Flood Advisory — Hawaii in Hawaii County, Hawaii
Minor flooding is expected — not severe enough for a warning, but potentially inconvenient or hazardous for travel.
Current Status
🌊 Active: Flood Advisory
Flood Advisory issued August 15 at 8:18AM HST until August 15 at 11:15AM HST by NWS Honolulu HI
* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...The island of Hawaii in Hawaii County... * WHEN...Until 1115 AM HST. * IMPACTS...Minor flooding on roads, poor drainage areas, and in streams. * ADDITIONAL DETAILS... - At 815 AM HST, radar and rain gauges continued to indicate steady moderate showers falling at rates of 0.5 to 1.5 inch per hour over windward Big Island. Some rain bands could have locally higher rates, especially in the Kau and Puna Districts. Water levels in area streams are slowly rising. The showers are expected to increase in intensity as the morning progresses. Minor flooding is ongoing or expected to begin shortly in the advisory area. - Some locations that will experience flooding include... Hilo, Hawaiian Paradise Park, Kapaau, Honokaa, Volcano, Glenwood, Mountain View, Hawaii Volcanoes National Park, Wood Valley, Hawaiian Acres and Keaau.
Effective August 15, 2026 at 2:18 PM ET · Expires August 15, 2026 at 5:15 PM ET
Event Details
Event Type
Flood Advisory
Severity
minor
Issued By
NWS Honolulu HI
Expires
August 15, 2026 at 5:15 PM ET
Last Checked
9 hours ago
What To Do
📋 Official NWS Guidance
Stay away from streams, drainage ditches and low lying areas prone to flooding.
Other Active Alerts in Hawaii
Flood Advisory
Flash Flood Warning
Hydrologic Outlook
Hydrologic Outlook
Hydrologic Outlook
Hydrologic Outlook
Get Flood Advisory Alerts for Hawaii in Hawaii County
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Frequently Asked Questions
What does a Flood Advisory mean for Hawaii in Hawaii County, Hawaii?
Minor flooding is expected — not severe enough for a warning, but potentially inconvenient or hazardous for travel.
Is this Flood Advisory currently active?
Yes — this alert is active as of our last check (9 hours ago). It's set to expire August 15, 2026 at 5:15 PM ET.
How do I get notified about Flood Advisory alerts for Hawaii in Hawaii County?
Download StormCast free on Google Play and set Hawaii in Hawaii County, Hawaii as one of your monitored locations. StormCast checks the NWS feed continuously and pushes alerts like this directly to your phone — even with the screen off.