Snowpack conditions in southeastern British Columbia show a sharp divide heading into the spring freshet, with above-normal levels in parts of the Kootenays contrasting with significant deficits in the Boundary region.
As of April 1, the provincial snowpack sits at 92 per cent of normal, but regional variation is pronounced.
In the East Kootenay, snowpack is 110 per cent of normal, indicating an elevated potential for spring runoff and flooding, particularly if rapid warming or heavy rainfall occurs. Similarly, parts of the West Kootenay show near-normal overall conditions, coming in on April 1 at 101 per cent — up from 99 per cent on March 1, though higher-elevation snowpack is well above normal. This raises the likelihood of sustained late-season snowmelt contributions in alpine-dominated watersheds.
Forecasters note that this elevation split in the West Kootenay could lead to uneven runoff patterns, with higher flows later in the season as mountain snow continues to melt, even if lower elevations dry out earlier.
In contrast, the Boundary region remains well below normal at 65 per cent of typical snowpack. This deficit increases the risk of drought conditions through the spring and summer, particularly if warm, dry weather persists.
The Boundary is not alone. The neighbouring Okanagan basin also reports significantly below-normal snowpack, and both regions face an increased likelihood of reduced streamflow and water supply challenges in the months ahead.
Lower-elevation snow deficits are a particular concern across the southern Interior, including the Boundary, where early-season runoff and soil moisture recharge depend heavily on snowmelt. Without sufficient snowpack, water availability can decline quickly.
Despite these regional differences, officials stress that snowpack alone does not determine seasonal outcomes. Spring weather remains the key factor.
Rapid warming or rain-on-snow events could still trigger flooding in areas with average or above-average snowpack, including the Kootenays. At the same time, a prolonged period of warm, dry weather would worsen drought risk in already dry regions such as the Boundary.
Even in basins with below-normal snowpack, intense rainfall can generate high runoff and localized flooding.
Communities in southeastern B.C. are advised to prepare for both possibilities, elevated flood risk in the Kootenays and heightened drought risk in the Boundary, as conditions evolve through the spring.
The B.C. River Forecast Centre is expected to release its next seasonal flood hazard update in early May.
