Provoz staré verze Hlásné a předpovědní povodňové služby (HPPS) na adrese https://hydro.chmi.cz/hppsoldv/ bude k 31.12.2026 ukončen.
Flood forecasting service
Czech Hydrometeorological Institute

Detail station Janov - Harrachov

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Water stage
 
Flow
River Mumlava
Gauge Janov - Harrachov
Category B
Basin number 1-05-01
Municipality Tanvald
Gauge operator ČHMÚ Praha
Flood warning limits
1. Level H = 160 [cm] Flood watch
2. Level H = 190 [cm] Flood warning
3. Level H = 250 [cm] Flooding
3. Level H = 291 [cm] Extreme flooding
Drought H = 78 [cm] Drought

Gauge metadata Janov - Harrachov
Measurement and forecast (data)
 
Date and time Stage [cm] Flow [m3s-1] Temperature [°C]
14.10.2026 01:20 80 0.562 4.9
14.10.2026 01:10 80 0.562 5
14.10.2026 01:00 80 0.562 4.9
14.10.2026 00:50 80 0.562 5
14.10.2026 00:40 80 0.562 5
14.10.2026 00:30 80 0.562 5
14.10.2026 00:00 80 0.562 5
13.10.2026 23:00 80 0.562 5
13.10.2026 22:00 80 0.562 5.1
13.10.2026 21:00 80 0.562 5.2
13.10.2026 20:00 80 0.562 5.3
13.10.2026 19:00 80 0.562 5.3
13.10.2026 18:00 80 0.562 5.3
13.10.2026 17:00 80 0.562 5.3
13.10.2026 16:00 81 0.635 5.1
13.10.2026 15:00 81 0.635 5
13.10.2026 14:00 81 0.635 4.7
13.10.2026 13:00 81 0.635 4.5
13.10.2026 12:00 81 0.635 4.3
13.10.2026 11:00 81 0.635 4.3
13.10.2026 10:00 82 0.712 4.3
13.10.2026 09:00 82 0.712 4.3
13.10.2026 08:00 82 0.712 4.4
13.10.2026 07:00 82 0.712 4.5
13.10.2026 06:00 82 0.712 4.6
13.10.2026 05:00 82 0.712 4.7
13.10.2026 04:00 83 0.79 4.7
13.10.2026 03:00 83 0.79 4.8
13.10.2026 02:00 83 0.79 4.9
13.10.2026 01:00 83 0.79 5