UK snow chances increase next week as bitter Canadian/Greenland air becomes entrained within Atlantic flow!

As stated in a recent Europe video, this winter’s cold spells haven’t so much came from a -NAO but a -AO. As we head into this weekend, the Atlantic flow shall make a return to the UK but with an exciting twist.

The good news is that despite a westerly flow and no hint of a -NAO, the slack -AO is pushing arctic air southwards allowing lows circling the mid latitudes to tap and entrain. Modelling strongly suggests low pressure exiting Canada with sights on the UK Monday-Tuesday will draw on some rather bitter arctic Canada air, significantly increasing snow chances.

The below GFS 850mb temp charts shows the entrainment of this air which reaches the UK early next week. This has the potential to bring significant snowfall to the Northern and western UK, even to low levels and once the front passes, our air mass is essentially coming straight from the Canadian arctic through much of next week with further snow showers.

Credit: wxcharts.eu

Credit: wxcharts.eu

See how the GFS increases snow depth as next week progresses.

Credit: wxcharts.eu

Credit: wxcharts.eu

Credit: wxcharts.eu

Yep, despite a westerly flow, our pattern is set to turn colder than normal.

Credit: Tropical Tidbits

Credit: Tropical Tidbits

Credit: Tropical Tidbits

Too early to say for sure at this point but let’s keep our eyes on this.

 

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