Český Krumlov, river Polečnice (Kájovský potok), forecasting profile category A, Surface water

Gauge metadata

Czech hydrometeorological institute

• Graph
• Detail station (table)
• Probabilistic forecast

current status	Mean stage Tendency : Steady state
river	Polečnice (Kájovský potok)
gauge	Český Krumlov
category	A
inclusion	forecasting profile
altitude	482.3 a.s.l.
region	Jihočeský kraj
basin number	1-06-01
municipality	Český Krumlov
gauge operator	ČHMÚ České Budějovice
sub-basin	Horní Vltava

• Representation
• Legend
• Documentation

• Network of water gauges
  • Category A
  • Category B
  • Category C
  • SPA
  • Non-automated objects
  • Tendency
• Watercourses
• Regionalization
  • CHMI regional offices
  • Basin units
  • Region
  • Municipality

Water gauging profile

Forecasting profile

Non-automated object

the facility is not equipped with automated data collection

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Flood warning levels

Drought

Mean stage

Flood watch

Flood warning

Flooding

Extreme flooding

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Measurement affected

The measurement is affected by ice phenomena

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Tendency expresses a rise/decline in the value of water level at a station in the last 3 hours.

 Rapidly declining – water level value decreased by more than 20 cm in the last 3 hours

 declining – water level value decreased by more than 10 cm in the last 3 hours

 steady state – water level value was in the range of +15cm/-10cm in the last 3 hours

 rising – water level value increased by more than 15cm in the last 3 hours

 rapidly rising – water level value increased by more than 30 cm in the last 3 hours

Topografická mapa Základní mapa Ortofoto

Measured and predicted data

• Measured data
• Data in the chart range
• Model forecast

stage	date and time	stage [cm]	flow [m3.s-1]	temperature [°C]
	12.07.2025 12:40	14	0.435	14.7
	12.07.2025 12:30	14	0.435	14.6
	12.07.2025 12:20	14	0.435	14.6
	12.07.2025 12:10	14	0.435	14.6
	12.07.2025 12:00	14	0.435	14.6
	12.07.2025 11:50	14	0.435	14.5
	12.07.2025 11:00	14	0.435	14.2
	12.07.2025 10:00	15	0.482	13.9
	12.07.2025 09:00	15	0.482	13.5
	12.07.2025 08:00	15	0.482	13.3
	12.07.2025 07:00	16	0.53	13.2
	12.07.2025 06:00	17	0.58	13.2
	12.07.2025 05:00	17	0.58	13.3
	12.07.2025 04:00	18	0.632	13.3
	12.07.2025 03:00	18	0.632	13.3
	12.07.2025 02:00	18	0.632	13.4
	12.07.2025 01:00	19	0.685	13.6
	12.07.2025 00:00	20	0.741	13.8
	11.07.2025 23:00	22	0.854	14.3
	11.07.2025 22:00	24	0.97	14.8
	11.07.2025 21:00	27	1.15	15.1
	11.07.2025 20:00	20	0.741	15.5
	11.07.2025 19:00	15	0.482	15.7
	11.07.2025 18:00	14	0.435	16
	11.07.2025 17:00	11	0.306	15.8
	11.07.2025 16:00	11	0.306	15.9
	11.07.2025 15:00	10	0.266	15.2
	11.07.2025 14:00	10	0.266	15.2
	11.07.2025 13:00	10	0.266	15
	11.07.2025 12:00	10	0.266	14.9

the date the forecast was issued 12.07.2025 08:56

date and time	stage [cm]	flow [m3.s-1]
15.07.2025 02:00	13	0.407
15.07.2025 01:00	14	0.456
15.07.2025 00:00	16	0.507
14.07.2025 23:00	17	0.559
14.07.2025 22:00	17	0.594
14.07.2025 21:00	18	0.607
14.07.2025 20:00	17	0.596
14.07.2025 19:00	17	0.557
14.07.2025 18:00	15	0.484
14.07.2025 17:00	13	0.385
14.07.2025 16:00	11	0.299
14.07.2025 15:00	10	0.25
14.07.2025 14:00	9	0.221
14.07.2025 13:00	9	0.214
14.07.2025 12:00	9	0.213
14.07.2025 11:00	9	0.214
14.07.2025 10:00	9	0.215
14.07.2025 09:00	9	0.216
14.07.2025 08:00	9	0.217
14.07.2025 07:00	9	0.218
14.07.2025 06:00	9	0.219
14.07.2025 05:00	9	0.22
14.07.2025 04:00	9	0.222
14.07.2025 03:00	9	0.223
14.07.2025 02:00	9	0.223
14.07.2025 01:00	9	0.224
14.07.2025 00:00	9	0.225
13.07.2025 23:00	9	0.225
13.07.2025 22:00	9	0.226
13.07.2025 21:00	9	0.227
13.07.2025 20:00	9	0.227
13.07.2025 19:00	9	0.228
13.07.2025 18:00	9	0.229
13.07.2025 17:00	9	0.229
13.07.2025 16:00	9	0.23
13.07.2025 15:00	9	0.231
13.07.2025 14:00	9	0.232
13.07.2025 13:00	9	0.234
13.07.2025 12:00	9	0.235
13.07.2025 11:00	9	0.237
13.07.2025 10:00	9	0.239
13.07.2025 09:00	9	0.243
13.07.2025 08:00	9	0.247
13.07.2025 07:00	10	0.252
13.07.2025 06:00	10	0.258
13.07.2025 05:00	10	0.265
13.07.2025 04:00	10	0.274
13.07.2025 03:00	10	0.283
13.07.2025 02:00	11	0.29
13.07.2025 01:00	11	0.295
13.07.2025 00:00	11	0.311
12.07.2025 23:00	11	0.304
12.07.2025 22:00	11	0.304
12.07.2025 21:00	11	0.302
12.07.2025 20:00	11	0.306
12.07.2025 19:00	11	0.31
12.07.2025 18:00	11	0.31
12.07.2025 17:00	11	0.311
12.07.2025 16:00	11	0.314
12.07.2025 15:00	11	0.323
12.07.2025 14:00	12	0.331
12.07.2025 13:00	12	0.343
12.07.2025 12:00	12	0.356
12.07.2025 11:00	13	0.379
12.07.2025 10:00	13	0.403
12.07.2025 09:00	14	0.437
12.07.2025 08:00	15	0.475
12.07.2025 07:00	16	0.53

Flood warning limits

flood warning levels	water stage
Drought	6 cm
Flood watch	100 cm
Flood warning	140 cm
Flooding	170 cm
Extreme flooding	338 cm

Legend - measurement affected

Measurement affected

The measurement is affected by ice phenomena

Valid for / Critical locality :

Kájov - ústí Polečnice

Probability of exceeding levels of flood activity

time of release of the probabilistic forecast 12. 07. 2025 06:00

date	Flood watch	Flood warning	Flooding
12. 07. 07h	less than 5%	less than 5%	less than 5%
12. 07. 19h	less than 5%	less than 5%	less than 5%
13. 07. 07h	less than 5%	less than 5%	less than 5%
13. 07. 19h	less than 5%	less than 5%	less than 5%
14. 07. 07h	less than 5%	less than 5%	less than 5%
14. 07. 19h	less than 5%	less than 5%	less than 5%

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