Is a ‘Bomb Cyclone’ Going to Make it to the Snoqualmie Valley?

[Guest Post by North Bend resident Mark Davis]

I’m sure by now most of you have heard of the “Bomb Cyclone” out in the pacific headed our way. A storm gets the name “Bomb Cyclone” when the storm’s pressure drops at least 24Mb “millibar” in a 24 hour period.

This storm has been tough to predict where it was going to make landfall. Currently, it’s going to stay west of the coast and head North towards Vancouver Island. Where it makes landfall makes all the difference in the world on how it will affect us. So with that said, let’s show some charts.

First, the NWS out of Seattle has posted a Wind Advisory for the East Puget Sound Lowlands; that’s us. From Sunday 5 am to 6 pm, for sustained winds 25 to 35mph with gusts up to 45mph. I think we’ll possibly reach 50 to 55mph in some locations out here. These winds will be coming from the East, downslope out of the cascades.


Here’s a wind chart from the EURO model “European,” which is the most trusted model. This model shows gusts in the mid-’50s. Just an FYI, the flag is North Bend.

This graph here shows all of the models put together. Ignore the ICON model; it’s always out to lunch.

And finally the last chart. This is the pressure of the storm showing all of the models put together. The tighter the lines means that all of the models agree. This storm has set a historic low pressure for the PNW. The lower the pressure, the higher the wind speeds. But remember, where it makes landfall makes all the difference too.

With all of this said, this is the current situation for this storm. Things can definitely still change in either direction with higher or lower wind speeds. Be prepared for possible power outages and keep an eye on the trees that are around your home. Stay Safe!!!!

[Visit Mark’s Facebook page here or check out North Bend Weather here.]

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