Wailuku Warnings, Watches and Advisories

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 Wailuku.

Use the Radar Maps link provided to understand the trajectory of a storm.

Flood Watch issued September 8 at 3:41PM HST until September 9 at 6:00PM HST by NWS Honolulu HI

A weak band of moisture just east of the Big Island will move west on Wednesday and may produce flooding on the Big Island during the afternoon. * WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...The Big Island. * WHEN...Through Wednesday 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... - Trailing moisture along the eastern flank of Hurricane Lowell will bring periods of heavy rain to the main Hawaiian islands through this afternoon.