On February 2, 2026, an unseasonable rain-on-snow event dropped about 25 mm of rain in a 24‑hour period in the Williams Lake area of British Columbia, prompting concerns about localized flooding and slippery roads. That total — recorded at a monitoring station outside the Williams Lake city limits — is roughly 150% of the long‑term February monthly average (about 16–19 mm), according to Climate-Data.org.
Unseasonably warm conditions caused rapid snowmelt, increasing runoff and overwhelming some drainage systems. City of Williams Lake Public Works crews have been working to keep culverts and drains clear to prevent water backing up into homes and low‑lying areas, including parts of the River Valley. The sudden runoff has caused pooling and slippery or washout‑risk conditions on some arterial routes; the Ministry of Transportation and Infrastructure is the authority for Highway 97 and has been monitoring road conditions.
The Cariboo Regional District (CRD) Emergency Operations has urged residents to stay away from the banks of the San Jose River, which has been running fast, and to take care near the River Valley. Frozen ground and ice‑plugged culverts have limited infiltration and drainage, contributing to minor localized flooding and ponding in vulnerable areas.
This rain‑on‑snow pattern is similar to conditions that contributed to past flood events in British Columbia. The BC River Forecast Centre is monitoring streamflows and issuing advisories as additional wet weather is expected. Residents are encouraged to check their properties for drainage issues and to follow updates and any alerts from the City of Williams Lake and the Cariboo Regional District.
