Flood Warnings and Advisories

Flood Warning – Cache Creek, Cariboo, Chilcotin, Nazko/West Road River (MAINTAINED)
Flood Watch – Chilako River and areas south-west of Prince George (MAINTAINED)
ISSUED: 8:00 AM April 22, 2020

The River Forecast Centre is maintaining a Flood Warning for:

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

The River Forecast Centre is maintaining a Flood Watch for:

  • Tributary rivers and streams around Chilako and south-west of Prince George,

Temperatures through the region peaked on Monday and experienced a slight easing on Tuesday, with daytime highs in the 14-15˚C range around Williams Lake and Prince George, and up to 22˚C south around Ashcroft and Cache Creek. Overnight temperatures have risen to above freezing and as high as 10˚C overnight in Ashcroft. Weather over the next couple of days is expected to be more unsettled with showers.
Snowmelt rates have been elevated, with 10-25 mm of melt a day being observed at regional automated snow weather stations. The decrease in daytime high temperatures is being offset by the high overnight temperatures resulting in continued high snowmelt rates.


River levels have continued to rise, with some signs of reaching or approaching peak level in some areas, while other areas continue to see rises.
Current reported river conditions as of 6:00AM Wednesday April 22nd include:

  • West Road River near Cinema (Water Survey of Canada gauge 08KG001) appears to have an easing in the rate of rise, with the potential for additional rises over the next 2 days as weather
  • Baker Creek at Quesnel (08KE016) is flowing at approximately 110 m3/s (between a 10-year and 20-year flow) and rising
  • San Jose above Boreland Creek (08MC040) is flowing at 30 m3/s (approximately a 100-year flow) with the rate of rise easing
  • Bonaparte River below Cache Creek (08LF002) is flowing at 50 m3/s (5-year to 10-year flow) and rising

While there are early signs that river levels may be approaching or at peak levels, showers and on-going snowmelt over the next couple of days should keep river levels high and may lead to additional rises. Current modelling is indicating the potential for additional rises through the end of this week.


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.

Links:

  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