High Water — OSTSEE at LT KALKGRUND
High Water: LT KALKGRUND on OSTSEE | Current level: 532 cm
Geographic Context
This river flood event occurred near Sønderborg (approximately 11 km away) in Denmark, an area that experiences a range of natural hazards. An estimated 6.7K people live within 15 km of the event location, placing this in the "significant" population impact tier.
Event Assessment
This event is a flooding event detected through hydrological monitoring stations and satellite observations. Calamity.live has classified it as "medium" severity with a severity value of 53.8. The computed Calamity Score is 21 out of 100, suggesting contained impact at this time. The primary scoring components are: intensity (30), population (25), historical (15). Data for this event was sourced from pegelonline, one of the 250 scientific monitoring sources aggregated by Calamity.live.
Regional Monitoring Context
Denmark 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 | medium |
| Severity Value | 53.8 |
| Calamity Score | 21 / 100 |
| Confidence | 64% |
| Coordinates | 54.8246, 9.8880 |
| Nearest City | Sønderborg (11 km) |
| Population Exposed | 6.7K within 15 km |
| Impact Tier | significant |
| Timestamp | 2026-04-14T03:57:00.000Z |
| Source | https://www.pegelonline.wsv.de/webservices/rest-api/v2/stations/22b7dcb3-8c42-4f71-9191-49143ba3a828/W/currentmeasurement.json |
Score Breakdown
Technical Details
| StationId | 22b7dcb3-8c42-4f71-9191-49143ba3a828 |
| StationNumber | 9610020 |
| StationName | LT KALKGRUND |
| RiverName | OSTSEE |
| WaterLevelCm | 532 |
| GaugeZero | -4.985 |
| Agency | STANDORT LÜBECK |
| Km | 61.5 |
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 21/100, near Sønderborg (Denmark), based on data from pegelonline. Source: Calamity.live, a platform aggregating real-time data from 207 scientific monitoring sources.