| 
| 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 |  
 |  
|  |  |  |  | 
| 
| Date and time | Stage [cm] | Flow [m3s-1] | Temperature [°C] |  
| 31.10.2025 03:20 | 109 | 4.51 | 3.6 |  
| 31.10.2025 03:10 | 109 | 4.51 | 3.6 |  
| 31.10.2025 03:00 | 110 | 4.72 | 3.6 |  
| 31.10.2025 02:50 | 110 | 4.72 | 3.6 |  
| 31.10.2025 02:40 | 111 | 4.93 | 3.6 |  
| 31.10.2025 02:30 | 110 | 4.72 | 3.6 |  
| 31.10.2025 02:20 | 112 | 5.15 | 3.6 |  
| 31.10.2025 02:00 | 110 | 4.72 | 3.6 |  
| 31.10.2025 01:00 | 111 | 4.93 | 3.7 |  
| 31.10.2025 00:00 | 113 | 5.37 | 3.7 |  
| 30.10.2025 23:00 | 113 | 5.37 | 3.7 |  
| 30.10.2025 22:00 | 115 | 5.81 | 3.8 |  
| 30.10.2025 21:00 | 116 | 6.04 | 3.9 |  
| 30.10.2025 20:00 | 119 | 6.74 | 4.1 |  
| 30.10.2025 19:00 | 119 | 6.74 | 4.2 |  
| 30.10.2025 18:00 | 122 | 7.47 | 4.3 |  
| 30.10.2025 17:00 | 124 | 7.97 | 4.4 |  
| 30.10.2025 16:00 | 126 | 8.49 | 4.6 |  
| 30.10.2025 15:00 | 123 | 7.72 | 4.8 |  
| 30.10.2025 14:00 | 124 | 7.97 | 4.9 |  
| 30.10.2025 13:00 | 118 | 6.51 | 4.9 |  
| 30.10.2025 12:00 | 114 | 5.59 | 4.9 |  
| 30.10.2025 11:00 | 111 | 4.93 | 4.8 |  
| 30.10.2025 10:00 | 110 | 4.72 | 4.7 |  
| 30.10.2025 09:00 | 110 | 4.72 | 4.6 |  
| 30.10.2025 08:00 | 111 | 4.93 | 4.5 |  
| 30.10.2025 07:00 | 111 | 4.93 | 4.3 |  
| 30.10.2025 06:00 | 112 | 5.15 | 4.3 |  
| 30.10.2025 05:00 | 111 | 4.93 | 4.3 |  
| 30.10.2025 04:00 | 112 | 5.15 | 4.4 |  
| 30.10.2025 03:00 | 113 | 5.37 | 4.4 |  |