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IMGW: current and forecasted hydrological situation, new warnings. UPDATE

IMGW: aktualna i prognozowana sytuacja hydrologiczna, nowe ostrzeżenia. AKTUALIZACJA

IMGW appeals to check updated forecasts and meteorological and hydrological warnings on IMGW-PIB portals and to maintain vigilance and appropriate procedures in regions at risk of flooding.

IMGW: 45 hydrological stations with exceeded alarm level and 31 stations with warning level. UPDATE

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IMGW: 45 hydrological stations with exceeded alarm level and 31 stations with warning level. UPDATE Polish Waters: Dry flood control reservoirs are starting to fill. UPDATE

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Polish Waters: Dry flood control reservoirs are starting to fill. UPDATE

Current hydrological situation

IMWM report from September 14 at 12:00:

Significant increases in water levels occurred mainly in the Lower Silesian, Opole, Silesian, Lesser Poland, Świętokrzyskie and Greater Poland voivodeships. Particularly large increases occurred in the catchments of the left-side tributaries of the upper and middle Odra. Within 24 hours (6 UTC 13.09 – 6 UTC 14.09) in Biała Nyska on Biała Głuchołaska the increase in water level was 327 cm.

As of 09 UTC, the alarm level was exceeded at: 3 gauge stations in the Vistula river basin, by a maximum of 68 cm at the PSZCZYNA station on the Pszczynka river; 42 gauge stations in the Odra river basin, by a maximum of 201 cm at the PRUDNIK station on the Prudnik river. The warning level was exceeded at: 5 gauge stations in the Vistula river basin; 23 gauge stations in the Odra river basin; 1 gauge station in the Przymorze river basin; 1 marine gauge station; 1 gauge station in the Elbe river basin. The highest rainfall was recorded in Jarnołtówek in Opole province: 161.5 mm – this is approximately 30 mm more than the previous record from 1997.

IMWM report from September 13 at 10:00 p.m.:

In its announcement of September 13 at 10:00 p.m., IMGW provides the percentage share of hydrological stations in individual zones of characteristic states, which is as follows:

  • low water zone 53%;
  • middle water zone 40%;
  • high water zone 7%.

Increases are recorded on the left-hand tributaries of the Odra. The most difficult situation is in the Kłodzko Valley. Over the last 12 hours (as of the evening of 13.09) the largest increase in water level was recorded at the stations: Świerzawa (Kaczawa) 141 cm, Piechowice (Kamienna) 137 cm, Jelenia Góra (Kamienna) 136 cm, Łomnica (Łomnica) 134 cm, Kałków (Widna) 126 cm.

The alarm level was exceeded at 19 hydrological stations in the Odra river basin. The highest exceedance of the alarm level was recorded at the Głuchołazy station (Biała Głuchołaska) 71 cm. The warning level was exceeded at 24 hydrological stations in the Odra river basin.

Weather forecast for September 14 and 15

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Weather forecast for September 14 and 15

Meteorological and hydrological warnings in force (as of 14.09, 20:10)

Currently issued weather warnings for heavy rainfall, strong winds and thunderstorms:

  • 3rd degree – voivodeships: Lublin, Masovian, Greater Poland, Świętokrzyskie, Łódź, Lower Silesia, Opole, Silesian, Świętokrzyskie, Lesser Poland
  • 2nd degree – Subcarpathian Voivodeship
  • 1st degree – Podlaskie Voivodeship

Currently issued hydrological warnings

  • 3° flood exceeding alarm levels – Silesian, Lower Silesian, Opole, Greater Poland, Lesser Poland, Łódź Voivodeships;
  • 2° flood exceeding warning levels – Masovian, Świętokrzyskie, Subcarpathian, Pomeranian, Warmian-Masurian, West Pomeranian Voivodeships;
  • 1° sudden increases in water levels – Lublin Voivodeship

In three voivodeships (Podlaskie, Kujawsko-Pomorskie and Lubuskie) warnings about hydrological drought are still in force.

Wielkopolskie: 45 events related to heavy rain; alarm levels exceeded on rivers

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Wielkopolskie: 45 events related to heavy rain; alarm levels exceeded on rivers

Forecasted hydrological situation for the period 14-16 September 2024 (communication of 14 September, 12:00)

The catchment area of the upper Vistula tributaries

In the forecast period, on the Vistula to the mouth of the San, the water level is expected to increase to the zone of high levels (to the mouth of the Dunajec) and medium and low levels (from the mouth of the Dunajec to the mouth of the San). At the hydrological stations Pustynia and Kraków-Bielany, exceedances of warning levels are forecast. In the following days, it is possible that conventional levels will be exceeded in the next profiles. On the remaining section of the Vistula from the mouth of the San to Dęblin, water level fluctuations are expected in the zone of low levels.

As a result of forecasted further rainfall, covering the majority of the sheltered area, further water level increases are expected on rivers in the Vistula catchment area to Dęblin and in the catchments of Czarna Orawa and Strwiązę. The greatest intensity of increases is forecasted on rivers located in the Silesian and Lesser Poland voivodeships (especially in their western part), where further exceedances of warning and alarm levels are forecast (mainly in the catchments of: Mała Wisła, Przemsza, Soła, Skawa, Raba, Skawinka and Rudawa). On rivers in other voivodeships, water level increases are expected, locally sudden, to the zone of medium and high levels. In places, exceedances of warning levels are possible, and locally alarm levels are possible.

On the Bug after Krzyczew, the water level is expected to stabilize in the low-level zone. On its tributaries, water level increases or fluctuations are forecast in the low and medium-level zone, and in places high.

Lower Silesia: over 200 fire brigade interventions in the Kłodzko district

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Lower Silesia: over 200 fire brigade interventions in the Kłodzko district

The catchment area of the upper and middle Odra tributaries

Water levels on the upper Odra will tend to rise above conventional levels – in Chałupki above the alarm level, from Olza to Racibórz Miedonia above warning levels, and then during the day also alarm levels. The upward trend in water levels will continue until Sunday (September 15), when maximum levels are expected to be reached. Stabilization and gradual drops in water levels are expected from Monday, but still in the zone above alarm levels.

Water levels on the canalized middle Odra will also increase, initially slowly in the medium and high water zone, from Saturday evening above warning levels, and in the following days above alarm levels. Periodically, greater dynamics will occur on the Odra below the mouth of Mała Panew, and especially below the mouth of Nysa Kłodzka, in connection with increased water discharge from the Turawa, Nysa and Otmuchów retention reservoirs.

On the freely flowing middle Odra, water levels will gradually rise in the medium water zone, and then in the high water zone. Warning levels are expected to be exceeded on September 15 in Ścinawa, and on the remaining section in the following days.

In the catchments of the upper and middle Odra tributaries, the forecast rainfall will maintain the already ongoing upward trend of levels with numerous exceedances of warning levels, and ultimately even alarm levels to a significant extent, especially in the catchments of the Sudetes and the Sudetes Foreland rivers, as well as the upper Odra tributaries and the Silesian Upland. A particularly dynamic increase in water levels is forecasted for Saturday and Sunday. Maximum water levels are expected locally already on the night from Saturday to Sunday, and later on Sunday and locally on Monday. In the catchments of the right-hand tributaries of the middle Odra, water levels will initially increase in the low and medium water zone, and ultimately to the high water zone with exceedances of conventional levels. Exceedances of alarm levels are forecasted especially in the Barycz catchment. Maximum water levels are expected in smaller catchments from Sunday/Monday, and on larger rivers throughout the following week.

Cieszyn Silesia: flood alert in the Zebrzydowice commune

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Cieszyn Silesia: flood alert in the Zebrzydowice commune

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