River Levels
River Levels

River Mimram at Panshanger

Current River Level

0.790m

At 8:30pm, Wednesday 22nd May BST
(7:30pm, Wednesday 22nd May GMT)

Within the usual range for this location

Steady, no change from previous measurement at 8:15pm, Wednesday 22nd May BST

Short-term forecast: falling

Latest Flow

0.99 m3/s

(Daily Average)

Recorded on Monday 20th May

Above normal flow volume

Decrease, -0.01 from previous recording on Sunday 19th May

Flood Warning Areas Covering Here

River Mimram from Tewin to Hertford

No current or recent warnings.

River Mimram in Hertfordshire

No current or recent warnings.

Other Nearby Flood Warning Areas

River Lee from Lemsford to Hertford

No current or recent warnings.

River Lee at Hertford

No current or recent warnings.

River Beane at Hertford

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: Panshanger
  • Watercourse: River Mimram
  • Nearest Town/Village: Hertingfordbury
  • Local Authority: East Hertfordshire
  • Ceremonial County: Hertfordshire
  • Coordinates: 51°48'12"N 0°8'28"W (51.803418,-0.141267)
  • OS Grid: TL2825613276 (528256,213276)
  • Mapcode (Local): GBR J94.T9P
  • Mapcode (Global): VHGPF.HXPW
  • Open Location Code: 9C3XRV35+9F
  • Maidenhead Locator System: IO91wt32
  • Environment Agency Location ID: 4790TH
  • Environment Agency Gauge ID: 4790TH-level-stage-i-15_min-mASD
  • River Levels Online ID: 7336
  • Water Information System ID: 4790TH
  • Operational Area: Upper Lee
  • Catchment Area: Upper Lee
  • UK Hydrometric Area: Lee
  • Environment Agency Region: Thames
  • Datum Type: Above Stage Datum (ASD)
  • Stage Datum: 47.118m 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 Mimram at Panshanger is between 0.31m and 1.07m. It has been between these levels for 90% of the time since monitoring began.

The typical recent level of the River Mimram at Panshanger over the past 12 months has been between 0.43m and 0.80m. It has been between these levels for at least 151 days in the past year.

The highest level ever recorded at the River Mimram at Panshanger is 1.28m, reached on Tuesday 23rd July 1996 at 11:00pm.

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 Mimram at Panshanger.

Nearby Monitoring Locations

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