Public Information Statement
Issued by NWS Denver/Boulder, CO

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COZ030>051-192300-

Public Information Statement
National Weather Service Denver/Boulder CO
645 PM MST SAT FEB 18 2017

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

17-19 In 2006...a cold spell resulted in 4 temperature records.
        Low temperatures of 10 degrees below zero on the 17th...
        13 degrees below zero on the 18th...and 4 degrees below
        zero on the 19th were record minimums for those dates.
        The high temperature of only 7 degrees on the 18th was
        a record low maximum for the date.  Light snow fell on
        the 17th...but totaled less than half an inch at Denver
        International Airport.
18-19 In 1954...a vigorous cold front produced north winds gusting
        to 56 mph and a trace of snowfall at Stapleton Airport on
        the 18th.  Strong and gusty winds to 55 mph persisted
        through the next day and caused some blowing dust.
      In 1955...a storm dumped heavy snow across metro Denver.  At
        Stapleton Airport where north winds sustained to 28 mph
        produced some blowing snow...snowfall totaled 8.8 inches.
18-20 In 1913...post-frontal snowfall totaled 6.9 inches in downtown
        Denver over the 3 days.  Most of the snow fell on the 19th.
        Northeast winds were sustained to 21 mph with a measured
        extreme velocity to 24 mph on the 18th.
      In 1924...light snowfall totaled 4.6 inches over the 3 days.
        This was the only measurable snowfall of the month.  High
        temperatures plunged from 45 degrees on the 18th to 17
        degrees on the 20th.  Low temperatures dipped from 31
        degrees on the 18th to only 8 degrees on the 20th.
        Northeast winds were sustained to 24 mph on the 19th.
      In 1953...a major blizzard dumped 10.6 inches of snowfall at
        Stapleton Airport.  Strong north winds at sustained speeds
        of 25 to 35 mph with gusts as high as 44 mph frequently
        reduced visibilities to 1/4 mile in blowing snow during the
        day of the 19th.  The strong winds caused much drifting
        snow...making accurate snowfall measurements almost
        impossible.  Precipitation from the storm totaled 1.13
        inches.  The 1.01 inches of precipitation on the 19th
        was the greatest calendar day and 24 hour precipitation
        ever recorded in the city during the month of February.
      In 1987...large amounts of new snow fell in the Front Range
        foothills.  The foothills received 10 to 20 inches of new
        snow with 4 to 8 inches on the adjacent plains.  On the
        19th...flight delays occurred at Stapleton International
        Airport where snowfall totaled 4.2 inches and east winds
        gusted to only 18 mph on the 19th.  Schools were closed
        in the foothills above Boulder.
19    In 1899...northwest winds sustained to 42 mph with gusts
        to 45 mph warmed the temperature to a high of 56 degrees...
        the highest reading of the month that year.
      In 1980...high winds were reported in Boulder.  Sustained
        speeds of 50 to 60 mph with gusts to 85 mph were measured.
        West winds gusted to 31 mph at Stapleton International
        Airport.
      In 1986...chinook winds continued to buffet the eastern
        foothills.  Winds gusting from 60 to 75 mph were common
        in the foothills.  West winds gusted to 41 mph at Stapleton
        International Airport.
      In 1996...high winds gusting from 70 to 75 mph were reported
        atop Table Mesa near Boulder.  West winds gusted to 44 mph
        at Denver International Airport.
      In 2007...this was the last day of 61 consecutive days with
        snow cover of 1 inch or more in Denver.  This second
        longest period of snow cover on record began with the
        blizzard on December 20-21...2006...when 20.7 inches of snow
        fell at the site of the former Stapleton International
        Airport where official snow measurements were taken.
        Additional snowfall during December...January...and February
        prolonged the event.  Snow depth on the ground was measured
        to the nearest inch once daily at 6:00 AM MST.
19-20 In 1937...post-frontal heavy snowfall totaled 8.4 inches over
        downtown Denver.  Most of the snow...6.6 inches...fell on the
        20th when north winds were sustained to 16 mph with gusts
        to 18 mph.  The temperature dipped to a low of 9 degrees
        on the 20th.
      In 1939...post-frontal snowfall totaled 5.4 inches in the
        city.  The snow covered streets and highways with a coating
        of ice as the temperature fell from 36 degrees at 2:00 PM on
        the 19th to a low of 4 degrees at 3:00 AM on the 20th.  Many
        motorists were marooned for several hours.  Northeast winds
        were sustained to 24 mph on the 19th.
19-21 In 1971...heavy snowfall totaled 9.0 inches at Stapleton
        International Airport where north winds gusted to only
        16 mph.  Most of the snow occurred on the 19th and 20th.
        The 24 hour snowfall of 8.2 inches was the greatest in
        February since 1953.
20    In 1937...6.6 inches of heavy snow fell in downtown Denver.
      In 1976...a cold front produced north wind gusts to 49 mph at
        Stapleton International Airport where snowfall totaled 4.7
        inches.  North winds at sustained speeds of 20 to 30 mph
        with higher gusts persisted throughout the day...producing
        much blowing snow.  East of the city...winds gusting 40 to
        80 mph caused blizzard conditions and produced drifts 2 to
        4 feet high.
      In 1981...a vigorous cold front at midday produced strong
        northeast winds at 20 mph with gusts to 30 mph and billows
        of blowing dust reducing the visibility to 3 miles during
        the afternoon.  Even stronger winds from the north at
        25 mph with gusts to 45 mph in snow and blowing snow
        reduced the visibility to 1/4 mile during the evening.
        Snowfall totaled only 2.6 inches at Stapleton
        International Airport.
20-21 In 1997...heavy snow fell in the foothills.  Snowfall totals
        included:  16 inches at Eldora Ski Area; 15 inches at South
        Turkey Creek; 14 inches at Conifer and Morrison; and 11
        inches at Blackhawk...Evergreen...and Intercanyon.  Only
        1.0 inch of snow fell at the site of the former Stapleton
        International Airport.  Northeast winds gusted to 32 mph
        at Denver International Airport on the 20th.
      In 2014...high winds occurred in and near the foothills of
        Boulder and Jefferson Counties. Peak wind reports included:
        93 mph near Gold Hill; 89 mph at NCAR Mesa Lab; 83 mph at
        the National Wind Technology Center; 76 mph...in Boulder...4
        miles east-northeast of Nederland and the Junction of
        Colorado Highways 72 and 93; and 75 mph at Lyons. Scattered
        electrical outages were reported in Boulder...Denver and
        Littleton...which affected 3400 Xcel Energy customers.  At
        Denver International Airport...a peak wind of 50 mph was
        observed from the west on the 21st.
21    In 1901...northwest winds sustained to 43 mph with gusts
        to 46 mph warmed the temperature to a high of 55 degrees.
      In 1935...strong west to northwest winds sustained to 30 mph
        with gusts to 34 mph produced considerable blowing dust.
        The chinook winds warmed the temperature to a high of 60
        degrees.
      In 1967...west winds gusting to 53 mph produced some blowing
        dust at Stapleton International Airport.  Winds were strong
        and gusty all day.
      In 1988...high winds were reported along the foothills with
        90 mph in east Boulder where the winds knocked out a few
        street and traffic lights.  The strong winds whipped a
        grass and timber fire in Boulder Canyon.  The fire
        threatened some homes for a time...but was extinguished
        before causing any significant property damage.  West
        winds gusting to 35 mph at Stapleton International Airport
        warmed the temperature to a high of 63 degrees.
21-22 In 1909...a major storm dumped 12.9 inches of heavy snowfall
       over the city.  North winds were sustained to 37 mph on the
       22nd.  Temperatures during the storm hovered in the 20`s.
22    In 1893...northwest winds were sustained to 36 mph with
        gusts to 50 mph.
      In 1900...northwest winds sustained to 40 mph with gusts
        to 45 mph warmed the temperature to a high of 61 degrees.
      In 1910...a cold front caused a remarkably sharp drop in
        temperature from 43 degrees at 3:00 AM to only 3 degrees
        at 8:30 AM.  These were the high and low temperatures for
        the day.  Early west winds switched to northeast behind
        the front.
      In 1927...west winds were sustained to 42 mph with a measured
        maximum velocity to 60 mph.
      In 1954...strong and gusty west winds persisted throughout the
        day.  The highest wind gust recorded at Stapleton Airport
        was 58 mph.
      In 1960...snowfall totaled 5.9 inches...producing near-blizzard
        conditions in snow and blowing snow at Stapleton Airport
        where northeast wind gusts to 40 mph reduced visibility
        to 1/2 mile.
      In 1986...high winds occurred in the foothills.  Wind gusts of
        65 to 70 mph were reported at Golden Gate Canyon...and a peak
        gust of 83 mph was recorded at Echo Lake.  Northwest winds
        gusted to only 29 mph at Stapleton International Airport.
      In 1988...a wind gust to 83 mph was recorded in Boulder with
        80 mph clocked at Rollinsville.  Northwest winds gusted to
        45 mph at Stapleton International Airport.
      In 1996...wind gusts to 63 mph were reported in western
        Elbert County.  Southwest winds gusted to 45 mph at
        Denver International Airport.
      In 1999...strong post-frontal...bora winds developed over the
        foothills and spread over the northeast plains.  Peak wind
        gusts included:  87 mph at Golden Gate Canyon; 84 mph at
        Wondervu; 80 mph at the National Center for Atmospheric
        Research Mesa Lab; 75 mph at the Rocky Flats Environmental
        Test Facility; 74 mph at Jefferson County Airport near
        Broomfield; 72 mph at the Gamow Tower on the University of
        Colorado campus in Boulder; and 60 mph at Bennett.  West
        to northwest winds gusted to 44 mph at Denver International
        Airport.
      In 2000...thunder was heard across much of metro Denver.
        Thunderstorms over southwest metro Denver produced 1/4
        to 1/2 inch diameter hail at Pinehurst Country Club.  A
        thunderstorm at Denver International Airport produced
        wind gusts to 34 mph.  This was only the 6th time since
        1891 that thunder had been reported in February.
22-23 In 1985...a snowstorm struck the eastern foothills with 8 to
        15 inches of new snow.  Three to 7 inches of new snow fell
        across metro Denver and parts of I-70 were closed at times.
        Snowfall totaled only 3.3 inches at Stapleton International
        Airport where northeast wind gusts to 29 mph were recorded.
      In 1992...a snow storm dumped heavy snow in the Front Range
        foothills.  Conifer received 12 inches of new snow with 7.5
        inches at Aspen Springs.  Snow only dusted the plains and
        metro Denver...but winds were strong with a gust to 43 mph
        from the north at Stapleton International Airport where
        snowfall totaled only 0.3 inch.  This was the only
        measurable snowfall of the month...equaling the record
        for the least snowiest February first set in 1970.  Rare
        thunder for February accompanied the snow during the early
        morning hours of the 23rd.
      In 1999...strong chinook winds developed on a very localized
        scale overnight in and near the foothills of northern
        Jefferson and southern Boulder counties.  Peak wind reports
        included:  82 mph at the Rocky Flats Environmental Test
        Facility...80 mph at the National Center for Atmospheric
        Research Mesa Lab in Boulder...77 mph near Nederland...and
        75 mph atop the Gamow Tower on the University of Colorado
        campus in Boulder.
      In 2012...a strong upper level jet stream produced high winds
        along the Front Range. In Boulder...the strong winds snapped
        power poles and toppled trees. As a result...about 7
        thousand Xcel Energy customers were without power for
        several hours. The high winds overturned a tractor-trailer
        on Foothills Highway overpass...north of Valmont Road. The
        driver suffered minor injuries. A parked car was totaled
        when it was crushed by a fallen tree near the University of
        Boulder. The strong winds were also responsible for two
        Boulder County wildfires which consumed a total of 65 acres.
        Colorado Department of Transportation officials closed U.S.
        36 at McCaslin Boulevard in both directions after the wind
        caused damage to the pedestrian overpass. Metal siding from
        the overpass fell into highway; fortunately there were no
        injuries. In total...electrical outages affected 46 thousand
        customers along the Front Range. Damage to roofs...siding...
        garage doors and fences was also reported. Peak wind gusts
        included: 93 mph near Lyons; 88 mph at NCAR Mesa Lab; 85
        mph...2 miles southwest of Rocky Flats; 82 mph...5 miles
        northwest of Boulder; 81 mph...2 miles north of Longmont...4
        miles east-northeast of Nederland...the National Wind
        Technology Center and near Wondervu; 80 mph at the junction
        of Highways 72 and 93; 79 mph at the Boulder Municipal
        Airport; 78 mph...6 miles northwest of Boulder; 77 mph at
        Rocky Mountain Municipal Airport; 76 mph atop Berthoud Pass;
        75 mph near Aspen Springs; 70 mph at Longmont Municipal
        Airport; 64 mph at Erie Municipal Airport. At Denver
        International Airport...peak wind gusts of 53 mph on the
        22nd and 55 mph on the 23rd were observed.
22-29 In 1960...heavy snowfall of 6.1 inches at Stapleton Airport on
        the 22nd and 23rd marked the beginning of a protracted cold
        spell which lasted until the end of the month.  The cloudy...
        cold weather was accompanied by occasional light snow or
        flurries and fog.  New record low temperatures for the dates
        were set on the 24th thru the 29th with the lowest
        temperature of 11 degrees below zero on the 28th.  The
        seven consecutive days of low temperatures of zero or below
        had been exceeded in duration only 4 times previously.  New
        low maximum temperatures for the dates were set on the 23rd...
        24th...and the 26th thru the 29th with the lowest maximum
        temperature of 8 degrees recorded on the 26th.
23    In 1904...west winds sustained to 42 mph with gusts as high as
        60 mph warmed the temperature to a high of 63 degrees.
      In 1907...a thunderstorm...relatively rare in February...was
        observed over the city.  The chance of occurrence is
        around once every ten years.
      In 1977...while 60 to 100 mph winds produced a huge dust
        storm over much of eastern Colorado...only an experimental
        windmill at the Rocky Flats nuclear plant was destroyed in
        the Denver area.  Winds at Rocky Flats were clocked to 90
        mph.  Northwest winds gusted to 46 mph at Stapleton
        International Airport.
      In 1986...wind gusts to 79 mph were clocked at Echo Lake in
        the foothills west of Denver.
      In 1992...a rare February thunderstorm occurred.  This was
        only the 5th time since 1891 that thunder has been heard
        in February.
      In 1994...periodic high winds occurred over the higher
        elevations of the Front Range eastern foothills.  The
        strongest wind gusts reached 87 mph atop Squaw Mountain
        near Idaho Springs.  Southwest winds gusted to only 25
        mph at Stapleton International Airport.
      In 1996...high winds gusting as high as 76 mph were reported
        along the Front Range foothills and adjacent urban corridor.
        Wind gusts to 70 mph were reported atop Table Mesa near
        Boulder and to 63 mph in Broomfield.  West winds gusted to
        38 mph at Denver International Airport.
      In 2012...bands of moderate to heavy snow...associated with a
        strong upper level jet...formed over the southern Front
        Range Foothills...Palmer Divide and southern Denver suburbs.
        Storm totals included: 10 inches...2 miles west-northwest of
        Highlands Ranch and Kiowa; 9.5 inches near Castle Rock and
        Littleton; 8 inches at Aspen Springs and Marston Reservoir;
        7.5 inches at Evergreen and Louviers; 7 inches...5 miles
        south-southwest of Arapahoe Park; with 4 to 6 inches
        elsewhere.  Officially...Denver International Airport
        observed 1.9 inches of snowfall.
23-24 In 1935...northwest winds sustained to 37 mph with gusts as
        high as 47 mph produced considerable blowing dust behind
        a cold front on the 23rd.  The dust was dampened by 7.0
        inches of snowfall over downtown Denver from the late
        evening of the 23rd through the evening of the 24th.
      In 1997...heavy snow fell in the foothills.  Snowfall totals
        included 8 inches at Sunshine Canyon northwest of Boulder...
        and 6 inches at Morrison.  Snowfall totaled only 2.4 inches
        at the site of the former Stapleton International Airport.
        East winds gusted to only 22 mph at Denver International
        Airport on the 23rd.
23-25 In 1912...a severe winter storm dumped 14.2 inches of snowfall
        over downtown Denver.  Snow fell continuously from 9:40 AM
        on the 23rd until 9:15 PM on the 25th with most of the snow...
        9.2 inches...on the 24th.  Temperatures were mostly in the
        20`s.  Northeast winds were sustained to 20 mph on the 24th.
24    In 1908...a duststorm occured in the city from mid-morning
        through mid-day.  North winds were sustained from 30 to
        35 mph.
      In 1927...northwest winds were sustained to 42 mph with an
        extreme velocity to 46 mph.
      In 1924...fog deposited a light coating of glaze...which was
        very thin and only accumulated on the windward side of
        cold objects.  Streets and sidewalks became slippery.
      In 1956...a strong cold front produced north wind gusts to 54
        mph...but left only 2.0 inches of snowfall at Stapleton
        Airport.
      In 1959...heavy snowfall totaled 7.5 inches at Stapleton
        Airport...where north-northeast winds gusted to only 18 mph.
      In 1968...west-northwest winds gusted to 49 mph at Stapleton
        International Airport.  The strong chinook winds warmed the
        maximum temperature to 61 degrees...the highest temperature
        of the month that year.
      In 1986...wind gusts to 65 mph were reported at Table Mesa in
        Boulder.  West winds gusted to only 28 mph at Stapleton
        International Airport where the high temperature of 70
        degrees equaled the record for the date.
      In 1991...the only measurable snowfall for the month totaled
        only 0.8 inch at Stapleton International Airport where
        north winds gusted to 28 mph.  The light snow fell for most
        of the day.
      In 1994...high winds raked the eastern foothills.  Wind speeds
        of 70 to 80 mph were common.  Wind gusts to 110 mph were
        recorded at the National Center for Atmospheric Research
        in south Boulder...while in north Boulder winds gusted to
        95 mph.  The strong winds blew the roof off a building at
        Red Rocks Community College in Lakewood...causing the
        evacuation of about 1500 people.  A semi-trailer and a
        delivery truck were overturned.  In Lakewood...a home under
        construction was destroyed by the winds.  There were
        numerous reports of vehicles damaged by flying debris...and
        many automobile windshields were shattered.  West wind gusts
        to 47 mph were recorded at Stapleton International Airport.
      In 2013...A storm system near the Four Corners region produced
        heavy upslope snowfall in and near the Front Range with
        blizzard conditions further east as it made its way across
        southern Colorado. In the Front Range Mountains and
        Foothills storm totals included: 27 inches near Pinecliffe;
        24 inches...13 miles northwest of Golden; 20 inches near
        Genesee; 17 inches near Conifer; 15 inches near Jamestown;
        14 inches...just southwest of Eldorado Springs; 12.5 inches
        near Aspen Springs; 12 inches near Evergreen and Ward; 10
        inches at Eldora Ski Area; with 8 inches near Gross
        Reservoir...Idaho Springs and Nederland. Across the Urban
        Corridor storm totals included: 12 inches in Aurora; 11.5
        inches near Highlands Ranch; 11 inches in Lakewood; 10.5
        inches just north of Longmont and Westminster; 10 inches in
        Lone Tree and Thornton; 8.5 inches in Aurora...6 miles
        southwest of Denver and near Loveland; 8 inches at Boulder...
        Broomfield...and Ralston Reservoir; 7.5 inches near
        Frederick...with 7 inches at Commerce City. The storm
        prompted the cancellation of 200 flights in and out of
        Denver International Airport.  Officially...the storm
        system produced 9.1 inches of snow at DIA which established
        a new daily snowfall record in Denver for the date.  Along
        and south of the I-70 corridor and east of Denver...the
        combination of heavy snow and strong wind produced blizzard
        conditions.  Storm totals included:  14 inches...10 miles
        south-southeast of Buckley AFB...10.5 inches...8 miles
        southeast of Watkins; with 6 inches near Byers. Northerly
        winds of 25 to 30 mph were common with gusts to 40 mph.
        At DIA...a peak wind gust of 32 mph was observed.
25    In 1887...northwest winds were sustained to 47 mph.
      In 1904...the low temperature cooled to only 49 degrees...the
        all-time record high minimum temperature for February.
      In 1957...north winds gusted to 49 mph at Stapleton Airport.
      In 1998...a bora wind storm developed in the Front Range
        foothills and adjacent plains as winds gusted between 60
        and 75 mph.  Peak wind gusts during the storm included:
        75 mph atop Blue Mountain near Wondervu...60 mph in south
        Boulder and at Jefferson County Airport near Broomfield.
        West winds gusted to 32 mph at Denver International Airport.
      In 2000...high winds occurred in and near the foothills.
        Winds gusted to 84 mph at the Rocky Flats Environmental
        Test Facility south of Boulder and to 71 mph atop Niwot
        Ridge in the mountains west of Boulder.  West winds gusted
        to only 36 mph at Denver International Airport.
25-26 In 1971...a wind gust to 100 mph was recorded in Boulder at
        the National Center for Atmospheric Research.  The cold
        west winds gusted to 53 mph in downtown Boulder.  No damage
        was reported.  Northwest winds gusted to 31 mph on the
        25th and to 38 mph on the 26th at Stapleton International
        Airport.
      In 1984...a heavy snow storm left 1 to 2 feet of new snow in
        the foothills west of Denver.  I-70 was closed...stranding
        skiers returning from the mountains.  Most had to spend
        several hours in Idaho Springs.  The snow spread over metro
        Denver with 9 inches at Littleton...Castle Rock...and Boulder
        and up to 5 inches in Aurora and Denver.  Snowfall totaled
        only 3.6 inches at Stapleton International Airport where
        north winds gusted to 31 mph.

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