The 3 Day Weather Outlook app takes data directly from the SPC and puts it in the form of an interactive mapping application for ease of use. The data layers include the following. - Day 1 Tornado Chance - Day 1 Severe Weather Chance - Day 1 Severe Hail Chance - Day 1 Damaging Winds Chance - Day 2 Severe Weather Chance - Day 3 Severe Weather Chance - Days 4-8 Severe Weather Chance - WPC Winter Weather Threats
