Quite simply a number of flights were delayed, diverted and cancelled this morning which should not have been had an appropriate level of advance planning and in particular a timely response taken place. Be it SN or RASN (splitting degrees?) the warning signs were all there for anyone, even with minimum experience, to see. I only hope that lessons have been learned for the remainder of "our winter" and that the response is more appropriate next time. Last year you did well. Your first efforts this year left a lot to be desired and unfortunately have been costly to all of us . No excuses. You can and should do better MAN.