Flood Warnings and Advisories

High Streamflow Advisory – Cariboo and Chilcotin
ISSUED: 7:00 AM April 18, 2020

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

  • Cariboo and Chilcotin (Fraser Plateau) including tributary rivers and streams around Nazko, Chilako, Prince George, Williams Lake, Quesnel, Alexis Creek, Anahim Lake, Cache Creek and surrounding areas

Cold spring weather over the past month has transition to climbing temperatures over the past several days throughout the BC Interior. Daily maximum temperatures over the past few days has been in the in 10-15˚C range in Williams Lake and Prince George, compared to the sub-zero daily maximum temperatures that persisted earlier in the month.

Snowmelt has begun across the region over the past few days, with reports that the rapid transition in temperatures may be playing a factor in increased overland flow due to frozen ground conditions and ice-jamming.
Temperatures are expected to continue to rise over the next several days, with daytime high temperatures up to 16-17˚C forecasted for Prince George and Williams Lake by Monday. Snowmelt rates are expected to increase with this warming, and streamflow is expected to continue to increase through Monday-Tuesday.

The public is advised to stay clear of the fast-flowing rivers and potentially unstable riverbanks during the high-streamflow period.


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
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