![]() ![]() This was the third wettest year on record. Precipitation averaged across the CONUS in 2015 was 34.47 inches, 4.53 inches above the 20 th century average. Since 1895, when the national temperature records began, the CONUS has observed an average temperature increase of 0.14☏ per decade. The last year with a below-average temperature was 1996. This marks the 19 th consecutive year that the annual average temperature for the CONUS was above the 20 th century average. The warmest year on record was 2012 when the annual average temperature was 55.3☏. This was the second warmest year in the 121-year period of record for the CONUS. August 2, 2022.In 2015, the contiguous United States (CONUS) average temperature was 54.4☏, 2.4☏ above the 20 th century average. ![]() Yale Climate Connections (2022, July 26) Record rain in St.Yale Climate Connections (2022, July 29) Kentucky floods claim at least 16 lives, devastate region.Nature (2018, November 22) Why extreme rains are gaining strength as the climate warms.Louis (2022, August 1) JHistoric Flash Flooding in the St. National Weather Service - Jackson, Kentucky (2022, August 1) July 2022 climate summary.NASA Jet Propulsion Laboratory (2022, April 26) Clusters of Weather Extremes Will Increase Ricks to Corn Crops, Society.NASA Goddard Institute for Space Studies (2012, August) The New Climate Dice: Public Perception of Climate Change.Reuters (2022, August 2) Kentucky floods kill at least 37 as more storms forecast.Associated Press (2022, August 2) More rain, more bodies in flooded Kentucky mountain towns.NASA Earth Observatory image by Lauren Dauphin, using IMERG data from the Global Precipitation Mission (GPM) at NASA/GSFC. The floods come just a few months after Missouri, Illinois, and Kentucky were struck by extreme thunderstorms and tornadoes in wintertime. Recent events and scientific analyses suggest that once-rare events are becoming more likely as Earth’s atmosphere warms and can hold more moisture. Louis and Kentucky rains and flash floods were one-in-1000 years events. The NWS office in Jackson, Kentucky, recorded its wettest July on record with 14.86 inches (37.74 cm) of rain. The state and federal government has declared much of eastern Kentucky a major disaster area. Between 8 and 10 inches (20 to 25 cm) of rain fell within 48 hours, and 4 more inches arrived on July 31. Dozens of people died and hundreds remain unaccounted for amid power and communications outages. In Appalachian mountain communities of eastern Kentucky, heavy rain on July 27-28 quickly ran down hillsides, causing mudslides and filling rural valleys with flood water. Two days later, several hours of evening downpours fell on saturated soils and into tributaries and storm drains that were already overflowing, leading to a second bout of flash floods. Louis metro area, causing extensive damage to residences and businesses. Flash floods swamped several parts of the St. NWS added that 25 percent of the city’s annual rain fell in just 12 hours 7.31 inches (18.57 cm) is the normal total for July and August combined. Louis) set a new record with 8.64 inches (21.95 cm) of rain in 24 hours the previous record was set in 1915 by the remnants of a hurricane. The National Weather Service (NWS) noted that rainfall rates occasionally reached two inches per hour, and nearly 8 inches fell in eight hours across a long swath from Montgomery County, Missouri, to St. Louis, Missouri, where a series of “ training thunderstorms” rolled through the region one after the other. The deluge started on July 25-26 around St. Due to the averaging of the satellite data, local rainfall amounts may be significantly higher when measured from the ground. ![]() The data are remotely sensed estimates that come from the Integrated Multi-Satellite Retrievals for GPM (IMERG), a product of the Global Precipitation Measurement (GPM) satellite mission. The darkest reds reflect the highest rainfall amounts, with broad swaths of Missouri, Arkansas, Illinois, Indiana, and Kentucky receiving more than 20 centimeters (8 inches) of rain. The map above depicts a satellite-based estimate of rainfall from July 25-31, 2022. As noted previously by the Intergovernmental Panel on Climate Change and the American Meteorological Society, extreme precipitation events and weather are becoming more likely with climate change. Record-breaking rainfall brought devastating flash floods and landslides to Missouri, Kentucky, and other parts of the central United States in the last week of July 2022. ![]()
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