Flood Alert Info - River Cothi

Area Description

River Cothi catchment in Carmarthenshire.
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.

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 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 8 May 2021 23:24
South West
The rainfall is forecast to continue until 05:00AM on Sunday 9th of May. The combination of ground conditions, existing river levels and forecast rainfall quantities gives a high risk of flooding of low-lying land during the next 24 hours.


Flood Alert issued on 24 Feb 2021 16:53
South West
River levels in the Cothi are already high on Wednesday 24th February. The heaviest rainfall has passed and river levels continue to drop slowly. A further band of heavier rainfall is expected early evening and although quantities are not significant this may keep river levels high in this area, they may rise again for a short period. With the existing ground conditions and river levels there is a low risk of flooding during the next 12 hours. We will update this message if the situation changes.


Flood Alert issued on 23 Feb 2021 22:47
South West
The rainfall is forecast to continue until 08:00 PM on Wednesday 24th February. The heaviest rainfall is expected to continue. The combination of ground conditions, existing river levels and forecast rainfall quantities gives a high risk of flooding of low-lying land on Tuesday 23rd February during the next 24 hours.


Flood Alert issued on 19 Feb 2021 09:50
South West
The rainfall is forecast to continue through today Friday 19th February and most of Saturday 20th February and the prolonged nature raises the risk of significant impacts. The combination of ground conditions, existing river levels and exceptional rainfall quantities gives a high risk of flooding of low-lying land during the next 24 hours and over the weekend. Many rivers are already at elevated levels from rainfall earlier this week and will react to the quantities forecast.


Flood Alert issued on 17 Feb 2021 22:02
South West
The rainfall is forecast to continue until 06:00 AM on Thursday 18th February. The heaviest rainfall is expected to continue overnight. The combination of ground conditions, existing river levels and forecast rainfall quantities gives a high risk of flooding of low-lying land from Wednesday 17th February over the next 24 hours.


Flood Alert issued on 20 Jan 2021 18:30
South West
Remaining very unsettled this evening, Wednesday 20th January, as Storm Christoph brings further heavy rain over the next few hours. This will increase river levels further. The combination of ground conditions, existing river levels and forecast rainfall quantities gives a high risk of flooding of low-lying land until Thursday 21st January. .


Flood Alert issued on 19 Jan 2021 14:54
South West
Remaining very unsettled today Tuesday 19th January, as Storm Christoph brings further heavy rain this afternoon and especially overnight into Wednesday. Rain will continue throughout Wednesday, increasing river levels further. The combination of ground conditions, existing river levels and forecast rainfall quantities gives a high risk of flooding of low-lying land until Thursday 21st January.


Flood Alert issued on 17 Dec 2020 18:00
South West
River levels are already high in this area and in many places ground conditions are saturated. Further rainfall is expected to arrive in the catchment tonight on Thursday 17th December and will continue until the early hours on Friday 18th December. A further band of heavy rain will arrive Friday morning and continue overnight to Saturday 19th December. This rainfall is expected to be very intense at times and there is a very high risk of flooding during Friday. Further bands of rainfall are expected during Sunday and into Monday and as a result the risk of flooding is likely to continue over the weekend into early next week. You can monitor the situation in this area by using our River Levels Online Service on our website. We will continue to monitor the situation closely and will update this message as the situation changes. .


Flood Alert issued on 15 Dec 2020 17:08
South West
Heavy rainfall is forecast from midnight tonight through until midday tomorrow, Wednesday 16th December 2020. The combination of ground conditions, existing river levels and forecast rainfall quantities gives a high risk of flooding of low-lying land during the next 24 hours.


Flood Alert issued on 13 Dec 2020 14:19
South West
The rainfall is forecast to ease by 3 PM on Sunday 13th December. The combination of ground conditions, existing river levels and forecast rainfall quantities gives a high risk of flooding of low-lying land overnight


Flood Alert issued on 1 Nov 2020 12:51
South West
River levels remain high from Saturday morning's rain, and ground conditions are saturated. The weather remains very unsettled, and there is a continuing risk of flooding. Isolated showers are possible through today Sunday 1st November. Further rainfall is then expected to arrive in the catchment overnight into Monday 2nd November accompanied by gale or severe gale force west or southwesterly winds. Successive bands of rainfall are expected during Sunday and into Monday and as a result the risk of flooding will increase and remain high into early next week. You can monitor the situation in this area by using our River Levels Online Service on our website. We will continue to monitor the situation closely and will update this message as the situation changes.


Flood Alert issued on 31 Oct 2020 12:21
South West
River levels remain high from Saturday morning's rain, and ground conditions are saturated. The weather remains very unsettled, and there is a continuing risk of flooding. Isolated showers are possible through today Saturday 31st October. Further rainfall is then expected to arrive in the catchment overnight into Sunday 1st November accompanied by gale or severe gale force west or southwesterly winds. Successive bands of rainfall are expected during Sunday and into Monday and as a result the risk of flooding will increase and remain high into early next week. You can monitor the situation in this area by using our River Levels Online Service on our website. We will continue to monitor the situation closely and will update this message as the situation changes.


Flood Alert issued on 30 Oct 2020 17:40
South West
River levels are already high in this area and in many places ground conditions are saturated. Further rainfall is expected to arrive in the catchment tonight on Friday 30th October and will continue through the night to Saturday morning the 31st October. This rainfall is expected to be very intense at times and there is a high risk of flooding during Saturday. Further bands of rainfall are expected during Sunday and into Monday and as a result the risk of flooding is likely to continue over the weekend into early next week. You can monitor the situation in this area by using our River Levels Online Service on our website. We will continue to monitor the situation closely and will update this message as the situation changes.


Flood Alert issued on 29 Oct 2020 19:19
South West
The rainfall is forecast to continue until 10:00 AM on Friday the 30th of October, with the heaviest bursts occurring between midnight and 3:00 AM. The River Cothi is expected to reach a peak level between Pontynyswen and Pontargothi at about 5:00 AM on Friday the 30th of October. The combination of ground conditions, existing river levels and forecast rainfall quantities gives a high risk of flooding of low-lying land during the next 24 hours.


Flood Alert issued on 3 Oct 2020 15:50
South West
This Flood Alert is for Sunday 4th October 2020. Heavy rain is forecast overnight and into Sunday morning before clearing Sunday lunchtime. River levels are expected to remain high throughout Sunday. Natural Resources Wales will be monitoring the situation and will advise if further Flood Warnings are required as the event unfolds. The combination of ground conditions, existing river levels and forecast rainfall quantities gives a high risk of flooding of low-lying land over the weekend.


Flood Alert issued on 25 Aug 2020 06:25
South West
The arrival of Storm Francis has brought widespread rainfall to the catchment overnight. The heaviest rainfall is forecast to clear the area by approximately 08:30 AM on Tuesday 25th August, leaving only lighter isolated showers for the remainder of the morning. The combination of ground conditions, existing river levels and forecast rainfall quantities gives a high risk of flooding of low-lying land during the next 24 hours.


Flood Alert issued on 28 Feb 2020 12:16
South West
Heavy rainfall associated with Storm Jorge is impacting the area. The rainfall is forecast to continue overnight until 5am on Saturday 29th February. The combination of ground conditions, existing river levels and forecast rainfall quantities gives a high risk of flooding of low-lying land over the weekend.


Flood Alert issued on 16 Feb 2020 19:09
South West
The heaviest rainfall has now cleared the area, but further showers are expected overnight into Monday 17th February. The combination of ground conditions, existing river levels and forecast rainfall quantities gives a high risk of flooding of low-lying land overnight, over the weekend.


Flood Alert issued on 15 Feb 2020 14:25
South West
The rainfall is forecast to continue until 9:30AM on Sunday the 16th of February. Rain is expected to be largely continuous over this period with some higher intensity bursts expected during Saturday evening and overnight into Sunday. The combination of ground conditions, existing river levels and forecast rainfall quantities gives a high risk of flooding of low-lying land during the next 24 hours.


Flood Alert issued on 9 Feb 2020 13:29
South West
The rainfall is forecast to 2pm on Sunday 9th February. Heavy showers are expected to continue as Storm Ciara takes hold. The combination of ground conditions, existing river levels and forecast rainfall quantities gives a high risk of flooding of low-lying land during the next 24 hours.


Flood Alert issued on 12 Nov 2019 16:02
South West
The rainfall is forecast to continue until 07:00 PM on Tuesday 12th November 2019. The heaviest rainfall is expected to continue. The combination of ground conditions, existing river levels and forecast rainfall quantities gives a high risk of flooding of low-lying land overnight.


Flood Alert issued on 2 Nov 2019 19:46
South West
The rainfall is forecast to continue until 03:00 AM on Sunday 3rd November. The heaviest rainfall is expected to continue for several hours. The combination of ground conditions, existing river levels and forecast rainfall quantities gives a high risk of flooding of low-lying land on Saturday 2nd November evening and into Sunday 3rd November during the next 24 hours.


Flood Alert issued on 26 Oct 2019 20:34
South West
The heaviest rainfall has now cleared the areas. The combination of ground conditions and existing river levels gives a high risk of flooding of low-lying land overnight.


Flood Alert issued on 25 Oct 2019 16:14
South West
The current period of rainfall is forecast to persist until late morning on Saturday the 26th of October, rainfall will become heavy at times. River levels in this area will rise this afternoon and will become high this evening and will remain high through Saturday. The combination of ground conditions, existing river levels and forecast rainfall quantities gives a high risk of flooding of low-lying land over the weekend. We will continue to monitor the situation and we will update this message if the situation changes.


Flood Alert issued on 12 Oct 2019 22:21
South West
A band of persistent rainfall, heavy at times is forecast overnight on Sunday the 13th October. River levels are expected to rise during the early morning and stay high into the afternoon. Only relatively minor impacts are currently expected. The combination of ground conditions, existing river levels and forecast rainfall quantities gives a high risk of flooding of low-lying land during the next 24 hours. We will monitor the situation and update this message if the situation changes.


Flood Alert issued on 29 Sep 2019 00:00
South West
The rainfall is forecast to ease by 1:00 AM on Sunday the 29th of September. Heavy showers are expected to occur at intervals between 1:00 AM and 6:00 AM on Sunday. The combination of ground conditions, existing river levels and forecast rainfall quantities gives a high risk of flooding of low-lying land during the next 24 hours.


Flood Alert issued on 12 Mar 2019 08:22
South West
The rainfall is forecast to continue until 12:30 PM on Tuesday the 12th of March. The combination of ground conditions, existing river levels and forecast rainfall quantities gives a high risk of flooding of low-lying land during the next 24 hours.


Flood Alert issued on 12 Oct 2018 14:07
South West
A prolonged period of rainfall is expected from the early hours of Friday morning 12th of October, until the Sunday the 14th of October. River levels are expected to rise during Friday and will remain high over the weekend giving a high risk of flooding to low-lying land and roads. You can monitor the situation using our river levels online service on the Natural Resources Wales website. We will update this message tomorrow as confidence in the forecast improves.


Flood Alert issued on 12 Oct 2018 11:46
South West
A prolonged period of rainfall is expected from the early hours of Friday morning 12th of September, until the Sunday the 14th of September. River levels are expected to rise during Friday morning and will remain high over the weekend giving a high risk of flooding to low-lying land and roads. You can monitor the situation using our river levels online service on the Natural Resources Wales website. We will update this message tomorrow as confidence in the forecast improves.


Flood Alert issued on 20 Sep 2018 11:46
South West
A widespread area of rain is currently affecting the area. The rainfall is forecast to be prolonged through today, Thursday the 20th of September. Heavy rain is expected at times later. This rain is forecast to become more broken this evening, with the prolonged rainfall eventually clearing to leave more scattered showers during the early hours of Friday morning. The combination of ground conditions, existing river levels and forecast rainfall quantities gives a high risk of flooding of low-lying land this from Thursday afternoon through to Friday morning.


Flood Alert issued on 21 Jan 2018 15:17
South West
The rainfall is forecast to 4:00 PM today, Sunday 21st January. The heaviest rainfall is expected to continue. The combination of ground conditions, existing river levels and forecast rainfall quantities gives a high risk of flooding of low-lying land during the next 12 hours


Flood Alert issued on 15 Sep 2017 09:01
South West
The rainfall is forecast to continue until 6:00 PM on Friday the 15th of September. The combination of ground conditions, existing river levels and forecast rainfall quantities gives a high risk of flooding of low-lying land during the next 12 hours. The level of the River Cothi between Abergorlech and Pontargothi is expected to continue to rise for several hours as the flood peak travels along the watercourse.


Flood Alert issued on 6 Jun 2017 01:20
South West
The rainfall is generally easing; however, further heavy showers are expected into the early hours of Tuesday morning. The combination of ground conditions, existing river levels and forecast rainfall quantities gives a high risk of flooding of low-lying land during the next 12 hours. River Levels are expected to rise slowly through the night, and impacts are expected to be relatively minor. We will update this messages as the situation changes.