Live Conditions

Monday, February 11, 2013

February 8-9th Nor'easter Summary

Final snow totals:
Northern New Jersey

 Southern New Jersey
Thoughts:  For North Jersey, I believe I got a little too "trigger happy" and drew the borders for the snowfall amounts a little too south.  Had the lines I drew been a little more northern, it would have been a very accurate forecast.  For South Jersey, thought, I feel fairly good about the forecast, with the predictions matching the recorded amounts decently well.

Final Analysis:
24-hour Radar Loop of the Nor'easter

Thoughts:  What an incredible and unique Nor'easter snowstorm!  Firstly, the shear strength behind this storm caused 3-6 inches an hour in parts of Long Island, NY and Connecticut, resulting in one place receiving a foot of snow in 90 minutes and radar signatures for snowfall that were virtually off the charts.  Hamden, CT came in with the highest snowfall in the northeast at 40 inches.

Secondly, this system had two parts to it, both of which merged together more majestically that I've ever seen two system do.

Lastly, the system successfully pulled off a significant "wrap-around" precipitation maneuver, which I have never seen done to such an effect, due to the western end being enhanced by the merged energy of the second half of the system.

You can see these features for yourself in this loop:

0:06 - The two parts of the storm system begin to merge and fill in the gap between them
0:08 - 50+ dBZ radar signature for snowfall, about 3-5 inches an hour (incredibly rare), begin to show up in Long Island, NY and move into Connecticut.
0:10 - The two parts of the system are fully merged and have filled in the entire gap
0:11 - The precipitation and energy from what was the second part of the system are swung southward down eastern NY and into northern NJ, creating a rare enhanced wrap-around effect.

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