Major Flooding — BOCA RES NR TRUCKEE CA, CA
Flood Impact Statement from National Weather Service (CNRFC) NWS ID: BCVC1 "Top of dead storage; top elevation of outlet works. 240 acre-feet." | Gage height: 5581.10 ft | Ref. point: 5521.00 ft
Geographic Context
This river flood event occurred near Truckee (approximately 10 km away) in United States, where river systems, coastal storm surge, and flash flooding each present distinct hazard profiles. An estimated 176.0K people live within 50 km of the event location, placing this in the "severe" population impact tier.
Event Assessment
This event is a major_flooding flooding event, with water levels exceeding established thresholds for the affected waterways. Calamity.live has classified it as "critical" severity with a severity value of 90. The computed Calamity Score is 63 out of 100, reflecting a moderate-impact event. The primary scoring components are: intensity (85), historical (80), population (70). 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 | critical |
| Severity Value | 90 |
| Calamity Score | 63 / 100 |
| Confidence | 70% |
| Coordinates | 39.3888, -120.0964 |
| Nearest City | Truckee (10 km) |
| Population Exposed | 176.0K within 50 km |
| Impact Tier | severe |
| Timestamp | 2026-03-30T14:02:28.291Z |
| Source | https://waterdata.usgs.gov/monitoring-location/10344490/ |
Score Breakdown
Technical Details
| SiteNo | 10344490 |
| StationName | BOCA RES NR TRUCKEE CA |
| FloodCategory | major_flooding |
| GageHeight | 5581.1 |
| RpElevation | 5521 |
| RpName | Outlet Works |
| NwsId | BCVC1 |
| StateCode | CA |
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 63/100, near Truckee (United States), based on data from nwis. Source: Calamity.live, a platform aggregating real-time data from 207 scientific monitoring sources.