What are lightning and thunder?

Severe weather can, and does, occur throughout the year in the Commonwealth! Knowing the risks, being prepared and having an emergency plan could save your ... 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 ... A condensation funnel is made up of water droplets and extends downward from the base of the thunderstorm. If it is in contact with the ground it is a tornado. Abstract The term “tornado outbreak” appeared in the meteorological literature in the 1950s and was used to highlight severe weather events with multiple ... A Tornado Risk Index score and rating represent a community's relative risk for Tornados when compared to the rest of the United States. Mar 3, 2025 ... What is a QLCS tornado? We do have a tornado risk in Oklahoma tonight. Including a chance for these types of twisters. #oklahoma #meteorologist ... Jul 18, 2016 ... A violently rotating column of air, pendant from a cumulonimbus cloud, and nearly always observable as a funnel cloud or tuba. A tornado is a relatively small-diameter column of violently rotating air developed within a convective cloud that is in contact with the ground All local channels will interrupt programming to issue Tornado Warnings and advise you where the tornado is located. ​. Criteria for Siren Activation. The ... 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 ...