Rychnov nad Kněžnou, river Kněžná, flood warning profile category B, Surface water

Czech hydrometeorological institute


Hydrology comment

14.08.2026práce v korytě toku
current status
Measurement affected
Tendency : Steady state
river Kněžná
gauge Rychnov nad Kněžnou
category B
inclusion Hlásný profil
altitude 302.96 a.s.l.
region Královéhradecký kraj
basin number 1-02-01
municipality Rychnov nad Kněžnou
gauge operator ČHMÚ Hradec Králové
sub-basin Horní a střední Labe

Measured data

stage date and time stage [cm] flow [m3.s-1] temperature [°C]
18.08.2026 20:30 7 0.156  
18.08.2026 20:20 7 0.156  
18.08.2026 20:10 8 0.177  
18.08.2026 20:00 8 0.177  
18.08.2026 19:50 8 0.177  
18.08.2026 19:40 8 0.177  
18.08.2026 19:00 8 0.177  
18.08.2026 18:00 8 0.177  
18.08.2026 17:00 9 0.2  
18.08.2026 16:00 9 0.2  
18.08.2026 15:00 10 0.223  
18.08.2026 14:00 10 0.223  
18.08.2026 13:00 10 0.223  
18.08.2026 12:00 11 0.246  
18.08.2026 11:00 11 0.246  
18.08.2026 10:00 12 0.27  
18.08.2026 09:00 13 0.295  
18.08.2026 08:00 13 0.295  
18.08.2026 07:00 14 0.32  
18.08.2026 06:00 15 0.347  
18.08.2026 05:00 16 0.376  
18.08.2026 04:00 17 0.407  
18.08.2026 03:00 18 0.44  
18.08.2026 02:00 20 0.514  
18.08.2026 01:00 21 0.554  
18.08.2026 00:00 21 0.554  
17.08.2026 23:00 21 0.554  
17.08.2026 22:00 19 0.476  
17.08.2026 21:00 18 0.44  
17.08.2026 20:00 18 0.44  

Hydrology comment

14.08.2026práce v korytě toku

Flood warning limits

flood warning levels water stage
Drought 1 cm
Flood watch 100 cm
Flood warning 130 cm
Flooding 160 cm
Extreme flooding 311 cm

Legend - measurement affected

Measurement affected
The measurement is affected by ice phenomena

Valid for / Critical locality :

celý tok

© Český hydrometeorologický ústav