Well, between Grant County today and Wabash County last evening, I checked all of the spots where I've found them in the last few years, as well as a couple of new areas and have one small grey to show for it. One year ago tomorrow (May 3), I found 78 yellows and 23 greys in these same spots. So, either:
a: They are later than last year in this area
b: Every one of my spots coincidentally are not going to produce this year
c: It's going to be a bad year for this area
I'm going to say a. I know others have mentioned signs that the morels are up, mine is that when the apple trees are in bloom, it's time to look for yellows. I have noticed that the apple trees are budding, but not in full bloom in Huntington and surrounding counties. As another poster mentioned, it is beginning to get dry. After a warm rain Monday/Monday night and temperatures in the upper 70's and lows in the 50's, by Wednesday or Thursday they should be going strong.