March AO Anomalies

[vortex95]

Apologies if this has been posted in some form already.  I haven't had the time to look though

all recent posts.

 

The following graph shows other March months with such a large AO anomaly.

http://home.comcast.net/~trwplusa/marchAO.gif

I looked back at the previous years listed,

In March 1962, we got this.
http://en.wikipedia.org/wiki/Ash_Wednesday_Storm_of_1962

March 1970 - I did not find any one big outstanding storm on the E Coast, but it was a stormy
month with multiple low pressure affecting the NEUS.

In March 1984, there was this:

12z sfc 3/29/84
http://home.comcast.net/~trwplusa/bliz84sfc1.jpg

12z IR 3/29/84
http://home.comcast.net/~trwplusa/bliz84ir.jpg

Reanalysis sfc panels and aloft.
http://www.meteo.psu.edu/~fxg1/NARR/1984/us0329.php

I witnessed this blizzard first hand.  One of the nastier spring blizzards New England has

seen in the past century.  8-16" of snow driven by hurricane force winds.  Blue Hill
gusted to 108 mph and 97 mph on MVY.  Exceptional amount of thundersnow.
Low dropped to 963 mb off the Delmarva, only 3 mb higher than the Bliz of 93.
Big tornado outbreak in the Carolinas the day before.  One tornado in SC was
2.5 mi wide at one point.  540 thk across NNE?...no problem despite the end of March!