Flood Warnings and Advisories

High Streamflow Advisory (Downgrade) – Vancouver Island (Central & South); ENDED Flood Warning – Western Vancouver Island; ENDED Flood Watch Eastern Vancouver Island; ENDED High Streamflow Advisory – Northern Vancouver Island
ISSUED: 8:00 AM February 3, 2020

The River Forecast Centre is downgrading to a High Streamflow Advisory for:

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

The River Forecast Centre is ending a Flood Warning for:

  • Western Vancouver Island

The River Forecast Centre is ending a Flood Watch for:

  • Eastern Vancouver Island

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

  • Northern Vancouver Island

Very heavy rainfall fell over Vancouver Island on Friday due to an atmospheric river and most rivers peaked late Friday or early Saturday morning. Most rivers have returned to normal levels, except for rivers influenced by lakes. The Cowichan River, Ash River, Sproat River and Somass River have been downgraded to High Streamflow Advisory. There are no expectations for these rivers to increase over the next few days. However, the flows are receding slowly and are still considerably high relative to normal February 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