Community, Meteorology

Lightning Strikes and Power Outages

Can lightning cause power outages?

As it turns out, lightning doesn’t even have to strike a power pole or knock over a tree to cause a power outage. The build up of charge nearby can actually cause power surges -no contact necessary.

Additionally, lightning gives off electromagnetic radiation. The phenomenon itself is called “sferic“, and it means you might notice static on the AM radio frequencies around the time of a strike.

That said, outages are more likely to be due to tree branches hitting power-lines than an actual lightening strike; Power-lines are often in the position of being the most attractive thing around for a lightening strike, and that is considered in their design.

What brought all this to mind?

It was a dark and stormy night. Well, it was a bit after midnight on what had just become Saturday morning. Heavy Rain. A flash. A house-shaking kaboom. The power suddenly out. It seems to have been the start of an outage on the section of power-line that goes up along Griffin Road. Lincoln Electric had everything back up and running later on Saturday.

Speaking of outages, though- there’s a planned one this week (11 PM Wednesday ’til 5AM Thursday) for everyone served by Lincoln Electric. Another overnight maintenance outage, courtesy of Bonneville Power Administration, since they need to replace structures damaged by gunshots (They’d love to have more information about that- call the BPA Hotline if you have any).

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