Mesoscale Model Evaluation Testbed

MMET Case: 28 February 2009

Case Description

Reason for interest: high-impact mid-Atlantic and southern snowstorm

On 28 February, up to 7 inches of snow fell in Memphis, TN. A squall line marched through the Southeast along the leading edge of a cold front, prompting three tornado and several high-wind reports. The next two days (1-2 March), snow fell from Atlanta to New York, causing several car accidents along the East Coast and dropping up to a foot of snow in some areas. Some New York City residents complained about lack of notice for school cancellations.

The NAM QPF valid 1 March shifted precipitation too far north, missing rain/snow mix in Georgia and falsely predicting snow in western parts of the Carolinas.

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