Public Information Statement
Issued by NWS Denver/Boulder, CO

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NOUS45 KBOU 130859

Public Information Statement
National Weather Service Denver/Boulder CO
259 AM MDT SAT MAY 13 2017

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

12-13 In 1907...the temperature warmed to a high of 73 degrees on
        the 12th...before a cold front produced a thunderstorm...
        northeast winds sustained to 40 mph...and rain changing to
        light snow overnight.  Snowfall totaled only 2 inches...but
        the high temperature on the 13th was only 39 degrees.
      In 1961...a storm that covered metro Denver with rain and snow
        started as thunderstorms on the evening of the 12th.  Hail
        to 1 1/2 inches in diameter was reported 10 miles northwest
        of Stapleton Airport.  Rain continued overnight and changed
        to snow on the 13th.  Snowfall totaled 6.4 inches and
        precipitation (rain and melted snow) 1.96 inches at
        Stapleton Airport where north winds gusted to 39 mph.  The
        rain and heavy wet snow caused icing damage to utility
        lines.  Heavy snow occurred in the foothills.
      In 1982...a major storm dumped 1.50 to 3.50 inches of rain
        across northeast Colorado and deposited prodigious amounts
        of snow in the foothills.  Coal Creek Canyon southwest of
        Boulder was buried under 46 inches of snow with 39 inches
        at Nederland.  The heavy wet snow downed many powerlines in
        the foothills.  In Thornton...the roof of a school was
        damaged by water from the heavy rain.  At Stapleton
        International Airport...1.49 inches of rain were measured
        over the two day period.  The heavy rain ended a severe and
        prolonged drought.
      In 2004...a winter storm produced heavy snow in excess of a
        foot in the foothills above 6 thousand feet while heavy
        rain fell across the city.  The heaviest snow occurred in
        the high country of Boulder County.  Storm total snowfall
        was 14.5 inches near Jamestown.  Rainfall totaled 0.81 inch
        at Denver International Airport with 0.94 inch recorded at
        Denver Stapleton.  A trace of snow was recorded at both
        locations.  East winds gusted to 24 mph at Denver
        International Airport on the 12th.
13    In 1905...a thunderstorm produced hail during the late
        afternoon.  Precipitation totaled 0.57 inch.
13-14 In 1912...heavy snowfall totaled 12.4 inches over the city.
        Most of the snow...9.9 inches...fell on the 13th...which was
        the greatest 24 hour snowfall in May at the time.  This
        was the last snowfall of the season.  The low temperature
        dipped to 27 degrees on the morning of the 14th.
      In 1989...a spring storm brought heavy rain and snow to the
        foothills.  Metro Denver was soaked with 1 to 2 inches
        of rain.  Rainfall totaled 1.26 inches at Stapleton
        International Airport.  In the foothills...Echo Lake
        received 20 inches of snow.  A 30-ton boulder slid onto
        I-70 east of the Eisenhower Tunnel...closing the freeway
        for 2 hours.

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