River Levels
The issue with delayed data has been resolved, but we are continuing to monitor the situation.
River Levels

River Lee at Waterhall

Current River Level

0.300m

At 10:30pm, Friday 11th October BST
(9:30pm, Friday 11th October GMT)

Within the usual range for this location

Steady, no change from previous measurement at 10:15pm, Friday 11th October BST

Short-term forecast: falling

Latest Flow

2.48 m3/s

(Daily Average)

Recorded on Wednesday 9th October

Above normal flow volume

Decrease, -0.08 from previous recording on Tuesday 8th October

Flood Warning Areas Covering Here

River Lee at Hertford

No current or recent warnings.

Other Nearby Flood Warning Areas

River Mimram from Tewin to Hertford

No current or recent warnings.

River Beane at Hertford

No current or recent warnings.

River Lee at Hertford and Ware

No current or recent warnings.

River Mimram in Hertfordshire

No current or recent warnings.

Seven Day Level Chart

Including short term predicted levels (shown as dotted line)

Important! Forecast levels are generated algorithmically by the Environment Agency's computers and may not necessarily be accurate, particularly in times of rapidly changing weather. Please check related flood warning areas for more detailed, professionally assessed predictions.

Long Term Level Chart

Darker blue shaded areas on long term data indicate maximum and minimum levels for the date (you may need to zoom in closer to see them).

Long term data may have gaps where the API data was not available.

Download long term data as csv

Note: CSV data will include any outlying values that have been ignored by our graphing system as probably erroneous (eg, because they are ridiculously high compared to the values either side of them). It is your responsibility to filter these out if necessary.

Important! If you are planning to retrieve the csv data automatically, you must read and understand the limitations on the data and its availability.

Location and Technical Data

  • Monitoring Station: Waterhall
  • Watercourse: Lee
  • Nearest Town/Village: Hertingfordbury
  • Local Authority: East Hertfordshire
  • Ceremonial County: Hertfordshire
  • Coordinates: 51°46'23"N 0°7'3"W (51.773132,-0.117522)
  • OS Grid: TL2998009950 (529980,209950)
  • Mapcode (Local): GBR KBW.T93
  • Mapcode (Global): VHGPM.XP7L
  • Open Location Code: 9C3XQVFJ+7X
  • Maidenhead Locator System: IO91ws55
  • Environment Agency Location ID: 4690TH
  • Environment Agency Gauge ID: 4690TH-level-stage-i-15_min-mASD
  • River Levels Online ID: 7333
  • Water Information System ID: 4690TH
  • Operational Area: Upper Lee
  • Catchment Area: Upper Lee
  • UK Hydrometric Area: Lee
  • Environment Agency Region: Thames
  • Datum Type: Above Stage Datum (ASD)
  • Stage Datum: 43.594m AOD

Please note: Geographic coordinates may reflect the access point for the gauge, and not the precise location in the watercourse that it is taking readings from.

The usual range of the River Lee at Waterhall is between 0.12m and 0.60m. It has been between these levels for 90% of the time since monitoring began.

The typical recent level of the River Lee at Waterhall over the past 12 months has been between 0.20m and 0.46m. It has been between these levels for at least 150 days in the past year.

The highest level ever recorded at the River Lee at Waterhall is 1.16m, reached on Friday 7th February 2014 at 8:15am.

Note that this data may not take account of recent measurements, as we wait until a level has been verified by the Environment Agency before adding it to our records.

View the catchment for River Lee at Waterhall.

Nearby Monitoring Locations

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