WEATHER GEEK: Record breaking high temps & potentially damaging windstorm!



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by Chris Scragg
Puget Sound Weather Geek

Not sure which is more impressive, tomorrow’s possible wind storm or today’s record high temperatures in the upper 60s…in December! Thursday’s wind storm would certainly be more impactful, so lets get into that.

Computer generated weather models have been wrestling with the details of a windstorm set to arrive Thursday afternoon. The American produced models were forecasting a stronger scenario than the Canadian and better funded (and typically more accurate) European models. However now, they seem to have switched places.

The forecast for this system will come down to two different possible paths. The first possible scenario which is being suggested by the University of Washington computer model, is a path along the coast and into central Vancouver Island. This would be generate very strong winds for the Oregon and Washington coasts as well as the north Puget Sound, but for central and south Puget Sound it would only result in a blustery afternoon.

The second possible scenario is much more potent. The Canadian and European models have started pointing the low pressure to a path that carves right through western Washington. If this serious situation occurs then we can expect damaging high winds gusting to 60+mph to funnel through the Puget Sound potentially causing widespread power outages.

As a result of the potential for damaging winds, the National Weather Service has issued a High Wind Watch for a large portion of western Washington. The official watch warns of 30-40mph winds with gusts to 65mph. This may be upgraded to a High Wind Warning.

Another thing to watch out for if you live along the waterfront in the Puget Sound: (Three Tree Point, Alki Point waterfront residents) there will be some “tidal overflow” Thursday morning. The NWS has issued a Coastal Flood Watch for all low lying areas near the water in Puget Sound

I will make the final updates for the night after going through them. Stay tuned to the forecasts and be careful out there!

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