Portsmouth Lennox Road water level

What this means

The River Calder at Portsmouth Lennox Road is above normal at 0.48 m.

That puts it 0.09 m above the median of 0.39 m for mid-October, based on 21 years of readings. A year ago it stood at 0.48 m as well.

It has risen 0.01 m over the past 24 hours. If the rise continues, low-lying paths and riverside parking can go under water. In the last month it has stayed between 0.46 m and 0.52 m.

Autumn rain usually starts to lift rivers again after the summer low.

Compared with 21 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date

0.39 m0.09 m above the median for this date

Normal for this date

0.17 m – 0.50 m8 years in 10 fall in this range (21 years of records)

Normal range

0.08 m – 1.12 m

Same day last year

0.48 m0.00 m

Lowest and highest in 30 days

0.46 m – 0.52 m

Lowest and highest in 12 months

0.34 m – 0.66 m

Highest on record

1.15 mDecember 26, 2015

Lowest on record

−0.17 mAugust 1, 2003