Thursday, February 4, 2021

Super Bowl Sunday Snowstorm? Active February Ahead?

 We may be starting what could be quite an active month in terms of storm chances of Arctic cold shots. After getting our second major snowstorm of the season to start the week, there is potential for yet another significant snowstorm for Super Bowl Sunday. Below, are some of the piece to watch over the next few days.

The polar vortex across the southern Arctic is going to be heavily disrupted over the next couple of days when a piece (or multiple pieces) breaking off and becoming displaced across southeastern Canada:



There will also be confluence to the north of our region. This area of confluence could be a major determinant in whether the storm tracks close enough to the coast to give us snow or it stays out to sea and is fun for the fish:


 The key piece of energy which looks to be responsible for the potential storm quickly accelerates through the jet stream and is expected to move into the Pacific-Northwest region Thursday night:


There is very strong agreement within forecast model ensembles that the pattern (at least through mid-month) will be extremely favorable for Arctic cold shots and plenty of storm chances. Forecast models indicate in the Pacific-North American pattern (PNA) becoming increasingly positive as a large ridge builds across the eastern Pacific into the Gulf of Alaska. The Arctic Oscillation (AO) is expected to become extremely negative and favoring polar vortex (PV) displacement to southern Canada. Meanwhile the ridge off the Southeast coast holds strong:




This pattern screams Arctic cold blasts across much of the eastern-third of the country with numerous storm threats. In fact, the upcoming week features THREE different storm chances;

1) Super Bowl Sunday

2) Tuesday/Wednesday

3) End of week/next weekend

February is certainly no stranger to active weather and cold and it looks like February 2021 may deliver in both categories. Rejoice snow lovers, your time may be coming.

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