Flood Warning Info - River Severn at Trehelig
Area Description
The River Severn including The Gro, Lower Trehelig and Upper 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 Warnings for this Area
Flood Warning issued on 7 Dec 2024 09:24
North
River levels are rising. Flooding to property is expected. Flooding of low-lying land and roads is ongoing. Impacts are ongoing. The A483 between Wernllwyd and Sarn-y- bryn caled, the B4381 at Lower Leighton, the A490 at Cilcewydd and the Trehelig Crossroads and minor roads in the area could be affected by flooding. The River Severn at Trehelig at the Munlyn gauge is expected to peak between 13:00PM today (07/12/2024) and 20:30PM today (07/12/2024). We will continue to monitor the situation. Technical river level forecast information for those who use it; a peak level between 3.55m and 3.75m is possible later this afternoon (07/12/2024). This message will be updated as the situation changes.
Flood Warning issued on 16 Oct 2024 13:17
North
River levels are rising. River levels are expected to rise. Flooding to property is expected. Flooding of low-lying land and roads is ongoing. The A490 at Cilcewydd and the Trehelig Crossroads, and minor roads in the area could be affected by flooding. The A483 between Wernllwyd and Sarn-y- bryn caled, the B4381 at Lower Leighton, the A490 at Cilcewydd and the Trehelig Crossroads and minor roads in the area could be affected by flooding. The River Severn at Trehelig at the Munlyn gauge is expected to rise until approximately 20:00PM this evening. We will continue to monitor the situation. This message will be updated as the situation changes.
Flood Warning issued on 2 Jan 2024 20:11
North
All peak levels are based on the latest forecast as of 7:30 PM. Munlyn was 3.4 metres. A peak level between 3.4 and 3.6 metres is possible this evening. 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. This message will be updated by 10:00 AM.
Flood Warning issued on 21 Oct 2023 05:42
North
All peak levels are based on the latest forecast as of 6:00 AM. Munlyn was 3.7 metres. 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. This message will be updated by 6:00 PM.
Flood Warning issued on 20 Oct 2023 20:20
North
All peak levels are based on the latest forecast as of 08:00 PM. Munlyn was 3.8 metres. A peak level between 3.8 and 3.9 metres is possible this evening. 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 B4381 at Lower Leighton. This message will be updated by 10:00 AM.
Flood Warning issued on 20 Oct 2023 12:55
North
All peak levels are based on the latest forecast as of 13:00 PM.
Munlyn was 3.2 metres. A peak level between 3.5 and 3.7 metres is possible this evening.
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 B4381 at Lower Leighton.
This message will be updated by 6:00 PM.
Flood Warning issued on 12 Jan 2023 10:39
North
All peak levels are based on the latest forecast as of 09:30 AM. Munlyn was 3.41 metres. A peak level between 3.55 and 3.65 metres is possible this morning. A peak level between 3.55 and 3.65 metres is possible this afternoon. 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 B4381 at Lower Leighton. This message will be updated by 6:00 PM.
Flood Warning issued on 11 Jan 2023 23:00
North
All peak levels are based on the latest forecast as of 10:00 PM.
Munlyn was 2.9 metres. A peak level between 3.5 and 3.7 metres is possible overnight.
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 B4381 at Lower Leighton.
This message will be updated by 10:00 AM.
Flood Warning issued on 21 Feb 2022 09:25
North
All peak levels are based on the latest forecast as of 8:30 AM. Munlyn was 3.7 metres.
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 B4381 at Lower Leighton.
This message will be updated by 6:00 PM.
Flood Warning issued on 20 Feb 2022 17:26
North
All peak levels are based on the latest forecast as of 4:00 PM. Munlyn was 3.5 metres. A peak level between 3.7 and 4.0 metres is possible overnight. 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 B4381 at Lower Leighton. This message will be updated by 10:00 AM.
Flood Warning issued on 20 Feb 2022 13:58
North
All peak levels are based on the latest forecast as of 1:30 PM. Munlyn was 3.3 metres. A peak level between 3.5 and 3.7 metres is possible this evening. 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 B4381 at Lower Leighton.
This message will be updated by 6:00 PM.
Flood Warning issued on 8 Dec 2021 20:12
North
All peak levels are based on the latest forecast as of 7:00 PM. Munlyn was 3.43 metres. A peak level between 3.50 and 3.70 metres is possible overnight. 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 3 8 1 at Lower Leighton. This message will be updated by 10:00 AM.
Flood Warning issued on 21 Jan 2021 06:51
North
At 6:45 AM, the level at Munlyn was 3.5 metres and steady. The following roads could be affected by flooding; The A4 9 0 at Cilcewydd and the Trehelig Crossroads. This message will be updated by 6:00 PM or if the situation changes.
Flood Warning issued on 20 Jan 2021 19:00
North
At 6:50 PM, the level at Munlyn was 3.52 metres and rising. A peak level of between 3.55 and 3.65 metres is expected to occur overnight. 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. This message will be updated by 10:00 AM or if the situation changes.