Image Credit: CFJC Today
RIVER WATCH

Province reports below normal snowpack in Lower Thompson and Nicola Basins

May 19, 2023 | 4:53 PM

VICTORIA — After rapid snowmelt occurred across most of B.C. in the beginning of May, the snowpack near Kamloops is below normal.

In its recent Snow Survey and Water Supply Bulletin on May 15, the Ministry of Forests say the average snowpack across the province was 66 per cent, dropping it down from what was reported back on May 1st at 91 per cent.

The Lower Thompson basin has decreased at 56 per cent , much lower than percentage May 1 when it was recorded at 171 per cent above normal.

Other areas around Kamloops saw a decrease in snowpack averages, with the Middle Fraser at 48 per cent of normal, Lower Fraser at 74 per cent, and the South Thompson also at 74 per cent.

The North Thompson snowpack average is down to 61 per cent compared to the 82 per cent reported earlier in the month. The low snowpack levels helped Kamloops escape major flooding this year.

“This is the type of heat that could’ve been catastrophic for many areas in the province, Kamloops being one of them,” Hydrologist of the B.C. River Forecast Centre Jonathan Boyd told CFJC Today. “That’s if we didn’t have the snow melting at lower elevations and have a snowpack that was considerably lower than normal.”

As for the chance of flooding in the region, Boyd says a number of factors would need to occur. “If we were to have a large-scale rainfall event and this is the type of rain that lasts all day and just doesn’t end, it’s widespread across the whole basin then there is potential for flows to get pretty high,” Boyd said. “I don’t think we have any chance to reach the historic levels like 1972 or nowhere near 1894 at this point.”