Here’s the latest information from the Environment Agency (EA) 29/01/23:
Groundwater in Hampshire is currently very high. The first half of January 2023 was wet, with all rain gauges across Hampshire recording between 100 and 175% of January’s average monthly rainfall. However, since 17 January 2023, very little rain has been recorded.
Winterbourne streams are now flowing in many locations. In Hursley and across communities in East Hampshire, groundwater flood impacts are expected to continue affecting properties, roads and sewerage networks. However, levels are either starting to stabilise, or are now slowly falling in most communities across Hampshire.
Over the next 5 days, the weather is forecast to be dry, allowing groundwater levels to continue falling. Unsettled weather is possible in February 2023, although confidence on timings, intensities and locations is currently low. If average or above average rain is recorded this winter, then more widespread flooding impacts are possible. We advise that all communities be prepared for flooding impacts this winter.
We will update this briefing note by Friday 24th February 2023.