The temperature gradient and wind shift across the warm front provided the necessary convergence and spin to initiate and intensify the storms, even in the presence of low convective instability (a more traditional precursor to severe thunderstorms and tornadoes).ĭespite the quick moving storms hitting during the morning commute, no fatalities were reported. The result was a tremendous amount of wind shear and lift caused by feedback between the surface low and the jet stream. Meanwhile, extreme winds in the jet stream several thousands of feet above the ground (nearly 200 MPH at 35,000 feet) and a rapidly deepening area of low pressure at the surface tracked directly over the area. Unusually warm and humid conditions hugged the region south of a warm front across northern Virginia and north-central Maryland just after daybreak, the product of several days of winds pushing toward the area from the Gulf of Mexico. Mary's County on February 24th, 2016 and an EF1 tornado swept through parts of Charles County on February 25th, 2017. Mary's and Calvert Counties on February 21st, 2014 another EF0 tornado briefly touched down in St. An F1 tornado touched down in Frederick County on February 13th, 1966 an EF0 tornado tracked across parts of St. Prior to this outbreak, only four tornadoes had ever been reported in the state of Maryland in the month of February since 1950, according to National Weather Service Storm Data. In just over two hours, five of the confirmed tornadoes struck the state of Maryland, unprecedented for the month of February. Summary by Dan Hofmann, Meteorologist at NWS Baltimore/Washington Individual reports by NWS StaffĪn historic tornado outbreak swept across the Mid-Atlantic during the early morning hours of Friday, February 7th, 2020.Īs of early the next morning, over 220 preliminary reports of severe weather had been received from Virginia northeastward into Maryland, Delaware, Pennsylvania and New Jersey, including six confirmed tornadoes. Half a dozen tornadoes confirmed across Virginia and Maryland Early Season Tornado Outbreak Sweeps Across Mid-Atlantic
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