The BC River Forecast Centre is issuing a Flood Watch for the Birkenhead River tonight.
They say depending on how much rain falls in the next 48 hours, other streams in the region may approach flood conditions.
A High Streamflow Advisory has also been issued for the Lillooet River and tributaries, the Squamish River, and tributary creeks through the Sea-to-Sky Corridor and Pemberton Valley.
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Snowmelt has been rapid over the past week as a result of unseasonably high temperatures. Rivers throughout the South Coast have been flowing high in response to this snow melt. River levels have surged over the past 24 hours in response to heavy rainfall overnight.
More rain is expected tonight and Monday, with some areas expecting between 15-50 mm. Coastal areas, e.g. Squamish, are expected to receive higher rainfall amounts compared with more inland areas, e.g. Pemberton.
River levels may drop slightly through Sunday evening, however, rapid additional rises are expected throughout Monday, with peak river levels expected late-Monday and into Tuesday. Flows in the Squamish, Lillooet and tributary rivers are expected to reach between 2-year and 10-year return period levels.
Several rivers across the province are also under Flood Watch.
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