Flood Alert Info - River Cynon

Area Description

River Cynon.
This is a Flood Alert Area. For this area the highest level of flood notification that you will receive is a Flood Alert. No Flood Warnings or Severe Flood Warnings are issued for this area.
Get a Flood Insurance Quote for your Home or Business
There are no Flood Alerts currently in force for this area. See below for historical flood warnings.

Area Covered by this Flood Alert

Download the Flood Assist App
Download the Flood Assist App to view current flood warnings, check your flood risk, and create your digital flood action plan.
Sign up for Live Flood Warnings & Alerts
Sign up to receive live flood warning and alert updates for your location using data from the Environment Agency, SEPA and NRW.

Flood Alert History

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

Historical Flood Alert Messages for this Area

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

Flood Alert issued on 21 May 2021 06:54
South East
This message will be updated on Floodline and on our website at 12 PM. At 6:30 AM, the level at Hirwaun was falling. A peak level of 1 metres occurred at 1:15 AM today. The level at Aberdare was falling. . A peak level of 1.2 metres occurred at 1:15 AM today. The level at Mountain Ash was falling. A peak level of 1.8 metres occurred at 3 AM today. The level at Abercynon was falling. A peak level of 1.6 metres occurred at 3:45 AM today.


Flood Alert issued on 21 May 2021 00:09
South East
This message will be updated on Floodline and on our website at 7 AM. At midnight, river levels at Hirwaun, Aberdare, Mountain Ash and Abercynon gauges are rising.


Flood Alert issued on 9 May 2021 07:01
South East
This message will be updated on Floodline and on our website at midday. At 7 AM, the level at Hirwaun was falling. A peak level of 1.06 metres occurred at 1:30 AM today. The level at Aberdare was falling. . A peak level of 1.29 metres occurred at 1:45 AM today. The level at Mountain Ash was falling. A peak level of 2.08 metres occurred at 4:30 AM today. The level at Abercynon was falling. A peak level of 1.87 metres occurred at 5 AM today.


Flood Alert issued on 8 May 2021 19:59
South East
This message will be updated on Floodline and on our website at 7 AM. At 8 PM, the level at Hirwaun was steady. A peak level of 0.98 metres occurred at 3:30 PM today. The level at Aberdare was steady. A peak level of 1.06 metres occurred at 3 PM today. The level at Mountain Ash was steady. A peak level of 1.7 metres occurred at 5:45 PM today. The level at Abercynon was steady. A peak level of 1.45 metres occurred at 4:30 PM today. Further rainfall is forecast for this evening and this alert will remain in force overnight.


Flood Alert issued on 8 May 2021 14:44
South East
This message will be updated on Floodline and on our website at 8 PM. At 2:30 PM, river levels at Hirwaun, Aberdare, Mountain Ash and Abercynon gauges are rising.


Flood Alert issued on 20 Feb 2021 18:00
South East
This message will be updated at 7:30 AM. At 6:00 PM, the level at Hirwaun was falling. A peak level of 1.2 metres occurred at 1:45 AM today. The level at Aberdare was falling. A peak level of 1.7 metres occurred at 2:00 AM today. The level at Mountain Ash was falling. A peak level of 2.5 metres occurred at 4:30 AM today. The level at Abercynon was falling. A peak level of 2.3 metres occurred at 5:30 AM today.


Flood Alert issued on 20 Feb 2021 05:52
South East
This message will be updated at 6:00 PM. At 5:45 AM, the level at Hirwaun was falling. A peak level of 1.2 metres occurred at 1:45 AM today. The level at Aberdare was falling. A peak level of 1.7 metres occurred at 2:00 AM today. The level at Mountain Ash was falling. A peak level of 2.5 metres occurred at 4:30 AM today. The level at Abercynon was steady. The current level is expected to be the peak.


Flood Alert issued on 19 Feb 2021 16:43
South East
This message will be updated at 6:00 AM. At 4:30 PM, river levels at Hirwaun, Aberdare, Mountain Ash and Abercynon gauges are rising. This alert has been issued based on forecast rainfall, which is expected to continue overnight and into Saturday.


Flood Alert issued on 20 Jan 2021 21:06
South East
This message will be updated at 7 AM or if the situation changes. At 8:30PM, the level at Hirwaun was rising. The level at Aberdare was rising. The level at Mountain Ash was rising. The level at Abercynon was rising. .


Flood Alert issued on 20 Jan 2021 18:00
South East
This message will be updated at 10 PM or if the situation changes. At 5PM, the level at Hirwaun was steady. A peak level of 1 metres occurred at 3 AM today. The level at Aberdare was steady. A peak level of 1.4 metres occurred at 2 AM today. The level at Mountain Ash was steady. A peak level of 2.1 metres occurred at 8:30 AM today. The level at Abercynon was rising.


Flood Alert issued on 20 Jan 2021 11:42
South East
This message will be updated at 6 PM or if the situation changes. At 11 AM, the level at Hirwaun was steady. A peak level of 1 metres occurred at 3 AM today. The level at Aberdare was steady. A peak level of 1.4 metres occurred at 2 AM today. The level at Mountain Ash was steady. A peak level of 2.1 metres occurred at 8:30 AM today. The level at Abercynon was rising


Flood Alert issued on 20 Jan 2021 06:53
South East
This message will be updated at 12 PM or if the situation changes. At 7 AM, the level at Hirwaun was rising. A peak level of 1 metres occurred at 3 AM today. The level at Aberdare was rising. A peak level of 1.4 metres occurred at 2 AM today. The level at Mountain Ash was rising. The level at Abercynon was rising.


Flood Alert issued on 19 Jan 2021 20:30
South East
This message will be updated at 7:00 AM or if the situation changes. At 8:15 PM, river levels at Hirwaun, Aberdare, Mountain Ash and Abercynon gauges are steady. However, river levels are expected to rise overnight due to the forecast rain.


Flood Alert issued on 27 Dec 2020 08:06
South East
This message will be updated at 8:00 PM or if the situation changes. At 7:30 AM, the level at Hirwaun was falling. A peak level of 1.0 metres occurred at 2:50 AM today. The level at Aberdare was falling. . A peak level of 1.4 metres occurred at 2:15 AM today. The level at Mountain Ash was falling. A peak level of 2.0 metres occurred at 5:00 AM today. The level at Abercynon is steady. A peak level of 1.8 metres occurred at 5:30 AM today.


Flood Alert issued on 27 Dec 2020 01:02
South East
This message will be updated at 8:00 AM or if the situation changes. At 1 AM, river levels at Hirwaun, Aberdare, Mountain Ash and Abercynon gauges are rising.


Flood Alert issued on 23 Dec 2020 22:04
South East
This message will be updated at 7:00 AM or if the situation changes. At 10 PM, the level at Hirwaun was falling. A peak level of 0.87 metres occurred at 3 PM today. The level at Aberdare was falling. . A peak level of 1 metres occurred at 2 PM today. The level at Mountain Ash was falling. A peak level of 1.77 metres occurred at 7:15 PM today. The level at Abercynon was falling. A peak level of 1.6 metres occurred at 7:30 PM today.


Flood Alert issued on 23 Dec 2020 16:14
South East
This message will be updated at 10:00 PM or if the situation changes. At 4 PM, river levels at Hirwaun, Aberdare, Mountain Ash and Abercynon gauges are rising.


Flood Alert issued on 19 Dec 2020 07:07
South East
This message will be updated at 6:00 PM or if the situation changes. At 07:00 AM, the level at Hirwaun was falling. A peak level of 1.1 metres occurred at 00:30 AM today. The level at Aberdare was falling. . A peak level of 1.4 metres occurred at 00:30 AM today. The level at Mountain Ash was falling. A peak level of 2.1 metres occurred at 03:00 AM today. The level at Abercynon was falling. A peak level of 1.9 metres occurred at 3:15 AM today.


Flood Alert issued on 18 Dec 2020 17:58
South East
This message will be updated at 7:00 AM or if the situation changes. At 5:00 PM, the level at Hirwaun was steady. The level at Aberdare was rising. The level at Mountain Ash was rising. The level at Abercynon was steady. Further rainfall is forecast this evening and overnight which could see river levels rise again.


Flood Alert issued on 18 Dec 2020 12:43
South East
This message will be updated at 6:00 PM or if the situation changes. At 12:30 PM, river levels at Hirwaun, Aberdare, Mountain Ash and Abercynon gauges are rising. This Flood Alert has been issued based on forecast river levels for this afternoon and tonight.


Flood Alert issued on 10 Mar 2020 07:39
South East
This message will be updated at 12:30 PM today or if the situation changes. At 7 AM, the level at Hirwaun was falling. A peak level of 0.8 metres occurred at 4 AM today. The level at Aberdare was falling. . A peak level of 1.1 metres occurred at 2 AM today. The level at Abercynon was falling. A peak level of 1.4 metres occurred at 5 AM today.


Flood Alert issued on 10 Mar 2020 01:42
South East
This message will be updated at 7:45 AM or if the situation changes. At 1:30 AM, river levels at Hirwaun, Aberdare, Mountain Ash and Abercynon gauges are rising


Flood Alert issued on 29 Feb 2020 06:45
South East
This message will be updated at midday or if the situation changes. At 6:15 AM, the level at Hirwaun was falling. A peak level of 1.1 metres occurred at 4:00 AM today. The level at Aberdare was falling. A peak level of 1.6 metres occurred at 3:15 AM today. The level at Abercynon was rising.


Flood Alert issued on 28 Feb 2020 22:04
South East
This message will be updated at 7:00 AM or if the situation changes. At 10:00 PM, the level at Hirwaun was steady. The level at Aberdare was steady. The level at Abercynon was steady. River levels are expected to increase following further rainfall overnight, which is forecast to clear by 6:00 AM


Flood Alert issued on 28 Feb 2020 17:54
South East
This message will be updated at 10:00 PM or if the situation changes. At 6:00 PM, the level at Hirwaun was steady. The level at Aberdare was rising. The level at Mountain Ash was rising. The level at Abercynon was rising


Flood Alert issued on 28 Feb 2020 11:17
South East
This message will be updated at 6:00 PM or if the situation changes. At 11:15 AM, river levels at Hirwaun, Aberdare, Mountain Ash and Abercynon gauges are rising. This message has been issued based on forecast river levels for Friday and overnight into Saturday.


Flood Alert issued on 24 Feb 2020 12:00
South East
This message will be updated at 6:00 PM or if the situation changes. At 11:45 AM, the level at Hirwaun was falling. A peak level of 0.8 metres occurred at 10:15 AM today. The level at Aberdare was falling. A peak level of 1.7 metres occurred at 10:45 AM today. The level at Mountain Ash was steady. The level at Abercynon was rising.


Flood Alert issued on 24 Feb 2020 10:16
South East
This message will be updated at midday or if the situation changes. At 10:00 AM, river levels at Hirwaun, Aberdare, Mountain Ash and Abercynon gauges are rising.


Flood Alert issued on 16 Feb 2020 21:40
South East
This message will be updated at 7:00 AM or if the situation changes. At 9:40 PM, the level at Hirwaun was steady. A peak level of 1.3 metres occurred at 2:15 AM today. The level at Aberdare was falling. A peak level of 2.1 metres occurred at 3:30 AM today. The level at Mountain Ash was falling. A peak level of 2.1 metres occurred at 5 AM today. The level at Abercynon was falling. A peak level of 3 metres occurred at 7 AM today.


Flood Alert issued on 16 Feb 2020 17:37
South East
This message will be updated at 10:00 PM or if the situation changes. At 6:00 PM, the level at Hirwaun was falling. A peak level of 1.3 metres occurred at 2:15 AM today. The level at Aberdare was falling. . A peak level of 2.1 metres occurred at 3:30 AM today. The level at Mountain Ash was falling. A peak level of 2.1 metres occurred at 5 AM today. The level at Abercynon was falling. A peak level of 3 metres occurred at 7 AM today. .


Flood Alert issued on 16 Feb 2020 12:34
South East
This message will be updated at 6:00 PM or if the situation changes. At midday, the level at Hirwaun was falling. A peak level of 1.3 metres occurred at 2:15 AM today. The level at Aberdare was falling. A peak level of 2.1 metres occurred at 3:30 AM today. The level at Mountain Ash was falling. A peak level of 2.1 metres occurred at 5 AM today. The level at Abercynon was falling. A peak level of 3 metres occurred at 7 AM today.


Flood Alert issued on 16 Feb 2020 07:13
South East
This message will be updated at midday or if the situation changes. At 07:00 AM, the level at Hirwaun was falling. A peak level of 1.3 metres occurred at 2:15 AM today. The level at Aberdare was falling. . A peak level of 2.0 metres occurred at 3:30 AM today. The level at Mountain Ash was rising. The level at Abercynon was rising.


Flood Alert issued on 15 Feb 2020 23:09
South East
This message will be updated at 7:00 AM or if the situation changes. At 11:00 AM, the level at Hirwaun was rising. The level at Aberdare was rising. The level at Abercynon is steady at 2.24 metres.


Flood Alert issued on 15 Feb 2020 20:09
South East
This message will be updated at 10:30 PM or if the situation changes. At 8 PM, the level at Hirwaun was falling. A peak level of 1.08 metres occurred at 6 PM today. The level at Aberdare was falling. A peak level of 1.7 metres occurred at 6 PM today. The level at Abercynon was rising.


Flood Alert issued on 15 Feb 2020 12:51
South East
This message will be updated at 6:00 PM or if the situation changes. At midday, river levels at Hirwaun, Aberdare, Mountain Ash and Abercynon gauges are rising.


Flood Alert issued on 26 Oct 2019 11:35
South East
This message will be updated at 6:00 PM or if the situation changes. At 11:00 AM, the level at Hirwaun was rising. The level at Aberdare was rising. The level at Mountain Ash was rising. The level at Abercynon was rising.


Flood Alert issued on 26 Oct 2019 06:50
South East
This message will be updated at midday or if the situation changes. At 06:30 AM, the level at Hirwaun was steady. The level at Aberdare was steady. The level at Mountain Ash was steady. The level at Abercynon was steady.


Flood Alert issued on 25 Oct 2019 22:01
South East
This message will be updated at 7:00 AM or if the situation changes. At 9:45 PM, the level at Hirwaun was steady. The level at Aberdare was rising. The level at Mountain Ash was rising. The level at Abercynon was rising.


Flood Alert issued on 25 Oct 2019 18:55
South East
This message will be updated at 10:00 PM or if the situation changes. At 6:45 PM, river levels at Hirwaun, Aberdare, Mountain Ash and Abercynon gauges are rising.


Flood Alert issued on 29 Sep 2019 12:16
South East
This message will be updated at 6:00 PM or if the situation changes. At midday, the level at Hirwaun was falling. A peak level of 1.0 metre occurred at 12:30 AM today. The level at Aberdare was falling. . A peak level of 1.4 metres occurred at 12:15 AM today. The level at Mountain Ash was falling. A peak level of 2.2 metres occurred at 3:00 AM today. The level at Abercynon was falling. A peak level of 1.8 metres occurred at 5:45 AM today.


Flood Alert issued on 29 Sep 2019 06:54
South East
This message will be updated at midday or if the situation changes. At 06:30 AM, the level at Hirwaun was rising. The level at Aberdare was rising. The level at Mountain Ash was steady. The level at Abercynon was steady.


Flood Alert issued on 28 Sep 2019 23:18
South East
This message will be updated at 7:00 AM or if the situation changes. At 11:00 PM, river levels at Hirwaun, Aberdare, Mountain Ash and Abercynon gauges are rising.


Flood Alert issued on 8 Feb 2019 10:32
South East
This message will be updated at 6:00 PM or if the situation changes. At 10:20 AM, river levels at Hirwaun, Aberdare, Mountain Ash and Abercynon gauges are rising.


Flood Alert issued on 18 Dec 2018 14:03
South East
This message will be updated at 6:00 PM or if the situation changes. At 1:45 PM, river levels at Hirwaun, Aberdare, Mountain Ash and Abercynon gauges are rising.


Flood Alert issued on 13 Oct 2018 17:50
South East
This message will be updated at 10:00 PM or if the situation changes. At 5:30PM, the level at Hirwaun was falling. A peak level of 1.2 metres occurred at 9:00 AM today. The level at Aberdare was falling. A peak level of 1.6 metres occurred at 9:30 AM today. The level at Mountain Ash was falling. A peak level of 2.7 metres occurred at 10:45 AM today. The level at Abercynon was falling. A peak level of 2.4 metres occurred at 9:45 AM today.


Flood Alert issued on 13 Oct 2018 11:50
South East
This message will be updated at 6:00 PM or if the situation changes. At midday, the level at Hirwaun was falling. A peak level of 1.2 metres occurred at 9:00 AM today. The level at Aberdare was falling. A peak level of 1.6 metres occurred at 9:30 AM today. The level at Mountain Ash was falling. A peak level of 2.7 metres occurred at 10:45 AM today. The level at Abercynon was falling. A peak level of 2.4 metres occurred at 9:45 AM today.


Flood Alert issued on 13 Oct 2018 06:52
South East
This message will be updated at midday or if the situation changes. At 6:30 AM, the level at Hirwaun was falling. A peak level of 1.18 metres occurred at 12:45 PM yesterday. The level at Aberdare was falling . A peak level of 1.83 metres occurred at 12:45 PM yesterday. The level at Mountain Ash was rising. The level at Abercynon was rising.


Flood Alert issued on 12 Oct 2018 21:42
South East
This message will be updated at 7:00AM or if the situation changes. At9:15 PM, the level at Hirwaun was rising. The level at Aberdare was rising. The level at Mountain Ash was rising. The level at Abercynon was steady. Further rainfall is forecast overnight and tomorrow so river levels may rise again.


Flood Alert issued on 12 Oct 2018 17:27
South East
This message will be updated at 10:00 PM or if the situation changes. At 5:15 PM, the level at Hirwaun was falling. A peak level of 1.18 metres occurred at 12:30 PM today. The level at Aberdare was falling. A peak level of 1.82 metres occurred at 12:45 PM today. The level at Mountain Ash was falling. A peak level of 2.34 metres occurred at 4 PM today. The level at Abercynon was rising. Rainfall is forecast to continue through the night and therefore river levels may rise again.


Flood Alert issued on 12 Oct 2018 10:01
South East
This message will be updated at 6 PM or if the situation changes. At 9:45 AM, the level at Hirwaun was rising. The level at Aberdare was rising. The level at Mountain Ash was rising. The level at Abercynon was rising. A prolonged period of rainfall is expected from Friday morning until Sunday 14th October. River levels are expected to remain high over the weekend.


Flood Alert issued on 20 Sep 2018 19:26
South East
This message will be updated at 7:00 AM or if the situation changes. At 7 PM, the level at Hirwaun was rising. The level at Aberdare was rising. The level at Mountain Ash was rising. The level at Abercynon was rising.