A cool, wet spring is keeping the wildfire hazard to a minimum in many parts of Colorado. But, according to a CU-Boulder wildfire expert, it would only take a few weeks of hot, dry weather to create a potentially dangerous fire season. "The really critical time period is June," said Tom Veblen, a professor of geography at CU-Boulder who studies the history of wildfires in the West. "It just takes a few weeks of really dry weather, high temperatures and, most importantly, wind."