Public Information Statement
Issued by NWS Denver/Boulder, CO

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NOUS45 KBOU 250859

Public Information Statement
National Weather Service Denver/Boulder CO
259 AM MDT MON SEP 25 2017

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

25    In 1873...a fire was sighted in the woods near Platte Canyon...
        probably caused by high winds blowing sparks among the
      In apparent cold front produced northeast sustained
        winds to 40 mph with gusts to 48 mph.
      In 1910...a thunderstorm produced sustained north winds to
        51 mph.  This was the highest recorded wind speed in the
        city in September at the time.
      In 1936...a vigorous cold front produced a deadly dust storm
        in the city.  North winds sustained to 36 mph with gusts
        to 38 mph produced much blowing dense dust...greatly
        restricting the visibility.  The temperature plunged from
        a high of 84 degrees to a low of 38 degrees by midnight.
        The weather observer described the event with the following.
        "At 6:00 PM the temperature was 82 degrees and the wind
        velocity was only 4 mph; but with the wind shifting to the
        north and the barometer rising quite rapidly...the temperature
        fell sharply.  By 6:30 PM...the wind velocity increased
        rapidly and by 7:00 PM had reached a maximum sustained
        velocity of 36 mph...bringing with it clouds of dust which
        had been picked up by gale force winds in southern Wyoming
        and northern Colorado...covering the city.  The visibility
        was generally reduced to about 1/4 mile; however...the
        whirling of the dust down the streets and alleys...the
        visibility was at times somewhat less.  Airplanes were
        grounded...traffic was halted at times...and homes filled
        with dust.  The strong winds damaged electric power and
        telephone lines...leaving homes in darkness for a few hours
        in the city and for 18 hours in suburban towns and putting
        2500 telephones out of service because of broken lines.  An
        electric lineman was killed while repairing damage by the
        high winds.  The dust storm was followed by rain that began
        falling at 10:55 PM...which turned to snow during the early
        morning hours of the 26th.  A major snow storm followed on
        the 27th through the 29th."
      In 1999...high winds developed in the foothills of Boulder
        County.  Winds gusted to 90 mph at Wondervu.
25-26 In 1908...apparent post-frontal rain changed to snow overnight
        and totaled 6.5 inches in downtown Denver.  This was the
        first snow of the season.  Precipitation totaled 0.76 inch.
        North winds were sustained to 39 mph on the 25th.
25-27 In early season snowstorm brought heavy snow
        to the Front Range eastern foothills.  Snowfall totals
        included:  8 to 12 inches around Conifer...7 inches on
        Floyd Hill...and 6 inches at both Bailey and Chief Hosa.
        Snowfall totaled only 4.7 inches at the site of the
        former Stapleton International Airport.  This was the
        first measurable snow of the season.  After the passage
        of a strong cold front...north winds gusted to 38 mph at
        Denver International Airport on the 25th.

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