Flood Warning Info - Horsham on the River Arun

Area Description

The River Arun at Horsham, from Amiesmill Bridge to Hills Farm Lane, including Millbay Lane, Tanbridge Park, Arunside, and Ridgehurst Drive.
This is a Flood Warning Area. For this area, you may receive Flood Warnings or Severe Flood Warnings.
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There are no Flood Warnings currently in force for this area. See below for historical flood warnings.

Area Covered by this Flood Warning

The red highlighted area on the map below outlines the area covered by this Flood Warning.
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Flood Warning History

Number of historic Flood Warnings that have previously been recorded for this area:
We can provide a Flood Insurance Quote for properties in the Horsham area

Historical Flood Warning Messages for this Area

  • We have only been collating detailed flood messages since May 2017.
  • Each Flood Warning may have multiple updates. The messages listed below may therefore be greater than the number of alerts detailed in the Flood Warning table above.

Flood Warning issued on 16 Feb 2020 23:46
River Arun
River levels are still high on the Arun through Horsham, but have now peaked and are slowly falling. Flood impacts will continue to affect properties, roads, gardens and fields, including at Tanbridge Park, Riverside and Provender Mill. Please take care in and around flood affected areas, flood water can contain hidden dangers. Rain has now cleared, and only isolated showers are expected until Thursday 20/2/2020. These showers are unlikely to cause river levels to rise significantly, if at all. River levels may not return to normal until Monday afternoon 17/2/2020. Please plan to avoid driving through routes vulnerable to flooding. Our automatic sluice at Provender Mill is operating to help reduce the risk of flooding through Horsham. We will update this message by 10:00 on 17/2/2020.


Flood Warning issued on 16 Feb 2020 08:57
River Arun
The River Arun is rising quickly after 30mm of rainfall due to Storm Dennis. A further 15mm is possible by 15:00 16/02/2020. River levels are rising and property flooding is expected from 12:30 16/02/2020. Water will also affect fields, gardens, and roads. Impacts could be similar to Christmas 2019. Locations could include: Tanbridge Park, Riverside and Provender Mill in Horsham. Rain will ease Sunday afternoon. With only isolated showers through to midweek, river levels should begin to fall by Monday morning 17/02/2020. Plan to avoid driving through routes vulnerable to flooding. Our automatic sluice at Provender Mill is operating to help reduce the risk of flooding. We will update this message by 22:00 16/2/2020


Flood Warning issued on 21 Dec 2019 15:37
River Arun
River levels have fallen following Friday’s heavy rain. However, widespread rain is forecast from 17:00 today 21/12/2019 until 08:00 22/12/2019, and rivers will rise in response to this rainfall. Flooding is possible from 23:00 21/12/2019. Locations to be affected will include properties of Tanbridge Park, Riverside and near Provender Mill. River levels will continue to rise until 10:00 22/12/2019, and then slowly fall. Sunday and Monday should stay largely dry, but rain is forecast for Tuesday (24/12/2019), which may cause river levels to rise again. Some roads may become impassable. Please plan to avoid driving through routes vulnerable to flooding. Our automatic sluice at Provender Mill is operating to help reduce the risk of flooding. We will update this message by 12:00 22/12/2019.


Flood Warning issued on 20 Dec 2019 19:59
River Arun
Following nearly a month’s rainfall over the past week, and 20mm Thursday night, river levels are still very high on the River Arun. Flood impacts will likely continue until Sunday 22/12/2019. Locations to be affected will include properties of Tanbridge Park, Riverside and near Provender Mill. A small amount of rain in the early hours of Saturday will be followed by more widespread rain between 17:00 Saturday 21/12/2019, and 08:00 Sunday 22/12/2019. While river levels may fall slightly Friday night and Saturday morning, by Sunday (22/12/2019) river levels will return to heights similar to those experienced on Friday, if not higher. Some roads may become impassable. Please plan to avoid driving through routes vulnerable to flooding. Our automatic sluice at Provender Mill is operating to help reduce the risk of flooding. We will update this message by 17:00 21/12/2019.


Flood Warning issued on 20 Dec 2019 10:58
River Arun
Following nearly a month’s rainfall over the past week, and 20mm Thursday night, river levels are high and rising on the River Arun. Flooding is expected from 11:30 20/12/2019. Locations to be affected will include properties of Tanbridge Park, Riverside and near Provender Mill. The widespread rain has now cleared, leaving a largely dry day Friday, apart from isolated showers. Widespread rain will return from 15:00 Saturday 21/12/2019. River levels will continue to rise until 20:00 20/12/2019, but further increases should be expected Saturday evening (21/12/2019) following the next band of rain. Some roads may become impassable, please plan to avoid driving through routes vulnerable to flooding. Our automatic sluice at Provender Mill is operating to help reduce the risk of flooding. We will update this message by 21:00 20/12/2019.