How significant can the midyear report be?

<p>I basically have a 2.7 and an upward grade trend. the first two years were very poor and my third year was pretty good. I now have 4 ap's senior year and doing pretty well. my first semester average will be around a 4.2 ( i did the math myself, wont be written on mid year report), just to give you an indication of the overall quality of the grades. How much influence can my first semester grades have? what will admissions counselors be thinking/debating? can i possibly get into northeastern, binghamton, stony brook and other schools of similar caliber? i also have a 1900 SAT (720 M, 580 CR, 600W). any help would be much appreciated</p>