Rock Island Dam Pp North Hw near Wenatchee water level

What this means

Rock Island Dam Pp North Hw near Wenatchee is below normal for mid-October, with the lake level at 611.76 ft.

The median for mid-October is 611.87 ft, based on 5 years of readings, so the lake level is 0.11 ft below typical. On the same day last year the reading was 611.77 ft, a difference of −0.01 ft.

It has dropped 0.22 ft over the past 24 hours. With the water still dropping, the shoreline keeps moving out. In the last month it has stayed between 611.57 ft and 612.18 ft.

Many reservoirs are drawn down through summer and fall; most of the refill comes later, with winter rain or spring snowmelt.

Compared with 5 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date

611.87 ft0.11 ft below the median for this date

Normal for this date

611.69 ft – 612.04 ft8 years in 10 fall in this range (5 years of records)

Same day last year

611.77 ft−0.01 ft

Lowest and highest in 30 days

611.57 ft – 612.18 ft

Lowest and highest in 12 months

610.75 ft – 612.83 ft