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

Czech hydrometeorological institute


current status
Mean stage
Tendency : Decreases
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]
22.08.2026 10:00 110 4.72 10.2
22.08.2026 09:50 111 4.93 10.2
22.08.2026 09:40 110 4.72 10.2
22.08.2026 09:30 111 4.93 10.2
22.08.2026 09:20 112 5.15 10.2
22.08.2026 09:10 112 5.15 10.2
22.08.2026 09:00 113 5.37 10.2
22.08.2026 08:00 118 6.51 10.3
22.08.2026 07:00 121 7.23 10.3
22.08.2026 06:00 128 9.01 10.4
22.08.2026 05:00 134 10.7 10.5
22.08.2026 04:00 142 13.3 10.6
22.08.2026 03:00 152 17.1 10.7
22.08.2026 02:00 159 20 10.9
22.08.2026 01:00 149 15.9 11.3
22.08.2026 00:00 120 6.98 12.1
21.08.2026 23:00 92 1.63 12.2
21.08.2026 22:00 84 0.871 12.4
21.08.2026 21:00 79 0.49 12.5
21.08.2026 20:00 77 0.358 12.6
21.08.2026 19:00 77 0.358 12.7
21.08.2026 18:00 77 0.358 12.7
21.08.2026 17:00 77 0.358 12.7
21.08.2026 16:00 77 0.358 12.7
21.08.2026 15:00 79 0.49 12.6
21.08.2026 14:00 78 0.421 12.4
21.08.2026 13:00 78 0.421 12.1
21.08.2026 12:00 78 0.421 11.8
21.08.2026 11:00 78 0.421 11.7
21.08.2026 10:00 78 0.421 11.6

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