 Temperatures during the previous two days of the incident had remained in the mid-20s Fahrenheit (around -3.5 °C) and light snow was on the ground, but by mid-day on February 24 the temperature had risen to the mid-50s Fahrenheit (around 12.5 °C) and the sun was showing through clear skies.About 20 minutes before the LPG removal was to begin, the area was tested with dedicated gas detection equipment and no leaks were found.The Waverly police and fire chiefs were on the scene and the hazmat crew was moving its equipment to start the transfer when at 2