Flood Alert Info - Rivers Gwendraeths

Area Description

Rivers in the Gwendraeth Fach and Gwendraeth Fawr catchments.
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 Llanelli 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 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 14 Feb 2021 17:47
South West
The rainfall is forecast to continue until 07:00 PM on Sunday 14th February. The heaviest rainfall has now cleared the area. 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 20 Jan 2021 19:12
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 15:39
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 16 Jan 2021 05:48
South West
The rainfall is forecast to continue until 07:00 AM on Saturday 16th January. 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 27 Dec 2020 01:51
South West
The rainfall is forecast to continue until 2:00 AM on Sunday the 27th of December. 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 17 Dec 2020 18:21
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 15:44
South West
Although river levels have dropped during Tuesday 15th December, further heavy rainfall forecast overnight will likely reach flood alert level once more. The combination of ground conditions, existing river levels and forecast rainfall quantities gives a high risk of flooding of low-lying land over the next 24 hours.


Flood Alert issued on 15 Dec 2020 04:51
South West
English Situation AND Phonetic Situation Heavy and thundery showers are affecting the catchment this morning Tuesday 15th December, but will gradually become less frequent. The combination of ground conditions, existing river levels and forecast rainfall quantities gives a high risk of flooding of low-lying during the next 12 hours.


Flood Alert issued on 13 Dec 2020 09:55
South West
The rainfall is forecast to continue until 3 pm today Sunday 13 December 2020, and will often be heavy and persistent. Remaining unsettled overnight with further heavy showers. The combination of ground conditions, existing river levels and forecast rainfall quantities gives a high risk of flooding of low-lying land both today Sunday 13th December and overnight into Monday.


Flood Alert issued on 15 Nov 2020 06:11
South West
The rainfall is forecast to continue to ease. The heaviest rainfall has now cleared the areas. The combination of ground conditions, existing river levels and forecast rainfall quantities gives a high risk of flooding of low-lying land on Sunday 15th November, during the next 24 hours.


Flood Alert issued on 9 Nov 2020 18:30
South West
River levels have risen in response to heavy showers this afternoon and further showers are forecast overnight. 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 12:42
South West
The weather remains very unsettled, and there is a continuing risk of flooding with saturated ground conditions. Further rainfall is expected today Sunday 1st November, accompanied by severe gale force southwesterly winds. The heaviest and most persistent rainfall will be inland over high ground tonight. This will clear to showery weather during the early hours of Monday 2nd November. 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 14:28
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 Saturday 31st October and will continue through the night to Sunday evening the 1st November. This rainfall is expected to be intense at times and there is a high risk of flooding during Sunday. 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 30 Oct 2020 17:29
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 very 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 20:14
South West
The rainfall is forecast to continue until 11:00 am on Friday the 30th of October. The heaviest rainfall is expected overnight through into Friday 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 24 Oct 2020 17:48
South West
The rainfall is forecast to continue until the early evening on 24 October and then ease. 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 24 Oct 2020 17:48
South West
The rainfall is forecast to continue until the early evening on 24 October and then ease. 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 3 Oct 2020 16:06
South West
Storm Alex will bring further persistent and heavy rain across the Gwendraeth Fach and Gwendraeth Fawr catchments, today Saturday 3rd October. The slow moving nature of this rain is expected to give significant rainfall totals which will result in elevated river levels. Further widespread and significant rain is expected overnight and into Sunday morning 4th October. Again this rain will be slow moving, and the risk of flooding will increase and river levels are then expected to reach Alert levels in your area. Natural Resources Wales officers will monitor the river levels overnight and during Sunday 4th October, providing updates as needed. The combination of ground conditions, existing river levels and forecast rainfall quantities gives a high risk of flooding of low-lying land overnight, and especially Sunday 4th October.


Flood Alert issued on 30 Sep 2020 15:05
South West
The heaviest rainfall has now cleared the areas and is expected to continue to move away to the east but will be followed by heavy showers. 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 25 Aug 2020 04:40
South West
The rainfall is forecast to ease by 11 AM on Tuesday 25th August. 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 24 hours.


Flood Alert issued on 21 Jun 2020 04:12
South West
The rainfall is forecast to continue to ease. The heaviest rainfall has now cleared the areas. 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 24 Feb 2020 08:27
South West
The rainfall is forecast to continue until 11:00AM on Monday 24th February. The heaviest rainfall is expected to continue for the next few hours. The combination of ground conditions, existing river levels and forecast rainfall quantities gives a high risk of flooding of low-lying land on Monday 24th February during the next 12 hours. Land is already saturated following recent flood events and surface water flooding is also possible.


Flood Alert issued on 22 Feb 2020 17:45
South West
This Flood Alert is issued in advance of the rainfall forecast to arrive overnight Saturday 22nd February into Sunday 23rd 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. Land is already saturated following recent flood events and surface water flooding is also possible.


Flood Alert issued on 15 Feb 2020 15:13
South West
The rainfall is forecast to continue until 9:00AM on Sunday the 16th of February. The rain is expected to fall continuously over this period with the possibility of some high-intensity bursts during Saturday evening and Sunday 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 13 Feb 2020 03:15
South West
The rainfall is forecast to continue until 3:30AM on Thursday the 13th of February. 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 14 Jan 2020 13:28
South West
The heaviest showers will continue through the evening. 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 Jan 2020 01:29
South West
The rainfall is forecast to continue overnight, some of which will be heavy and should ease off by early hours on the 9th January. 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 19 Dec 2019 14:11
South West
The rainfall is forecast to continue until 05:00 PM on Thursday 19th December 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 during the next 12 hours, on Thursday 19th December.


Flood Alert issued on 18 Dec 2019 18:51
South West
The rainfall is forecast to continue to ease. The heaviest rainfall has now cleared the area. The combination of ground conditions, existing river levels and forecast rainfall quantities gives a high risk of flooding of low-lying land this evening, Wednesday 18th December 2019.


Flood Alert issued on 12 Dec 2019 08:59
South West
The rainfall is forecast to continue until 01:00 PM today Thursday 12th December 2019. The combination of ground conditions, existing river levels and forecast rainfall quantities gives a high risk of flooding of low-lying land today 12th December 2019 and over the next 12 hours.


Flood Alert issued on 6 Dec 2019 05:23
South West
The rainfall is forecast to continue until 07:00 AM on Friday 6th December. The heaviest rainfall has now cleared the area but further showers are expected during the day. The combination of ground conditions, existing river levels and forecast rainfall quantities gives a high risk of flooding of low-lying land on Friday 6th December during the next 12 hours.


Flood Alert issued on 13 Nov 2019 19:53
South West
The rainfall is forecast to ease by 10:00PM on Wednesday 13th November. 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 07:16
South West
The rainfall is forecast to ease by 08:00 AM on Saturday 2nd November. A further band of rainfall is expected later this afternoon, the situation will be monitored. 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 25 Oct 2019 16:47
South West
The rainfall is forecast to continue until late morning on Saturday 26th October. Rainfall will be heavy at times and river levels will rise this evening and 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. Surface water will hamper driving conditions


Flood Alert issued on 5 Oct 2019 23:18
South West
The heaviest rainfall has now cleared the areas and will continue to ease over the next couple of hours. 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 30 Sep 2019 18:49
South West
The rainfall is forecast to ease by 09:00PM on Monday 30th 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.


Flood Alert issued on 28 Sep 2019 21:44
South West
The rainfall is forecast to continue until 01:00AM on Sunday 29th September 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 and tomorrow morning, Sunday 29th September 2019.


Flood Alert issued on 16 Aug 2019 16:12
South West
The rainfall is forecast to ease by 06:00 PM on Friday 16th August 2019. The combination of ground conditions, existing river levels and forecast rainfall quantities gives a high risk of flooding of low-lying land on Friday 16th August during the next 12 hours.


Flood Alert issued on 5 Feb 2019 20:10
South West
The rainfall is forecast to ease by 10 pm on Tuesday 5th February as the heaviest rainfall leaves the area. 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 18 Jan 2019 15:30
South West
The rainfall is forecast to continue until 06:00PM on Friday 18th of January, however heavy isolated showers are forecast overnight. 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 18 Dec 2018 12:48
South West
The rainfall is forecast to continue until 03:00 PM on Tuesday 18th December. 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 6 Dec 2018 17:28
South West
A band of heavy rain will pass through the Gwendraeth Fach and Gwendraeth Fawr catchments between 01:00 AM and 6:00 AM on Friday the 7th of December. There is considerable uncertainty over the timing of the flood peaks at the current time. 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 5 Dec 2018 11:06
South West
The rainfall is forecast to continue until 2:30 PM on Wednesday 5th December. The heaviest rainfall is expected to continue for the remainder of this morning. The combination of ground conditions, existing river levels and forecast rainfall quantities gives a high risk of flooding of low-lying land on Wednesday 5th December during the next 24 hours.


Flood Alert issued on 12 Nov 2018 12:58
South West
Scattered heavy and potentially thundery downpours are expected to continue to move across the catchment on strong south-westerly winds this afternoon and evening, Monday 12th November 2018. 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 9 Nov 2018 18:27
South West
The rainfall is forecast to continue until at least 8:30 PM on Friday 9th November 2018. Some very heavy rainfall may continue to be experienced before this clears to the east. 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 8 Nov 2018 12:46
South West
Heavy and thundery showers may affect the area this afternoon, Thursday 8th November 2018. 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 7 Nov 2018 04:41
South West
The rainfall is forecast to continue until 9am on Wednesday 7th November. 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 11 Oct 2018 18:08
South West
A prolonged period of rainfall is expected from the early hours of Friday morning 12th October until Sunday 14th October. 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 11 Oct 2018 17:38
South West
A prolonged period of rainfall is expected from the early hours of Friday morning 12th September until Sunday 14th 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 14:03
South West
Heavy rainfall is forecast to affect most of Wales throughout today, Thursday the 20th of September, clearing to more scattered showers overnight. The combination of ground conditions, existing river levels and forecast rainfall quantities gives a high risk of flooding of low-lying land from Thursday afternoon through to Friday morning.


Flood Alert issued on 2 May 2018 03:48
South West
The rainfall is forecast to continue until 07 : 30 AM on Wednesday 2nd May. 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 Wednesday 2nd May during the next 12 hours.


Flood Alert issued on 2 Apr 2018 05:24
South West
The rainfall is forecast to continue until 09 : 00 AM on Monday 2nd April 2018, with further heavy showers throughout the day on Monday . 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 on Monday 2nd April .


Flood Alert issued on 16 Mar 2018 01:52
South West
The rainfall is forecast to ease by 04 :00 AM on Friday 16th March 2018, turning heavy before finally clearing the area. 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 10 Mar 2018 01:20
South West
The rainfall is forecast to continue until about 2 : 00 AM on Saturday 10th March. The heaviest rainfall should cleared the area after this time. The combination of ground conditions, existing river levels and forecast rainfall quantities gives a high risk of flooding of low-lying land on Saturday 10th March during the next 12 hours


Flood Alert issued on 13 Feb 2018 07:25
South West
Rivers in Pembrokeshire and Carmarthenshire are responding to heavy overnight rainfall which is forecast to move in an easterly direction across Wales and clear Carmarthenshire by mid-day today. The combination of ground conditions, existing river levels and forecast rainfall quantities gives a high risk of flooding of low-lying land today Tuesday 13th February 2018 over the next 12 hours.


Flood Alert issued on 21 Jan 2018 14:36
South West
The rainfall is forecast to continue until 4:30 p.m. on Sunday the 21st of January. The rainfall is expected to ease over the next couple of hours. 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 Jan 2018 10:13
South West
The rainfall is forecast to ease by 11 :00 AM on Monday 15th Jan. The heaviest rainfall has now cleared the area . 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 2 Jan 2018 21:22
South West
The rainfall is forecast to ease by 11:00PM on Tuesday 2nd Jan, although further heavy showers are forecast overnight. 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 26 Dec 2017 19:57
South West
The rainfall is forecast to continue until early hours of Wednesday 27th December 2017. 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 through the night and over the next 24 hours. We will update this messages as the situation changes.


Flood Alert issued on 10 Dec 2017 08:15
South West
The rainfall is forecast to continue at times this morning, with some heavier rain possible. 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, today Sunday 10th December 2017.


Flood Alert issued on 7 Dec 2017 07:10
South West
The rainfall is forecast to ease by 8 AM Thursday 7th December 2017. Further heavy rainfall is expected at times until then. The combination of ground conditions, existing river levels and forecast rainfall quantities gives a high risk of flooding of low-lying land this morning.


Flood Alert issued on 24 Oct 2017 14:40
South West
The rainfall is forecast to continue until 04:00 AM on Wednesday 25th October. 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 15 Sep 2017 08:33
South West
The persistent rainfall is forecast to ease gradually this morning, however scattered showers will remain through the day and could still be heavy. 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 7 Jun 2017 23:39
South West
A series of heavy showers are passing through the area. The heaviest rain is expected during tomorrow mornings rush hour. . 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 5 Jun 2017 19:27
South West
The rainfall is forecast to continue until the early hours of Tuesday 6th June, with heavy showers throughout the night. The combination of ground conditions, existing river levels and forecast rainfall quantities gives a high risk of flooding of low-lying land overnight.