They can be squirrelly bastards. Often a very narrow zone of heavy snow, precip-tpye issues, overall very sensitive to small modelling changes.. OTOH, they tend to give SWCT our best chances for huge totals.
lol - this weekend's storm was stressful...five days of fighting a (successful) battle against the sleet line. Now right into this? I can't take it...OTOH.....but please sir, may I have another?