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The second band of rainfall dissipated around 5:00 PM. In total, widespread rainfall of 2.0 to 9.0 inches (5.1 to 22.9 cm) occurred across the central portion of the Chicago metropolitan area over an 18-hour period, with peak rainfall occurring near the western border of Chicago near Berwyn and Cicero. [1] [3]
Here are rainfall amounts, in inches, from the last 24 hours (unless otherwise noted) by locality, according to National Weather Service St. Louis: Illinois locations. Belleville: 6.23, 6.33 ...
The greatest amount of precipitation that fell in a 24-hour period was 9.35 in (237.5 mm) on August 13–14, 1987. That event also set the records for heaviest 6 and 12 hour rainfall amounts and contributed to August 1987's record rainfall. The heaviest calendar day snowfall was 18.6 in (47.2 cm), again at O'Hare, on January 2, 1999. [18]
More than 630 flights impacted at Chicago O'Hare. ... Each of the green dots is a flash flood report from the past two hours. The pins are debris flows. ... and they account for more than $72.8 ...
In all, a record of 32 tornadoes were confirmed in the county warning area of National Weather Service Chicago, a record previously held by the July 2014 derecho sequence and the Tornado outbreak of March 31 – April 1, 2023. [15] One fatality was confirmed in Cedar Lake, Indiana. [1]
Death Valley got 1.66 inches of rain earlier this week, the National Weather Service said early Wednesday in a 72-hour precipitation report. A temporary lake at Badwater Basin is rare, according ...
Average yearly precipitation for Illinois varies from 48 inches or 1,220 mm at the southern tip to 35 inches or 890 mm in the northern portion of the state. Normal annual snowfall exceeds 38 inches or 0.97 m in Chicago, while the southern portion of the state normally receives less than 14 inches or 0.36 m. [1]
Additionally, there has been a 40% increase in the number of days with precipitation of 2 inches (5 cm) or more. More frequent heavy precipitation events are a predicted outcome of climate change. [6] Historically, average snowfall ranges from about 10 inches (25.4 cm) in southern Illinois to 40 inches (100 cm) in northern Illinois.