Tomorrow is the first day of spring, but snowmobilers are sure glad to see what’s happening on this last day of winter.”I told people in the Snowmobile Trail Report, the fat lady’s not singing yet, but boy is she humming loud,” said Cathy Mazzuchelli, of Caribou’s Parks & Rec. Department.Snowmobile trail conditions right now, except for a few areas, are rather poor. Mazzuchelli blames the conditions on two major thaws this season and the onset of spring.”It’s been a tough winter and we still have some pretty good snowpack in a lot of areas, but there is no contiguous trails now.”Mazzuchelli says the good sled riding now is mostly in Northern Aroostook. “The Fort Kent/St. Francis/Allagash/Eagle Lake area has a good snowpack. It’s going to cool off a little bit. They’re going to try and get out and groom a little bit.”Mazzuchelli adds Oxbow south to Shin Pond has a pretty good snowbase as well, but the approaching storm Tuesday into Wednesday may be a case of “too little, too late.”"We’d have to have some pretty substantial snow and at this juncture, most projects are out of money and it’s been a pretty hard winter for them.”Cathy says for most groomers it will be wait-and-see what the storm brings before they decide whether to groom trails. She expects the one’s in northern aroostook who already have decent snowpack, and can afford to do so, will be out grooming for weekend riders.