He's a meteorologist. Some love him. A certain member, here, who stayed at a Holiday Inn Express last night thinks he's awesome. I have no opinion one way or the other, because like all mets he's right sometimes and wrong a little bit more often. The weenies on the AmWX board really hate him, though, because he only shows up so that he can piss on their predictions of 4' of snow.
For those who don't know, DT is Dave Tolleris, Class of '79 from West Windsor, if I recall correctly (a coworker graduated HS with him) and he now goes by WxRisk - see the link. I wouldn't say awesome, but he is entertaining in his scathing way, and I do like that he's completely independent, with his goal being to get it right (he makes money from commodities forecasting, so he doesn't accept ads on FB). He's been way ahead of the curve on this one calling for major snows throughout VA/MD/DE and especially SE VA, including Richmond for days, when the NWS and other pros down there were saying mostly rain and/or less snow. And he's been downplaying snowfall amounts north of Trenton, which still looks correct, relatively speaking vs. DC to Philly, although he may end up being under around here, but who knows. You are right about the NYC weenies hating him, as he loves to needle them. I do follow him pretty closely and I'd say he has one of the better records out there - another thing I like is that he'll also be just as brutal on himself as anyone else, when he's wrong.
https://www.facebook.com/WxRisk/