The National Hydrology Bulletin for January 2021 is now available…
Hydrology bulletin on rainfall, river flows, lake levels, groundwater levels and spring outflows for April 2022
Following a dry April, river flow, lake levels and groundwater levels are lower than normal across the country. You can learn more in the April Hydrology Summary Bulletin which highlights the flows in rivers, rainfall, lake and turlough levels, groundwater levels and spring outflows of over 300 stations across Ireland.
Almost all rainfall amounts were below long-term averages for April across the country, with driest conditions in the East. River flows generally fell during the month of April with almost three-quarters (72%) of river monitoring stations observed monthly average flows “below normal” or “particularly low” river flows for this time of year.
Similarly, 73% of lake level monitoring stations were either “below normal” or “particularly low” for April.
For groundwater, levels one third (33%) of monitoring stations were within ‘normal’ levels for April long-term averages, with the remaining two-thirds below their long-term monthly averages.
Similarly, most monitored spring outflows were also ‘particularly low’ compared to average monthly flows for this time of year.
You can download the April 2022 Hydrology Summary Bulletin here: https://www.epa.ie/publications/monitoring–assessment/freshwater–marine/hydrology-bulletin/hydrology-bulletin/hydrology-bulletin-on-rainfall-river-flows-lake-levels-groundwater-levels-and-spring-outflows-for-april-2022.php