Flood Warning Info - River Severn at Trehelig

Area Description

River Severn at Trehelig.
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:
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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 10 Mar 2020 14:02
South East
This message will be updated at 10:00 PM or if the situation changes. At 1:45 PM, the level at Munlyn was 3.45 metres and steady. The following roads could be affected by flooding; The A4 9 0 at Cilcewydd and the Trehelig Crossroads.


Flood Warning issued on 10 Mar 2020 09:15
South East
This message will be updated at 3:00 PM or if the situation changes. At 9:00 AM, the level at Munlyn was 3.45 metres and rising. The following roads could be affected by flooding; The A4 9 0 at Cilcewydd and the Trehelig Crossroads. The A4 8 3 between Wernllwyd & Sarn-y-bryn-caled and the B4 3 8 1 at Lower Leighton.


Flood Warning issued on 24 Feb 2020 21:30
South East
This message will be updated at 9:00 AM or if the situation changes. At 9:00 PM, the level at Munlyn was 3.6 metres and rising. A peak level of between 3.5 and 3.7 metres is expected to occur overnight. The following roads could be affected by flooding; The A4 9 0 at Cilcewydd and the Trehelig Crossroads.


Flood Warning issued on 24 Feb 2020 19:11
South East
This message will be updated at 10:00 PM or if the situation changes. At 6:50 PM, the level at Munlyn was 3.54 metres and rising. A peak level of between 3.5 and 3.7 metres is expected to occur at 9:00 PM. The following roads could be affected by flooding; The A4 9 0 at Cilcewydd and the Trehelig Crossroads. The A4 8 3 between Wernllwyd & Sarn-y-bryn-caled and the B4 3 8 1 at Lower Leighton.


Flood Warning issued on 23 Feb 2020 14:03
South East
This message will be updated at 10:00 PM or if the situation changes. At 1:30 PM, the level at Munlyn was 3.60 metres and falling. A peak level of 3.61 metres occurred at 12:15 PM today. The following roads could be affected by flooding; The A4 9 0 at Cilcewydd and the Trehelig Crossroads.


Flood Warning issued on 23 Feb 2020 10:06
South East
No additional information available


Flood Warning issued on 16 Feb 2020 19:14
South East
This message will be updated at 10:00 PM or if the situation changes. At 6:30 PM, the level at Munlyn was 3.68 metres and steady. A peak level of 3.91 metres occurred at 1:15 PM today. The following roads could be affected by flooding; The A490 at Cilcewydd and the Trehelig Crossroads.


Flood Warning issued on 16 Feb 2020 15:38
South East
This message will be updated at 7:00 PM or if the situation changes. At 15:30 PM, the level at Munlyn was 3.85 metres and falling. A peak level of 3.91 metres occurred at 1:15 PM today. The following roads could be affected by flooding; The A4 9 0 at Cilcewydd and the Trehelig Crossroads.


Flood Warning issued on 16 Feb 2020 10:26
South East
This message will be updated at 3 PM or if the situation changes. At 10:15 AM, the level at Munlyn was 3.8 metres and steady. The following roads could be affected by flooding; The A490 at Cilcewydd and the Trehelig Crossroads.


Flood Warning issued on 16 Feb 2020 07:46
South East
This message will be updated at 11:00 AM or if the situation changes. At 7:15 AM, the level at Munlyn was 3.61 metres and steady. The following roads could be affected by flooding; The A490 at Cilcewydd and the Trehelig Crossroads.


Flood Warning issued on 16 Feb 2020 02:22
South East
This message will be updated at 8:00 AM or if the situation changes. At 2:00AM, the level at Munlyn was 3.28 metres and rising. The following roads could be affected by flooding; The A490 at Cilcewydd and the Trehelig Crossroads. The A483 between Wernllwyd & Sarn-y-bryn-caled and the B4 381 at Lower Leighton.


Flood Warning issued on 27 Oct 2019 01:36
South East
This message will be updated at 7:30 AM or if the situation changes. At 1:30 AM, the level at Munlyn was 3.4 metres and falling. A peak level of 3.7 metres occurred at 6:30 PM yesterday. The following roads could be affected by flooding; The A4 9 0 at Cilcewydd and the Trehelig Crossroads.


Flood Warning issued on 26 Oct 2019 21:16
South East
This message will be updated at 2:30 AM or if the situation changes. At 9:30 PM, the level at Munlyn was 3.6 metres and steady. The current level is the peak. The following roads could be affected by flooding; The A4 9 0 at Cilcewydd and the Trehelig Crossroads.


Flood Warning issued on 26 Oct 2019 18:30
South East
This message will be updated at 9:30 PM or if the situation changes. At 6:25 PM, the level at Munlyn was 3.6 metres and steady. The current level is expected to be the peak. The following roads could be affected by flooding; The A4 9 0 at Cilcewydd and the Trehelig Crossroads.


Flood Warning issued on 26 Oct 2019 15:30
South East
This message will be updated at 6:30 PM or if the situation changes. At 3:20 PM, the level at Munlyn was 3.6 metres and rising slowly. The following roads could be affected by flooding; The A4 9 0 at Cilcewydd and the Trehelig Crossroads.


Flood Warning issued on 26 Oct 2019 12:38
South East
This message will be updated at 3:30 PM or if the situation changes. At 12:30 PM, the level at Munlyn was 3.4 metres and rising. The following roads could be affected by flooding. The A4 9 0 at Cilcewydd and the Trehelig Crossroads.