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EF4. 97 mph (156 km/h) 6. Tornado outbreak of April 13–16, 2012 – This was day 2 of aforementioned outbreak; it was only the second high risk to be issued on Day 2 (the day before the event; first Day 2 high risk was for April 7, 2006) and the first/only to date ever issued on the initial (0600Z) Day 2 outlook. [277]
Progression of a well-anticipated extremely critical event across the Central Plains on March 6, 2017. This event produced wildfires that burned 1,200,000 acres of land, and killed seven people. An extremely critical fire weather event is the greatest threat level issued by the NWS Storm Prediction Center (SPC) for wildfire events in the United ...
June 12–13, 2013 derecho series: June 12–13, 2013: Two derechos developed; one on June 12 and another on June 13. Late June 2013 Chicago derecho: June 24, 2013: One person was killed by EF1 tornado near Muscatine, Iowa. [36] Four other tornadoes were also confirmed during this event. Late June 2014 Derechos: June 30-July 1, 2014
The Storm Prediction Center issues convective outlooks (AC), consisting of categorical and probabilistic forecasts describing the general threat of severe convective storms over the contiguous United States for the next six to 192 hours (Day 1 through Day 8). These outlooks are labeled and issued by day, and are issued up to five times per day.
This is a list of meso-gamma mesoscale discussions, which are issued by the National Oceanic and Atmospheric Administration ’s Storm Prediction Center for small-scale analysis of mesoscale features, typically during high-confidence and high-impact severe weather events. [1][2][3][4][5] These can be for tornadoes believed to be at least EF2 on ...
The SPC issued an enhanced-risk outlook, including parts of southern and western Nebraska, northern Kansas, and extreme northeastern Colorado on June 7. [97] Tornadic activity began with an EF1 tornado northwest of Van Tassel, Wyoming , which damaged fences and farm buildings and produced a measured wind gust of 78 mph (126 km/h).
An intense low-pressure system produced widespread impacts across the United States in early March 2023. Additionally, an outbreak of 35 tornadoes affected 12 states from the Southern United States to the Great Lakes. In all, the storm system killed 13 people due to flooding and strong winds. At least 17 other people were injured.
Part of the 2021–22 North American winter and tornado outbreaks of 2022. The April 2022 North American storm complex affected much of the Rocky Mountains and the Midwestern United States with tornadoes, heavy snow, and gusty winds. The system in general first began impacting the Northwest on April 11, before moving eastward into the Rocky ...