River Calder level at Portsmouth Lennox Road
Latest at 10:45am on 4 November
- Height
 - 0.68m
 - Trend
 - Steady
 - State
 - Normal
 
Normal range 0.08m to 1.12m
How levels here could affect nearby areas
- 1.67m
 - 
          Historical event: Flooding in Cornholme area
 - 1.30m
 - 
          Property flooding is possible above this level
 - 
          Historical event: Flooding on Harley Wood, Todmorden
 - 1.15m
 - 
          Water reaches the highest level recorded at this measuring station (26 December 2015)
 - 1.12m
 - 
          Top of normal range. Low-lying land flooding possible above this level
 - 0.68m
 - 
          Latest level
 
Flooding might not happen again at the same historical levels. This may be because flood management schemes are now in place.