River Floods in United States
Right now
The most recent data we hold from USGS Water Services arrived 51 minutes ago, and this point is in it.
Nothing else has been detected within 20 km in the last 24 hours.
Reported by USGS Water Services today.
It is one of only 3 we have recorded within 20 km of this point since 17 August 2026. The last comparable one was on 17 August 2026.
What the source measured
USGS Water Services reported: Flood Impact Statement from National Weather Service (APRFC) NWS ID: WSFH1 "Flows at or above a stage of 15 ft may be an indirect indicator of flooding along the lower reaches of Wailua River that can impact the Fern Grotto tourist attraction, and boating/kayaking operations. Inundation may occur...
This is the highest gauge height we have recorded at this point, over 10 readings since 7 September 2026 — the previous range was 17.77 ft to 18.43 ft.
How we know
One source: USGS Water Services. Not yet confirmed by a second, independent source.
Our own score for this event is 16 out of 100, at 49 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | River Floods |
| Severity | Medium |
| Calamity Score (ours) | 16 / 100 |
| Our confidence | 49% |
| Coordinates | 22.0396, -159.3591 |
| Nearest City | Schofield Barracks (146 km) |
| Impact Tier | minor |
| Timestamp | 2026-09-07T21:57:31.563Z |
| Source | https://waterdata.usgs.gov/monitoring-location/16060000/ |
Score Breakdown
Technical Details
| SiteNo | 16060000 |
| StationName | SF Wailua River nr Lihue, Kauai, HI |
| FloodCategory | minor_flooding |
| GageHeight | 18.43 |
| RpElevation | 15 |
| RpName | Fern Grotto |
| NwsId | WSFH1 |
| StateCode | HI |
Safety Information
During flooding: never walk, swim, or drive through floodwaters. Six inches of moving water can knock you down, and one foot of water can sweep away a vehicle. Move to higher ground if waters rise. After flooding, avoid contact with floodwater which may contain sewage, chemicals, or debris. Follow local emergency service guidance.
Series begins 8 March 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.
Want to know when something happens in this area?
Calamity.live data shows a river flood event with CalamityScore 16/100 (United States), based on data from nwis. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.