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 23, 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 have decreased slightly over the past 2 days, with day time highs in the 14 to 18˚C and overnight lows in the 4 to 9˚C through the region.


Snowmelt rates have eased, with 5-15 mm of melt a day being observed at regional automated snow weather stations.


An upper trough passing over central BC today will bring unsettled weather and showers, with the potential for isolated heavier showers, particularly through the central and eastern portions of the region (from Prince George through to Merritt). A drying trend is expected to follow this later today and through Friday, with another cooler period with potential showers over the weekend.


River levels have begun to some signs of reaching or approaching peak level in some areas. On some rivers, rises continue however the rate of rise has decreased from earlier this week due to reduced snowmelt rates.
Current reported river conditions as of 6:00AM Thursday April 23nd include:

  • West Road River near Cinema (Water Survey of Canada gauge 08KG001) has experienced slight easing in river levels and is now holding steady. Similar conditions are expected upstream in the Nazko River.
  • Baker Creek at Quesnel (08KE016) is flowing at approximately 110 m3/s (between a 10-year and 20-year flow) and holding steady
  • San Jose above Boreland Creek (08MC040) is flowing at 34 m3/s (approximately a 100-year flow) with the rate of rise easing
  • Bonaparte River below Cache Creek (08LF002) is flowing at 56 m3/s (10-year flow) and rising with the rate of rise easing
  • Chilako River upstream of the Highway 16 bridge has risen nearly 3m this week, with the rate of rise now easing

While there are early signs that river levels may be approaching or at peak levels, showers and on-going snowmelt into the weekend should keep river levels high and may lead to additional rises. Current modelling is indicating the potential for additional rises into Friday and over the weekend.


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