Provoz staré verze Hlásné a předpovědní povodňové služby (HPPS) na adrese https://hydro.chmi.cz/hppsoldv/ bude k 31.12.2026 ukončen.
Czech Hydrometeorological Institute
Real time data
Flood warnings
Real time stream flows
Flow forecasts
Flash Flood Guidance
Snow - daily data
Snow evaluation
Flow frequency information
Groundwaters
Flood service docs
Network of flood water gauges
Flood service guidelines document
National flood plan
Flood information system
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Forecast evaluation
Past floods reports
Others
Flash floods
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Precipitation forecast
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Hydrology-data
Monthly groundwaters report
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Monitoring network & spatial data
Water quality information system
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Flood risk maps
Links
CHMI
Information system of Czech Waters
Ministry of Environment
Elbe River Authority
Vltava River Authority
Ohře River Authority
Odra River Authority
Morava River Authority
T. G. Masaryk Water Research Institute
Ministry of Agriculture
Neighboring countries
Poland
Germany
Germany - Saxony
Slovakia
Austria - Oberosterreich
Austria-Niederosterreich
Germany
Detail station Kosky - Hamr
River
Koštěnický potok
Gauge
Kosky - Hamr
Category
B
Basin number
1-07-02
Municipality
Třeboň
Gauge operator
ČHMÚ České Budějovice
Flood warning limits
1. Level
H
=
140
[cm]
Flood watch
2. Level
H
=
170
[cm]
Flood warning
3. Level
H
=
200
[cm]
Flooding
3. Level
H
=
196
[cm]
Extreme flooding
Drought
H
= not specified
Drought
Valid for / Critical locality
Chlum u Třeboně - ústí do Lužnice
Gauge metadata Kosky - Hamr
Measurement and forecast (data)
Date and time
Stage [cm]
Flow [m
3
s
-1
]
Temperature [°C]
17.10.2026 16:00
25
0.339
17.10.2026 15:50
25
0.339
17.10.2026 15:40
25
0.339
17.10.2026 15:30
25
0.339
17.10.2026 15:20
25
0.339
17.10.2026 15:00
25
0.339
17.10.2026 14:00
24
0.301
17.10.2026 13:00
24
0.301
17.10.2026 12:00
24
0.301
17.10.2026 11:00
24
0.301
17.10.2026 10:00
24
0.301
17.10.2026 09:00
24
0.301
17.10.2026 08:00
24
0.301
17.10.2026 07:00
24
0.301
17.10.2026 06:00
25
0.339
17.10.2026 05:00
25
0.339
17.10.2026 04:00
25
0.339
17.10.2026 03:00
25
0.339
17.10.2026 02:00
25
0.339
17.10.2026 01:00
25
0.339
17.10.2026 00:00
26
0.38
16.10.2026 23:00
26
0.38
16.10.2026 22:00
26
0.38
16.10.2026 21:00
26
0.38
16.10.2026 20:00
26
0.38
16.10.2026 19:00
26
0.38
16.10.2026 18:00
26
0.38
16.10.2026 17:00
25
0.339
16.10.2026 16:00
24
0.301