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 SUN SEP 10 2017

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

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
9-10  In 1933...heavy rain over the Cherry Creek...Plum Creek...Big
        Dry Creek...and Little Dry Creek watersheds caused flooding
        on the South Platte River in Denver overnight.  Nearly an
        inch of rain...0.98 inch...fell in the city.
      In 1944...a trace of rain fell on each day.  This together
        with a trace of rain on the 4th and 30th was the only
        precipitation for the month.  The total of a trace of
        precipitation for the month equaled the driest September
        on record first set in 1892.
      In 1994...unusually very warm weather resulted in three
        temperature records being equaled.  High temperatures
        of 94 degrees on the 9th and 93 degrees on the 10th
        equaled record maximums for the dates.  Low temperature
        of 63 degrees on the 9th equaled the record high minimum
        for the date.
10    In ball size hail was reported just east of Parker.
      In 1989...3/4 inch diameter hail fell in Littleton.  Heavy rain
        produced local flooding in Lakewood.  The heavy rain caused
        the wall of a house to collapse.
      In 1993...thunderstorm winds downed power lines...which caused a
        power outage in Castle Rock.

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