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Public Information Statement
National Weather Service Denver/Boulder CO
259 AM MDT TUE JUN 11 2024

...Today in metro Denver weather history...

10-11 In 1882...heavy thunderstorm rains on the morning of the
        10th caused a rapid rise in Dry Creek...which enters the
        South Platte River at Fairview in present day south
        Denver.  This...combined with additional heavy rainfall
        on the 11th caused the South Platte River to overflow.
        Five people drowned and several houses were destroyed.
        Total losses in the city and suburbs was estimated at 75
        thousand dollars.  Total rainfall in central Denver was
        2.21 inches over the 2 days.
      In 2013...the high temperature of 99 degrees on the 10th
        broke the previous record maximum temperature of 97 for
        the date.  Also...the minimum temperature of 68 and high
        temperature of 100 degrees on the 11th established a new
        record for highest minimum and maximum temperature for
        the date.
11    In 1947...a trace of snow fell over downtown Denver.  Low
        temperature of 34 degrees was a record minimum for the
        date.
      In 1962...hail caused extensive crop damage near Hudson
        northeast of Denver.
      In 1970...stratiform rainfall totaled 3.16 inches at Stapleton
        International Airport.  This was the greatest amount of
        precipitation ever recorded on a calendar day in June.
        In addition...it was the greatest amount of precipitation
        ever measured during any 24-hour period in June.  The high
        temperature climbed to only 51 degrees...which was a record
        low maximum for the date.
      In 1973...large hail from 3/4 to 1 1/2 inches in diameter fell
        west of Boulder.
      In 1977...golf ball size hail was reported just south of
        Arapahoe County Airport...now Centennial Airport.  Lightning
        struck a home in Lakewood.
      In 1988...a 30-year-old man was seriously injured by lightning
        while mowing his lawn in Denver.
      In 1992...lightning started two house fires in the southern
        Denver suburbs where 3/4 inch hail fell and a funnel cloud
        was sighted.
      In 1999...severe thunderstorms formed over the Palmer Divide
        and moved across Douglas...Elbert...and Adams counties.
        Hail as large as 1 inch in diameter was reported in and
        near Castle Rock...Sedalia...Franktown...and Aurora.  Hail
        as large as golfballs accumulated several inches deep
        and caused a large section of a corrugated metal roof of
        a greenhouse complex to collapse near Franktown.  About a
        third of the roof covering the 30 thousand square foot
        building collapsed.  Thirty-five workers were trapped in
        the debris...but only 3 were treated for minor injuries.
        Hail 1 to 2 feet deep blocked the roadways and slowed the
        arrival of emergency vehicles.  Damage to the building
        was estimated to be around 3 million dollars.
      In 2006...a man was struck and killed by lightning as he was
        returning to his car after leaving the Mile High Flea
        Market near Henderson.  Two others were knocked down...but
        not injured by the lightning strike.  Severe thunderstorms
        produced large hail across the northern portion of metro
        Denver.  Hail to 1 1/4 inches in diameter was measured in
        Arvada...with 1 inch diameter hail reported near Fort
        Lupton.  Hail to 7/8 inch in diameter was recorded near
        Brighton...and hail...3/4 inch in diameter...fell near
        Keenesburg.
      In 2009...large hail pummelled portions of Adams...Arapahoe...
        Elbert and Douglas Counties.  Hail up to 1 1/2 inches in
        diameter was measured near Parker.
      In 2010...severe thunderstorms producing very large hail
        pummeled portions of Front Range Foothills and Urban
        Corridor.  The large hail ranged in size from 1 to
        2 1/2 inches...caused extensive damage to home and
        vehicles. The hardest hit areas included:  Brighton...
        Castle Rock...Greenland...Idledale...Mountain View and
        Thornton. The combination of heavy rain and hail
        destroyed 50 thousand acres of cropland in southeast Weld
        County.  Flash flooding forced the closure of State
        Highway 52...east of Prospect Valley. Several county roads
        were either flooded or completely washed out.  At Denver
        International Airport...0.69 inches of rainfall was
        observed.
      In 2015...thunderstorms produced flash flooding in Denver
        and parts of the metropolitan area.  In downtown Denver...
        parked cars had standing water rising midway up the wheels.
        Denver fire crews had to rescue motorists from flooded
        intersections and roads. In Glendale...two lanes of
        northbound Colorado Blvd. at Exposition Ave. were closed
        due to flooding. In Aurora...water was reportedly flowing
        over the roads at East 6th Ave. and South Pacadilly Road.
        Additional flooding was reported on South Gun Club Road...
        between East Alameda Ave. and East Exposition Avenue...
        forcing the closure of the road. Flooding occurred along
        Plum Creek and its tributaries. Four trails in Castle
        Rock were closed due to flooding. Plum Creek remained
        above flood stage for approximately 2 1/2 hours...with
        moderate flooding along and east of the creek. Near
        Cherry Creek Dam...2.02 inches of rain fell.  At
        Denver International Airport 0.56 inches of rainfall
        was recorded.  A peak wind gust to 34 mph was also
        observed from the north.
11-14 In 1999...damage from several hailstorms...from the 11th to
        the 14th...in and near metro Denver totaled 35 million
        dollars.  About 17.5 million dollars was from automobile
        claims with another 17.5 million in homeowner claims. The
        areas hardest hit by the storms included Castle Rock...
        Commerce City...Evergreen...and Golden.

$$