Public Information Statement
Issued by NWS Denver/Boulder, CO

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Public Information Statement
National Weather Service Denver/Boulder CO
259 AM MDT THU SEP 8 2016

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

5-9   In 1988...layers of smoke aloft from large forest fires in
        Yellowstone National Park completely obliterated the sun
        at times.  At Stapleton International Airport...surface
        visibility was reduced at times to 5 and 6 miles in smoke.
5-13  In 2010...the Fourmile Canyon Wildfire...northwest of Boulder...
        broke out on the morning of the 5th.  It originated from
        an unattended fire pit at a local residence. The wildfire
        quickly consumed 5 1/2 square miles or 3500 acres the
        first day...and forced the evacuation of over three
        thousand residents.  Erratic 45-mph gusts sent the fire in
        two directions at times. Very dry weather conditions
        preceded the fire. The combination of strong winds...low
        relative humidities and dry fuels allowed the wildfire
        spread rapidly through the steep...heavily forested terrain.
        The flames were reportedly 20 to 50 feet in length.  Towns
        within the burn area included Salina...Wallstreet and Gold
        Hill. The dry conditions coupled with gusty winds ranging
        from 45 to 64 mph persisted for several more days. Fire
        managers used as many as 700 firefighters and support
        personnel from 35 agencies and seven air tankers to battle
        the wildfire.  A total of 6181 square acres or
        approximately 10 square miles were burned.  The Fourmile
        Canyon Wildfire was the most destructive fire in Colorado
        history in terms of the damage to personal property.  It
        destroyed 171 homes with an estimated cost of 217 million
7-8   In 1884...a windstorm from mid-afternoon until the early
        morning hours of the 8th produced south winds sustained
        to 48 mph.  The strong winds toppled several trees in
        the city.
      In 1892...there was a trace of rainfall each day.  This
        together with a trace of rain on both the 2nd and 3rd was
        the only rainfall of the month...making the month the driest
        on record.  The record was equaled in 1944.
8     In 1886...the last thunderstorm of the season pelted the
        city with hail the size of beans and dropped 0.81 inch of
      In 1962...the earliest first freeze of the season occurred.
        The temperature dipped to a low of 31 degrees.
      In 1973...hail up to 1 1/2 inches in diameter fell northeast
        of Boulder.  A tornado was reported by a pilot east of
        Parker.  No damage was reported.

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