Public Information Statement
Issued by NWS Denver/Boulder, CO

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NOUS45 KBOU 060859

Public Information Statement
National Weather Service Denver/Boulder CO
259 AM MDT WED SEP 6 2017

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

1-7   In 1978...the temperature reached 90 degrees or more on seven
        consecutive days with the highest temperature...94 degrees...
        recorded on both the 4th and 6th.
3-6   In 1909...rainfall for the 4 days accumulated to 3.97 inches
        in Boulder...while in Denver rainfall totaled 2.45 inches
        on the 4th...5th...and 6th.
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
6     In 1940...a thunderstorm pelted the city with small hail.
        The storm produced some lightning damage.  One woman was
        stunned by a bolt which struck near her.  Heavy rain from
        the storm raised the level of Cherry Creek by more than
        3 feet during the height of the storm.  Rainfall downtown
        was only 0.26 inch.
      In 1988...strong winds blew down two houses that were under
        construction in Castle Rock.  Northwest winds gusted to 44
        mph at Stapleton International Airport.
      In 1993...a man was struck and killed by lightning while
        standing outside his home in unincorporated Arapahoe County
        11 miles south of Denver.  Lightning also struck a cabin in
        Marshdale...20 miles southwest of Denver...which started a
        fire and damaged one room and a portion of the roof.
      In 1995...hail as large as 3/4 inch in diameter fell in Coal
        Creek Canyon in northern Jefferson County.
      In 2001...a thunderstorm dropped 3/4 inch diameter hail in
        Aurora near Cherry Creek.

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