low for the date
Aller at Ahlden
The Aller at Ahlden read 6 cm at .
- Newest reading
- 6 cmProvisional
- Against normal for the date
- lowin the lowest 5 percent for the date
- Normal range for the date
- 18 cm to 199 cmMedian 60 cm
- Change
- -7 cm in a day
- +15 cm in a week
That is below the normal range for the date, in the lowest 5 percent of the daily averages of these dates in the 26 years between 2000 and 2025.
We show no forecast values for German gauges: the forecasts PEGELONLINE relays come from the Federal Institute of Hydrology (BfG), whose terms allow only private and own use. ELWIS and the BfG publish them. ELWIS BfG 6-week forecast
Long views: the past year, the past decade and the whole record
Normal range and official levels
The normal range for 5 October is 18 cm to 199 cm: the 10th to 90th percentile of the daily averages from 28 September to 12 October in 26 years between 2000 and 2025.
- Highest navigable water level (HSW): 320 cm, valid from 8 January 2003. (höchster Schifffahrtswasserstand) The newest reading is 314 cm below it.Set by PEGELONLINE REST API v2 (WSV, operated by ITZBund).
- Flood mark I (M_I): 320 cm, valid from 1 June 1985. (Marke_I) The newest reading is 314 cm below it.Set by PEGELONLINE REST API v2 (WSV, operated by ITZBund).
- Flood mark II (M_II): 340 cm, valid from 1 June 1985. (Marke_II) The newest reading is 334 cm below it.Set by PEGELONLINE REST API v2 (WSV, operated by ITZBund).
- Flood mark III (M_III): 410 cm, valid from 1 June 1985. (Marke III) The newest reading is 404 cm below it.Set by PEGELONLINE REST API v2 (WSV, operated by ITZBund).
- Mean low water level (MNW): 49 cm, over 1996 to 2006. (Mittel der Niedrigwasserstände) The newest reading is 43 cm below it.Set by PEGELONLINE REST API v2 (WSV, operated by ITZBund).
- Mean water level (MW): 161 cm, over 1996 to 2006. (Mittel der Tageswasserstände) The newest reading is 155 cm below it.Set by PEGELONLINE REST API v2 (WSV, operated by ITZBund).
- Mean high water level (MHW): 408 cm, over 1996 to 2006. (Mittel der Hochwasserstände) The newest reading is 402 cm below it.Set by PEGELONLINE REST API v2 (WSV, operated by ITZBund).
Records
- Highest reading in our series since 1 January 2000: 444 cm at 06:15 CET on 9 January 2003. Provisional data.
- Lowest reading in our series since 1 January 2000: -20 cm at 01:15 CEST on 15 August 2022. Provisional data.
- Highest daily average in our series since 1 January 2000: 442.5 cm on 10 January 2003. Provisional data.
- Lowest daily average in our series since 1 January 2000: -18 cm on 6 September 2022. Provisional data.
As the source publishes them
- Lowest low water level on record (NNW): -18 cm, on 6 September 2022. (Niedrigster Niedrigwasserstand)Set by PEGELONLINE REST API v2 (WSV, operated by ITZBund).
- Highest high water level on record (HHW): 451 cm, on 10 January 1987. (Höchster Hochwasserstand)Set by PEGELONLINE REST API v2 (WSV, operated by ITZBund).
Our series holds a lower value (-20 cm) than the record WSV publishes (-18 cm); the published value may come from another period or may not be updated yet.
Next gauges on this water
The next gauges on this water by river kilometre.
About this gauge
Ahlden is a gauge on the Aller in Germany, at river kilometre 58.71.
It lies at 52.7624° N, 9.5709° E.
Its readings come from the Federal Waterways and Shipping Administration (WSV), through PEGELONLINE.
The gauge reads the height of the water above a fixed zero, not the depth of the river.
PEGELONLINE publishes its readings as unchecked raw data.
The newest reading is provisional: the source may still correct it.