2012 North American derecho

2012 North American derecho was a severe and destructive weather event that affected the eastern United States and southeastern Canada, causing widespread damage and power outages, particularly in the Washington, D.C. area, Virginia, and West Virginia. The event was characterized by a long-lived, straight-line wind storm, similar to those experienced in derechos in the Great Plains and the Ohio Valley. The storm system was fueled by a strong high-pressure system over the Canadian Prairies and a low-pressure system over the Gulf of Mexico, which created a strong pressure gradient that drove the winds. The National Weather Service issued numerous tornado warnings and severe thunderstorm warnings as the storm system moved eastward, affecting areas such as Pittsburgh, Philadelphia, and Baltimore.

● Introduction

The 2012 North American derecho was a complex weather event that involved the interaction of multiple atmospheric factors, including a strong jet stream and a cold front that moved eastward from the Rocky Mountains. The storm system was influenced by the North American Monsoon, which brought moisture from the Gulf of California and the Gulf of Mexico into the region. As the storm system developed, it was monitored by the Storm Prediction Center, which issued a moderate risk of severe thunderstorms for the affected areas, including Indiana, Ohio, and Kentucky. The National Oceanic and Atmospheric Administration (NOAA) also tracked the storm system, using data from weather satellites such as GOES-13 and GOES-15 to monitor its movement and intensity.

● Meteorological history

The meteorological history of the 2012 North American derecho is complex and involves the interaction of multiple atmospheric factors, including a strong high-pressure system over the Canadian Prairies and a low-pressure system over the Gulf of Mexico. The storm system developed in the Great Plains on June 29, 2012, and moved eastward, affecting areas such as Omaha, Des Moines, and Kansas City. As the storm system moved eastward, it was influenced by the jet stream, which increased its speed and intensity, causing widespread damage and power outages in areas such as Cincinnati, Columbus, and Cleveland. The National Centers for Environmental Prediction (NCEP) used computer models such as the Global Forecast System (GFS) and the European Centre for Medium-Range Weather Forecasts (ECMWF) model to predict the storm's movement and intensity.

● Impact

The impact of the 2012 North American derecho was significant, with widespread damage and power outages reported in areas such as Washington, D.C., Virginia, and West Virginia. The storm system caused over 20 deaths and injured many more, with the majority of the fatalities occurring in Virginia and West Virginia. The storm also caused significant economic losses, with estimated damages of over $2.5 billion, making it one of the costliest weather events of 2012, surpassing the damages caused by Hurricane Isaac and Hurricane Sandy. The Federal Emergency Management Agency (FEMA) responded to the disaster, providing aid to affected areas such as Charleston, West Virginia, and Richmond, Virginia.

● Affected areas

The affected areas of the 2012 North American derecho included the eastern United States and southeastern Canada, with the majority of the damage and power outages occurring in areas such as Washington, D.C., Virginia, and West Virginia. The storm system also affected areas such as Maryland, Pennsylvania, and New Jersey, causing significant damage and disruptions to transportation systems, including Washington Dulles International Airport and Reagan National Airport. The United States Department of Agriculture (USDA) reported significant crop damage in areas such as Illinois, Indiana, and Ohio, with the majority of the damage occurring to corn and soybean crops. The National Park Service also reported damage to national parks such as Shenandoah National Park and Great Smoky Mountains National Park.

● Aftermath

The aftermath of the 2012 North American derecho was significant, with widespread power outages and damage reported in areas such as Washington, D.C., Virginia, and West Virginia. The American Red Cross responded to the disaster, providing aid to affected areas such as Charleston, West Virginia, and Richmond, Virginia. The United States Army Corps of Engineers also responded to the disaster, providing assistance with debris removal and infrastructure repair in areas such as Baltimore and Philadelphia. The National Weather Service conducted a thorough review of the event, using data from weather radar and weather satellites to improve its understanding of the storm's movement and intensity, and to develop new strategies for predicting and mitigating the effects of similar events in the future, such as the Derecho of June 2020. The Federal Aviation Administration (FAA) also conducted an investigation into the impact of the storm on aviation systems, including air traffic control and airport operations. Category:2012 natural disasters in the United States