Flood Alert Info - River Ash in Hertfordshire
Area Description
The River Ash in Hertfordshire including Furneux Pelham, Little Hadham, Much Hadham and Wareside.
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
There are no Flood Alerts currently in force for this area. See below for historical flood warnings.
Area Covered by this Flood Alert
The orange highlighted area on the map below outlines the 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 EA, 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 Ware area
Historical Flood Alerts for this Area
Flood Alert issued on 22 Feb 2024 17:35
Ash
River levels are rising on the Ash in Hertfordshire due to heavy rainfall today, Thursday 22 February.
Flooding is forecast to affect locations near the Ash in Hertfordshire, with low lying land expected to be most affected, particularly around Marsdock Mill.
No further significant rainfall is expected overnight.
We will continue to monitor levels closely.
Avoid using low lying footpaths and any bridges near local watercourses and do not attempt to walk or drive through flood water.
This message will be updated by 10am on 23/02/2024, or as the situation changes.
Flood Alert issued on 18 Feb 2024 17:37
Ash
River levels remain high on the Ash (Herts) due to recent heavy rainfall.
Flooding is forecast to affect locations near the Ash on Sunday 18th February, with low lying land expected to be most affected, particularly around Mardocks Mill.
Further light rainfall is forecast this evening and tomorrow, Monday 19th February.
We are monitoring rainfall and river levels and are checking rivers for blockages in the area. Avoid using low lying footpaths and any bridges near local watercourses and do not attempt to walk or drive through flood water.
This message will be updated by 10am on Monday 19th February, or sooner if the situation changes.
Flood Alert issued on 18 Feb 2024 10:31
Ash
River levels have risen quickly on the Ash (Herts) due to heavy rainfall in the early hours of Sunday 18th February.
Flooding is forecast to affect locations near the Ash from 12pm on Sunday 18th February, with low lying land expected to be most affected, particularly around Mardocks Mill.
Further rainfall is forecast throughout the day.
We are monitoring rainfall and river levels and are checking rivers for blockages in the area. Avoid using low lying footpaths and any bridges near local watercourses and do not attempt to walk or drive through flood water.
This message will be updated by 6pm on Sunday 18th February, or sooner if the situation changes.
Flood Alert issued on 9 Feb 2024 18:06
Ash
River levels are high on the Ash (Herts) due to persistent heavy rainfall.
Flooding is forecast to affect locations near the Ash (Herts), with low lying land expected to be most affected, particularly around Mardocks Mill.
Rain showers are forecast through to tomorrow, Saturday 10 February, and river levels are forecast to remain high. We will continue to monitor levels closely.
Avoid using low lying footpaths and any bridges near local watercourses and do not attempt to walk or drive through flood water.
This message will be updated by 10AM on Saturday 10 February, or as the situation changes.
Flood Alert issued on 9 Feb 2024 11:03
Ash
River levels are high on the Ash (Herts) due to persistent heavy rainfall.
Flooding is forecast to affect locations near the Ash (Herts), with low lying land expected to be most affected, particularly around Mardocks Mill.
Further rainfall is forecast throughout today, Friday 9 February, and river levels are forecast to remain high. We will continue to monitor levels closely.
Avoid using low lying footpaths and any bridges near local watercourses and do not attempt to walk or drive through flood water.
This message will be updated by 6PM on Friday 9 February, or as the situation changes.
Flood Alert issued on 8 Feb 2024 19:18
Ash
River levels are high and forecast to rise further on the Ash (Herts).
Flooding is forecast to affect locations near the Ash (Herts), with low lying land expected to be most affected, particularly around Marsdock Mill.
Flooding is possible at Marsdock Mill from 1:00 AM on 09/02/2024.
Further rainfall is forecast throughout the evening.
We will continue to monitor levels closely.
Avoid using low lying footpaths and any bridges near local watercourses and do not attempt to walk or drive through flood water.
This message will be updated by 10:00 AM on 09/02/2024, or as the situation changes.
Flood Alert issued on 5 Jan 2024 20:03
Ash
River levels remain high but are beginning to fall on the River Ash following recent heavy rainfall.
Flooding may continue to affect locations near the River Ash, with low lying land most affected, particularly around Marsdock Mill.
Rainfall is forecast to ease over the weekend and property flooding is not expected.
We are monitoring rainfall and river levels and are checking rivers for blockages in the area.
Avoid using low lying footpaths and any bridges near local watercourses and do not attempt to walk or drive through flood water.
This message will be updated on 6th January, or as the situation changes.
Flood Alert issued on 5 Jan 2024 12:19
Ash
River levels on the Ash are high due to heavy rainfall yesterday.
No property flooding is expected.
River levels have been high at Furneux Pelham, Little Hadham, and Mardock but have now peaked or are dropping.
We will continue to monitor levels closely.
Avoid using low lying footpaths and any bridges near local watercourses and do not attempt to walk or drive through flood water.
This message will be updated this evening on Friday 5th January, or as the situation changes.
Flood Alert issued on 4 Jan 2024 20:06
Ash
Further heavy rainfall this evening, Thursday 4th January, is causing river levels to rise again.
No property flooding is expected.
Flooding is possible at Marsdock Mill.
River levels are forecast to rise at the Furneux Pelham, Little Hadham, and Mardock gauges.
We will continue to monitor levels closely.
Avoid using low lying footpaths and any bridges near local watercourses and do not attempt to walk or drive through flood water.
This message will be updated by 10am on Friday 5th January, or as the situation changes.
Flood Alert issued on 3 Jan 2024 11:56
Ash
River levels are high on the Ash (Herts), due to heavy rainfall.
Flooding is forecast to continue to affect locations near the Ash (Herts), with low lying land expected to be most affected, particularly around Marsdock Mill.
River levels are expected to fall throughout today, Wednesday 3rd January.
We are monitoring rainfall and river levels and are checking rivers for blockages in the area.
Avoid using low lying footpaths and any bridges near local watercourses and do not attempt to walk or drive through flood water.
This message will be updated by 6pm today, Wednesday 3rd January, or as the situation changes.
Flood Alert issued on 2 Jan 2024 19:51
Ash
River levels have risen on the River Ash (Herts) due to heavy rainfall.
Flooding is forecast to affect locations near the River Ash (Herts), with low lying land expected to be most affected, particularly around Marsdock Mill.
River levels are expected to remain high.
We are monitoring rainfall and river levels and are checking rivers for blockages in the area.
Avoid using low lying footpaths and any bridges near local watercourses and do not attempt to walk or drive through flood water.
This message will be updated by 10am tomorrow, Wednesday 3 January, or as the situation changes.
Flood Alert issued on 31 Mar 2023 19:47
Ash
Flooding is possible in this area.
Monitor local water levels and weather conditions. Avoid using low lying footpaths or entering areas prone to flooding. Start acting on your flood plan if you have one.
Environment Agency Flood Warning Officers set the river or tidal levels that have triggered this message. During industrial action this message has been automatically issued based on rising river or tidal levels.
Flood Alert issued on 26 Dec 2021 12:37
Ash
Due to wet weather overnight and this morning, Sunday 26th December, river levels have risen on the River Ash.
The main area of concern is currently Furneux Pelham where river levels have risen the most. There is likely to be flooding to low lying land and roads close to the river. Flooding from surface water, where water gathers and flows off road surfaces, could also occur.
You should avoid walking, cycling or driving through flood water.
We expect the river to remain high throughout today. No flooding to properties is currently expected.
We are constantly monitoring river levels and have staff on standby to attend to any blockages in the river.
This message will be updated this evening or earlier if the situation changes
Flood Alert issued on 30 Jan 2021 20:00
Ash
Over the last few days we have seen heavy rainfall across the area. Further rain has fallen today, Saturday 30 January. Levels are steady on the River Ash but remain high. No further rain is forecast overnight.
The main areas of concern are Furneux Pelham, Little Hadham, Much Hadham and Wareside. Flooding to low lying land and roads close to the river Ash is possible and flooding from surface water may also remain.
We expect the river to remain high overnight and into Sunday, though flooding to properties is not expected.
Take care near the areas of concern and monitor your local weather conditions.
We are continuing to monitor river levels closely and have staff on standby and ready to respond.
This message will be updated tomorrow morning, Sunday 31 January, or earlier if the situation changes.
Flood Alert issued on 30 Jan 2021 11:15
Ash
Over the last few days we have seen heavy rainfall across the area. Levels are steady on the River Ash but remain high. Further rain has fallen today, Saturday 30 January and it is possible river levels will rise once again in response to this.
The main areas of concern are Furneux Pelham, Little Hadham, Much Hadham and Wareside. Flooding to low lying land and roads close to the River Ash is still possible and flooding from surface water could also occur.
We expect the river to remain high throughout Saturday though flooding to properties is not expected.
Take care near the areas of concern and monitor your local weather conditions.
We are continuing to monitor river levels closely and have staff on standby and ready to respond.
This message will be updated on Saturday evening, 30 January or earlier if the situation changes
Flood Alert issued on 29 Jan 2021 21:36
Ash
Over the last 48 hours we have seen heavy rainfall across the area. Levels have begun falling on the River Ash throughout Friday, but remain high. Further heavy rainfall is forecast from the early hours of Saturday 30 January and it is possible river levels will rise once again in response to this.
The main areas of concern are Furneux Pelham, Little Hadham, Much Hadham and Wareside. Flooding to low lying land and roads close to the river Ash is still possible and flooding from surface water could also occur.
We expect the river to remain high throughout Saturday though flooding to properties is not expected.
Take care near the areas of concern and monitor your local weather conditions.
We are continuing to monitor river levels closely and have staff on standby and ready to respond.
This message will be updated at on Saturday morning, 30 January or earlier if the situation changes.
Flood Alert issued on 29 Jan 2021 09:28
Ash
Over the last 48 hours we have seen some heavy rainfall. Levels are no longer rising in the Ash catchment but are still high. Further heavy rainfall is forecast from the early hours of Saturday 30 January and it is possible river levels will rise in response to this.
The main areas of concern are Furneux Pelham, Little Hadham, Much Hadham and Wareside. Flooding to low lying land and roads close to the river Ash is still possible and flooding from surface water could also occur.
We expect the river to remain high throughout Friday though no flooding to properties is forecast and warnings are not expected to be issued.
Take care near the areas of concern and monitor your local weather conditions.
We are continuing to monitor river levels and have staff in the field checking for and clearing blockages.
This message will be updated on Friday evening or earlier if the situation changes.
Flood Alert issued on 28 Jan 2021 19:37
Ash
Over the last 24 hours we have seen some heavy rainfall. Levels are falling in the River Ash catchment but are still higher than normal. Further rainfall is forecast overnight on Thursday 28 January and it is possible river levels will rise again in response to this.
The main areas of concern are Furneux Pelham, Little Hadham, Much Hadham and Wareside. Flooding to low lying land and roads close to the river Ash is still possible and flooding from surface water could also occur.
We expect the river to remain high throughout Thursday night though no flooding to properties is forecast and warnings are not expected to be issued.
Take care near the areas of concern and monitor your local weather conditions.
We are continuing to monitor river levels and have staff in the field checking for and clearing blockages in this location.
This message will be updated on Friday morning or earlier if the situation changes.
Flood Alert issued on 28 Jan 2021 11:28
Ash
Throughout Wednesday night we have seen heavy rainfall across the area. This has caused the river Ash to rise.
The mains areas of concern are Little Hadham, Much Hadham and Wareside. There is likely to be flooding to low lying land and roads close to the river today on Thursday 28 January. Flooding from surface water, where water gathers and flows off road surfaces, could also occur.
We expect the river to remain high on Thursday. Some further rainfall is forecast overnight tonight.
We are constantly monitoring river levels and have staff on standby to clear any blockages.
This message will be updated on Thursday evening or earlier if the situation changes.
Flood Alert issued on 14 Jan 2021 19:44
Ash
Over the last 24 hours we have seen heavy rainfall in the area. This means water levels in the River Ash are still rising. Some further light rainfall is forecast although the heaviest rain has passed.
In the Wareside area there is likely to be flooding to low lying land and roads close to the river throughout the evening and overnight on Thursday 14 January. Flooding from surface water, where water gathers and flows off road surfaces, could also occur.
We expect the river to remain high overnight on Thursday 14 January. We are closely monitoring the situation and will issue a Flood Warning if property flooding is expected. You should avoid walking, cycling or driving through flood water.
Take care near the areas of concern and monitor your local weather conditions.
We are continuing to monitor river levels and have staff in the field checking for and clearing blockages in this location.
This message will be updated on Friday morning or earlier if the situation changes
Flood Alert issued on 14 Jan 2021 07:18
Ash
Overnight into Thursday we have seen consistent heavy rainfall across the area. This has caused rivers and streams to rise across the catchment.
There is likely to be flooding to low lying land and roads close to the river throughout the day on Thursday. Flooding from surface water, where water gathers and flows off road surfaces, could also occur.
We expect the river to remain high today as further rain is forecast during the day. We are closely monitoring the situation and will issue a Flood Warning if property flooding is expected. You should avoid walking, cycling or driving through flood water.
We are constantly monitoring river levels and have staff on standby to attend to any blockages in the river.
This message will be updated this afternoon or earlier if the situation changes.
Flood Alert issued on 16 Feb 2020 22:26
Ash
We have issued a Flood Alert. Rain, associated with Storm Dennis, has been falling overnight and throughout today, Sunday 16 February. The water level on the River Ash has risen as a result. Further rain is predicted throughout the night on Sunday.
Flooding to low-lying land, roads and riverside gardens is possible in Hertfordshire overnight. Surface water flooding may also affect these areas.
We recommend you monitor local water levels and weather conditions. Consider putting your flood plan into action. You should avoid walking, cycling or driving through flood water.
We are continuing to monitor rainfall and river levels. We will update this message on Monday morning or earlier if the situation changes.
Flood Alert issued on 16 Feb 2020 17:30
Ash
We have issued a Flood Alert. Rain, associated with Storm Dennis, has been falling overnight and throughout today, Sunday 16 February. The water level on the River Ash has risen as a result. Further rain is predicted throughout the day on Sunday.
Flooding to low-lying land, roads and riverside gardens is possible in Hertfordshire tonight. Surface water flooding may also affect these areas.
We recommend you monitor local water levels and weather conditions. Consider putting your flood plan into action. You should avoid walking, cycling or driving through flood water.
We are continuing to monitor rainfall and river levels. We will update this message on Sunday night or earlier if the situation changes.
Flood Alert issued on 16 Jan 2020 16:41
Ash
River levels are forecast to rise on the River Ash in Hertfordshire as a result of heavy rainfall. Flooding of low lying land and roads is expected from 20:00 tonight, Thursday 16 January, and into Friday morning.
We expect river levels to remain high overnight and into tomorrow and are closely monitoring the situation. Our incident response staff are monitoring rainfall and river levels and are checking rivers for blockages.
Please monitor local water levels and weather conditions. Consider putting your flood plan into action. You should avoid walking, cycling or driving through flood water.
This message will be updated by 10:00 tomorrow morning, Friday 17 January, or earlier if the situation changes.
Flood Alert issued on 20 Dec 2019 18:23
Ash
River levels are rising on the River Ash in Hertfordshire as a result of persistent heavy rainfall over recent days.
Flooding of roads and low lying land is expected this evening and overnight Friday 20 December. The area most at risk includes low lying land close to rivers in the Wareside area. Surface water flooding is also likely to occur.
Further rainfall is forecast overnight and tomorrow morning and we expect river levels to remain high overnight and into Saturday 21 December.
We are closely monitoring the situation. Our incident response staff are closely monitoring rainfall and river levels and have staff on standby to attend to any blockages in the river.
Please monitor local water levels and weather conditions. Consider putting your flood plan into action. You should avoid walking, cycling or driving through flood water.
This message will be updated by 11:00 on 21/12/2019, or as the situation changes.