Flood warning and forecasting service

FWFS

Jablonec nad Jizerou, river Jizera, forecasting profile category A, Surface water

Gauge metadata
Czech hydrometeorological institute
current status
Mean stage
Tendency : Steady state
river Jizera
gauge Jablonec nad Jizerou
category A
inclusion forecasting profile
altitude 434.77 a.s.l.
region Liberecký kraj
basin number 1-05-01
municipality Jilemnice
gauge operator ČHMÚ Praha
sub-basin Horní a střední Labe

Measured and predicted data

stage date and time stage [cm] flow [m3.s-1] temperature [°C]
19.04.2025 23:40 23 4.65 7.4
19.04.2025 23:30 23 4.65 7.4
19.04.2025 23:20 23 4.65 7.5
19.04.2025 23:10 23 4.65 7.5
19.04.2025 23:00 23 4.65 7.5
19.04.2025 22:50 22 4.48 7.5
19.04.2025 22:00 24 4.82 7.5
19.04.2025 21:00 24 4.82 7.6
19.04.2025 20:00 24 4.82 7.7
19.04.2025 19:00 25 5 7.7
19.04.2025 18:00 25 5 7.8
19.04.2025 17:00 25 5 7.8
19.04.2025 16:00 27 5.36 7.7
19.04.2025 15:00 21 4.32 7.5
19.04.2025 14:00 27 5.36 7.6
19.04.2025 13:00 28 5.55 7.6
19.04.2025 12:00 28 5.55 7.6
19.04.2025 11:00 28 5.55 7.5
19.04.2025 10:00 29 5.74 7.4
19.04.2025 09:00 29 5.74 7.4
19.04.2025 08:00 29 5.74 7.5
19.04.2025 07:00 27 5.36 7.6
19.04.2025 06:00 29 5.74 7.7
19.04.2025 05:00 31 6.13 7.9
19.04.2025 04:00 26 5.18 8.1
19.04.2025 03:00 29 5.74 8.3
19.04.2025 02:00 31 6.13 8.5
19.04.2025 01:00 31 6.13 8.7
19.04.2025 00:00 30 5.94 8.9
18.04.2025 23:00 31 6.13 9.1
the date the forecast was issued 19.04.2025 14:00
date and time stage [cm] flow [m3.s-1]
22.04.2025 08:00 57 12.6
22.04.2025 07:00 58 12.8
22.04.2025 06:00 58 12.8
22.04.2025 05:00 56 12.4
22.04.2025 04:00 53 11.5
22.04.2025 03:00 47 9.94
22.04.2025 02:00 41 8.26
22.04.2025 01:00 34 6.69
22.04.2025 00:00 29 5.76
21.04.2025 23:00 28 5.47
21.04.2025 22:00 27 5.44
21.04.2025 21:00 27 5.39
21.04.2025 20:00 26 5.18
21.04.2025 19:00 24 4.89
21.04.2025 18:00 23 4.66
21.04.2025 17:00 23 4.65
21.04.2025 16:00 23 4.65
21.04.2025 15:00 23 4.65
21.04.2025 14:00 23 4.66
21.04.2025 13:00 23 4.67
21.04.2025 12:00 23 4.68
21.04.2025 11:00 23 4.69
21.04.2025 10:00 23 4.69
21.04.2025 09:00 23 4.69
21.04.2025 08:00 23 4.7
21.04.2025 07:00 23 4.7
21.04.2025 06:00 23 4.71
21.04.2025 05:00 23 4.71
21.04.2025 04:00 23 4.71
21.04.2025 03:00 23 4.71
21.04.2025 02:00 23 4.71
21.04.2025 01:00 23 4.71
21.04.2025 00:00 23 4.71
20.04.2025 23:00 23 4.71
20.04.2025 22:00 23 4.71
20.04.2025 21:00 23 4.71
20.04.2025 20:00 23 4.71
20.04.2025 19:00 23 4.72
20.04.2025 18:00 23 4.73
20.04.2025 17:00 24 4.75
20.04.2025 16:00 24 4.76
20.04.2025 15:00 24 4.78
20.04.2025 14:00 24 4.8
20.04.2025 13:00 24 4.82
20.04.2025 12:00 24 4.84
20.04.2025 11:00 24 4.85
20.04.2025 10:00 24 4.87
20.04.2025 09:00 24 4.88
20.04.2025 08:00 24 4.9
20.04.2025 07:00 24 4.91
20.04.2025 06:00 25 4.93
20.04.2025 05:00 25 4.94
20.04.2025 04:00 25 4.96
20.04.2025 03:00 25 4.98
20.04.2025 02:00 25 5
20.04.2025 01:00 25 5.03
20.04.2025 00:00 25 5.05
19.04.2025 23:00 25 5.08
19.04.2025 22:00 26 5.12
19.04.2025 21:00 26 5.16
19.04.2025 20:00 26 5.2
19.04.2025 19:00 26 5.25
19.04.2025 18:00 27 5.3
19.04.2025 17:00 27 5.35
19.04.2025 16:00 27 5.4
19.04.2025 15:00 27 5.44
19.04.2025 14:00 28 5.49
19.04.2025 13:00 28 5.55

Flood warning limits

flood warning levels water stage
Drought -4 cm
Flood watch 150 cm
Flood warning 180 cm
Flooding 210 cm
Extreme flooding 393 cm

Legend - measurement affected

Measurement affected
The measurement is affected by ice phenomena

Valid for / Critical locality :

horní tok Jizery po ústí Jizerky

Probability of exceeding levels of flood activity

time of release of the probabilistic forecast 19. 04. 2025 06:00
date Flood watch Flood warning Flooding
19. 04. 07h
less than 5%
less than 5%
less than 5%
19. 04. 19h
less than 5%
less than 5%
less than 5%
20. 04. 07h
less than 5%
less than 5%
less than 5%
20. 04. 19h
less than 5%
less than 5%
less than 5%
21. 04. 07h
less than 5%
less than 5%
less than 5%
21. 04. 19h
less than 5%
less than 5%
less than 5%
22. 04. 07h
less than 5%
less than 5%
less than 5%
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