####018005280#### NOUS45 KBOU 070859 PNSBOU COZ030>051-072300- Public Information Statement National Weather Service Denver/Boulder CO 259 AM MDT TUE MAY 7 2024 ...Today in metro Denver weather history... 4-8 In 1969...from the 4th to the 8th...heavy rains caused flooding on Boulder Creek in Boulder...which resulted in one death on the 7th. Flooding also occurred on Bear Creek in Sheridan and on the South Platte River in Denver. Rain over most of the eastern foothills started late on the 4th and continued with only brief interruptions in many areas until the morning of the 8th. Very high rates of rainfall occurred on the 6th and 7th with the greatest intensities in a band along the foothills from about 25 miles southwest of Denver northward to Estes Park. Storm totals by both official and unofficial measurements exceeded 10 inches over much of this area and were over 12 inches in some localities. Heavy snow fell in the higher mountains and in the foothills later in the period. The saturation of the soil resulted in numerous rock and land slides...and the heavy run-off caused severe damage along many streams and flooding on the South Platte River. Many foothill communities were isolated as highways were blocked and communications disrupted. Roads were severely damaged over a wide area...and a large number of bridges washed out. Many roads were closed due to the danger from falling rocks. A building in Georgetown collapsed from the weight of heavy wet snow. In Boulder...a man drowned when caught by the flooding waters of Boulder Creek...and a patrolman was injured. Rainfall totaled 7.60 inches in Boulder with 9.34 inches recorded at the Public Service Company electric plant in Boulder Canyon. In Morrison...rainfall totaled 11.27 inches in 4 days. Heavy rainfall totaled 4.68 inches at Stapleton International Airport over 3 days from the 5th through the 7th. Rainfall of 3.14 inches was recorded in 24 hours on the 6th and 7th. Downstream flooding continued along the South Platte River until the 12th when the flood crest reached the Nebraska line. 6-7 In 1873...from the 6th to the 7th...snowfall totaled 8.9 inches in downtown Denver. Most of the snow fell on the 6th. 7 In 1904...west winds were sustained to 48 mph with gusts to 60 mph. A shower produced 0.16 inch of rain. In 1953...a microburst caused a brief wind gust to 58 mph at Stapleton Airport. In 1958...3/4 inch diameter hail fell over south metro Denver... 10 miles southwest of Stapleton Airport. In 1977...baseball size hail damaged windows in Wheat Ridge. Hail was 4 inches deep on the ground in Arvada. Hail 3/4 to 1 inch diameter fell in Westminster and Kittredge. In 1990...a fast moving cold front produced wind gusts of 40 to 60 mph. Brighton reported a wind gust to 57 mph...while north wind gusts to 44 mph were measured at Stapleton International Airport. In 1995...severe thunderstorms struck Aurora. Hail piled 4 to 5 inches deep in the vicinity of Quincy Reservoir in south Aurora. Lightning struck an Aurora Police communications tower causing significant malfunction to the primary system. Minor damage was sustained when lightning struck an apartment building. Hail...up to 1 1/4 inches in diameter...while soft and slushy...accumulated up to 6 inches deep in 15 minutes. Many streets were closed for an hour or more due to flooding caused by heavy rain and melting hail stones. Some trees were stripped of their leaves. Hail as large as 1/2 inch diameter was measured at Denver International Airport where a funnel cloud was sighted. In 2003...a tornado touched down briefly near Bennett...but did no reported damage. In 2005...severe thunderstorms produced 3/4 inch hail near Brighton and a thunderstorm wind gust to 60 mph near Fort Lupton. In 2014...severe thunderstorms produced large hail...from 1 to 1 1/2 inches in diameter...across parts of Arvada...Broomfield... Dacono...Northglenn and Thornton. In 2015...a severe thunderstorm produced hail...up to walnut size...in Elbert County. A weak tornado touched down briefly near Ft. Lupton. In 2017...a 37-year-old woman and her horse were killed near Sedalia after lightning hit a nearby tree. A teenage girl was also seriously injured. Damaging microburst winds downed trees and power poles across parts of Adams...Arapahoe...Denver and Douglas Counties. Electrical lines and branches were also snapped causing scattered power outages. 7-8 In 1958...rainfall from the 7th to the 8th...totaled 2.50 inches at Stapleton Airport. $$