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]
20.04.2026 15:10 91 1.52 3.2
20.04.2026 15:00 91 1.52 3.2
20.04.2026 14:50 91 1.52 3.2
20.04.2026 14:40 91 1.52 3.2
20.04.2026 14:30 91 1.52 3.2
20.04.2026 14:20 91 1.52 3.2
20.04.2026 14:00 91 1.52 3.1
20.04.2026 13:00 92 1.63 3.1
20.04.2026 12:00 93 1.75 2.9
20.04.2026 11:00 92 1.63 2.9
20.04.2026 10:00 92 1.63 2.8
20.04.2026 09:00 93 1.75 2.8
20.04.2026 08:00 92 1.63 2.8
20.04.2026 07:00 93 1.75 2.8
20.04.2026 06:00 93 1.75 2.9
20.04.2026 05:00 93 1.75 3
20.04.2026 04:00 95 2.01 3.1
20.04.2026 03:00 96 2.14 3.3
20.04.2026 02:00 96 2.14 3.4
20.04.2026 01:00 97 2.29 3.6
20.04.2026 00:00 94 1.88 4
19.04.2026 23:00 98 2.44 4.3
19.04.2026 22:00 98 2.44 4.6
19.04.2026 21:00 97 2.29 4.9
19.04.2026 20:00 91 1.52 5.1
19.04.2026 19:00 92 1.63 5
19.04.2026 18:00 89 1.31 5
19.04.2026 17:00 87 1.13 5
19.04.2026 16:00 87 1.13 4.9
19.04.2026 15:00 86 1.04 4.8

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