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March weather in vienna5/3/2023 ![]() Throughout the risk area, the environmentally favorable conditions for severe weather were set in motion due to the presence of abundant moisture, instability that was expected ahead of a cold front starting from north-central Texas, and intense wind shear prevalent across the entire region. Īfter introducing a massive level 3/enhanced risk for March 2 on February 28, which now included portions of southeastern Oklahoma, the SPC upped the threat to a level 4/moderate risk, throughout a corridor centered along the Ark-La-Tex region, clipping into extreme southeastern Oklahoma, on March 1. The Storm Prediction Center's Severe Weather Outlook for March 2, 2023Īs a large, widespread, and damaging storm complex event was occurring throughout the Great Plains, which unleashed powerful damaging winds and tornadoes across Texas, Oklahoma, and Kansas, the SPC highlighted a potential area for the risk of severe weather in the following days, with the main, 30% area for severe weather centered around eastern Texas, northern Louisiana, southern Arkansas, middle portions of Mississippi, and western Alabama, as conditions were expected to be very favorable for the development of thunderstorms capable of all severe weather hazards. A large, 30% risk for strong, damaging wind gusts was also placed along central and eastern portions of Arkansas, extending into northwest Mississippi and southwest Tennessee, as was a hatched corridor for very large hail was also introduced for this corridor. A slight risk, lined with a 5% risk for tornadoes, was issued around the main area of concern, and extended into central Tennessee, and northern Alabama. Given the favorable parameters in place, the Storm Prediction Center (SPC) issued a large corridor, extending from extreme northeastern Texas, most of central Arkansas, northwestern Mississippi, and southwestern Tennessee, were the highest probabilities for tornadoes were located. A large capping inversion, placed along northern Louisiana, was expected to contain the atmosphere from iniciating convective activity, but the presence of moisture, daytime heating in the area, and steep mid-level lapse rates, made the environment favorable for severe weather, including the possibility for supercells capable of all hazards. While confidence for a widespread severe weather outbreak increased for March 2, an enhanced risk for severe weather, including the possibility for a few strong/ EF2+ tornadoes, was issued for March 1. In all, the storm system killed 13 people due to flooding and strong winds. Additionally, an outbreak of 33 tornadoes affected 12 states from the Southern United States to the Great Lakes. Part of the tornado outbreaks of 20–23 North American winterġ Most severe tornado damage see Enhanced Fujita scaleĪn intense low-pressure system produced widespread impacts across the United States in early March 2023.
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