And we have been seeing the I Thi images all week of the monster blast that dropped record snow on western New York. Now as residents are digging out, there's a major snow melt that could mean historic flooding. Rob Marciano is in Buffalo with the latest on these developments. Hope you're staying warm. We are. Temperatures in the 20s right now, Paula. But we're going to warm up. Some of the snow is going to melt. What a struggle it has been for south Buffalo. So much snow in some cases, shoulder, head high snow. A snottering amount of snow here. The big dig is on south of Buffalo. Buried residents getting out of shoulder-deep snow. Trying to remove the piles of snow on roofs, yards and driveways. Some still stuck, calling out for help. We're riding with the chief of the fire department, responding to more than 250 emergencies since Tuesday. There's a 91-year-old woman inside the house. We need to get her out because this roof might come down. I'd rather take you out when I had the chance than dig you out. Reporter: Within minutes, another call. Reports of a man lying unresponsive in his garage. We speed through narrow, snow covered streets. It's not good news. Out of respect, back the cameras back. A man died of an apparent heart attack, trying to dig the home out of the snow. Another fatality for the snow. And warming temperatures and rain means flood watches. The warming will bring melting. Melting will bring water. Water will bring floods. Reporter: Homes in this part of New York state are built with roofs that can witstand three and a half to four feet of snow. That's about 20,000 pounds. The current snow pack has 6 inches of water, and heavy rain and soaring temperatures, hundreds of the snow-covered roofs are at risk for collapse. Putting homeowners, the New York National Guard and others in a race to dig the homes out in the next 36 hours. Volunteers are in full force. The shovel brigade mob of north Buffalo to March south and help them dig out. The melt is coming. We have the flood watches tomorrow. A little freezing rain today before the real rains tomorrow night. Could be heavy. As much as a half an inch of rain. And then temperatures really rise. Tomorrow, near 50 degrees and near 60 on Monday. Look at the temperatures. 66 degrees in New York City, 64 in Atlanta, 69 in D.C. And then more cold air come. So the next three days, guys, is going to be critical. How much of the snow melts and where it goes, that's why we think there's going some flooding. Back to you.
This transcript has been automatically generated and may not be 100% accurate.
http://www.youtube.com/watch?v=f78bPjl2auc
http://abcnews.go.com/GMA/video/western-york-residents-begin-dig-massive-snowstorm-27101408
