Guidance continues to advertise a series of lows impacting the east through the medium range, with at least 2 possibly potent systems beyond the previously-mentioned storm affecting Atlantic Canada.

The first looks to track through the GL around April 4th and then into the Maritimes and eastward for the 5th where significant snow is possible.

12z GFS @ hour 96 – valid early Wednesday the 5th:

gfs_mslp_pcpn_frzn_secan_16

12z CMC, same timeframe:

gem_mslp_pcpn_frzn_secan_16

The potential system beyond that could be on a similar trajectory, heading for ON/QC around the 6th – 7th of April. More uncertainty with the details but that’s not terribly surprising at this range.

This is the low clustering from the 12z GFS ensembles for that period, hour 144:

gefs_slp_lows_east_25

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