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Yosemite National Park reported yesterday it has received over 174 inches of snow in February alone at the Tuolumne Meadows ranger station, breaking the record for most February snowfall ever. And the month is just 21 days old!
In BC, we need -40C temps in the interior (Prince George) for that; this used to occur once every couple winters and now hasn't happened since January 1998.
One of the reasons why the mountain pine beetle has wreaked havoc on our forests over the past two decades.
Wrong. The arctic has the worst mosquitoes in the summer. So winter isn't killing squat off.
Dry heat is what kills off insects. In California during the summer there are no mosquitoes whatsoever.
It's not how cold the winter is, it's how dry the summer is that kills insects off.
Mountain pine beetle in particular is sensitive to the cold. Its range is from Mexico to central British Columbia. Temperatures down to -20C can actually kill it if they come in the fall or spring, when the insects are active. In the winter when they’re inactive, temperatures approaching -40C are necessary to kill them.
Lots of snow means replenished water reservoirs out west. Also means a lush spring... Could mean a BIG fire season later this summer if rains don't keep coming.
Mountain pine beetle in particular is sensitive to the cold. Its range is from Mexico to central British Columbia. Temperatures down to -20C can actually kill it if they come in the fall or spring, when the insects are active. In the winter when they’re inactive, temperatures approaching -40C are necessary to kill them.
The lack of extreme cold over the past two decades has allowed it to flourish in BC forests. Large swaths of forest are now tainted red due to a massive dieoff.
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