Why Snow Forecasting Can Be So Difficult

See the X off the British Columbia coast? That is the weekend snowstorm.

It is expected to intensify. It should take the path indicated by the red arrows I placed over the computer model's forecast for 6am Saturday. The low should take a sharp turn to the northeast after it moves into northern Mexico.
Any deviation from the red arrow path will mean a difference in the timing, location and amount of snow. If it moves even 5% differently than forecast along that 4,000 mi. path, the snow prediction will be a complete bust. 


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