Valentine’s Day Polar Vortex: Dangerously Cold Temperatures Possible this Weekend

The coldest air of the season will arrive during the upcoming weekend just in time for Valentine’s Day.  The models are not in total agreement on exactly how cold it is going to get but some of the latest operational runs are raising eyebrows.

The following image shows the progression of arctic air infiltrating the eastern United States (Global Ensemble Forecast System), image courtesy weatherbell.com

gefs_t2anom_16_east_1.png

Temperatures on Saturday and Sunday could be running some 15 to 20 degrees Celsius below average! (that would be well over 30 degrees below normal Farenheit)

So let’s look at what the current models are showing for actual air temperatures on the morning of Valentine’s Day:

ecmwf_t2m_ma_25.png

Zooming into the Washington Region: (Below Zero temperatures are possible in spots!)

ecmwf_t2m_washdc_25.png

How about the wind chills:  With a stiff north wind, our region could be under *Wind Chill Warnings* with the feel like temperature 15 to 25 below zero!

ecmwf_wchill_washdc_25.png

And how about these *Toasty* high temperatures for Valentine’s Day:  Don’t be surprised if we keep seeing the current forecast highs of “25” start dropping into the teens as we get closer to the weekend.

ecmwf_t2m_washdc_26.png

 

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