An Equinox Storm System Mar 20, 2010

Just when we thought winter was over with… Mother Nature throws another major winter storm at the midsection of the United States, all on the official start of Spring.

This very potent winter storm has a combination of cold Canadian Air combined with rich Gulf Moisture, all of it meeting up over the Sooner State.


Having forecasted winter storms for the last 10 years of my professional career, I know how challenging they can be.

Hands down, this storm is going to lay down some heavy snow across the Plains, but How Much?

Well, pick your pony!   Here are a few solutions for snow fall totals, the first being the GFS Model:


Or, how about the NAM?


And that is why we have human forecasters…. to decide which model is going to have the best solution and which one is going to be a bust.

Here is what the local NWS forecasters out of Nornan, Oklahoma think:


With over 5″ of snow in OKC today, that would push them over the edge for a record breaking winter.  The snowiest winter for OKC was back in 1947 to 1948 with a grand total of 25.2″ of the white stuff.   So far this year, OKC has had 20.7″, compared to an average year, where they would expect about 9″.

That part of the country does not have the resources in place for immediate snow removal like the MN or CO would have.  It’s a good thing the days are a little bit longer then they are in December, or that snow would be sticking around for a while and shutting down the area.

After this big storm system moves off to the east, I do not see a major winter storm for the county in the next 5 days.

WeatherNation Meteorologist Jonathan Conder

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