Some Lower Mainland residents were woken by a strange phenomenon Sunday morning (Dec. 18), as a weather event typical of hot rainy days collided with falling snow.
Thundersnow is when snow replaces rain as the primary precipitation during a thunder and lightning storm. It’s rare, but when it does occur, it often sounds more muffled than the typical cracks of a thunderstorm and can be accompanied by graupel or hail.
Here’s what some people throughout the region saw:
In addition to witnessing such a rare event, residents will also wake up Sunday with the chance to put their snow skills to the test once again.
Environment Canada is calling for 5 to 10 cm in Metro Vancouver and 10 to 15 cm in the Fraser Valley to finish off the weekend. That’s in addition to up to several centimeters which fell overnight Saturday.
Already Sunday morning, at least two major incidents has been reported on Highway 1 in North Vancouver.
DriveBC says the highway’s eastbound right lane is blocked due to a stalled vehicle between Railway Street and Second Narrows Bridge. Another incident between the Mountain Highway exit and Lynn Valley Road exit is also blocking the highway westbound. Delays are expected at both.
Environment Canada is warning that roads may be slippery and visibility is likely to worsen.
Hwy 1 WB trying to get through North Vancouver is a disaster right now. Avoid. Holy crap avoid this. I'm stuck here for a while! 15 spunout cars trying to get to Mtn Hwy. #bcstorm pic.twitter.com/xZUdn0Qbmb— Brad Atchison (@Brad604) December 18, 2022
Here’s what things look like elsewhere in the region:
Snowfall in #NewWestminster.— Stephen A. Braverman (@stephenbraverm1) December 18, 2022
7 a.m. #SundayMorning.
Didn't hear the Thundersnow even though I was awake when it happened in other parts of the region. #ShareYourWeather #BCStorm pic.twitter.com/4Hs89JWGDu