The National Hydrology Bulletin for January 2021 is now available…
Hydrology Summary Bulletin – January 2024
The Hydrology bulletin on rainfall, river flows, lake levels, groundwater levels and spring outflows for January 2024 has been published.
Overview
Rainfall was below average in most locations across the country for January 2024. However, towards the end of the month, an intense North Atlantic jet stream steered two named storms (Isha and Jocelyn) close to the north of the country between the 21st and 24thwhich brought widespread wet and windy weather.
The monthly average river flows for January decreased compared to the previous month, with 75% of river flows within the long-term normal for January, while 51% of lake and turlough monitoring stations observed levels above the long-term normal range for this month.
Average monthly groundwater levels decreased compared to the previous month; however, 44% of monitoring wells recorded levels above the long-term average for January while 50% were in the long-term norm.