Flood Warning Info - South Cornwall coast from Lizard Point to Gribbin Head excluding Truro City

Area Description

Lizard Point to Gribbin Head including the tidal rivers Helford and Fal, Mawnan Smith, Falmouth, Penryn, Flushing, Mylor, Calenick, Tresillian, St Mawes, Ruan Lanihorne, Portscatho, Portloe, Portholland, Mevagissey and Par.
This is a Flood Warning Area. For this area, you may receive Flood Warnings or Severe Flood Warnings.
Get a Flood Insurance Quote for your Home
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.
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 Warning History

Number of historic Flood Warnings that have previously been recorded for this area:
We can provide a Flood Insurance Quote for properties in the Truro area

Historical Flood Warnings for this Area

Flood Warning issued on 20 Oct 2024 12:29
South Cornwall coast
Flooding of low lying land and roads is possible over Sunday evening’s high tide due to spring tides and forecast strong wind and waves. Exposed coastal areas are particularly at risk. High water at Falmouth is at 8:07pm on Sunday evening, times of high water may vary along the coast, flooding is possible up to 1 hour either side of high tide. Following some minor flood impacts over Sunday morning’s high tide, tide levels are lower, and weather conditions are expected to ease by Sunday evening’s high tide. However, flooding to low lying land and roads is still possible, and a flood alert remains in force. From Monday no further flooding is forecast. Do not walk or drive through flood water or waves. Consider installing flood protection products. We are monitoring the situation and will update this information by 11am on Monday morning or if the situation changes.  Detailed tidal information; Forecast high tide level at Falmouth is 2.52m AOD.  Expect tide levels to be 0.1 to 0.2m above tide table level, with force 6 south-westerly winds and offshore wave heights of up to 2.9m.


Flood Warning issued on 19 Oct 2024 12:32
South Cornwall coast
Flooding is expected over the high tide on Sunday morning due to high spring tides and forecast strong wind and waves. High water at Falmouth is at 7:41am on Sunday morning, times of high water vary along the coast, flooding is possible up to 1 hour either side of high tide. Exposed coastal communities are particularly at risk over Sunday morning's tide due to forecast wind and wave conditions. Flooding to low lying coastal land and roads is also possible on Saturday evening, conditions will ease for Sunday evening’s tide, however minor flooding is still possible. A flood alert remains in force over the weekend. Do not walk or drive through flood water or waves. Consider installing flood protection products such as flood boards or sandbags. We are monitoring the situation and will update this information by 11am on Sunday morning or if the situation changes. Detailed tidal information; Forecast high tide level at Falmouth is 2.75 mAOD. Expect tide levels to be 0.3 to 0.4m above tide table level, with force 7 Southerly winds and offshore wave heights of up to 2.5m.


Flood Warning issued on 18 Oct 2024 13:14
South Cornwall coast
Flooding is expected over the high tide on Friday evening. High water at Falmouth is at 6.44pm, times of high water will vary along the coast. Spring tides peak on Friday evening and are forecast to cause flooding to property between 5:44pm and 7:44pm. Low lying coastal communities are particularly at risk including St Mawes, Portmellon, and Mevagissey. Do not walk or drive through flood water or waves. Consider installing flood protection products such as flood boards or sandbags. Tide levels are lower for Saturday’s high tides, however, flooding to low lying land and roads is possible and a flood alert remains in force. Unsettled weather conditions may cause further flooding over Sunday morning’s high tide, flood warnings will be reissued where required. We are monitoring the situation and will update this information by 11am Saturday, or if the situation changes. Detailed tidal information; Forecast high tide level at Falmouth is 2.92 mAOD. Expect tide levels to be 0.1 to 0.2m above tide table level, with force 5 Southerly winds and offshore wave heights of up to 2m.


Flood Warning issued on 8 Apr 2024 12:17
South Cornwall coast
Flooding is expected over high tide on the evening of Monday 8th April and the morning of Tuesday 9th April. High water at Falmouth is at 18:10 on Monday evening and 06:33 on Tuesday morning, times of high water will vary along the coast. Force 7 southerly winds rapidly switching to northerly over Monday evening’s high tide. Force 8 north westerly winds are expected on Tuesday morning’s high tide. Wave heights of up to 5m are forecast with flooding to properties possible two hours either side of high tide. Expect tides to be up to 550mm higher than predicted due to weather conditions. Large waves, spray and standing water are likely, take care near the coast. Locations particularly at risk are low lying areas including the A39 at Perranarworthal and exposed coastal locations. We will continue to monitor the situation and issue an update by 11am on Tuesday morning. Detailed tidal information for those who use it; forecast high tide level at Falmouth is 2.98mAOD, 0.55m above astronomical tide level on Monday evening and 2.92mAOD, 0.15m above astronomical tide level on Tuesday morning.


Flood Warning issued on 7 Apr 2024 19:12
South Cornwall coast
Flooding is expected over the high tide on Monday morning, 8th April. High water at Falmouth is at 05:49am, times of high water will vary along the coast. Force 6 southerly winds and wave heights of up to 4m are forecast and flooding to properties is possible between 4am and 6am. Conditions may apply two hours either side of the high tide. Expect tides to be around 400mm higher than predicted due to weather conditions. Large waves, spray and standing water are likely, so take care near the coast. Do not drive through flood water or waves. Locations particularly at risk include low lying areas including the A39 at Perranarworthal, and exposed coastal locations including Portmellon seafront, Mevagissey, and Portholland. Further flood warnings are likely for subsequent tides so please keep up to date with local weather conditions. We will monitor the situation and issue an update by 11am on Monday 8th. Detailed tidal information; The forecast high tide level at Falmouth is 2.98mAOD, 0.38m above astronomical tide level.


Flood Warning issued on 10 Mar 2024 12:13
South Cornwall coast
Flooding is expected over the morning high tides on Monday 11th March and Tuesday 12th March. High water at Newlyn is at 05:15 on Monday and 05:57 on Tuesday. Times of high water will vary along the coast. High spring tides coinciding with low pressure and moderate north-westerly winds on Monday morning could result in dangerous conditions on the coast, with overtopping of low-lying land and quaysides expected and property flooding possible within 1-2 hours either side of high tide. Expect tides to be around 200mm higher than predicted due to weather conditions. Locations particularly at risk include low lying areas along the rivers Helford and Fal, and exposed coastal locations including Portmellon, Mevagissey Harbour, and Portholland. Do not drive through flood water or waves.  The tidal gates at Flushing have been closed. We are monitoring the situation and will issue daily updates if the situation changes. Detailed tidal information for those who use it; The forecast high tide level at Newlyn on Monday morning is 3.16m AOD, this is 0.17 metres above astronomical tide level.


Flood Warning issued on 12 Feb 2024 12:35
South Cornwall coast
Flooding is expected over the morning high tide on Tuesday 13th February. High water at Newlyn is at 07:02 on Tuesday morning. Times of high water will vary along the coast.  A significant high spring tide is expected due to a low-pressure system and will be accompanied by Force 6 southerly winds and wave heights of around 2.5m. This could result in significant overtopping of low-lying land and quaysides within 1-2 hours either side of high tide. Expect tides to be around 250mm higher than predicted due to weather conditions. Please take action to protect yourself and your property and monitor local weather conditions. Locations particularly at risk include low lying areas along the tidal rivers Helford and Fal, including the A39 at Perranarworthal, and exposed coastal locations including Portmellon, Mevagissey Harbour, and Portholland. We are monitoring the situation and will issue daily updates if the situation changes. Detailed tidal information: The forecast high tide level at Newlyn on Tuesday morning is 3.18m AOD, this is 0.28m above astronomical tide level.


Flood Warning issued on 11 Feb 2024 11:54
South Cornwall coast
Flooding is expected over the morning high tide on Monday 12th February.  High water at Newlyn is at 06:19 on Monday morning. Times of high water will vary along the coast.  A significant high spring tide is expected due to a low-pressure system, with accompanying Force 5 north-westerly winds and wave heights of around 2m. This could result in significant overtopping of low-lying land and quaysides, and property flooding possible 1-2 hours either side of high tide. Expect tides to be around 250mm higher than predicted due to weather conditions. Take action to protect yourself and your property and monitor local weather conditions. Locations at risk include low lying areas along the Helford and Fal rivers, the A39 at Perranarworthal, and exposed coastal locations including Portmellon, Mevagissey Harbour, and Portholland. We are monitoring the situation and will issue daily updates if the situation changes.  Detailed tidal information for those who use it; The forecast high tide level at Newlyn on Sunday morning is 3.21m AOD, this is 0.25m above astronomical tide level.


Flood Warning issued on 9 Feb 2024 15:37
South Cornwall coast
Flooding is expected over the morning high tides on Saturday 10th, Monday 12th, and Tuesday 13th February.  High water at Newlyn is at 04:49 on Saturday morning. Times of high water will vary along the coast. A significant tidal surge is expected due to low pressure, and will be accompanied by Force 6 southerly winds and wave heights up to 3.6m on Saturday morning. This could result in dangerous conditions on the coast with overtopping of low-lying land and quaysides expected and property flooding possible within 1-2 hours either side of high tide. Expect tides to be around 500mm higher than predicted due to weather conditions. Locations particularly at risk include low lying areas along the tidal rivers Helford and Fal, including the A39 at Perranarworthal, and exposed coastal locations including Portmellon seafront, Mevagissey Harbour area, and Portholland. Do not drive through flood water or waves. The tidal gates at Flushing have been closed. We are monitoring the situation and will issue daily updates if the situation changes.


Flood Warning issued on 31 Oct 2023 18:01
South Cornwall coast
Peak spring tides from the weekend have passed, however the risk of coastal flooding increases again from Wednesday. Storm Ciaran is set to bring strong winds, significant waves and a tidal surge leading to an increased risk of coastal flooding. Key tides of concern are on Wednesday evening, 1st Nov at 19:28 and Thursday morning, 2nd Nov at 07:39. The times given are for Truro and will vary along the coast. Possibly significant wind and wave overtopping could result in dangerous conditions on the coastline with the potential for fast flowing water. Take care near the coastline and do not drive through waves or flood water.  Please continue to monitor your local weather conditions and take care in the areas of concern.   Low lying areas along the Helford & Fal, including A39 at Perranarworthal & exposed coastal locations including Portmellon seafront, Mevagissey Harbour area & Portholland are particularly at risk.  We are monitoring the situation. Please check online for updates.


Flood Warning issued on 30 Oct 2023 15:11
South Cornwall coast
Flooding is expected over the high tide on Monday evening 30 Oct so this Flood Warning remains in force. Time of high water at Truro is 18:13. Tide levels this evening are not expected to be as high as those seen over the weekend. From Wednesday however, conditions are expected to worsen due to storm Ciaran. Therefore please continue to monitor your local weather conditions and take care in the areas of concern High water at Truro is 18:13 Mon, local time. Times will vary along the coast. Flooding may occur up to 2 hours either side of high tide. Expect tides to be ~ 500mm higher than predicted due to weather conditions.  Moderate waves and spray are likely. Take care near the coast.   Do not drive through flood water or waves.   Low lying areas along the Helford & Fal, including A39 at Perranarworthal & exposed coastal locations including Portmellon seafront, Mevagissey Harbour area & Portholland are particularly at risk. Tidal gates at Flushing are closed.   Conditions should ease for Tues mornings high tide. We are monitoring the situation. Please check online for updates


Flood Warning issued on 29 Oct 2023 10:55
South Cornwall coast
Flooding is expected on all high tides from Sun 29 to pm Mon 30 October.   High spring tides and a large tidal surge will result in significantly high water levels during this period. Forecast levels for Sunday evening are similar to Saturday evening when flooding was observed in several locations. Offshore wave heights up to 5m combined with Force 6-7 winds may exacerbate any flooding.   High water at Truro is 17:33 Sun, 05:54 and 18:13 Mon, local time. Times will vary along the coast. Flooding may occur up to 2 hours either side of high tide. Expect tides to be ~ 600mm higher than predicted due to weather conditions.  Moderate waves and spray are likely. Take care near the coast.   Do not drive through flood water or waves.   Low lying areas along the Helford & Fal, including A39 at Perranarworthal & exposed coastal locations including Portmellon seafront, Mevagissey Harbour area & Portholland are particularly at risk. Tidal gates at Flushing are closed.  Conditions should ease for Tues mornings high tide. We are monitoring the situation. Please check online for updates


Flood Warning issued on 28 Oct 2023 11:18
South Cornwall coast
Flooding is expected on all high tides from pm Sat 28 to pm Mon 30 October. High spring tides combined with a large tidal surge will result in significantly high water levels during this period. Levels forecast for evening tides Saturday & Sunday are of particular concern. Waves combined with Force 5–7 winds may exacerbate any flooding. High water at Truro is 17:52 Sat, 05:15 & 17:33 Sun, 05:54 & 18:13 Mon, local time. Times will vary along the coast. Flooding may occur up to 2 hours either side of high tides. Expect tides to be ~ 500mm higher than predicted due to weather conditions. Moderate waves and spray are likely. Take care near the coast. There may be localised standing water on roads.  Do not drive through flood water or waves. Low lying areas along the Helford & Fal, including A39 at Perranarworthal & exposed coastal locations including Portmellon seafront, Mevagissey Harbour area & Portholland are particularly at risk. Tidal gates at Flushing are closed. Conditions should ease for Tues am high tide. We are monitoring the situation. Please check online for updates


Flood Warning issued on 28 Oct 2023 06:13
South Cornwall coast
Flooding is expected in this area. This means properties are at risk of flooding. Please take action to protect yourself and your property and monitor local weather and river conditions. Avoid contact with, walking or driving through flood water. Consider activating any property flood protection products you may have. 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 Warning issued on 1 Sep 2023 07:43
South Cornwall coast
Flooding is expected in this area. This means properties are at risk of flooding. Please take action to protect yourself and your property and monitor local weather and river conditions. Avoid contact with, walking or driving through flood water. Consider activating any property flood protection products you may have. 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 Warning issued on 21 Mar 2023 18:06
South Cornwall coast
Flooding is expected in this area. This means properties are at risk of flooding. Please take action to protect yourself and your property and monitor local weather and river conditions. Avoid contact with, walking or driving through flood water. Consider activating any property flood protection products you may have. 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 Warning issued on 15 Dec 2020 15:36
South Cornwall Coast
Flooding is expected over the high tide tomorrow morning, Wednesday 16th December. High water at Falmouth is at 6:05am, times of high water will vary along the coast. Force 8 Southerly winds and offshore wave heights of up to 6m are forecast to cause flooding to properties. Conditions may apply two hours either side of the high tide. Expect tides to be around 450mm higher than predicted due to weather conditions. Large waves and spray are likely so take care near coastal paths and promenades. This may cause localised standing water on roads. Locations particular at risk include Commercial Road Penryn, Trefusis Road Flushing, the A39 at Perranarworthal, the A390 at Tresillian and St Mawes. Heavy rain is forecast over high tide which may lead to localised surface water flooding due to tide locking. Do not drive through flood water or waves. The tidal gates at Flushing will be closed. We are continuing to monitor the situation and will update this message on Wednesday morning.


Flood Warning issued on 15 Nov 2020 12:29
South Cornwall Coast
Flooding is expected over the high tide this afternoon, Sunday 15 November. High Spring tides, strong winds and large waves, exceeding 6.5m, are expected to cause property flooding in low lying or exposed locations. High water at Falmouth is at 17:12. Times of high water will vary along the coast. Unsettled weather is forecast and will bring force 8 west north westerly winds, Due to the forecast weather conditions the tides could be 200mm higher than published, resulting in wave overtopping and sea spray in exposed locations. Locations particularly at risk are Perranarworthal, Mevagissey, Portmellon, Gorran Haven and St Mawes. Following this evening’s high water, tide levels will drop over the next few days. However, weather will remain unsettled with large waves and strong winds expected. We will continue to monitor the situation and will update this information on Monday morning. Another flood alert may be issued for this area.


Flood Warning issued on 14 Nov 2020 11:56
South Cornwall Coast
Flooding is expected over the high tides this afternoon 14 November and for both high tides Sunday 15 November. High Spring tides, strong winds and large waves are expected to cause property flooding in low lying or exposed locations on Saturday afternoon and during Sunday High water at Falmouth this afternoon is at 16:25, Sunday at 04:47 and 17:12. Times of high water will vary along the coast Unsettled weather is forecast and will bring force 6 south westerly winds, possibly increasing to force 8 on Sunday. Large waves are also expected, causing tides to be 350mm higher than published, resulting in wave overtopping and sea spray in exposed locations. Locations particularly at risk are Perranarworthal, Mevagissey, Portmellon, Gorran Haven and St Mawes. People are advised to avoid low lying and exposed coastal areas. We will continue to monitor the situation, and will update this information on Sunday morning or if the situation changes


Flood Warning issued on 19 Oct 2020 11:23
South Cornwall Coast
Flooding is expected over the high tides on Monday evening,19/10/20 and Tuesday morning, 20/10/20. High Spring tides, strong winds and large waves are expected to cause property flooding in low lying or exposed locations on Monday evening and Tuesday morning. High water at Falmouth on Monday evening is at 20:00 and Tuesday morning at 08:17. Times of high water will vary along the coast. Unsettled weather is forecast from Monday afternoon and will bring force 6 southerly winds, possibly increasing to force 8 on Tuesday. Large waves are also expected, causing tides to be higher than published, resulting in wave overtopping and sea spray in exposed locations. Locations particularly at risk include Mevagissey, Portmellon, Gorran Haven and St Mawes. People are advised to avoid low lying and exposed coastal areas. We will continue to monitor the situation and will update this information by Tuesday afternoon or if the situation changes.


Flood Warning issued on 18 Sep 2020 11:48
South Cornwall Coast
Flooding is expected for this evenings high tide on Friday 18th September.  High water at Falmouth is at 18:54. Times of high water vary along the coast. Tides are rising to spring tides. High tide levels, along with force 6 easterly and associated south coast easterly waves are forecast. This could result in overtopping and spray along the coast. Flooding of property and roads at Flushing, Penryn, Callenick, Mevagissey, Pentewan and Gorran Haven is likely due to wave and spray overtopping. Roads may also be affected including the A39 at Perranarworthal and the A390 at Tresillian. Install flood protection products, such as flood barriers and air brick covers.  People are advised to stay away from risk areas and take care next to the coast. The FLOOD ALERT will remain in place for tides on Saturday 19th September. We will monitor the situation and update this message if conditions change.


Flood Warning issued on 20 Aug 2020 22:04
South Cornwall Coast
Flooding is expected over the high tides on Friday morning and Friday evening. High Spring tides, strong winds and large waves are expected to cause property flooding. High water at Falmouth on Friday is at 07:37 and 19:56. Flooding is possible 2 hours either side of high tide. Times of high water will vary along the coast. Storm Ellen is forecast to bring large waves and force 7 South Westerly winds on Friday. Tides may be higher than predicted along the coast, with wave overtopping and sea spray in exposed locations. Locations particularly at risk include the Fal Estuary, and locations exposed to Southerly winds. High numbers of visitors in locations that may flood brings an increased risk. People are advised to avoid low lying and exposed coastal areas. We will continue to monitor the situation and will update this information by 1pm on Friday or if the situation changes.


Flood Warning issued on 20 Aug 2020 12:23
South Cornwall Coast
Flooding is expected over the high tides on Thursday evening, Friday morning and Friday evening. High Spring tides, strong winds and large waves are expected to cause property flooding. High water at Falmouth on Thursday evening is at 19:13, and Friday at 07:37 and 19:56. Flooding is possible 2 hours either side of high tide. Times of high water will vary along the coast. Storm Ellen is forecast to bring large waves and force 7 Southerly winds on Thursday, turning South Westerly on Friday. Tides may be higher than predicted along the coast, with wave overtopping and sea spray in exposed locations. Locations particularly at risk include the Fal Estuary, and locations exposed to Southerly winds. High numbers of visitors in locations that may flood brings an increased risk. People are advised to avoid low lying and exposed coastal areas. We will continue to monitor the situation and will update this information by 1pm on Friday or if the situation changes.


Flood Warning issued on 19 Aug 2020 17:59
South Cornwall Coast
Flooding is expected over the high tide on Thursday evening. High Spring tides, strong winds and large waves are expected to cause property flooding on Thursday evening. Flooding of low lying or exposed locations is also possible on Thursday and Friday. High water at Falmouth on Thursday evening is at 19:13. Flooding is possible 2 hours either side of high tide. Times of high water will vary along the coast. Storm Ellen is forecast to bring force 7 Southerly winds and large waves, causing tides to be higher than predicted along the coast, with wave overtopping and sea spray in exposed locations. Locations particular at risk include the Fal Estuary, and locations exposed to Southerly winds. High numbers of visitors in locations that may flood brings an increased risk. People are advised to avoid low lying and exposed coastal areas. We will continue to monitor the situation and will update this information by 1pm on Thursday or if the situation changes.


Flood Warning issued on 11 Mar 2020 12:31
South Cornwall Coast
Flooding is expected over the high tide on Thursday morning 12th March. High water at Falmouth on Thursday morning is at 07:08. High water times will vary along the coast. Conditions apply two hours either side of the high tide, with property flooding expected over the peak of the tide. Force 7 west to south-west winds and offshore wave heights of over 3m are forecast. Winds will be stronger than on Wednesday morning’s high tide. This could result in wave overtopping and sea spray along the coast including sea front car parks. People are advised to stay away from risk areas and take care. Locations particularly at risk include Pentewan, Gorran Haven, Flushing, Penryn and the A39 at Perranarworthal. Take care near coastal paths and promenades. Keep up to date with weather and tide conditions on local radio. We are monitoring the situation and will update this information on Thursday or if the situation changes.


Flood Warning issued on 10 Mar 2020 13:46
South Cornwall Coast
Flooding is expected over the morning high tide on Wednesday 11th March. High water at Falmouth is at 06:25. High water times will vary along the coast. Conditions apply two hours either side of the high tide, with property flooding expected over the peak of the tide. Force 6 to 7 westerly to south-westerly winds and offshore wave heights of over 2m are forecast. These could result in wave overtopping and sea spray along the coast including sea front car parks. People are advised to stay away from risk areas and take care. Locations particularly at risk include Pentewan, Gorran Haven, Flushing, Penryn and the A39 at Perranarworthal. Take care near coastal paths and promenades. Keep up to date with weather and tide conditions on local radio. We are monitoring the situation and will update this information on Wednesday or if the situation changes.


Flood Warning issued on 12 Feb 2020 15:41
South Cornwall Coast
Flooding is expected over the high tide on Thursday morning 13th February. High water at Truro is 08:14. Times of high water will vary along the coast. Conditions may apply two hours either side of the high tide, with property flooding expected over the peak of the tide. Water levels are forecast to be higher than recent high tides associated with Storm Ciara, therefore increased flood impacts are likely. Force 7 west south westerly winds and offshore waves of 4 to 5m are forecast to cause wave overtopping of sea defences and sea spray in exposed coastal locations. Expect tides to be around 0.3m higher than predicted due to weather conditions. Locations particularly at risk include Pentewan, Gorran Haven, Flushing, Penryn and the A39 at Perranarworthal. Take care near coastal paths and promenades. Keep up to date with local radio. We are monitoring the situation and will update this information on Thursday morning, or if the situation changes.


Flood Warning issued on 26 Nov 2019 11:44
South Cornwall Coast
Flooding is expected over high tides on Tuesday evening and Wednesday morning. High water at Falmouth on Tuesday evening is at 5.01pm and Wednesday morning is at 5.21am. Times of high water will vary along the coast. Force 7, South- South Westerly winds and offshore wave heights of up to 5.6m are forecast for the high tide on Tuesday afternoon. Force 6, Westerly winds and offshore wave heights of up to 4.5m are forecast for Wednesday morning’s high tide. Expect tides to be around 500mm higher than predicted due to weather conditions. Do not drive through flood water or waves. The tidal gates at Flushing will be closed. We are continuing to monitor the situation and will issue updates if the situation changes. Detailed information for those who use it; the forecast high tide level for Tuesday is 3.14m AOD and on Wednesday is 3.17m. This is 0.47m above astronomical tide level.