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]
23.08.2026 11:30 87 1.13 9.1
23.08.2026 11:20 88 1.22 9.1
23.08.2026 11:10 88 1.22 9
23.08.2026 11:00 89 1.31 9
23.08.2026 10:50 88 1.22 9
23.08.2026 10:40 88 1.22 8.9
23.08.2026 10:00 89 1.31 8.8
23.08.2026 09:00 89 1.31 8.7
23.08.2026 08:00 90 1.41 8.7
23.08.2026 07:00 90 1.41 8.8
23.08.2026 06:00 94 1.88 9
23.08.2026 05:00 92 1.63 9.1
23.08.2026 04:00 93 1.75 9.2
23.08.2026 03:00 94 1.88 9.3
23.08.2026 02:00 94 1.88 9.5
23.08.2026 01:00 95 2.01 9.6
23.08.2026 00:00 96 2.14 9.7
22.08.2026 23:00 98 2.44 9.9
22.08.2026 22:00 99 2.6 10
22.08.2026 21:00 101 2.94 10.1
22.08.2026 20:00 102 3.12 10.2
22.08.2026 19:00 104 3.5 10.3
22.08.2026 18:00 105 3.7 10.3
22.08.2026 17:00 105 3.7 10.5
22.08.2026 16:00 106 3.9 10.5
22.08.2026 15:00 107 4.1 10.4
22.08.2026 14:00 108 4.3 10.4
22.08.2026 13:00 108 4.3 10.4
22.08.2026 12:00 107 4.1 10.3
22.08.2026 11:00 109 4.51 10.3

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