency website, socials, radio and/or TV stations for making critical decisions related to weather events.
Please carefully read each posted Warning and Alert as it relates to the area(s) being affected. We may provide a wider range of issued severe weather warnings for surrounding cities and counties, so some alerts may not directly impact this location. This is done to help with preparing for severe weather that may overlap or be heading towards Kamuela.
Use the Radar Maps link provided to understand the trajectory of a storm.
For more official information about severe storms and how to stay safe, visit the National Weather Service's Severe Thunderstorm Safety page. We encourage you to also monitor Excessive Rainfall Forecasts on their Weather Prediction Center website.