What are dry air intrusions?

Feb 26, 2024 ... Additional scientific description. A large tornado in which the condensation funnel is at least as wide horizontally at the ground as it is in ... Mar 31, 2023 ... A tornado warning is more severe than a watch, according to the NWS. When a warning is issued, there is imminent danger and a tornado was ... Tornado Tracking. Forecast basics. Identifying and understanding ingredients. Search for boundaries and gradients. Looking for what could go wrong. The key atmospheric ingredients that lead to tornado potential are instability - warm moist air near the ground, with cooler dry air aloft and wind shear - a ... Watches are issued by the Storm Prediction Center for counties where tornadoes may occur. The watch area is typically large, covering numerous counties or even ... A tornado watch means there is the possibility of a tornado happening, but that does not mean there is a tornado occurring at the time. A tornado is a rotating funnel-shaped cloud that drops out of a storm cloud to the ground. Whirling winds range from 75 to 300 miles an hour. Tornado Definition ... Tornado - A violently rotating column of air touching the ground, usually attached to the base of a thunderstorm. Tornadoes are nature"s ... The most obvious difference between a tornado and hurricane is that a hurricane's horizontal scale is about a thousand times larger than a tornado. In addition, ... Mar 15, 2025 ... According to the Storm Prediction Center a PDS watch is issued when “the forecaster has high confidence that multiple strong (EF-2 or EF-3 on ...