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Flood Alert Info - North Gwynedd catchment

Area Description

Areas around the rivers of North West Wales, from Abergwyngregyn to Aberdaron.
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.
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There are no Flood Alerts currently in force for this area. See below for historical flood warnings.
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Area Covered by this Flood Alert

The orange highlighted area on the map below outlines the area covered by this Flood Alert.
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Flood Alert History

Number of historic Flood Alerts that have previously been recorded for this area:
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Historical Flood Alerts for this Area

Flood Alert issued on 23 Feb 2025 15:48
North
Flooding of low-lying land and roads is expected. Rainfall is currently affecting this area. River Levels are above normal levels. We will continue to monitor the situation.

Flood Alert issued on 5 Jan 2025 13:33
North
Rainfall is currently affecting this area. We will continue to monitor the situation.

Flood Alert issued on 1 Jan 2025 00:56
North
Flooding of low-lying land and roads is expected. Rainfall is currently affecting this area. River Levels will be above normal levels. We will continue to monitor the situation.

Flood Alert issued on 7 Dec 2024 06:30
North
Flooding of low-lying land and roads is expected. Rainfall is currently affecting this area. River Levels will be above normal levels. We will continue to monitor the situation.

Flood Alert issued on 23 Nov 2024 12:00
North
Flooding of low-lying land and roads is expected. Rainfall is currently affecting this area. River Levels are above normal levels. We will continue to monitor the situation.

Flood Alert issued on 9 Apr 2024 04:37
North
River levels are expected to be above normal. Flooding of Low-lying land and roads is expected. We will continue to monitor the situation. You can monitor the situation in your area by using our 'River Levels, Rainfall and Sea Data' on our website. For more information on our Flood Alerts and how we issue them, please visit the ‘How we forecast floods, issue warnings and assess flood risk’ page on our website.

Flood Alert issued on 14 Mar 2024 00:00
North
A period of adverse weather is affecting this region. River levels are expected to be above normal. Flooding of Low-lying land and roads is expected. We will continue to monitor the situation. You can monitor the situation in your area by using our 'River Levels, Rainfall and Sea Data' on our website. For more information on our Flood Alerts and how we issue them, please visit the ‘How we forecast floods, issue warnings and assess flood risk’ page on our website.

Flood Alert issued on 21 Feb 2024 10:12
North
A period of adverse weather is affecting this region. River levels are expected to be above normal. Flooding of Low-lying land and roads is expected. We will continue to monitor the situation. You can monitor the situation in your area by using our 'River Levels, Rainfall and Sea Data' on our website. For more information on our Flood Alerts and how we issue them, please visit the ‘How we forecast floods, issue warnings and assess flood risk’ page on our website.

Flood Alert issued on 29 Jan 2024 15:01
North
A period of adverse weather is affecting this region. River levels are expected to be above normal. Flooding of Low-lying land and roads is expected. We will continue to monitor the situation. You can monitor the situation in your area by using our 'River Levels, Rainfall and Sea Data' on our website. For more information on our Flood Alerts and how we issue them, please visit the ‘How we forecast floods, issue warnings and assess flood risk’ page on our website.

Flood Alert issued on 21 Jan 2024 16:29
North
Storm Isha is affecting this region. River levels are expected to be above normal. Flooding of Low-lying land and roads is expected. . We will continue to monitor the situation. You can monitor the situation in your area by using our 'River Levels, Rainfall and Sea Data' on our website. For more information on our Flood Alerts and how we issue them, please visit the ‘How we forecast floods, issue warnings and assess flood risk’ page on our website.

Flood Alert issued on 27 Dec 2023 19:49
North
River levels are expected to be above normal. Flooding of Low-lying land and roads is expected. We will continue to monitor the situation. You can monitor the situation in your area by using our 'River Levels, Rainfall and Sea Data' on our website. For more information on our Flood Alerts and how we issue them, please visit the ‘How we forecast floods, issue warnings and assess flood risk’ page on our website.

Flood Alert issued on 12 Dec 2023 19:47
North
River levels are expected to be above normal. Flooding of Low-lying land and roads is expected. We will continue to monitor the situation. You can monitor the situation in your area by using our 'River Levels, Rainfall and Sea Data' on our website. For more information on our Flood Alerts and how we issue them, please visit the ‘How we forecast floods, issue warnings and assess flood risk’ page on our website.

Flood Alert issued on 20 Oct 2023 23:24
North
A period of adverse weather is affecting this region. River levels are expected to be above normal. Flooding of low-lying land and roads is expected. We will continue to monitor the situation. You can monitor the situation in your area by using our 'River Levels, Rainfall and Sea Data' on our website. For more information on our Flood Alerts and how we issue them, please visit the ‘How we forecast floods, issue warnings and assess flood risk’ page on our website.

Flood Alert issued on 19 Sep 2023 20:22
North
River levels are expected to be above normal. Flooding of Low-lying land and roads is expected. We will continue to monitor the situation. You can monitor the situation in your area by using our 'River Levels, Rainfall and Sea Data' on our website. For more information on our Flood Alerts and how we issue them, please visit the ‘How we forecast floods, issue warnings and assess flood risk’ page on our website.

Flood Alert issued on 22 Mar 2023 03:38
North
A period of adverse weather is affecting this region. River levels are expected to be above normal. Flooding of Low-lying land and roads is expected. . We will continue to monitor the situation. You can monitor the situation in your area by using our 'River Levels, Rainfall and Sea Data' on our website. For more information on our Flood Alerts and how we issue them, please visit the ‘How we forecast floods, issue warnings and assess flood risk’ page on our website.

Flood Alert issued on 14 Jan 2023 12:19
North
River levels are expected to be above normal. Flooding of Low-lying land and roads is expected. We will continue to monitor the situation. You can monitor the situation in your area by using our 'River Levels, Rainfall and Sea Data' on our website. For more information on our Flood Alerts and how we issue them, please visit the ‘How we forecast floods, issue warnings and assess flood risk’ page on our website.

Flood Alert issued on 10 Jan 2023 11:48
North
River levels are expected to be above normal. Flooding of Low-lying land and roads is expected. We will continue to monitor the situation. You can monitor the situation in your area by using our 'River Levels, Rainfall and Sea Data' on our website. For more information on our Flood Alerts and how we issue them, please visit the ‘How we forecast floods, issue warnings and assess flood risk’ page on our website.

Flood Alert issued on 31 Dec 2022 16:45
North
River levels are expected to be above normal. Flooding of Low-lying land and roads is expected. . We will continue to monitor the situation. You can monitor the situation in your area by using our 'River Levels, Rainfall and Sea Data' on our website. For more information on our Flood Alerts and how we issue them, please visit the ‘How we forecast floods, issue warnings and assess flood risk’ page on our website.

Flood Alert issued on 29 Dec 2022 15:55
North
River levels are expected to be above normal. Flooding of Low-lying land and roads is expected. . We will continue to monitor the situation. You can monitor the situation in your area by using our 'River Levels, Rainfall and Sea Data' on our website. For more information on our Flood Alerts and how we issue them, please visit the ‘How we forecast floods, issue warnings and assess flood risk’ page on our website.

Flood Alert issued on 27 Dec 2022 17:35
North
River levels are expected to be above normal. Flooding of Low-lying land and roads is expected. We will continue to monitor the situation. You can monitor the situation in your area by using our 'River Levels, Rainfall and Sea Data' on our website. For more information on our Flood Alerts and how we issue them, please visit the ‘How we forecast floods, issue warnings and assess flood risk’ page on our website.

Flood Alert issued on 19 Dec 2022 10:57
North
River levels are expected to be above normal. Flooding of Low-lying land and roads is expected. . We will continue to monitor the situation. You can monitor the situation in your area by using our 'River Levels, Rainfall and Sea Data' on our website. For more information on our Flood Alerts and how we issue them, please visit the ‘How we forecast floods, issue warnings and assess flood risk’ page on our website.

Flood Alert issued on 8 Nov 2022 23:10
North
River levels are expected to be above normal. Flooding of Low-lying land and roads is expected. We will continue to monitor the situation. You can monitor the situation in your area by using our 'River Levels, Rainfall and Sea Data' on our website. For more information on our Flood Alerts and how we issue them, please visit the ‘How we forecast floods, issue warnings and assess flood risk’ page on our website.

Flood Alert issued on 13 Feb 2022 13:25
North
In addition to the area detailed, some localised flooding problems may result from surface water. River levels are above normal. We will continue to monitor the situation.

Flood Alert issued on 30 Dec 2021 18:15
North
In addition to the area detailed, some localised flooding problems may result from surface water. River levels are above normal. We will continue to monitor the situation.

Flood Alert issued on 28 Oct 2021 06:59
North
In addition to the area detailed, some localised flooding problems may result from surface water. River levels are above normal. We will continue to monitor the situation.

Flood Alert issued on 20 Oct 2021 10:59
North
In addition to the area detailed, some localised flooding problems may result from surface water. River levels are above normal. We will continue to monitor the situation.

Flood Alert issued on 2 Oct 2021 17:05
North
In addition to the area detailed, some localised flooding problems may result from surface water. River levels are above normal. We will continue to monitor the situation.

Flood Alert issued on 21 May 2021 06:39
North
In addition to the area detailed, some localised flooding problems may result from surface water. River levels are above normal. We will continue to monitor the situation.

Flood Alert issued on 10 Mar 2021 15:46
North
In addition to the area detailed, some localised flooding problems may result from surface water. River levels are above normal. We will continue to monitor the situation.

Flood Alert issued on 23 Feb 2021 17:22
North
In addition to the area detailed, some localised flooding problems may result from surface water. River levels are above normal. We will continue to monitor the situation.

Flood Alert issued on 19 Feb 2021 16:14
North
In addition to the area detailed, some localised flooding problems may result from surface water. River levels are above normal. We will continue to monitor the situation.

Flood Alert issued on 19 Jan 2021 20:00
North
In addition to the area detailed, some localised flooding problems may result from surface water. River levels are above normal. We will continue to monitor the situation.

Flood Alert issued on 14 Jan 2021 06:29
North
In addition to the area detailed, some localised flooding problems may result from surface water. River levels are above normal. We will continue to monitor the situation.

Flood Alert issued on 18 Dec 2020 09:15
North
In addition to the area detailed, some localised flooding problems may result from surface water. River levels are above normal. We will continue to monitor the situation.

Flood Alert issued on 14 Dec 2020 23:16
North
In addition to the area detailed, some localised flooding problems may result from surface water. River levels are above normal. We will continue to monitor the situation.

Flood Alert issued on 18 Nov 2020 12:31
North
In addition to the area detailed, some localised flooding problems may result from surface water. River levels are above normal. We will continue to monitor the situation.

Flood Alert issued on 29 Oct 2020 20:52
North
In addition to the area detailed, some localised flooding problems may result from surface water. River levels are above normal. We will continue to monitor the situation

Flood Alert issued on 4 Oct 2020 07:50
North
In addition to the area detailed, some localised flooding problems may result from surface water. River levels are above normal. We will continue to monitor the situation.

Flood Alert issued on 28 Aug 2020 06:06
North
In addition to the area detailed, some localised flooding problems may result from surface water. River levels are above normal. We will continue to monitor the situation.

Flood Alert issued on 25 Aug 2020 15:27
North
In addition to the area detailed, some localised flooding problems may result from surface water. River levels are above normal. We will continue to monitor the situation.