JCT777 wrote:Jim Cantore covering a snowstorm up in either RI or MA a few winters ago, when thundersnow occured. The look on his face when the lightning flashed was priceless!

Jim Cantore was in the Worcester, Massachusetts area during that thundersnow event. I was 45 to 50 miles ESE of him, at my home in Bridgewater, Massachusetts.
I just did a couple of searches and found this interesting Public Information Statement from the Taunton, Massachusetts National Weather Service office. (I am not sure [the date sounds at least somewhat familar] if this was the day of the thundersnow Cantore experienced, but I found it interesting):
PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
910 PM EST FRI DEC 06 1996
HERE ARE SOME SNOW REPORTS FROM SELECTED LOCATIONS AROUND SOUTHERN
NEW ENGLAND. ALL OBSERVATIONS WERE TOTALS FROM THIS SNOW EVENT
WHICH BEGAN EARLY THIS MORNING. PLEASE DISREGARD THE 80 MPH WIND
GUST TRANSMITTED IN THE 130PM STATEMENT.
THANKS TO ALL LOCAL MEDIA AND COOPERATIVE OBSERVERS FOR PROVIDING
REPORTS.
SNOWFALL /IN INCHES/
...NWS OFFICES AND MAJOR COMMERCIAL AIRPORTS...
BLUE HILL OBSERVATORY /BHO/200PM 4.0
BOSTON LOGAN AIRPORT /BOS/ 700PM 3.4
TAUNTON NWSFO /BOX/ 700PM 5.0
HARTFORD /BDL/ 120PM 2.8
PROVIDENCE /PVD/ 100PM 4.0
WORCESTER /ORH/ 700PM 10.0
...EASTERN MASSACHUSETTS...
NEW BEDFORD FINAL 2.0
FALL RIVER 840PM 3.0
LYNNFIELD 830PM 4.0
SOMERSET 820PM 5.5
ACUSHNET 820PM 2.4
NORTON 820PM 4.4
HOPKINTON 800PM 8.0
E. WOBURN 800PM 6.0
MAYNARD 700PM 8.5
DEDHAM 645PM 4.0
W. MANSFIELD 610PM 5.0
FRANKLIN 600PM 4.0
GLOUCESTER 530PM 3.5
MANSFIELD 530PM 3.6
BELLINGHAM 510PM 3.1
WINTHROP 500PM 3.0 PK GUST 46MPH 921AM
NEWBURYPORT 500PM 4.0
KINGSTON 500PM 1.0
PLYMOUTH 435PM GUSTS TO 50 MPH
MARLBORO 400PM 8.7
W. BOYLSTON 335PM 7.2
BEDFORD 330PM 5.5
W. TOWNSEND 255PM 7.3 29F
WESTBORO 235PM 5.5
BILLERICA 230PM 6.0
LEXINGTON 230PM 6.0
SCITUATE 230PM 1.0
NORWELL 230PM 2.0
WAKEFIELD TREES/WIRES DOWN
HINGHAM 155PM 0.5
MARTHA/S VINEYARD 125PM PK WIND GUST 50 MPH NNE
FALMOUTH 1212PM GUST 61 MPH OTIS A.F.B.
BRIDGEWATER 115PM THUNDERSNOW
FOXBORO 115PM THUNDERSNOW
WRENTHAM 1245PM 3.5 THUNDER 110PM
HYANNIS 1245PM RA/SN MIX
SOUTH WEYMOUTH 1235PM 1.0
BREWSTER 1230PM 0.5 G41 MPH
DUXBURY 1200PM 0.9 33F