Late next week into the weekend, models continue to trend toward an
increasingly amplified pattern across the CONUS as a highly
amplified ridge builds over the West, while multiple upper level
shortwaves are predicted to dig southeastward from central Canada
toward the northeastern U.S. eventually carving out a large trough
over the eastern third of the U.S.
Main upper low pulls northeast into central Quebec and elongates
before eventually shearing out all together. Meanwhile several
pieces of potent mid level shortwave energy will dive southeastward
out of central Canada, not only maintaining, but helping to dig the
eastern U.S. trough further south and keeping the chances for rain
and snow in the forecast for the remainder of the period. At the
surface, a series of cold fronts will cross the lower Great Lakes
during this time, with models in fairly good agreement on a final
cold FROPA sometime around Saturday night/early Sunday delivering a
shot of very cold arctic air for by March standards, with it
possibly feeling downright wintry around here by the second half of
the weekend.