RIMU hydrology situation report. 8 March 2021
Author:Auckland Council Research and Evaluation Unit, RIMU
Source:Auckland Council Research and Evaluation Unit, RIMU
Regional summary for 1-8 March 2021
Rainfall varied throughout the region this week, but all sites recorded rainfall. Most sites received between 20-30mm, but rainfall in excess of 50mm was recorded in northern, western, and southern sites. Soil moisture is normal in most locations with only one site near Waiuku below the normal range. River flows are higher than last week with seven sites remaining below the mean annual low flow (MALF), three of which are below 85% MALF. Groundwater levels remain at similar levels to the last report. Low groundwater levels persist in deep aquifers and those aquifers which respond slowly to rainfall, most of which are in Franklin and are important sources for irrigation.