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11th August 2015
EDITOR
Low Streamflow Advisory – Vancouver Island - Updated: August 4, 2015 4:15 PM
The River Forecast Centre is maintaining the low streamflow advisory for:

· Vancouver Island

Vancouver Island has experienced continued drier-than-normal precipitation and warmer-than-normal temperatures through July. These persistent conditions have resulted in continued record low streamflows, particularly on mid-Island unregulated streams and on smaller ungauged streams. Most streams on Vancouver Island have reached or surpassed the typical summer low flow conditions.

Streamflow conditions for the unregulated rivers:

· Tofino Creek near the mouth (08HB086) is currently recording a water level of 0.275 m, which is below the recorded minimum water level for this period of time. The rating curve for the station is not accurate at these low flow conditions.

· Gold River below Ucona River (08HC001) is currently recording a flow of 2.88 m3/s, which is 18% of the median flow (2nd percentile) and is below the recorded minimum flow for this period of time.

· Carnation Creek at the Mouth (08HB048) is currently recording a flow of 0.02 m3/s, which is 45% of the median flow (47th percentile) and above the recorded minimum flow for this period of time.

· San Juan River near Port Renfrew (08HA010) is currently recording a flow of 1.2 m3/s, which is 48% of the median flow (3rd percentile) and above the recorded minimum flow for this period of time.

· Koksilah River at Cowichan Station (08HA003) is currently recording a water level of 0.60 m, which is below the recorded minimum water level for this period of time. The rating curve for the station is not accurate at these low flow conditions.

· Chemainus River near Westholme (08HA001) is currently recording a water level of 0.16 m, which is below the recorded minimum water level for this period of time. The rating curve for the station is not accurate at these low flow conditions.

· Browns River near Courtenay (08HB025) is currently recording a flow of approximately 0.05 m3/s, which is below the recorded minimum flow for this period of time.

· Oyster River below Woodhus Creek (08HD011) is currently recording a flow of approximately 0.77 m3/s, which is below the recorded minimum flow for this period of time.

Streamflow conditions for regulated rivers:

· Cowichan River near Duncan (08HA011) is currently recording a flow of 3.93 m3/s, which is 68% of the median flow (4th percentile) and above the recorded minimum flow for this period of time.

· Nanaimo River near Cassidy (08HB034) is currently recording a flow of 2.73 m3/s, which is 57% of the median flow (2nd percentile) and below the recorded minimum flow for this period of time.

· Englishman River near Parksville (08HB002) is currently recording a flow of approximately 0.75 m3/s, which is above the recorded minimum flow for this period of time.

· Little Qualicum River near Qualicum Beach (08HB029) is currently recording a flow of approximately 0.52 m3/s, which is below the recorded minimum flow for this period of time.

· Sproat River near Alberni (08HB008) is currently recording a flow of 1.57 m3/s, which is 20% of the median flow (2nd percentile) and above the recorded minimum flow for this period of time.

· Tsolum River near Courtenay (08HB011) is currently recording a flow of approximately 0.06 m3/s, which is above the recorded minimum flow for this period of time.

· Quinsam River near Campbell River (08HD005) is currently recording a flow of approximately 1.27 m3/s, which is below the recorded minimum flow for this period of time.

· Salmon River near Sayward (08HD006) is currently recording a flow of approximately 2.82 m3/s, which is below the recorded minimum flow for this period of time.

Environment Canada forecasts 5 to 25 mm of rainfall for most of Vancouver Island (with totals up to 40 mm for the north Island) over the next 10 days. Temperatures are expected to cool slightly from seasonal conditions over that period. August is typically one of the drier months of the year for Vancouver Island and in light of the current conditions, streamflows are unlikely to recover to average flow conditions for a sustained period without higher than average rainfall through August.

The River Forecast Centre http://bcrfc.env.gov.bc.ca/index.htm will continue to monitor conditions and will provide updates as conditions warrant. For streamflow conditions in other parts of the province, visit the RFC’s Low Streamflow Bulletins and Advisories webpage http://bcrfc.env.gov.bc.ca/lowflow/index.htm . For information on drought levels across the province, fisheries closures and what you can do, please visit the Living Water Smart website http://www.livingwatersmart.ca/drought/