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High Streamflow Advisory, now a Flood Watch for BC Peace

Rivers and creeks, in some areas, have already begun to rise
flood watch upgrade (06-17-22)
The BC Peace is now under a Flood Watch (orange) by the Rivers Forecast Centre. The Liard (red) remains under a Flood Warning.

Update:

The Rivers Forecast Centre upgraded its High Streamflow Advisory for rivers and tributaries in the BC Peace to a Flood Watch Friday morning.

"A low-pressure system is impacting the Peace Region with rainfall. Precipitation amounts around 10-40 mm have been observed through the region since yesterday, and additional rainfall expected through Friday," said the updated statement. "Rivers are expected to rise rapidly on Friday in response to rainfall. Smaller creeks are already showing signs of rapid rise."

"Current hydrologic modelling is indicating the potential for 5-year to 10-year flows, and potentially higher, in areas around Hudson’s Hope, Moberly Lake, Chetwynd, Taylor, Chetwynd and Fort St. John. Flows are expected to reach peak levels late Friday, and into Saturday/Sunday for larger watersheds," the statement continued.

The forecast is calling for an additional 10 millimetres of rain today with higher amounts (up to 25 mm) near the Rockies.

 

Original story:

The forecast for up to 60 millimetres of rain in some areas of the BC Peace has prompted the Rivers Forecast Centre to issue a High Streamflow Advisory for the entire region.

The advisory covers all rivers and tributaries around Fort St. John, Taylor, Chetwynd, Moberly Lake, the Pine Pass, Hudson's Hope and Dawson Creek.

“Precipitation amounts range from 20‐60 mm for the event with the possibility of even heavier amounts at locations depending upon convective activity. Rivers are expected to rise rapidly in response,” states the advisory.

“Current hydrologic modelling is indicating the potential for 2‐year to 5‐year flows, and potentially higher.”

Environment Canada is forecasting 10-15 mm of rain today with up to 25 mm near the Rockies with the potential of more precipitation through the weekend.

Under a high streamflow advisory, river levels are rising or expected to rise rapidly and minor flooding could occur in low-lying areas.

The forecast for the Peace for the next 48 hours will be wet.

Today: Rain at times heavy changing to a few showers this afternoon. Risk of thunderstorms. Amount 10 to 15 mm except locally 25 mm near the Rockies. Wind north 30 km/h gusting to 50 becoming southwest 20 gusting to 40 this afternoon. High 17. UV index 2 or low.

Tonight: Becoming cloudy late this evening. 40 percent chance of showers overnight. Showers near the Rockies. Local amount 10 mm near the Rockies. Wind southwest 20 km/h gusting to 40 becoming light this evening. Low 9.

Saturday: Showers. Risk of a thunderstorm in the afternoon. Amount 5 to 10 mm. Wind becoming northwest 20 km/h gusting to 40 in the afternoon. High 18. UV index 3 or moderate.

Saturday night: Cloudy periods with 30 percent chance of showers. Low 9.

Sunday: A mix of sun and cloud with 30 percent chance of showers. High 21.

Sunday night: Cloudy periods. 30 percent chance of showers. Low 9.

Meantime, a Flood Warning issued over two weeks ago for the Liard region, remains in place.

While river levels crested last Saturday for lower sections and on June 8 for the upper sections of the river, flows and levels still remain high and will, likley, be impacted by the latest precipitation.