Mumlava at Janov-Harrachov
The Mumlava at Janov-Harrachov read 78 cm at .
Last updated . This page normally updates every hour; the latest update is late.
78 cmProvisional
- Change in a day
- -1 cm
Where the water stands
That is below the first flood activity degree (vigilance) of 160 cm set by the Czech Hydrometeorological Institute.
Table: where the water stands
| Level | Value |
|---|---|
| Newest reading | 78 cm, |
| Hydrological drought level | 78 cm |
| First flood activity degree (vigilance) | 160 cm |
| Second flood activity degree (readiness) | 190 cm |
| Third flood activity degree (danger) | 250 cm |
| Extreme flood level | 291 cm |
The last 90 days
- Level
- Official level
Table: The last 90 days
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About these figures
Official levels
- Hydrological drought level: 78 cm. (hydrologické sucho) The newest reading is at this level.Set by Zdroj: Český hydrometeorologický ústav (CHMI), CC BY 4.0.
- First flood activity degree (vigilance): 160 cm. (stav bdělosti) The newest reading is 82 cm below it.Set by Zdroj: Český hydrometeorologický ústav (CHMI), CC BY 4.0.
- Second flood activity degree (readiness): 190 cm. (stav pohotovosti) The newest reading is 112 cm below it.Set by Zdroj: Český hydrometeorologický ústav (CHMI), CC BY 4.0.
- Third flood activity degree (danger): 250 cm. (stav ohrožení) The newest reading is 172 cm below it.Set by Zdroj: Český hydrometeorologický ústav (CHMI), CC BY 4.0.
- Extreme flood level: 291 cm. (extrémní povodeň) The newest reading is 213 cm below it.Set by Zdroj: Český hydrometeorologický ústav (CHMI), CC BY 4.0.
About this gauge
Janov-Harrachov is a gauge on the Mumlava in Czechia.
It lies at 50.7642° N, 15.3968° E.
Its readings come from the Czech Hydrometeorological Institute (CHMI).
The gauge reads the height of the water above a fixed zero, not the depth of the river.
Readings since 1 January 2026: too short a record for a normal range for the date or for records that mean much.
CHMI publishes its 10-minute readings as current data that it has not validated yet.
The newest reading is provisional: the source may still correct it.