Description: On March 5, 2022, an EF-4 tornado hit Iowa and caused 6 fatalities, according to preliminary reports.1 The supercell thunderstorm that produced the destructive tornado also produced damaging wind and hail events. According to the National Weather Service, this tornado was the first EF-4 tornado in Iowa since 2013 and was the second longest tornado path since 1980, with a path length of 69.5 miles.

Description: On May 20, 2022, an EF-3 tornado hit Gaylord, Michigan and caused 2 fatalities and 44 injuries, according to the National Weather Service Damage Survey [2]. The supercell thunderstorm that produced the destructive tornado also produced damaging wind and hail up to 3 inches in diameter [3]. According to data from the National Center for Environmental Information, this tornado was the first EF-3+ tornado in Michigan since 2012 and first EF-3+ tornado in Michigan in May since 1991 [1].

Description: Supporting Excel file for Actuarial Weather Extremes Series Michigan EF-3 Tornado: May 20, 2022 report.

Description: In the early morning of July 26, 2022, an extreme precipitation event hit St. Louis, leading to a new all-time record for daily precipitation and widespread flash flooding in the metro area, with one fatality reported so far. Government officials at the state, county, and city levels declared states of emergency, allowing affected residents and business to access assistance and resources. Several roads and Metrolink stations were submerged and impassable. Metrolink damage is estimated at $18-20 million, with some stations expected to be shut down for two weeks.

Description: Actuarial Weather Extremes: November 2021 Extreme Precipitation, Drought, and Late Season Tornadoes This report examines weather conditions for precipitation, drought conditions, and late season tornadoes that are extreme in an historical context. Extreme Precipitation in the Pacific Northwest: Many Global Historical Climatology Network (GHCN) stations in Northwest Washington state and Southwest British Columbia had record November daily precipitation amounts on November 14 and 15, 2021 when looking back to 1960. During and after those dates, many U.S. Geological Survey (USGS) stream gage stations in Washington had readouts that were from Flood Stage to Major Flood Stage. Drought Conditions increase in Continental U.S. as Drought Moves East: Severe drought conditions in the Western U.S. dissipated somewhat, but in the Continental U.S. as a whole, the footprint where drought conditions exist has increased overall, and is driven primarily by increased drought in South-central and Middle Atlantic states. Late Season Tornado Activity: Comparing the historical database of tornado activity and the recent activity in the state of New York, of 24 November tornadoes reported in New York since 1950, nine occurred on November 13, 2021. These late season tornadoes are rare in New York, and November 2021 was exceptionally active for these storms.

Description: This report series identifies and examines weather extremes in North America and beyond. Using data from the National Oceanic and Atmospheric Administration (NOAA), National Centers for Environmental Information (NCEI), NOAA Global Historical Climatology Network (GHCN), United States Geological Survey (USGS), and United States Department of Agriculture (USDA) among others; the reports identify and summarize unusual or extreme single-day or multi-day weather events which are significant in an historical context. The most recent report covers the tremendous scale of Hurricane Ian as it hit Florida and the geographic range of the perils associated with the hurricane.

Description: View the Exhibits - Hurricane Ian Data, 09262022 to 09292022(Excel file).