Ahtanum Creek at Union Gap water level

What this means

At 2.71 ft, Ahtanum Creek at Union Gap is far below normal for mid-October.

That puts it 0.43 ft below the median of 3.15 ft for mid-October, based on 26 years of readings. A year ago it stood at 2.96 ft (−0.25 ft).

The level has held steady over the past 24 hours. Without real rain upstream, that is unlikely to change quickly. Over the past 30 days it has moved between 2.64 ft and 2.76 ft.

Fall is often low-water season on rivers, and it usually takes a few days of steady rain to change that.

Compared with 26 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date

3.15 ft0.43 ft below the median for this date

Normal for this date

2.87 ft – 3.38 ft8 years in 10 fall in this range (26 years of records)

Same day last year

2.96 ft−0.25 ft

Lowest and highest in 30 days

2.64 ft – 2.76 ft

Lowest and highest in 12 months

2.46 ft – 6.67 ft

Highest on record

10.36 ftJanuary 16, 1974