What is directional shear?

Abstract The term “tornado outbreak” appeared in the meteorological literature in the 1950s and was used to highlight severe weather events with multiple ... The sky may be sunny when you first hear a severe thunderstorm or tornado watch. After you learn of a watch, check weather information frequently: While watches ... Apr 4, 2025 ... Ever mix up a tornado watch with a tornado warning? Big difference! Tornado warning in your area? Take cover. People in a warning zone need to take cover ... The version used today—the Enhanced Fujita Scale—ranges from EF0 tornadoes with winds of 65 to 85 miles an hour, to EF5 tornadoes with winds exceeding 200 miles ... Over 85% of all tornadoes in Minnesota have occurred between May and August. Tornadoes are most common between 2:00 PM and 9:00 PM, but can and do occur at any ... May 21, 2021 ... If you have a well-built home, a basement, or a storm shelter, your safest course of action is to take shelter at home. However, if you live in ... Feb 7, 2024 ... Take a few minutes to develop a tornado emergency plan. Sketch a floor plan of your home or walk through each room and discuss where and how to seek shelter. Tornado Definition ... Tornado - A violently rotating column of air touching the ground, usually attached to the base of a thunderstorm. Tornadoes are nature"s ... using a deterministic analysis of NOAA tornado data to correlate the mapped frequency of strong tornadoes with four tornado wind speed zones: 250 mph, 200 ... tornadoes and tornado outbreaks by New World explorers and weather enthusiasts were referred to as “whirlwinds” (Redfield 1857), “hurricanes” (Brocklesby 1859), ...