STORM LAKE OPERATIONS • BUENA VISTA COUNTY WINTERIZATION
WHY THIS EXISTS: In January 1994, forty-three households in Storm Lake went dark when the blizzard hit. Not from lack of fuel—they had calculated for a mild winter. This tool calculates for the worst night you will face. Base temperature: 65°F (ASHRAE standard). Design outdoor temp: -30°F (Zone 4b historical extreme).