Janov - Harrachov, river Mumlava, flood warning profile category B, Surface water

Czech hydrometeorological institute


current status
Mean stage
Tendency : Steady state
river Mumlava
gauge Janov - Harrachov
category B
inclusion Hlásný profil
altitude 580.65 a.s.l.
region Liberecký kraj
basin number 1-05-01
municipality Tanvald
gauge operator ČHMÚ Praha
sub-basin Horní a střední Labe

Measured data

stage date and time stage [cm] flow [m3.s-1] temperature [°C]
06.07.2026 11:50 83 0.79 10.4
06.07.2026 11:40 82 0.712 10.4
06.07.2026 11:30 82 0.712 10.4
06.07.2026 11:20 82 0.712 10.4
06.07.2026 11:10 82 0.712 10.3
06.07.2026 11:00 82 0.712 10.3
06.07.2026 10:00 82 0.712 10.2
06.07.2026 09:00 83 0.79 10.2
06.07.2026 08:00 83 0.79 10.2
06.07.2026 07:00 83 0.79 10.2
06.07.2026 06:00 83 0.79 10.3
06.07.2026 05:00 83 0.79 10.3
06.07.2026 04:00 83 0.79 10.4
06.07.2026 03:00 84 0.871 10.5
06.07.2026 02:00 84 0.871 10.6
06.07.2026 01:00 84 0.871 10.6
06.07.2026 00:00 85 0.954 10.8
05.07.2026 23:00 85 0.954 10.9
05.07.2026 22:00 85 0.954 11
05.07.2026 21:00 85 0.954 11.2
05.07.2026 20:00 85 0.954 11.3
05.07.2026 19:00 84 0.871 11.4
05.07.2026 18:00 84 0.871 11.4
05.07.2026 17:00 83 0.79 11.3
05.07.2026 16:00 83 0.79 11.2
05.07.2026 15:00 82 0.712 11
05.07.2026 14:00 82 0.712 10.8
05.07.2026 13:00 81 0.635 10.6
05.07.2026 12:00 81 0.635 10.5

Flood warning limits

flood warning levels water stage
Drought 78 cm
Flood watch 160 cm
Flood warning 190 cm
Flooding 250 cm
Extreme flooding 291 cm

Legend - measurement affected

Measurement affected
The measurement is affected by ice phenomena

© Český hydrometeorologický ústav