Public Information Statement
Issued by NWS Denver/Boulder, CO

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Public Information Statement
National Weather Service Denver/Boulder CO
645 PM MDT SAT APR 16 2016

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

13-17 In 2001...a huge dust storm over southern and inner Mongolia
        during April 3rd through the 6th lifted desert dust into
        the jet stream.  This dust cloud moved over metro Denver
        on the 13th and persisted through the 17th.  The cloud
        created widespread haze...giving the sky a milkish cast
        due to the scattering of incoming solar radiation.
15-17 In 1922...heavy snowfall totaled 9.0 inches in downtown
        Denver.  Most of the snow...6.0 inches...fell on the 16th.
        This was the third major snow storm in a week.  Northwest
        winds were sustained to 43 mph with gusts to 47 mph on the
        15th.
16-17 In 1944...heavy snowfall totaled 7.5 inches in downtown
        Denver.  Northwest winds were sustained to 18 mph on
        the 16th.
16-18 In 2009...a potent spring storm brought heavy snow to locations
        in and near the Front Range Foothills.  A deep easterly
        upslope produced nearly 5 feet of snow in parts of the
        foothills.  The heavy snow resulted in the closure of
        Interstate 70...from Golden west to Vail...for approximately
        16 hours.  The heavy snow snapped power lines in Evergreen
        and Nederland.  The ensuing outages affected 14200
        residents.
        In the Front Range Foothills...storm totals included:  56
        inches...3 miles south of Rollinsville; 54 inches...3 miles
        southeast of Pinecliffe...43 inches at Aspen Springs...42
        inches at Evergreen...38 inches near Conifer; 37 inches at
        St. Mary`s Glacier...and 34 inches near Nederland.
        Along the Urban Corridor and Palmer Divide...the heaviest
        snow occurred above 5500 feet on the 17th.  Storm totals
        included:  22 inches...8.5 miles southwest of Franktown; 18
        inches...10 miles south-southeast of Buckley Air Force Base;
        17 inches near Cherry Creek and 7 miles south of Sedalia...
        16 inches...6.5 miles southwest of Castle Rock; 15 inches
        near Beverly Hills; 12 inches near Highlands Ranch and
        Lafayette...with 11 inches in Broomfield.  Elsewhere storm
        totals ranged from 4 to 10 inches.  Officially...only 2.6
        inches of snow was observed at Denver International Airport.
        The 24-hr precipitation for the day however was 1.16 inches...
        which established a new record for Aprtil 17th.
17    In 1889...northwest winds were sustained to 48 mph.
      In 1899...apparent post-frontal north winds were sustained
        to 42 mph with gusts as high as 48 mph.
      In 1935...light dust moved over the city behind an apparent
        dry cold front...which produced northeast winds to 19 mph
        with gusts to 20 mph.
      In 1978...winds estimated to 70 mph occurred in Morrison.
        Northwest winds gusted to 49 mph at Stapleton International
        Airport.
      In 2000...strong pre-frontal winds and widely scattered
        thunderstorms caused high winds to develop across northern
        metro Denver and portions of the northeast plains.  Peak
        wind gusts included 75 mph at Louisville.  South winds
        gusted to only 28 mph at Denver International Airport.
      In 2002...strong southwest winds in advance of a cold front
        gusted to 52 mph at Denver International Airport.
      In 2003...severe thunderstorms produced 1 inch diameter hail
        7 miles east of Brighton.  Strong thunderstorm winds blew
        out an auto windshield near Denver International Airport
        where south winds gusted to 48 mph.
17-18 In 1878...the wind blew violently all day on the 17th with
        a maximum sustained velocity of 40 mph.  Dust hung over
        the city like a cloud.  The relative humidity was zero
        nearly all day.  A terrific gale blew overnight.  There
        was much damage to buildings...signs...fences...etc.  Some
        wind gusts were so strong as to jar buildings to their
        foundations.  The station anemometer recorded sustained
        winds to 50 mph with higher gusts before it was damaged
        by the winds.  The winds moderated during the day on the
        18th and ended at sunset.
      In 1894...post-frontal rain changed to snow on the 17th
        around sunrise and continued through 9:00 AM on the 18th.
        Snowfall totaled 10.5 inches...but most of the snow melted
        as it fell.  The high temperature warmed to only 35 degrees
        on the 17th after a high of 76 on the 16th.  Northeast
        winds were sustained to 30 mph with gusts to 32 mph on
        the 17th.
      In 1998...more spring snow fell across metro Denver and in
        the foothills.  Snowfall totals included:  11 inches at
        Golden Gate Canyon; 10 inches at Highlands Ranch; 9 inches
        at Elizabeth; 8 inches at Broomfield and Morrison; and 7
        inches at Chief Hosa...Evergreen...Littleton...and Sedalia.
        Snowfall totaled only 3.2 inches at the site of the former
        Stapleton International Airport.  North winds gusted to
        22 mph at Denver International Airport.
17-19 In 1920...snow fell across the city continuously for 57 hours...
        from the early morning of the 17th until 11:40 AM on the
        19th.  The heavy wet snowfall totaled 18.2 inches with the
        greatest accumulation on the ground of 12 inches.  Winds
        during the storm were strong with sustained speeds in
        excess of 27 mph for over 40 consecutive hours...which
        created near-blizzard conditions.  The highest recorded
        wind speeds were 44 mph with gusts to 50 mph from the
        north on the 17th and 39 mph with gusts to 48 mph from
        the northwest on the 18th.  The strong winds piled the
        snow into high drifts which stopped all Denver traffic.
        Railroads were blocked with only one train entering the
        city on the 19th.  All interurban trains were blocked...as
        were the 13 trolley lines.  Thus...many workers were unable
        to get home at night and filled all of the downtown hotels
        to capacity.  No grocery or fuel deliveries were possible...
        except milk and coal to hospitals and to families with
        babies.  No lives were lost in the city...but several people
        perished in surrounding districts.  Stock losses were heavy
        on the plains.  Temperatures during the storm were in the
        20`s.
18    In 1877...strong winds blew all day with an average sustained
        velocity of 36 mph.  The maximum sustained velocity was
        60 mph.  No significant damage was reported.
      In 1903...northwest winds were sustained to 48 mph with gusts
        to 53 mph.
      In 1936...light dust spread over the city from the east on
        southeast winds gusting to 25 mph.  The surface visibility
        was reduced to about 2 miles at times.
      In 1940...this date marked the start of the longest period
        without snow...200 days...through November 3...1940.  A trace
        of snow fell on both April 17...1940...and November 4...1940.
      In 1963...strong winds were prevalent all day across metro
        Denver.  West-northwest winds gusting to 60 mph produced
        some blowing dust at Stapleton Airport.
      In 1971...a microburst wind gust to 59 mph produced some
        blowing dust at Stapleton International Airport.
      In 1978...high winds caused much blowing dust over the plains.
        Wind gusts from 80 to 96 mph were reported in Boulder with
        80 mph measured on Lookout Mountain.  Northwest winds
        gusted to 43 mph at Stapleton International Airport.
      In 2000...high winds developed in the foothills of Boulder
        County.  Peak wind gusts included 71 mph at the National
        Center for Atmospheric Research Mesa Lab near Boulder.
        In Aurora...three workers were injured when strong winds
        caused a home under construction to partially collapse.
        Two received minor injuries...while the third worker had
        to be hospitalized with severe back injuries.  South
        winds gusted to 47 mph at Denver International Airport.
      In 2002...strong northeast winds behind a cold front gusted
        to 53 mph at Denver International Airport where some
        blowing dust briefly reduced the visibility to 3 miles.
18-19 In 1884...a major storm dumped 13.8 inches of snowfall on
        downtown Denver.  Most of the snow...10.0 inches...fell on
        the 18th.  Light rain on the early morning of the 18th
        changed to heavy snow at 8:00 AM and became light after
        2:00 PM but continued until 4:00 AM on the 19th.  The
        snow melted nearly as fast as it fell.  There were only
        3 inches on the ground early on the morning of the 19th.
      In 1941...heavy snowfall totaled 8.4 inches over downtown
        Denver.  Northeast winds were sustained to 17 mph.
      In 1993...sporadic high winds occurred across metro Denver.
        Significant wind gusts included 97 mph at Rollinsville...
        80 mph in southwest Boulder...and 55 mph at Stapleton
        International Airport.  The strong winds snapped a pine
        tree top...about 15 feet long and 8 inches in diameter...which
        crashed through the roof of a church in Evergreen...causing
        one thousand dollars in damage.  Wind gusts of 50 to 60 mph
        caused structural damage to 3 homes under construction in
        Broomfield.  Northwest winds gusted to 55 mph at Stapleton
        International Airport.
      In 1995...the second spring storm of the month dumped heavy
        snow in the foothills.  The upslope flow along with areas of
        thunder snow dropped 6 to 12 inches of snow in the foothills
        west of Denver and Boulder.  Snowfall totaled 4.6 inches at
        the site of the former Stapleton International Airport...but
        most of the snow melted as it fell.  East winds gusted to
        29 mph at Denver International Airport on the 18th.
18-20 In 1966...sub-freezing temperatures caused thousands of
        dollars in damage to fruit trees across metro Denver.
        Minimum temperatures were in the teens each morning and
        failed to reach above freezing on the 19th.  The low
        temperature of 13 on the 20th set a new record minimum for
        the date.  Snowfall totaled 5.7 inches at Stapleton
        International Airport during the period.
19    In 1899...northwest winds were sustained to 48 mph with
        gusts as high as 60 mph in the city.
      In 1941...the last snow of the season...0.4 inch...occurred...
        marking the end of the shortest snow season...167 days.
        The first snow of the season...a trace...occurred on
        November 4...1940.
      In 1954...strong gusty winds raked metro Denver for most of
        the day producing some blowing dust.  At midday...a severe
        dust devil was sighted in the Westwood area of southwest
        Denver.
      In 1955...cold west winds at 52 mph with gusts as high as 69
        mph were recorded at Stapleton Airport where blowing dust
        reduced the visibility to 1/2 mile.
      In 1960...the second wind storm in 3 days produced sustained
        west winds up to 44 mph with gusts as high as 58 mph at
        Stapleton Airport.  Winds were strong and gusty most of
        the day...but no damage was reported.
      In 1963...the second windy day in a row produced west-
        northwest wind gusts to 52 mph at Stapleton Airport.
      In 1971...a tornado occurred in the southwest corner of Weld
        County about 10 miles west-northwest of Brighton.  The
        storm moved through a farm yard damaging equipment and
        structures.  The strong tornadic winds lifted a stock tank
        over 2 fences into a corral 150 feet away.  Later...a
        tornado touched down briefly west-southwest of Buckley
        Field...8 miles southeast of Stapleton International
        Airport.  No damage was reported.
      In 1985...high winds occurred in the foothills.  Winds gusted
        to 97 mph atop Squaw Mountain in the foothills west of
        Denver.  West winds gusted to 37 mph at Stapleton
        International Airport.
      In 1987...a powerful cold front produced high winds and
        engulfed metro Denver in huge clouds of blowing dust that
        lowered the visibility to as little as 100 yards.  The cold
        front generated winds as high as 72 mph at Brighton...67 mph
        in Thornton...and 54 mph at Stapleton International Airport.
        Winds of 50 to 70 mph were common along the Front Range from
        Denver north.  The high wind gusts flipped a light plane
        taxiing at Stapleton International Airport...slightly
        injuring two people on board.  The cold front dropped the
        temperature from a high of 80 degrees at 3:00 pm to a low of
        33 degrees at midnight.  Nearly an inch of snow...0.8 inch...
        fell at Stapleton International Airport before midnight.
      In 1988...a tornado touched down in Fort Lupton...following a
        path 50 to 75 yards wide for 2 1/2 blocks.  The twister
        damaged roofs on 2 schools and broke numerous windows;
        about 10 houses were damaged and several cars had windows
        blown out.  Several trees were downed.
      In 1989...winds were clocked to 68 mph in Wheat Ridge.
        Microburst winds gusted to 35 mph at Stapleton International
        Airport.
      In 1996...high winds gusting from 70 to near 100 mph developed
        in the Front Range foothills and adjacent plains.  Numerous
        power outages were reported as power lines and poles were
        downed.  The high winds blew the chimney off the roof of a
        house in Westminster.  Numerous homes received minor shingle
        damage.  Some of the stronger wind gusts included:  98 mph
        at Jefferson County Airport in Broomfield...91 mph atop Squaw
        Mountain west of Denver...and 75 mph atop Table Mesa near
        Boulder.  West northwest winds gusted to 45 mph at Denver
        International Airport.
      In 2001...westerly chinook winds...gusting as high as 40 mph at
        Denver International Airport...prevented the low temperature
        from dropping below 51 degrees...setting a new record high
        minimum for the date.  The high temperature of 77 degrees
        was not a record.
      In 2005...severe thunderstorms produced large hail across
        metro Denver.  Hail as large as 1 1/4 inches in diameter
        was measured in Arvada.  Hail to 1 inch in diameter fell in
        Westminster...Northglenn...and Thornton.  Hail to 7/8 inch
        was reported near Brighton...Barr Lake...and Castle Rock.
        Hail to 3/4 inch fell in Elizabeth and Broomfield and near
        Golden...Brighton...and Fort Lupton.
19-20 In 1892...rain on the 18th changed to snow on the 19th and
        totaled 6.0 inches over downtown Denver into the 20th.
        Total precipitation was 1.56 inches.  North winds were
        sustained to 26 mph on the 19th.
      In 1907...a major storm dumped 18.0 inches of snowfall in
        downtown Denver.  Much of the heavy wet snow melted as
        it fell.  The most snow on the ground was 7.0 inches at
        6:00 PM on the 19th.  North to northeast winds were
        sustained to 42 mph on the 19th and to 21 mph on the
        20th.  High temperatures were in the low to mid 30`s
        with low readings around 20.
19-21 In 1984...a large snowstorm buried most of Colorado under a
        thick mantle of wet snow.  Total snow amounts ranged from
        10 to 20 inches across metro Denver and a whopping 20 to
        40 inches in the adjacent foothills.  The snow closed roads
        and damaged electrical transformers...causing numerous power
        outages.  Nearly 14 inches (13.6) of snow fell at Stapleton
        International Airport where the combination of snow and
        wind closed all but one runway...resulting in the cancellation
        of many flights.  Both I-70 and I-76 were closed to the east
        of Denver.
19-22 In 1933...a major storm dumped 16.8 inches of snowfall over
        downtown Denver when rain changed to snow during the early
        morning of the 20th and continued through midday of the
        22nd.  Most of the snow fell on the 21st.  Due to melting...
        the most snow on the ground was 10.5 inches at 6:00 PM on the
        21st.  Before the snow started...a strong cold front on the
        evening of the 19th produced north winds sustained to 35 mph
        with gusts to 37 mph.  The strong winds deposited a thin
        layer of dust on the city.  North to northwest winds were
        sustained to 31 mph with gusts to 35 mph on the 20th and to
        29 mph with gusts to 32 mph on the 21st.
20    In 1874...light snow fell for most of the day...but melted almost
        as fast as it fell.  The flakes...as large as 1 1/2 inches in
        diameter during the afternoon...resembled white feathers.
        Precipitation from melted snow was only 0.21 inch in the
        city.  Snowfall was much heavier in the mountain parks
        where snow depths were reported between 3 and 5 feet from
        the storms of the 15th and 20th.  The heavy snow resulted
        in the deaths of hundreds of cattle and sheep.
      In 1875...the city was enveloped in a severe wind and sand
        storm.  For nearly 30 minutes before the storm...it could
        be seen moving toward the city from the northwest as a black
        wall of clouds extending only 10 degrees above the horizon.
        At 5:30 PM...the sand was sweeping past in such clouds that
        objects at a distance of only 10 yards were not visible.
        The streets were entirely deserted.  The greatest velocity
        of wind during the storm was 36 mph from the north-northwest.
        The storm diminished by 7:00 PM.  Swarms of grasshoppers were
        seen today and were reported in all parts of the territory.
      In 1897...southwest winds were sustained to 46 mph with gusts
        to 50 mph.  The apparent chinook winds warmed the
        temperature to a high of 76 degrees.
      In 1905...apparent post-frontal north winds were sustained to
        43 mph.
      In 1912...west winds were sustained to 42 mph with an extreme
        velocity of 48 mph.
      In 1958...strong chinook winds gusted to 52 mph at Stapleton
        Airport.
      In 1981...3/4 inch hail fell in Lakewood with up to one half
        inch of rain in a few minutes across northern sections of
        of the City of Denver.  Thunderstorm rainfall totaled
        0.39 inches at Stapleton International Airport...where
        1/4 inch hail was also measured.
      In 1987...6 to 12 inches of heavy snow fell in the foothills.
        Only 2.5 inches of snow fell at Stapleton International
        Airport where the usual flight delays occurred.
      In 2005...severe thunderstorms produced large hail across
        metro Denver.  Hail as large as 1 3/4 inches in diameter
        fell at Denver International Airport.  Hail to 3/4 inch
        in diameter fell in and near Golden and near Hudson...
        Keenesburg...Barr Lake...and Bennett.
      In 2013...an avalanche pushed a group of six snow boarders
        into the Sheep Creek gully of Loveland Pass. This is
        near but outside the Loveland Ski Area boundary. Five of
        the six members of the group died as they were completely
        buried. The avalanche is the deadliest in Colorado since
        1962 when seven people were killed when a slide buried
        residents at Twin Lakes near Independence Pass.
20-22 In 1957...strong and gusty south to southeast winds raked
        metro Denver each day.  The strongest wind gust of 55 mph
        occurred on the 21st when blowing dust briefly reduced the
        visibility to 3/4 mile at Stapleton Airport.
20-23 In 1989...unusually warm weather resulted in several daily
        temperature records being broken in Denver.  The high
        temperature of 89 degrees on the 21st exceeded the record
        maximum for the month at that time.  Daily record high
        temperatures were either exceeded or equaled with 83
        degrees on the 20th...88 degrees on the 22nd...and 85
        degrees on the 23rd.  The low temperature of 55 degrees
        on the 22nd equaled the record high minimum for the date.
21    In 1885...rain changed to snow during the early morning and
        was the heaviest snow of the season.  Total snowfall was
        estimated at 8.0 inches over downtown Denver...but the
        snow melted rapidly on the ground as it fell.  However...
        the weight of the snow...as well as northwest winds
        sustained to 29 mph downed telegraph and telephone wires.
        Several large branches of trees were also broken by the
        weight of the snow.  Precipitation totaled 1.01 inches
        from the storm.
      In 1887...west winds were sustained to 47 mph.
      In 1932...the temperature dipped to a low of only 60 degrees...
        the all-time record high minimum for the month.
      In 1988...a small tornado was observed by National Weather
        Service employees about 3 miles northwest of Thornton.  It
        was on the ground for about 2 minutes.  No damage was
        reported.  Later...lightning struck two 14-year-old girls on
        a softball field in Westminster.  One was killed...while the
        other suffered moderate injuries.  Northwest winds gusted
        to 44 mph at Stapleton International Airport behind a
        cold front.
      In 2010...severe thunderstorms produced large hail...strong
        winds and a tornado across parts of Adams...Arapahoe...
        Elbert...and Weld Counties.  The hail...up to 1.50 inches
        in diameter...came down so heavy along parts of I-70
        and I-76 that snowplows had to be called out to remove
        it.  Numerous vehicles were damaged by hail.  In Weld
        County...very heavy rain and hail accompanied
        thunderstorm winds up to 75 mph.  Hail up to 1.50 inches
        was reported near Bennett; 1.25 inches...5.3 miles east
        of Englewood; 1.0 inch size hail near Buckley Field; with
        0.88 inch size hail near Boulder. A weak tornado touched
        down briefly in Elbert County...about 9 miles southwest of
        Deer Trail...but did no damage. Several minor accidents
        were reported with snowpacked and slick road conditions
        along with very low visibilities. Minor street flooding
        was reported in southeast Aurora.  Denver International
        Airport recorded 0.30 inches of rainfall.  Also...a peak
        wind gust to 36 mph from the southeast was observed at
        the airport.
21-22 In 1910...north winds were sustained to 45 mph behind a cold
        front.  Rainfall totaled 0.63 inch.
      In 1923...snowfall of 2.0 inches in the city was the only
        snow of the month and the last measurable snow of the
        season.  Northwest winds were sustained to 25 mph on
        the 21st.
      In 1952...heavy snowfall totaled 7.6 inches at Stapleton
        Airport.  The storm was accompanied by north winds gusting
        to 33 mph.
      In 2001...the second major snow storm in 11 days moved into
        metro Denver with blizzard conditions developing again
        across the plains to the northeast of Denver.  Snowfall
        amounts ranged up to 9 inches in metro Denver with up to
        23 inches in the foothills.  Northwest winds were sustained
        at 20 to 30 mph with gusts as high as 36 mph at Denver
        International Airport which was again shut down for nearly
        an hour by power outages on the 22nd.  The outages affected
        lighting in the concourses...train operations...de-icing and
        refueling operations...flight information displays...and
        security screenings.  Navigational aids were also affected...
        resulting in the cancellation of 58 arriving and departing
        flights which stranded about 5000 passengers.  Across metro
        Denver storm totals included:  9 inches at Eldorado Springs;
        7 inches in Boulder; 6 inches at Ken Caryl...Northglenn and
        near Sedalia; and 5 inches in Arvada and Morrison.  Only
        1.7 inches of snow were measured at the site of the former
        Stapleton International Airport.  In the foothills snow
        totals included:  23 inches near Fritz Peak south of
        Rollinsville...17 inches near Jamestown...16 inches near
        Blackhawk...14 inches in Coal Creek Canyon...13 inches at
        Idaho Springs and near Nederland...11 inches at Aspen
        Springs...and 10 inches near Bergen Park.
21-23 In 1999...a spring snowstorm dumped heavy snowfall over metro
        Denver and in the foothills.  Nearly 3 feet of snow fell
        in the foothills with over a foot in the city.  The heavy
        wet snow downed power lines in Douglas and Elbert counties.
        Scattered outages were reported at Parker...Franktown...
        Sedalia...and Castle Rock.  Some residents were without
        electricity for as long as 20 hours.  The inclement weather
        was blamed...at least in part...for several traffic accidents
        along the I-25 corridor between Denver and Castle Rock.
        Snowfall totals included:  32 inches at Idaho Springs; 31
        inches on Crowhill; 29 inches near Evergreen; 26 inches at
        Chief Hosa and Coal Creek Canyon; 25 inches at Bailey; 24
        inches at Floyd Hill; 23 inches at Conifer...Genesee...Golden
        Gate Canyon...North Turkey Creek...and Pine Junction; 13
        inches at Broomfield and near Sedalia;  12 inches in
        Boulder; 11 inches at Louisville and Parker; and 9 inches
        at the site of the former Stapleton International Airport.
      In 2004...heavy snow fell across metro Denver...when low level
        upslope conditions developed against the foothills and
        Palmer Divide.  Snowfall totals included:  18 inches in the
        foothills southwest of Boulder...17 inches at Intercanyon and
        near Conifer...10 inches near Blackhawk and Parker...9 inches
        at Castle Rock and near Sedalia...7 inches in Centennial...
        Littleton...and near Lone Tree.  Elsewhere across metro
        Denver...snowfall generally ranged from 2 to 5 inches.
        Snowfall was 4.7 inches at Denver Stapleton.  Northwest
        winds gusted to 35 mph at Denver International Airport
        on the 21st.
22    In 1896...southwest winds were sustained to 39 mph with gusts
        as high 56 mph.  The apparent chinook winds warmed the
        temperature to a high of 78 degrees.
      In 1904...west winds sustained to 40 mph with gusts to 48 mph
        warmed the temperature to a high of 69 degrees.
      In 1925...southeast winds sustained to 42 mph with gusts
        to 46 mph warmed the temperature to a high of 76 degrees.
      In 1958...west-northwest winds gusted to 48 mph at Stapleton
        Airport.
22-23 In 1885...the worst snow storm since station records began in
        1872 dumped a total of 24.0 inches of snowfall on the city.
        The 23.0 inches of snow recorded on the 22nd and 23rd was
        the greatest 24-hour snowfall ever recorded during the
        month of April.  Streets were impassable...roofs caved in...
        telegraph and telephone wires were downed...railroads were
        blocked and trains delayed...and most business came to a
        complete standstill.  Estimated losses were reported to
        50 thousand dollars.  The total snowfall was partly
        estimated due to melting.  Precipitation from the storm
        totaled 2.79 inches.
      In 1915...post-frontal rain during the day and overnight
        totaled 2.00 inches.  Most of the rain fell on the 22nd.
      In 1945...6.7 inches of snow fell over downtown Denver.  This
        was the third major snow in a little over 3 weeks...which
        made this month the 4th snowiest on record.  Northeast winds
        were sustained to 25 mph and light hail fell on the 22nd.
      In 2013...a spring storm brought heavy snow to the mountains...
        with period of moderate to heavy snow to portions of the
        Front Range Foothills and Urban Corridor. In the mountains
        and foothills...storm totals included: 18 inches at Niwot
        Ridge SNOTEL; 16.5 inches near Ward; 13 inches at Arapahoe
        Basin and Roach SNOTEL...12 inches near Blackhawk; 11.5
        inches near Nederland; 11 inches near Allenspark and at
        Loveland Ski Area; 10 inches near Idaho Springs and
        Pinecliffe; with 9.5 inches and near Silverthorne. Along
        the Urban Corridor storm totals included: 7.5 inches near
        Morrison; 7 inches at the National Weather Service Office
        in Boulder and Niwot; 6.5 inches near Arapahoe Park and
        Superior; with 6 inches at Lafayette and Lakewood.  At
        Denver International Airport...4.7 inches of new snowfall
        was observed.
22-24 In 2010...a potent spring storm brought heavy...wet snow to
        areas in and near the Front Range Foothills and widespread
        rainfall across the adjacent plains.  In the Front Range
        Foothills and North-Central Mountains east of the
        Continental Divide...storm totals ranged from 15 to 30
        inches.  Storm totals included:  29.5 inches...3 miles
        southeast of Pinecliffe; 27 inches...8 miles northeast
        of Four Corners; 23 inches at Willow Creek; 22.5 inches...
        13 miles northwest of Golden; 21 inches at Never Summer;
        17 inches at Eldorado Springs; 16.5 inches...3 miles west
        of Jamestown.  Denver International Airport reported just
        a trace of snowfall...but measured 2.01 inches of rainfall
        for the duration of the storm. In addition...a peak wind
        gust to 54 mph from the northwest was observed at the
        airport on the 23rd
 23   In 1889...north winds were sustained to 48 mph.
      In 1913...northeast winds were sustained to 46 mph with gusts
        to 60 mph behind a dry cold front.
      In 1914...a thunderstorm produced considerable hail and 0.29
        inch of rain.  West winds were sustained to 42 mph with
        gusts to 48 mph.
      In 1942...hail of unknown size fell over the city.
      In 1958...a funnel cloud was sighted for 20 minutes...15 miles
        southeast of Stapleton Airport.  The funnel formed in
        advance of a thunderstorm and hung about a thousand feet
        below the base of the cloud...but remained aloft.  Later in
        the day...3.6 inches of snow fell at Stapleton Airport.
      In 2002...persistent dry conditions in the foothills
        contributed to the first large forest fire of the season
        near Bailey.  Very dry and windy conditions allowed the
        fire...initially started by a careless smoker...to grow
        into a 2400-acre blaze before it could be contained.
        Fortunately...no significant damage occurred to homes or
        other property in the area.
      In 2006...severe thunderstorms produced large hail across
        metro Denver.  Hail as large as 1.25 inches in diameter
        fell in south Denver with hail to 0.88 inch across the
        rest of the city.  Hail to 1.00 inch in diameter was
        reported near Morrison...in south Lakewood...and in Aurora
        near Cherry Creek.  Hail to 0.88 inch was measured in
        Golden with 0.75 inch hail in east Lakewood.
23-24 In 1883...snowfall totaled 7.6 inches in downtown Denver.
      In 1904...a thunderstorm produced hail during the late evening
        of the 23rd.  Apparent post-frontal rain changed to snow
        during the early morning of the 24th...but totaled only 2.0
        inches.  Precipitation consisting of rain...melted hail...and
        snow totaled 0.60 inch.  Northeast winds were sustained to
        41 mph with gusts as high as 52 mph on the 24th.
      In 1905...rain changed to snow and totaled 8.0 inches.  Much
        of the snow melted as it fell with only 2.5 inches measured
        on the ground.  Precipitation totaled 1.88 inches.
        Northeast winds were sustained to 20 mph on the 23rd.
      In 1942...the South Platte River reached flood conditions in
        the city.  As many as 15 thousand residents were warned
        to evacuate their homes temporarily.  Two lives were lost
        in the city.  Four bridges were washed out by the flood
        waters and other bridges were endangered.  The damage was
        generally limited to bridges that were in poor condition.
        However...the flood waters did not overflow their channel
        banks within the city limits.
      In 1980...heavy rain began in the eastern foothills on the
        night of the 23rd and turned to heavy wet snow on the 24th.
        Up to a foot and a half of snow fell in the foothills west
        of Denver.  At Stapleton International Airport precipitation
        totaled 1.58 inches...but only 3.7 inches of snow fell from
        the storm.  East winds gusted to 24 mph.
      In 1997...locations in and near the foothills received the
        greatest snow of the year as a winter-like storm system
        moved into metro Denver.  East to southeast winds at speeds
        of 15 to 35 mph were common with even stronger gusts above
        9 thousand feet.  Snow fell at a rate of 2 to 3 inches an
        hour as deep upslope combined with a moist and unstable
        air mass.  The snow began in the foothills above 7500 feet
        during the evening of the 23rd.  By sunrise the snow level
        had dropped to 5000 feet.  The hardest hit areas extended
        from I-25 into the foothills.  Snowfall totals in the
        foothills ranged from 1 1/2 to over 3 1/2 feet.  In the
        city...snowfall ranged from 8 to 18 inches.  Some snowfall
        amounts included:  36 inches at Coal Creek Canyon; 31 inches
        at Nederland and Wondervu; 20 to 24 inches near Blackhawk...
        at Echo Lake...and North Turkey Creek Canyon; 15 to 19 inches
        at Boulder...Central City...Conifer...Evergreen...Georgetown...
        and Louisville; 8 to 14 inches in Arvada...Broomfield...
        Westminster...Wheat Ridge...Castle Rock...and Ken Caryl Ranch.
        Only 2.3 inches of snow fell at the site of the former
        Stapleton International Airport on the 24th.  East winds
        gusted to 36 mph at Denver International Airport on the
        24th.
      In 2003...a strong and deep northerly flow circulating around
        a closed upper low pressure center allowed heavy snow to
        fall in the mountains and eastern foothills.  Snowfall
        totaled 14 inches in Idaho Springs.  Rain was mixed with
        snow and thunder across metro Denver.  Snowfall was only
        0.9 inch overnight at the site of the former Stapleton
        International Airport.  Precipitation totaled 1.34 inches
        at Denver International Airport...where northwest winds
        gusted to 55 mph on the 23rd.
      In 2007...a storm system intensified over Southeast Colorado...
        allowing for heavy snow and rain to develop over much of
        North-Central and Northeast Colorado.  Severe thunderstorms
        preceded the storm system on the 23rd...affecting the Urban
        Corridor.  Nickel size hail was reported in Boulder and a
        small landspout touched down near Byers.  On the 24th...heavy
        snow fell in the foothills west of Denver and Boulder...where
        storm totals ranged from 1 to 2 feet.  Heavy snow also
        occurred along the Palmer Divide...with storm totals of 10 to
        16 inches.  Elsewhere...a steady moderate to heavy rainfall
        was reported.  Denver International Airport measured 2.09
        inches of rainfall...which shattered the previous 24-hr
        record of 1.29 inches for the 24th of April.  The heavy wet
        snow caused several power outages.  In some instances it
        took several days to restore power.  Several road closures
        were reported...including Interstates 25 and 70.  A jacknifed
        semi-trailer backed up traffic for nearly 20 miles...on
        southbound I-25...between Denver and Colorado Springs.  In
        addition...a 50-ton boulder blocked the southbound lane of
        State Highway 285...near Parmalee Gulch.  Crews had to use
        explosives to break up the boulder and clear the debris.
        Stranded buses and impassable roadways also forced several
        school closures.
23-25 In 1935...heavy wet snow fell across metro Denver.  The storm
        started as rain on the 23rd and changed to snow early on the
        morning of the 24th.  There was continuous precipitation for
        a period of 48 hours.  Snowfall totaled 19.0 inches over the
        city and 20.0 inches at Denver Municipal Airport.  However...
        due to warm temperatures in the 30`s...much of the snow
        melted as it fell and did not seriously disrupt traffic.
        The greatest snow accumulation on the ground downtown was
        12 inches...but it quickly melted.  The highest sustained
        wind speed recorded during the storm was 28 mph from the
        north on the 23rd.  The storm contained 3.16 inches of
        moisture.

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