Photo: Wayne Fichter
The Thompson-Okanagan could see another light show tonight and possibly over the next few days.
“Somewhere it’s almost 100 percent, we’re going to see it (lightning) in the region. We’ll see the cloud and thunderstorms over the high ground,” said Doug Lundquist, Environment Canada meteorologist.
Lundquist tells Castanet that there could also be wind gusts of up to 70 km/h in very limited areas.
“When there’s wind, it’s only during thunderstorms and we’re forecasting possible wind speeds of 70 km/h – but otherwise the wind pattern is very calm,” says Lundquist.
It is likely that this system, moving into the valley at the end of a two-day heatwave, will bring dry lightning.
“This storm will be a lot less wet than last time. We had a lot of showers with this (system) last weekend. But this time there are more dry flashes coming.”
Lundquist noted that the winds could also help clear some of the haze from the area. The province added Shuswap, Southeast BC, and 100 Mile House to a Smoky Skies bulletin, but not yet Thompson-Okanagan.
A smoky skies bulletin was issued Thursday morning for the southeastern corner of the province, excluding the Okanagan.
Lundquist says part of the reason for the haze hanging in the valley is related to the high humidity.
“If the temperature dropped to 18 degrees today, for example, we would get fog. It’s extremely humid. So very, very humid atmosphere, very subtropical dew point.”
According to Lundquist, the temperature of Lake Okanagan has been between 25 and 30 degrees Celsius for the past week or two, “that’s almost a tropical temperature for water.”
He expects the heat to continue but doesn’t think Environment Canada will issue another heat warning.
“Compared to a normal summer, at the end of summer we’re in a zone that I’ve never really seen,” he said.
“The coldest day here is coming up, for example we’re forecasting 28C in Kelowna on Monday and that’s still two degrees above average – so our coldest day isn’t even normal. It’s just humid and muggy and warm this late in August, it’s not normal.”