Flood Warnings and Advisories

ENDED: High Streamflow Advisory – Central Vancouver Island and Southern Vancouver Island
ISSUED: 10:30AM February 10, 2020

The River Forecast Centre is ending the High Streamflow Advisory for:

  • Central Vancouver Island (Ash River, Sproat River, Somass River)
  • Southern Vancouver Island (Cowichan River)

Heavy rainfall fell over Vancouver Island on Friday, January 31. Rivers influenced by lakes receded slowly from rpeaks over the following week.  Flows on the Cowichan River, Ash River, Sproat River and Somass River have returned to seasonal normal levels. 

The River Forecast Centre continues to monitor the situation and provides updates as conditions warrant.

Contact for Media Relations, Ministry of Forests, Lands, Natural Resource Operations and Rural Development:
Tel: 250 356-7506

Levels of Warnings/Advisories:

  1. High Streamflow Advisory: River levels are rising or expected to rise rapidly, but that no major flooding is expected. Minor flooding in low-lying areas is possible. This is the lowest level.
  2. Flood Watch: River levels are rising and will approach or may exceed bankfull. Flooding of areas adjacent to affected rivers may occur. This is the intermediate level.
  3. Flood Warning: River levels have exceeded bankfull or will exceed bankfull imminently, and that flooding of areas adjacent to the rivers affected will result. This is the highest level.


  1. Home of River Forecast Centre
  2. Current Streamflow Conditions and Flood Forecast Modeling
  3. Map of Current Streamflow Return Periods for All WSC Stations
  4. CLEVER Model 10-day Forecasts of Discharges and Return Periods
  5. COFFEE Model 5-day Forecasts of Discharges and Return Periods
  6. Back to page of Flood Warnings and Advisories