Public Information Statement
Issued by NWS Denver/Boulder, CO

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NOUS45 KBOU 100859

Public Information Statement
National Weather Service Denver/Boulder CO
259 AM MDT MON OCT 10 2016

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

9-10  In 2005...a major winter storm brought heavy...wet snowfall
        to the Front Range Mountains...eastern foothills...portions
        of metro Denver...and the Palmer Divide.  Snow accumulations
        ranged from 8 to 26 inches with drifts from 3 to 4 feet
        in places.  The heaviest snow occurred to the east and
        southeast of the city...closing most major highways in
        that area...including I-70 from Denver to Limon.  The Red
        Cross opened four shelters for people who were stranded
        along I-70 in eastern Colorado.  Since many trees had not
        yet shed their leaves...the storm caused significant tree
        damage.  One woman in Denver was killed when a tree branch...
        8 to 10 inches in diameter...snapped under the weight of the
        heavy...wet snow and struck her as she was shoveling her
        driveway.  Xcel Energy reported power outages to about 35
        thousand customers.  Several incoming flights were delayed
        at Denver International Airport.  Snow totals included:  16
        inches in the foothills near Boulder...12 inches at Genesee
        and near Golden...22 inches near Watkins...19 inches near
        Bennett...17 inches southeast of Aurora...14 inches near
        Parker...13 inches near Castle Rock...12 inches in Centennial...
        11 inches in Parker...and 10 inches at Denver International
        Airport and in Littleton.  While many areas of metro Denver
        received heavy snow...others experienced almost entirely rain.
        This included west and northwest metro Denver...Boulder...and
        Longmont.  Rainfall amounts were significant as storm totals
        ranged between 1.50 and 2.50 inches.  The steady rainfall
        triggered 3 rockslides in foothills canyons.  Two of the
        slides occurred on State Highway 119 in Boulder Canyon and
        the longest slide...7 feet in length...on State Highway 74 in
        Bear Creek Canyon at Idledale.  North winds were sustained
        to around 23 mph with gusts to 31 mph at Denver International
        Airport on the 9th.  The high temperature of only 34 degrees
        on the 10th was a record low maximum for the date.  The low
        temperature on both days was 32 degrees.
10    In evening thunderstorm produced east winds to
        43 mph with gusts to 48 mph.
      In 1949...strong winds believed to be the worst in Boulder`s
        history at the time caused over 100 thousand dollars
        damage in the city.  Peak winds were estimated to 85 mph
        at Valmont...just east of Boulder.  High winds also
        occurred over most of metro Denver and caused damage to
        trees...window glass...and utility lines.  The damage was
        most pronounced over the northwest metro area...including
        north Denver and Lakewood.  Falling tree branches caused
        damage to parked autos and houses.  Wind gusts to 70 mph
        were recorded at Stapleton Airport.
      In 1964...lightning struck and killed a 13-year-old boy...while
        he was riding his bicycle along a tree-lined residential
        street in south Denver.  Apparent microburst winds gusted
        to 54 mph at Stapleton International Airport.
10-11 In 1986...the first significant snowstorm of the season
        produced 2 to 5 inches of snow over metro Denver with 5
        to 10 inches in the foothills west of Denver.  Wondervu
        recorded the most snow from the storm...13 inches.  The
        heavy wet snow caused numerous power outages.  The storm
        was accompanied by strong north winds with gusts to 41 mph
        recorded on the 10th.  The first snowfall of the season
        totaled 3.1 inches at Stapleton International Airport with
        only one inch on the ground due to melting.  The strong
        cold front accompanying the storm cooled the temperature
        from a high of 73 degrees on the 10th to a high of only
        33 degrees on the 11th...which was a record low maximum
        for the date.
10-12 In 1969...the second heavy snowstorm in less than a week
        dumped nearly a foot of snow across metro Denver and
        plunged the area into extremely cold temperatures for so
        early in the season.  Snowfall totaled 11.0 inches at
        Stapleton International Airport.  North winds gusting to
        26 mph produced drifts up to 2 feet deep.  Temperatures
        dipped from a high of 52 degrees on the 10th to a record
        low for the date of 10 degrees on the 12th.  There was
        additional damage to trees and power and telephone lines
        from heavy snow accumulations and icing.  Travel was
        restricted or blocked by drifting snow in both the
        mountains and on the plains east of Denver.

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