High Streamflow Advisory: South Interior

The BC River Forecast Centre is issuing a High Streamflow Advisory for small and medium-sized rivers in the South Interior including:

• Boundary

• Okanagan

• Similkameen

A few days of warmer weather earlier this week has seen a transition in mountain snowpacks from accumulating snow to melting snow. Snow melt rates over the past few days have been moderate, and have led to rising trends in most rivers through the region.

A strong high pressure ridge is forecast to develop across British Columbia over the coming few days, and remain until the early part of next week. Temperatures are expected to rise dramatically over this period. Environment Canada is forecasting temperatures in the mid- to upper 20’s Saturday through Monday or Tuesday for the South Interior.

River levels are expected to rise in response to rapid snowmelt over this period. The rising trend is expected to persist through the weekend and into next week, with peak river levels on small to medium-sized rivers expected to be reached on Monday or Tuesday.

The River Forecast Centre will continue to monitor conditions and will provide updates as conditions warrant.

Photo from CBC