Moderate Flooding — West Wailuaiki Stream near Keanae, Maui, HI, HI
Flood Impact Statement from National Weather Service (APRFC) NWS ID: WWKH1 "Indirect indicator of possible flooding along the Hana Hwy from Keanae to Nahiku." | Gage height: 12.30 ft | Ref. point: 10.00 ft
Geographic Context
This river flood event occurred near Kīhei (approximately 34 km away) in United States, where river systems, coastal storm surge, and flash flooding each present distinct hazard profiles.
Event Assessment
This event is a moderate_flooding flooding event, with water levels exceeding established thresholds for the affected waterways. Calamity.live has classified it as "high" severity with a severity value of 70. The computed Calamity Score is 32 out of 100, suggesting contained impact at this time. The primary scoring components are: historical (80), intensity (60). Data for this event was sourced from nwis, one of the 250 scientific monitoring sources aggregated by Calamity.live.
Regional Monitoring Context
United States has a documented history of river flood events. Monitoring for river flood events in the region relies on a combination of ground-based sensors, satellite remote sensing, and official reporting from national agencies. The frequency and severity of such events are tracked over time to support risk assessment and emergency preparedness.
Event Data
| Type | River Flood |
| Severity | high |
| Severity Value | 70 |
| Calamity Score | 32 / 100 |
| Confidence | 49% |
| Coordinates | 20.8355, -156.1373 |
| Nearest City | Kīhei (34 km) |
| Impact Tier | minor |
| Timestamp | 2026-04-15T01:09:16.780Z |
| Source | https://waterdata.usgs.gov/monitoring-location/16518000/ |
Score Breakdown
Technical Details
| SiteNo | 16518000 |
| StationName | West Wailuaiki Stream near Keanae, Maui, HI |
| FloodCategory | moderate_flooding |
| GageHeight | 12.3 |
| RpElevation | 10 |
| RpName | ROAD |
| 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.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.
Calamity.live data shows a river flood event with CalamityScore 32/100, near Kīhei (United States), based on data from nwis. Source: Calamity.live, a platform aggregating real-time data from 207 scientific monitoring sources.