Public Information Statement
Issued by NWS Denver/Boulder, CO

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COZ030>051-202300-

Public Information Statement
National Weather Service Denver/Boulder CO
645 PM MST SAT NOV 19 2016

...This week in metro Denver weather history...

18-20 In 1930...a major storm dumped a total of 13.6 inches of
        snowfall over downtown Denver.  Most of the snow...9.4
        inches...fell on the 19th when north winds were sustained
        to 23 mph.  This was the only measurable snow of the
        month.  Temperatures hovered in the 20`s and lower 30`s.
      In 1956...an intense winter storm dumped 12.8 inches of
        snowfall on metro Denver.  Strong north-northeast winds
        gusting to 33 mph at Stapleton Airport frequently reduced
        the visibility to 1/2 mile in snow and blowing snow on the
        19th.  Most of the snowfall...10.7 inches...occurred on the
        19th.
19-21 In 1979...a heavy snowstorm buried most of Colorado under at
        least a foot of snow.  Snowfall at Stapleton International
        Airport totaled 17.7 inches...the greatest snow depth since
        1946.  Winds to 60 mph produced 5-foot drifts paralyzing
        the city as temperatures hovered in the 20`s.  While small
        airports closed...Stapleton remained open...but with long
        delays that snarled Thanksgiving holiday traffic.  Schools
        and businesses closed and postal deliveries were delayed.
        Almost all major highways leading out of Denver were closed
        to traffic for periods of time on the 20th and 21st.  Most
        of the snow...13.5 inches...fell on the 20th.  At Stapleton
        International Airport...north winds gusted to 35 mph on the
        20th and to 38 mph on the 21st.
20    In 1871...the first official weather observation in Denver...
        was taken by Henry Fenton...Observer Sergeant of the United
        States Army Signal Service at 5:43 AM.  The office was
        located on the 2nd floor of a building at the corner of
        Larimer and G Streets...now 16th Street.  The daily weather
        journal hand written entry for the day follows:  "Snow
        fell heavily during past night.  At 5:43 AM it was snowing
        light and continued until 8 AM.  Wind during snow storm
        gentle and a little west of south...and continued there
        during the remainder of the day.  Sky clear after 8 AM.
        Very cold weather prevailed all day and night.  Thermometer
        at 9:43 PM 14 degrees.  Rain gauge and self-registering
        thermometer not in position owing to severe storm last
        week.  Barometer falling during the morning and rising
        rapidly at night."
      In 1894...northwest chinook winds sustained to 40 mph with
        gusts to 45 mph warmed the temperature to a high of 58
        degrees in the city.
      In 1909...steady and very strong winds in Boulder caused
        3 thousand dollars in damage.
      In 1915...post-frontal northeast winds sustained to 40 mph
        with gusts as high as 42 mph produced only a trace of
        snow.  It was windy most of the day.
      In 1923...west winds were sustained to 42 mph with gusts
        to 44 mph before daybreak.  The strong winds persisted
        in the city for only about 3 hours.
      In 1993...a wind gust to 72 mph was recorded at Table Mesa in
        southwest Boulder.
      In 1994...winds gusted to 77 mph atop Squaw Mountain west
        of Denver.  West winds gusted to 40 mph at Stapleton
        International Airport.
20-21 In 1898...snowfall totaled 4.0 inches in downtown Denver.
        Northeast winds were sustained to 48 mph with gusts as
        high as 60 mph behind an apparent cold front on the 20th...
        when temperatures plunged from a high of 66 degrees to a
        low of 9 degrees.  On the 21st the high was only 24 degrees
        and the low was 2 degrees.
      In 1970...a wind gust to 94 mph was recorded at Gold Hill in
        the foothills west of Boulder.  Strong winds also swept
        across metro Denver.  Wind gusts reached 59 mph in downtown
        Boulder...while at Stapleton International Airport west-
        northwest winds gusted to 43 mph on the 21st.  Damage was
        minor.
      In 1992...a large Canadian air mass moved into the state at
        the same time an upper level storm system approached from
        the west.  The combination of cold air at the surface and
        very moist air aloft produced heavy snow across the entire
        state.  Snowfall totaled 6.3 inches at Stapleton
        International Airport...where north winds gusted to 23 mph
        on the 20th.  Snow was heavier in the foothills...with 14
        inches at Wondervu...13 inches at Aspen Springs...Conifer...
        Boulder...and Gross Reservoir...8 inches at Rollinsville...
        and 10 inches at Golden Gate Canyon and Morrison.
      In 2007...a storm system brought moderate to heavy snowfall
        to portions of the Urban Corridor.  Storm totals included:
        7 inches...3 miles south-southeast of Fort Collins...with 6
        inches in Boulder and at Horsetooth Inlet Bay.  Elsewhere...
        storm totals ranged from 2 to 5 inches.  Snowfall
        totaled 2.0 inches at the site of the former Stapleton
        International Airport.
21    In 1891...northwest winds were sustained to 50 mph with gusts
        to 60 mph.
      In 1899...a trace of snow fell in the city.  This...together
        with a trace of precipitation on the 16th and 23rd...was the
        only precipitation of the month...making the month the driest
        on record.  The record was equaled in November of 1901 and
        1949.  This trace of snow along with a trace of snow on the
        23rd was the only snow of the month...ranking the month the
        2nd least snowiest on record.  This record was equaled in
        November of 1884...1901...1905...1917...and 1939.
      In 1900...west winds were sustained to 46 mph with gusts to
        54 mph.  The chinook winds warmed the temperature to a
        high of 64 degrees.
      In 1934...the latest date for the first measurable snow of the
        season occurred.  This was not the first snow of the season...
        because traces of snow had fallen earlier in September.
        Snowfall totaled only 1.0 inch over downtown Denver.
      In 1962...strong west-northwest chinook winds gusted to
        53 mph at Stapleton Airport.
      In 1998...an intense mountain wave allowed for high winds
        to develop in the foothills of Boulder County.  Wind
        gusts as high as 77 mph were measured 3 miles east-
        northeast of Nederland.
21-22 In 1905...a trace of snow fell on both days in downtown
        Denver.  This was the only snow of the month...ranking
        the month along with other Novembers...the 2nd least
        snowiest on record.
      In 1999...the first significant snowfall of the season struck
        metro Denver.  Snowfall totals included:  16 inches near
        Bailey; 13 inches near Evergreen; 12 inches at North Turkey
        Creek...Genesee...near Morrison...and near Sedalia; 11 inches
        near Conifer and in Evergreen; 10 inches in Louisville;
        9 inches in Brighton...Broomfield...and Denver; and 8 inches
        at Arvada...Castle Rock...and Eldorado Springs.  Snowfall
        totaled 8.4 inches at the site of the former Stapleton
        International Airport.
      In 2003...heavy snow fell in and near the foothills of Boulder
        County.  Snowfall totaled 10.5 inches in Eldorado Springs.
        Across the city...snowfall was lighter with 2.8 inches
        measured at the site of the former Stapleton International
        Airport on the 22nd.  North winds gusted to 32 mph at Denver
        International Airport on the 22nd.
21-23 In 1918...post-frontal snowfall totaled 5.9 inches in downtown
        Denver.  Most of the snow...5.3 inches...fell on the 22nd.
        North winds were sustained to 20 mph on the 21st.
      In 1931...a major storm dumped a total of 13.2 inches of
        snowfall over downtown Denver.  Most of the snow...11.4
        inches...fell on the 21st.  A very cold air mass settled
        over the city after the heavy snow on the 21st.  After a
        low temperature of zero...the temperature climbed to a high
        of only 5 degrees on the 22nd...a record low maximum for the
        date.
21-25 In 1952...snowfall of 6.2 inches was measured at Stapleton
        Airport where northeast winds gusted to 17 mph on the
        21st.
22    In 1977...101 mph winds were measured in southwest Boulder.
        The side of a garage was blown down.  West winds gusted
        to only 33 mph at Stapleton International Airport.
      In 1981...high winds occurred in the foothills.  A peak gust
        to 75 mph was reported at Wondervu.  West winds gusted to
        23 mph at Stapleton International Airport.
      In 1988...a wind gust to 88 mph was measured at Rollinsville.
      In 1990...strong west to northwest winds...on the coat tails
        of a mountain snow storm the day before...lashed out at
        portions of the eastern foothills with 60 to 95 mph wind
        gusts.  The strong winds spread over all of metro Denver.
        A west wind gust to 49 mph was recorded at Stapleton
        International Airport.
22-23 In 1953...strong winds raked Boulder causing 18 thousand
        dollars in damage.  Wind gusts to 80 mph were recorded at
        Valmont and estimated to 80 mph at the Boulder airport.
23    In 1899...a trace of snow fell in the city.  This...together
        with a trace of precipitation on the 16th and 21st...was the
        only precipitation of the month...making the month the driest
        on record.  The record was equaled in November of 1901 and
        1949.  This trace of snow along with a trace of snow on the
        21st was the only snow of the month...ranking the month the
        2nd least snowiest on record.  This record was equaled in
        November of 1884...1901...1905...1917...and 1939.
      In 1901...northwest winds were sustained to 45 mph with gusts
        to 53 mph.  The chinook winds warmed the temperature to a
        high of 70 degrees.
      In 1910...west winds were sustained to 42 mph.  The chinook
        winds warmed the temperature to a high of 67 degrees.
      In 1959...west-northwest winds gusted to 56 mph...briefly
        reducing the visibility to 3 miles in blowing dust at
        Stapleton Airport.
      In 1998...winds...estimated as high as 58 mph...caused
        several wood trusses installed in a police station
        under construction in Castle Rock to collapse.  A
        construction worker on the roof received minor injuries
        when he was struck by one of the trusses.  Southeast
        winds gusted to 38 mph at Denver International Airport.
23-24 In 1992...a pre-Thanksgiving blizzard belted metro Denver.
        Gusty north to northeast winds at 30 to 40 mph caused
        near-whiteout conditions as visibilities were often below
        1/4 mile.  The strong winds drove snow into drifts of more
        than 4 feet.  Hundreds of holiday travelers were stranded
        when airlines canceled flights at Stapleton International
        Airport where snowfall totaled 7.6 inches and north winds
        gusted to 37 mph.  Blizzard conditions began around mid-
        morning on the 23rd and ended by mid-afternoon...but heavy
        snow fell through the night.  Snowfall totaled:  12 inches
        at Conifer...Morrison...and Wheat Ridge; 19 inches at
        Littleton; 16 inches at Castle Rock; 9 inches in Brighton;
        8 inches in Aurora; and 6 inches in Parker.
      In 1993...a moist upper level disturbance dumped heavy snow
        over most of Colorado.  Snowfall amounts averaged 5 to 8
        inches across metro Denver.  Snowfall totaled 4.6 inches
        at Stapleton International Airport where northeast winds
        gusted to only 20 mph on the 23rd.  The very cold air
        mass caused the temperature to dip to a record low of 8
        degrees below zero on the 24th.  The temperature that day
        climbed to only 9 degrees...also setting a record low
        maximum for the date.
24    In 1915...chinook winds from the southwest sustained to 40 mph
        with gusts to 46 mph warmed the temperature to a high of
        61 degrees.  It was windy most of the day.
      In 1949...the low temperature dipped to 56 degrees...the
        all-time record highest minimum temperature ever recorded
        during the month of November.
      In 1960...violent wind gusts caused some damage in Boulder.
        West winds gusted to only 22 mph at Stapleton Airport.
      In 1980...a snow storm brought 3 to 6 inches of snow across
        metro Denver.  At Stapleton International Airport...only
        2.1 inches of snow fell.
      In 1989...high winds were recorded in Boulder with a gust to
        64 mph.  West winds gusted to only 24 mph at Stapleton
        International Airport.
24-25 In 1908...heavy snowfall totaled 7.0 inches over downtown
        Denver overnight.  North winds were sustained to 15 mph.
      In 1930 strong winds raked the Front Range eastern foothills.
        Winds gusted to 40 mph at Valmont just east of Boulder
        where minor damage occurred.
      In 1970...strong chinook winds warmed Boulder.  At the
        National Center for Atmospheric Research in Boulder...wind
        gusts reached 97 mph...while in downtown Boulder winds peaked
        to 69 mph.  Some minor damage occurred.  Northwest winds
        gusted to 39 mph at Stapleton International Airport...and the
        high temperature warmed to 76 degrees on the 25th...setting a
        new record maximum for the date.
25    In 1877...northwest winds were sustained to 50 mph.
      In 1902...northwest winds were sustained to 45 mph with gusts
        to 48 mph.  The strong apparent bora winds warmed the
        temperature to a high of only 45 degrees.
      In 1943...snowfall of 4.0 inches was the only measurable snow
        of the month.  North winds were sustained to 17 mph.
      In 1958...strong pre-frontal chinook winds struck Boulder and
        the eastern foothills.  A wind gust to 100 mph was recorded
        northwest of Denver.  A gust to 88 mph occurred at Rocky
        Flats south of Boulder.  The windstorm caused considerable
        structural damage to residential sections of north metro
        Denver.
      In 1959...strong winds raked the eastern foothills including
        Boulder and Eldorado Springs.  Wind gusts to 100 mph were
        estimated at the Matterhorn Restaurant located atop Rocky
        Flats south of Boulder.
      In 1993...a wind gust to 99 mph was recorded atop Squaw
        Mountain near Idaho Springs.
      In 1998...strong winds developed over portions of the Front
        Range foothills for a brief time following the passage
        of a weak upper level disturbance.  A wind gust to 71 mph
        was measured atop Blue Mountain near Coal Creek Canyon.
      In 1999...strong chinook winds developed in and near the
        foothills.  Peak wind reports included 100 mph at the
        Eldora Ski Resort and 77 mph at the National Center for
        Atmospheric Research Mesa Lab above Boulder.  West winds
        gusted to 38 mph at Denver International Airport.
      In 2010...high winds developed in the foothills of Boulder
        County. A gust to 75 mph occurred 5 miles northwest of
        Boulder with a gust to 72 mph at the National Center for
        Atmospherice Research Mesa Lab above Boulder.  West winds
        gusted to 24 mph at Denver International Airport.
25-26 In 1887...snowfall totaled 2.9 inches in the city.  This was
        the only measurable snow of the month.  Northeast winds
        were sustained to 18 mph on the 26th when the temperature
        dipped to 12 degrees below zero.
      In 1959...a sharp cold front produced a northwest wind gust
        to 51 mph...followed by snow and falling temperatures from
        a high of 60 degrees to a low of 23 degrees at midnight
        on the 25th.  Snowfall totaled 4.4 inches at Stapleton
        Airport before ending early on the 26th.
      In 1972...winds gusted to 104 mph at the Rocky Flats plant
        south of Boulder.  Gusts to 70 mph were recorded at the
        National Bureau of Standards in Boulder...while in downtown
        Boulder winds peaked to 68 mph.  Some damage was reported.
        Northwest winds gusted to 47 mph at Stapleton International
        Airport on the 26th.
      In 1984...blowing snow closed I-70 east of Denver...stranding
        over a thousand travelers in Limon.  Denver received only
        2.3 inches of snowfall.  North winds gusted to 31 mph at
        Stapleton International Airport.
      In 1999...strong chinook winds redeveloped overnight in and
        near the foothills.  Peak wind gusts included 72 mph atop
        Blue Mountain near Wondervu and at the National Center for
        Atmospheric Research Mesa Lab above Boulder.
25-27 In 1978...heavy snowfall of 6.0 inches was measured at
        Stapleton International Airport where north winds gusted
        to 20 mph.  Most of the snow...4.8 inches...fell on the 25th.
        The greatest amount of snow measured on the ground was
        5 inches due to settling and melting.
25-28 In 1952...the average coldest 4-day period in November in the
        previous 81 years of record occurred.  Maximum temperatures
        of 19...15...21...and 25 degrees were recorded.  Minimum
        temperatures were below zero each day with readings of
        7 below...6 below...5 below...and 6 below.
25-29 In 1985...dense fog with visibilities as low as 1/8 mile
        occurred on five consecutive days at Stapleton International
        Airport.  The fog was at times accompanied by light snow...
        light freezing drizzle...or ice crystals.  Fog occurred all
        day on both the 26th and 29th.
26    In 1873...west winds increased to a violent gale at 3:00 AM
        and reached a maximum sustained velocity of 56 mph at
        3:15 AM.  The winds continued with a velocity of not
        less than 40 mph until 6:00 AM.  Winds continued brisk for
        the remainder of the day.  The strong winds caused damage
        to houses and buildings in the city.  Temperatures were in
        the 50`s through early afternoon with a recorded high of
        59 degrees.  Winds also blew strongly in Boulder and caused
        300 dollars in damage.
      In 1911...post-frontal northeast winds were sustained to
        43 mph with gusts as high as 52 mph.  Snowfall was
        only 0.5 inch.
      In 1965...post-frontal snowfall totaled 5.5 inches at
        Stapleton International Airport where strong west
        winds gusted to 39 mph during the afternoon.
      In 1976...2 to 4 inches of snow with an Arctic cold front
        produced near zero visibility at times in blowing snow...
        causing multiple automobile accidents in metro Denver.
        Snowfall totaled 3.5 inches at Stapleton International
        Airport where north winds gusted to 39 mph.  Temperatures
        hovered in the teens and lower 20`s most of the day
        dipping to 7 degrees by midnight.
      In 1977 a strong wind storm raked metro Denver.  High winds
        blew windows from office towers in Denver and Boulder.
        Thirteen people were injured in Boulder due to flying
        debris.  Wind gusts to 119 mph were clocked on Davidson
        Mesa southeast of Boulder...with 109 mph in downtown
        Boulder.  Six airplanes were damaged at Jefferson County
        Airport near Broomfield.  Winds to 90 mph were reported
        in Lakewood.   Glass was blown out of several vehicles in
        Wheat Ridge...and roofs were blown off 4 houses in Arvada.
        Several houses under construction collapsed across metro
        Denver.  Winds to 75 mph were reported at the Denver
        Federal Center with 90 mph at Rocky Flats.  West winds
        gusted to 51 mph at Stapleton International Airport.
        Total insured damage from the wind storm was 2.2 million
        dollars.
      In 1987...a Thanksgiving snowstorm brought 5 inches of snow
        to metro Denver and 6 inches to the foothills.  At
        Stapleton International Airport...snowfall totaled 5.0
        inches...north winds gusted to 22 mph...and temperatures
        hovered in the upper 20`s most of the day.
      In 1991...strong winds were recorded in and near the eastern
        foothills.  Winds at Rollinsville were clocked to 70 mph
        with 45 mph recorded in Boulder and 51 mph at the U.S.
        Atomic Energy Commission Rocky Flats plant.  West winds
        gusted to only 28 mph at Stapleton International Airport.
26-27 In 1876...heavy snowfall totaled 9.0 inches over the city
        from 5:00 PM on the 26th through 5:00 P.M. on the 27th.
        Precipitation was 0.30 inch on the 25th and 0.60 inch
        on the 27th.
      In 1919...an incursion of cold Arctic air produced snowfall
        of 4.6 inches over downtown Denver.  Temperatures dipped
        to 5 degrees below zero on the evening of the 26th and
        recovered to a high of only 1 degree below zero on the
        27th...the all-time record low maximum for the month of
        November and the record for the date.  Northwest winds
        were sustained to 25 mph with gusts to 26 mph on the 26th.
      In 1923...snowfall of 2.0 inches was the only snow of the
        month.  North winds were sustained to 22 mph on the 26th.
      In 1972...heavy snowfall totaled 7.5 inches at Stapleton
        International Airport where north winds gusted to only
        18 mph on the 27th.
      In 1983...a Thanksgiving blizzard dumped 21.5 inches of
        snowfall in 37 hours with a maximum of 18 inches on the
        ground at Stapleton International Airport.  The storm
        produced howling winds...which paralyzed Thanksgiving
        weekend transportation across all of eastern Colorado.
        On the 27th...Stapleton International Airport closed...
        opening 24 hours later.  Interstate highways were closed
        in all directions...but west...from Denver.  At Stapleton
        International Airport...north winds gusted to 36 mph on the
        26th and to 29 mph on the 27th.  However...most wind speeds
        across metro Denver were 15 to 30 mph.  Temperatures
        hovered in the teens and lower 20`s.  Many stores and
        businesses closed.  Several high school football games
        were postponed.  Across metro Denver...snow depth varied
        from 15 inches in Commerce City to 28 inches near
        Chatfield Reservoir.  Snow removal in Denver was
        estimated at 1.5 million dollars.  Following the storm...
        an inch or more of snow remained on the ground for 63
        consecutive days through January 27...1984.  This is the
        longest period of continuous snow cover ever recorded in
        Denver.
      In 1990...an early winter storm deposited 2 to 8 inches of
        wet snow across metro Denver.  Snowfall totaled 3.4 inches
        at Stapleton International Airport where northeast winds
        gusted to 30 mph on the 26th.
      In 1993...strong winds swept off the foothills across metro
        Denver.  Sustained winds of 30 to 50 mph were common across
        the area.  Wind gusts to 67 mph were recorded atop Squaw
        Mountain near Idaho Springs.  West winds gusted to 36 mph
        at Stapleton International Airport on the 26th.  The strong
        winds produced some blowing snow...reducing the visibility
        to less than one mile at times.
      In 1995...snowfall totaled 3.7 inches at the former Stapleton
        International Airport site.  The foothills west of Denver
        received 4 to 7 inches of snow.  North-northeast winds
        gusted to 34 mph at Denver International Airport on the
        26th.

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