Public Information Statement
Issued by NWS Denver/Boulder, CO

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000
NOUS45 KBOU 310045
PNSBOU
COZ030>051-312300-

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
645 PM MDT SAT MAY 30 2015

...THIS WEEK IN METRO DENVER WEATHER HISTORY...

26-31 IN 1995...A COOL PERIOD WITH LIGHT MORNING SHOWERS AND
        MODERATE TO HEAVY AFTERNOON SHOWERS AND THUNDERSTORMS
        PUSHED RIVERS ALREADY SWOLLEN FROM MOUNTAIN SNOW MELT
        OVER THEIR BANKS CAUSING MINOR FLOODING.  STREAMS AND
        RIVERS SUCH AS THE SOUTH PLATTE AND BOULDER CREEK FLOODED
        MEADOWLANDS...BIKE PATHS...ROADS NEAR STREAMS...AND OTHER
        LOW LYING AREAS.  NO SIGNIFICANT PROPERTY DAMAGE WAS
        REPORTED AND CROP DAMAGE WAS UNKNOWN.  RAINFALL TOTALED
        1.79 INCHES AT THE SITE OF THE FORMER STAPLETON
        INTERNATIONAL AIRPORT AND ONLY 1.51 INCHES AT DENVER
        INTERNATIONAL AIRPORT.
29-1  IN 1894...HEAVY RAIN COMBINED WITH SNOWMELT RUNOFF CAUSED
        WIDESPREAD FLOODING OVER THE SOUTH PLATTE RIVER BASIN.
        RAINFALL WAS HEAVIEST IN THE FOOTHILLS WHERE 5 TO 8
        INCHES WERE MEASURED OVER THE 4 DAYS.  HEAVY RAINFALL
        WEST OF BOULDER FLOODED MINING TOWNS AND DAMAGED MINING
        PROPERTIES.  IN THE CANYONS ABOVE BOULDER...RAILROADS
        AND ROADS WERE WASHED OUT ALONG WITH MANY BRIDGES.  THE
        FLOODWATERS SPREAD INTO CENTRAL BOULDER AND COVERED A
        WIDE AREA FROM UNIVERSITY HILL NORTH TO NEAR MAPLETON
        HILL TO A MAXIMUM DEPTH OF 8 FEET.  MANY HOUSES WERE
        SWEPT AWAY...AND EVERY BRIDGE IN BOULDER WAS DESTROYED.
        A FEW PEOPLE...TRAPPED IN THEIR HOMES BY THE FLOODWATERS...
        HAD TO BE RESCUED.  HOWEVER...THE GRADUAL RISE OF THE FLOOD
        WATERS RESULTED IN ONLY ONE DEATH.  BOULDER CREEK SPREAD TO
        A WIDTH OF NEARLY ONE MILE IN THE PASTURE LAND TO THE EAST
        OF BOULDER.  EXTENSIVE FLOODING ON LEFT HAND CREEK NORTH
        OF BOULDER WASHED AWAY RAILROAD AND WAGON BRIDGES.  THE
        HEAVY CLOUDBURSTS CAUSED FLOODING ON BEAR CREEK...WHICH
        WASHED AWAY BRIDGES...RAILROAD TRACKS...AND STRUCTURES AND
        DESTROYED THE CANYON ROADWAY.  MORRISON SUSTAINED THE
        HEAVIEST FLOOD DAMAGE ON BEAR CREEK.  IN DENVER...RAINFALL
        TOTALED ONLY 1.50 INCHES ON THE 30TH AND 31ST...BUT THE
        HEAVY RAINFALL ON UPSTREAM TRIBUTARIES OF THE SOUTH PLATTE
        RIVER CAUSED THE RIVER TO RISE AS MUCH AS 10 FEET ABOVE THE
        LOW WATER MARK IN THE CITY...WHICH CAUSED SOME FLOODING OF
        PASTURE LAND DOWNSTREAM TO A DEPTH OF 6 FEET NEAR BRIGHTON.
30-31 IN 1935...HEAVY THUNDERSTORM RAINS OVERNIGHT CAUSED FLASH
        FLOODING EAST OF THE CITY ON BOTH KIOWA AND BIJOU CREEKS...
        RESULTING IN A TOTAL OF 9 DEATHS.  MOST OF THE DAMAGE WAS
        ON KIOWA CREEK WHERE THERE WERE MORE STRUCTURES.  THE
        WATER ROSE RAPIDLY DURING THE STORM...RIPPING HOUSES AND
        STORES FROM THEIR FOUNDATIONS AND SWEEPING THEM DOWNSTREAM.
        PRECIPITATION IN DENVER TOTALED ONLY 0.01 INCH.  HAIL FELL
        IN THE CITY FOR A SHORT TIME.  THE HAIL WAS VERY SMALL AND
        CAUSED NO DAMAGE.
      IN 1983...A LATE STORM OF RAIN AND SNOW HIT THE FRONT RANGE.
        OVER AN INCH OF RAIN FELL AT SOME SPOTS...AND ABOVE 7
        THOUSAND FEET...1 TO 5 INCHES OF SNOW WHITENED THE GROUND.
        SOME SNOW FLAKES EVEN FELL IN THE WESTERN SUBURBS OF METRO
        DENVER ON THE NIGHT OF THE 30TH.
      IN 2002...UNSEASONABLY WARM WEATHER AT THE END OF THE MONTH
        RESULTED IN 3 TEMPERATURE RECORDS.  HIGH TEMPERATURE OF
        91 DEGREES ON THE 30TH EQUALED THE RECORD MAXIMUM FOR THE
        DATE.  LOW TEMPERATURE OF 61 DEGREES ON THE 31ST WAS A
        RECORD HIGH MINIMUM FOR THE DATE.  HIGH TEMPERATURE OF 93
        DEGREES ON THE 31ST WAS A RECORD MAXIMUM FOR THE DATE.
31    IN 1917...RAINFALL TOTALED 0.55 INCH AND WAS MIXED BRIEFLY
        WITH SNOW AROUND MIDDAY.  ONLY A TRACE OF SNOW FELL.
        COLD TEMPERATURES DURING THE DAY RESULTED IN A HIGH
        OF 44 DEGREES AND A LOW OF 35 DEGREES.  THE MONTH CLOSED
        AS THE COLDEST MAY ON RECORD WITH A MEAN TEMPERATURE OF
        ONLY 48.7 DEGREES...ABOUT 8 DEGREES BELOW NORMAL.  THE
        COLD TEMPERATURES DURING THE MONTH HAD A MARKED EFFECT
        ON SHADE TREES AND SHRUBS IN THE CITY.  ELMS WERE JUST
        STARTING TO LEAF.  LEAVES ON COTTONWOODS AND MAPLES WERE
        ONLY HALF FORMED.  LILACS WERE JUST BLOOMING...AND SNOWBALL
        CLUSTERS WOULD NOT BLOOM FOR DAYS.
      IN 1959...THE PUBLIC REPORTED A TORNADO BRIEFLY TOUCHING THE
        GROUND 10 MILES SOUTH OF STAPLETON AIRPORT.  NO DAMAGE
        WAS REPORTED.
      IN 1984...A THUNDERSTORM MICROBURST PRODUCED A WIND GUST TO 67
        MPH...7 MILES EAST OF BOULDER.
      IN 1991...HAIL TO GOLF BALL SIZE PUMMELED SOUTHERN AND
        SOUTHEASTERN SECTIONS OF METRO DENVER AND CONTINUED ON EAST
        TO WATKINS.  SEVERAL HOUSES AND CARS WERE DAMAGED.  LATER...
        THUNDERSTORMS DUMPED HEAVY RAIN ACROSS THE CITY OF DENVER...
        CAUSING STREET FLOODING IN AN AREA JUST SOUTH OF DOWNTOWN
        AND JUST NORTHWEST OF DOWNTOWN.  WATER WAS UP TO 10 INCHES
        DEEP OVER NORTHWEST DENVER.  A BRIEF TORNADO TOUCHED DOWN IN
        CASTLE ROCK WHERE 3/4 INCH DIAMETER HAIL ALSO FELL.
      IN 1993...THUNDERSTORMS DROPPED DIME SIZE HAIL IN COMMERCE
        CITY.
      IN 1994...LIGHTNING STRUCK AN APARTMENT IN LOUISVILLE AND
        DAMAGED ELECTRONIC EQUIPMENT...INCLUDING A COMPUTER.
      IN 2006...A SEVERE THUNDERSTORM PRODUCED 1 INCH DIAMETER
        HAIL NEAR BOULDER.
1     IN 1875...A WINDSTORM DURING THE LATE AFTERNOON AND EARLY
        EVENING PRODUCED SUSTAINED WINDS TO 50 MPH.
      IN 1898...SOUTH WINDS WERE SUSTAINED TO 41 MPH WITH GUSTS
        TO 46 MPH.
      IN 1917...A TRACE OF UNMELTED SNOW FELL IN DOWNTOWN DENVER.
        PRECIPITATION FOR THE DAY TOTALED 0.08 INCH...HALF OF
        WHICH WAS ESTIMATED TO BE FROM MELTED SNOW.
      IN 1919...SNOWFALL OF 0.4 INCH WAS MEASURED IN DOWNTOWN
        DENVER.  THIS WAS THE GREATEST CALENDAR DAY AND 24-HOUR
        SNOWFALL EVER RECORDED DURING THE MONTH OF JUNE.
        PRECIPITATION (RAIN AND MELTED SNOW) TOTALED 0.15 INCH.
        TWO TEMPERATURE RECORDS WERE SET.  THE LOW TEMPERATURE
        OF 32 DEGREES WAS A RECORD MINIMUM FOR THE DATE.  THE
        HIGH TEMPERATURE OF ONLY 40 DEGREES WAS A RECORD LOW
        MAXIMUM FOR THE DATE AND THE MONTH.  NORTH WINDS WERE
        SUSTAINED TO 36 MPH WITH GUSTS TO 40 MPH.
      IN 1951...A TRACE OF SNOW FELL AT STAPLETON AIRPORT.
      IN 1961...HAIL AS LARGE AS 1 1/2 INCHES IN DIAMETER FELL
        IN WEST DENVER WITH HAIL TO 1 1/4 INCHES REPORTED IN
        DERBY.
      IN 1965...A MAN STRUCK BY LIGHTNING IN SOUTHEAST DENVER DIED
        SHORTLY AFTER BEING ADMITTED TO A HOSPITAL.  LIGHTNING
        DAMAGED POWER LINES IN EAST AND SOUTHEAST DENVER.
      IN 1980...STRONG THUNDERSTORM WINDS BLEW IN THE WINDOWS OF A
        MOBILE HOME IN NORTHGLENN.
      IN 1990...A THUNDERSTORM PRODUCED WIND GUSTS TO 63 MPH IN
        BOULDER.  A SMALL TORNADO TOUCHED DOWN IN A FARMER`S FIELD
        BETWEEN THE TOWNS OF LOUISVILLE AND LAFAYETTE.  ANOTHER
        TORNADO WAS SPOTTED IN AN OPEN FIELD 3 MILES WEST OF
        BRIGHTON.  A FUNNEL CLOUD WAS SIGHTED NEAR HUDSON.
        A MICROBURST WIND GUST TO 55 MPH WAS RECORDED AT STAPLETON
        INTERNATIONAL AIRPORT.  NO DAMAGE WAS REPORTED FROM ANY OF
        THESE EVENTS.
      IN 1991...SEVERE THUNDERSTORMS PRODUCING LARGE HAIL...DAMAGING
        WINDS...FUNNEL CLOUDS...AND HEAVY RAIN WERE WIDESPREAD ACROSS
        METRO DENVER.  FUNNEL CLOUDS WERE REPORTED IN LAKEWOOD...
        BOULDER...ARVADA...AND JUST EAST OF THE ROCKY MOUNTAIN
        ARSENAL.  HAIL UP TO GOLF BALL SIZE FELL IN LAKEWOOD...JUST
        WEST OF SEDALIA...IN LITTLETON...ARVADA...ENGLEWOOD...AND THE
        CITY OF DENVER.  A MOBILE HOME PARK IN JEFFERSON COUNTY
        REPORTED HAIL TO 3 FEET DEEP.  UP TO 1.00 INCH OF RAIN
        FELL IN 45 MINUTES NEAR BOULDER...CAUSING BOULDER CREEK TO
        FLOW OUT OF ITS BANKS.  ROCK AND MUD SLIDES FORCED THE
        CLOSURE OF MANY ROADS IN BOULDER COUNTY.  LATER IN THE
        AFTERNOON THUNDERSTORMS PRODUCED RAINFALL AMOUNTS OF 2 TO
        3 INCHES OVER A COUPLE OF HOURS.  CLEAR CREEK IN GOLDEN
        SPILLED OVER ONTO U.S. HIGHWAY 6.  HEAVY RAINS WASHED AWAY
        PART OF A BRIDGE NEAR ERIE.  WATER WAS UP TO 18 INCHES
        DEEP IN WESTMINSTER.  WIND GUSTS TO 58 MPH WERE REPORTED AT
        STAPLETON INTERNATIONAL AIRPORT WHERE 1/4 INCH HAIL FELL...
        AND HEAVY THUNDERSTORM RAINFALL TOTALED 0.82 INCHES...BRIEFLY
        REDUCING THE VISIBILITY TO 1 1/4 MILES.  ESTIMATES OF TOTAL
        DAMAGE FROM THESE STORMS WOULD EXCEED 7 MILLION DOLLARS.
      IN 1994...HAIL UP TO 1 INCH IN DIAMETER FELL OVER SOUTH DENVER
        AND LITTLETON.
      IN 1997...TWO SHORT LIVED-TORNADOES FORMED NEAR BENNETT...BUT
        DID NO REPORTED DAMAGE.
      IN 2002...STRONG WINDS FROM THE OUTFLOW OF DISSIPATING SHOWERS
        DEVELOPED TO THE EAST OF DENVER.  NEAR STRASBURG...A SPOTTER
        RECORDED A WIND GUST TO 58 MPH.
1-2   IN 2002...UNUSUALLY VERY WARM WEATHER FOR SO EARLY IN JUNE
        RESULTED IN TWO TEMPERATURE RECORDS.  MAXIMUM TEMPERATURES
        OF 96 DEGREES ON THE 1ST AND 93 DEGREES ON THE 2ND WERE
        RECORD HIGHS FOR EACH DATE...RESPECTIVELY.
1-4   IN 1977...UNUSUALLY WARM WEATHER FOR THIS EARLY IN JUNE
        RESULTED IN 3 MAXIMUM TEMPERATURE RECORDS BEING EQUALED
        AT THE TIME:  88 DEGREES ON THE 1ST...90 DEGREES ON THE 2ND...
        AND 93 DEGREES ON THE 4TH.  MAXIMUM OF 91 DEGREES ON THE
        3RD WAS NOT A RECORD.
1-30  IN 2012...IT WAS THE HOTTEST JUNE IN DENVER SINCE WEATHER
        RECORDS BEGAN BACK IN 1872. THE AVERAGE TEMPERATURE FOR
        THE MONTH WAS 75.0 DEGREES WHICH WAS 7.6 DEGREES ABOVE
        NORMAL.  THERE WERE A TOTAL OF SEVENTEEN 90 DEGREE DAYS IN
        THE MONTH OF JUNE. THE HIGHLIGHT OF RECORD SETTING MONTH
        WAS A STRETCH OF FIVE CONSECUTIVE 100 DEGREE DAYS FROM THE
        22ND TO THE 26TH. THIS WAS ONLY THE THIRD TIME IN DENVER
        WEATHER HISTORY IN WHICH THIS HAPPENED. TWO OF THE HIGH
        TEMPERATURES DURING THE STRETCH PEAKED AT 105 DEGREES...
        WHICH SET THE ALL TIME RECORD FOR THE MONTH OF JUNE AND
        TIED THE ALL TIME MAXIMUM TEMPERATURE FOR DENVER.
2    IN 1914...FLOODING OCCURRED ON BOULDER CREEK WHEN HEAVY RAINS
        ADDED TO HEAVY SNOWMELT RUNOFF.  FLOODING DAMAGED THE WATER
        SUPPLY SYSTEM FROM THE MOUNTAINS INTO BOULDER AND DESTROYED
        ROADS AND BRIDGES IN THE CANYONS ABOVE BOULDER.  THE
        FLOODING IN CENTRAL BOULDER WAS DESCRIBED AS THE WORST
        SINCE THE TRAGIC FLOOD OF MAY 29TH THROUGH JUNE 3RD IN
        1894.  HOWEVER...THERE WAS NO REPORTED LOSS OF LIFE.  THE
        FLOOD WATERS ALSO INUNDATED PASTURE LAND TO THE EAST OF
        THE TOWN.
      IN 1951...THE LOWEST RECORDED TEMPERATURE IN JUNE...30 DEGREES...
        OCCURRED. THE UNUSUALLY COLD WEATHER WAS ACCOMPANIED BY
        0.3 INCH OF SNOWFALL.  PRECIPITATION...BOTH RAIN AND
        MELTED SNOW...TOTALED 0.30 INCH.
      IN 1966...MICROBURST WINDS GUSTED TO 51 MPH AT STAPLETON
        INTERNATIONAL AIRPORT.
      IN 1981...A SEVERE THUNDERSTORM ROARED THROUGH METRO DENVER...
        DUMPING 2.00 INCHES OF RAIN IN AS LITTLE AS 20 MINUTES AND
        BOMBING MANY AREAS WITH HAIL TO 1 3/4 INCHES IN DIAMETER.
        THE HEAVY RAIN CAUSED LOCAL FLOODING WITH UP TO 3 FEET OF
        WATER IN SOME STREETS IN NORTHWEST METRO DENVER.  PART
        OF A STREET WAS WASHED OUT IN THORNTON.  LIGHTNING STRIKES
        STARTED A FIRE AND CAUSED A POWER OUTAGE JUST NORTH OF
        DENVER.  LIGHTNING ALSO STRUCK A BARN WHICH BURNED TO THE
        GROUND IN BRIGHTON.  NUMEROUS CARS SUSTAINED MINOR HAIL
        DAMAGE.  A TORNADO WAS SPOTTED 4 MILES NORTHEAST OF THE
        ROCKY MOUNTAIN ARSENAL...BUT CAUSED NO DAMAGE.
      IN 1982...SEVERE THUNDERSTORMS PRODUCED LARGE HAIL ACROSS
        METRO DENVER.  HAIL TO 3/4 INCH IN DIAMETER WAS REPORTED IN
        LOUISVILLE AND NORTHEAST DENVER.  GOLF BALL SIZE HAIL FELL
        NEAR STRASBURG WHERE TWO TORNADOES WERE ALSO SIGHTED.
      IN 1983...A TORNADO TOUCHED DOWN 5 MILES SOUTH OF BENNETT.  IT
        DESTROYED AN OUTBUILDING AND DID EXTENSIVE DAMAGE TO
        GREYHOUND DOG SHELTERS.  GOLF BALL SIZE HAIL FELL NEAR THE
        TORNADO...DESTROYING SOME HAY.
      IN 1985...3/4 INCH HAIL FELL IN SOUTHWEST METRO DENVER.
      IN 1989...LARGE HAIL FELL OVER EASTERN AND CENTRAL DENVER.  A
        FEW STONES WERE AS LARGE AS BASEBALLS...AND MANY RANGED FROM
        3/4 INCH TO GOLF BALL SIZE.  THE HAIL PILED UP 2 TO 4 INCHES
        DEEP IN SOME AREAS.  HAIL TO 3/4 INCH FELL AT BUCKLEY FIELD
        IN AURORA...AND 7/8 INCH HAIL FELL JUST EAST OF AURORA.  A
        HOME IN LOUISVILLE WAS STRUCK BY LIGHTNING AND WAS 30
        PERCENT DESTROYED BY THE ENSUING FIRE.
      IN 1991...STRONG THUNDERSTORM WINDS IN ARAPAHOE COUNTY...14
        MILES SOUTHEAST OF STAPLETON INTERNATIONAL AIRPORT...DAMAGED
        THE ROOF OF A HOME AND A RADIO ANTENNA.  A FUNNEL CLOUD...
        4 MILES NORTHEAST OF STAPLETON INTERNATIONAL AIRPORT...WAS
        SIGHTED FOR 11 MINUTES BY NATIONAL WEATHER SERVICE
        OBSERVERS.
      IN 1993...A TORNADO TOUCHED DOWN BRIEFLY IN SOUTH DENVER...
        DESTROYING THE 4-INCH THICK CONCRETE ROOF OF A BUILDING AND
        CAUSING ABOUT 20 THOUSAND DOLLARS IN DAMAGE.  THE TWISTER
        ALSO PICKED UP A TRASH DUMPSTER AND DROPPED IT ONTO A CAR
        30 FEET AWAY...CAUSING AN ESTIMATED 3 THOUSAND DOLLARS IN
        DAMAGE.  HAIL UP TO AN INCH IN DIAMETER FELL IN AURORA...
        CONIFER...AND BENNETT.  TWO FUNNEL CLOUDS WERE SPOTTED NEAR
        DECKERS.  A FUNNEL CLOUD WAS SIGHTED FOR 19 MINUTES BY
        NATIONAL WEATHER SERVICE OBSERVERS TO THE SOUTHWEST OF
        STAPLETON INTERNATIONAL AIRPORT.
      IN 1994...LIGHTNING STRUCK TWO HOMES IN DENVER...STARTING
        FIRES WHICH CAUSED CONSIDERABLE DAMAGE TO BOTH.  HAIL TO
        3/4 INCH IN DIAMETER FELL IN GOLDEN.
      IN 1995...LIGHTNING STRUCK A HOUSE IN NEDERLAND...CAUSING A
        FIRE THAT WAS DOUSED BY SUBSEQUENT RAINFALL.  A PORTION
        OF THE ROOF AND WALL WAS DAMAGED.  THE STORM ALSO LEFT
        MOST OF NEDERLAND WITHOUT POWER FOR TWO HOURS.  LIGHTNING
        ALSO STRUCK A HIGH CHIMNEY OF AN ELEMENTARY SCHOOL IN WEST
        DENVER.  THE JOLT SPRAYED BRICKS AROUND THE SCHOOL YARD AND
        PARKING LOT.  TWENTY STUDENTS AND TEACHERS WERE IN THE
        SCHOOL BUILDING AT THE TIME...BUT ALL ESCAPED WITHOUT
        INJURY.  A FUNNEL CLOUD WAS SIGHTED OVER FORT LUPTON...AND
        3/4 INCH HAIL FELL IN LAFAYETTE.
      IN 2003...SEVERE THUNDERSTORMS PRODUCED STRONG WINDS AND
        LARGE HAIL.  HAIL AS LARGE AS 1 1/2 INCHES IN DIAMETER FELL
        NEAR PARKER.  ESTIMATED WIND GUSTS TO 70 MPH OCCURRED
        NEAR PARKER AND NEAR DENVER INTERNATIONAL AIRPORT WHERE
        THUNDERSTORM WIND GUSTS TO 52 MPH WERE RECORDED.  WIND
        GUSTS TO 60 MPH WERE ESTIMATED NEAR BENNETT.
      IN 2005...A SEVERE THUNDERSTORM PRODUCED HAIL AS LARGE AS
        1 INCH IN DIAMETER IN THE CITY OF DENVER.  A TORNADO
        WAS SIGHTED NEAR BENNETT ALONG WITH 3/4 INCH HAIL.
      IN 2008...SEVERE THUNDERSTORMS PRODUCED LARGE HAIL OVER
        WESTERN ARAPAHOE...NORTHERN DENVER AND SOUTHERN WELD
        COUNTIES.  HAIL...2 INCHES IN DIAMETER...WAS OBSERVED NEAR
        BRIGHTON; WITH HAIL TO 1 1/2 INCHES IN DIAMETER...5 MILES
        EAST OF PROSPECT.  HAIL TO ONE INCH IN DIAMETER WAS
        OBSERVED NEAR BUCKLEY FIELD...FREDERICK AND DENVER.
      IN 2012...SEVERE THUNDERSTORM PRODUCED DAMAGING THUNDERSTORM
        WINDS.  PEAK WIND GUSTS INCLUDED:  82 MPH NEAR STRASBURG...
        61 MPH AT BUCKLEY FIELD...60 MPH NEAR BYERS AND SOUTHWEST
        DENVER...58 MPH NEAR WATKINS AND 52 MPH AT DENVER
        INTERNATIONAL AIRPORT.  THE MICROBURST WINDS CAUSED
        EXTENSIVE TREE AND ROOF DAMAGE.  IN ADDITION...HAIL UP TO
        1 INCH IN DIAMETER WAS REPORTED 3 MILES EAST-SOUTHEAST OF
        PARKER.
2-4   IN 1989...HEAVY RAIN DRENCHED METRO DENVER WITH THE GREATEST
        AMOUNTS RECORDED ON THE 3RD.  TOTAL RAINFALL RANGED FROM
        1 1/2 TO 3 INCHES.  ROADS WERE WASHED OUT IN BOULDER COUNTY...
        AND FLOODED BASEMENTS CAUSED WATER DAMAGE TO HOUSES IN THE
        GUNBARREL SECTION OF BOULDER.  IN SUBURBAN DENVER...HEAVY
        RAIN CAUSED MINOR FLOODING ALONG LENA GULCH IN JEFFERSON
        COUNTY WHERE TWO MOBILE HOME PARKS WERE EVACUATED.
        RAINFALL TOTALED 1.66 INCHES AT STAPLETON INTERNATIONAL
        AIRPORT.
2-7   IN 1921...HEAVY RAINFALL FOR NEARLY A WEEK...ON TOP OF STREAMS
        ALREADY SWOLLEN BY MOUNTAIN SNOWMELT...PRODUCED WIDESPREAD
        FLOODING OVER THE SOUTH PLATTE RIVER BASIN...INCLUDING THE
        TRIBUTARIES THROUGH THE CANYONS TO THE WEST AND SOUTHWEST
        OF DENVER.  HEAVY RAINFALL OVER THE 6-DAY PERIOD TOTALED
        3.36 INCHES IN BOULDER...4.98 INCHES IN MORRISON...4.27 INCHES
        IN CASTLE ROCK...AND 2.94 INCHES IN THE CITY OF DENVER.
        RAINFALL AMOUNTS IN THE FOOTHILLS WERE ESTIMATED BETWEEN
        3 AND 6 INCHES.  THE NARROW-GAGE TRACKS OF THE COLORADO AND
        SOUTHERN RAILROAD WERE DESTROYED IN THE PLATTE CANYON.  FROM
        THE MOUTH OF THE CANYON THROUGH THE CITY TO NEAR BRIGHTON...
        THE RIVER SPREAD FROM 1/2 TO NEARLY 1 1/2 MILES WIDE...
        FLOODING FARM AND PASTURE LAND AND DESTROYING OR DAMAGING
        MANY BRIDGES.  IN THE CITY...MANY BUSINESSES ALONG WITH AS
        MANY AS 500 HOMES WERE INUNDATED...FORCING THEIR EVACUATION.
        BRIDGES WERE SWEPT AWAY.  THE HIGH WATERS FLOODED THE RAIL
        YARDS AND STOCK YARDS IN LOWER DOWNTOWN...CLOSING THREE
        ADJACENT PACKING HOUSES.  THE HEAVY RAINS ALSO CAUSED
        FLOODING ON BOULDER CREEK IN BOULDER ON THE 6TH.
3     IN 1951...A TRACE OF SNOW FELL AT STAPLETON AIRPORT.
      IN 1961...TORRENTIAL RAINS FELL 10 TO 30 MILES NORTH OF
        DENVER...CAUSING FLOODING IN THE TOWN OF FREDERICK.  THE
        RUSH OF WATER BROKE THROUGH AND OVER A RETAINING DIKE
        SENDING A 5-FOOT WALL OF WATER INTO THE TOWN...FLOODING
        HOMES AND DAMAGING SEWER LINES...ROADS...AND STREETS.
        GOLF BALL SIZE HAIL FELL IN DERBY...WEST DENVER...AND
        LAKEWOOD...CAUSING MORE THAN ONE MILLION DOLLARS IN DAMAGE.
      IN 1981...SEVERE THUNDERSTORMS PRODUCED TORNADOES OVER METRO
        DENVER.  THE FIRST TORNADO TOUCHED DOWN AT THE INTERSECTION
        OF ALAMEDA AVE. AND SHERIDAN BLVD.  THE TWISTER MOVED NORTH
        ALONG SHERIDAN BLVD....DAMAGING BUSINESSES...APARTMENT
        BUILDINGS...HOMES...AND VEHICLES.  OVER TEN HOMES WERE
        UNROOFED.  THE ROOF OF ONE LANDED IN THE MIDDLE OF A
        NEIGHBORHOOD PARK.  AT LEAST 10 MOBILE HOMES WERE WRECKED.
        THE TORNADO CURVED TO THE NORTHEAST INTO NORTHWEST DENVER...
        HOPPING UP AND DOWN IN SEVERAL PLACES.  VERY STRONG WINDS
        OUTSIDE THE ACTUAL FUNNEL CAUSED 20 TO 30 THOUSAND DOLLARS
        IN DAMAGE IN DOWNTOWN DENVER.  THE THIRD FLOOR OF ONE OLD
        BUILDING WAS DEMOLISHED.  NO MAJOR INJURIES WERE REPORTED
        FROM THE TORNADO...ALTHOUGH SEVERAL PEOPLE WERE HURT
        SLIGHTLY IN TRAFFIC ACCIDENTS ON SHERIDAN BLVD. IN THE
        CONFUSION CAUSED BY THE STORM.  DAMAGE IN LAKEWOOD ALONE
        WAS ESTIMATED AT 200 THOUSAND DOLLARS.  AT THE SAME TIME...
        THE WORST TORNADO TO EVER HIT METRO DENVER STRUCK THORNTON.
        COMING FROM THE SAME THUNDERSTORM THAT SPAWNED THE DENVER
        TWISTER...THE THORNTON TORNADO TORE A SWATH THROUGH THE
        HEART OF THE CITY.  87 HOMES WERE DESTROYED...110 OTHERS
        DAMAGED AT LEAST MODERATELY.  IN ALL...600 HOMES IN A 100
        BLOCK AREA SUSTAINED SOME DAMAGE.  THE TWISTER ALSO HIT
        SHOPPING CENTERS...SEVERAL RESTAURANTS...AND OTHER BUILDINGS.
        SEVEN OF THE 42 INJURED WERE CONSIDERED SERIOUS.  THE STORM
        WAS STRONG ENOUGH TO SNAP LAMP POSTS IN HALF AND DRIVE A 6-
        INCH SLAB OF WOOD 2 FEET INTO THE GROUND.  DAMAGE WAS
        ESTIMATED AT UP TO 50 MILLION DOLLARS.  THE SAME STORM THAT
        STRUCK THORNTON PRODUCED ANOTHER DAMAGING TORNADO THAT
        TOUCHED DOWN IN THE NORTHWEST SECTION OF FORT LUPTON.  THIS
        TWISTER DAMAGED 16 HOMES AND NUMEROUS CARS AND CAMPERS.
        TWO CHILDREN WERE SLIGHTLY INJURED WHEN THE CAR THEY WERE
        IN WAS KNOCKED ABOUT AND ITS WINDOWS SHATTERED BY THE
        STORM.  THE TWISTER ALSO DAMAGED TWO COMMERCIAL
        BUILDINGS.  DAMAGE WAS VERY SPOTTY...AND OBSERVERS SAID
        THE STORM HOPPED UP AND DOWN AT LEAST 3 TIMES.  DOLLAR
        DAMAGE WAS ESTIMATED AT 500 THOUSAND DOLLARS.  THE
        THUNDERSTORM COMPLEX THAT PRODUCED 3 DAMAGING TORNADOES
        ALSO DROPPED LARGE HAIL WHICH DAMAGED MANY CARS OVER
        NORTHWEST DENVER.  ONE TO 2 INCHES OF RAIN FELL IN LESS
        THAN AN HOUR...FLOODING A MOBILE HOME PARK WITH 3 TO 4 FEET
        OF WATER ON THE NORTHWEST EDGE OF DENVER.  THE HIGH WATER
        DAMAGED ABOUT HALF OF THE 392 HOMES IN THE PARK.  LOCAL
        FLOODING WAS ALSO REPORTED IN OTHER AREAS ACROSS METRO
        DENVER.  A TORNADO WAS ALSO SIGHTED NEAR FRANKTOWN...BUT
        CAUSED NO DAMAGE.  A THUNDERSTORM WIND GUST TO 52 MPH WAS
        RECORDED AT STAPLETON INTERNATIONAL AIRPORT.
      IN 1982...A COLD AIR FUNNEL CLOUD TOUCHED DOWN BRIEFLY IN
        SOUTHWEST DENVER.  TWO TORNADOES WERE BRIEFLY SPOTTED NEAR
        WATKINS.  NO DAMAGE WAS REPORTED FROM THESE STORMS.  A
        BRIEF FUNNEL CLOUD WAS SIGHTED BY NATIONAL WEATHER SERVICE
        OBSERVERS AT STAPLETON INTERNATIONAL AIRPORT WHERE 1/4 INCH
        HAIL FELL.
      IN 1984...THERE WERE SEVERAL SIGHTINGS OF TORNADOES AROUND
        PARKER.  NO DAMAGE WAS REPORTED.
      IN 1985...A TORNADO JUST SOUTHEAST OF AURORA WAS SPOTTED BY A
        NATIONAL WEATHER SERVICE EMPLOYEE.  NO DAMAGE WAS REPORTED.
        SEVERE THUNDERSTORMS PUMMELED THE METRO AREA WITH HAIL.
        ONE INCH TO BASEBALL SIZE HAIL WAS REPORTED IN SOUTH
        LAKEWOOD...ONE INCH HAIL IN LITTLETON...3/4 INCH TO 1 INCH
        HAIL IN AURORA...AND GOLF BALL SIZE HAIL IN SOUTH DENVER.
      IN 1989...HAIL UP TO GOLF BALL SIZE FELL OVER ARVADA.  A GOLF
        COURSE HAD TO BE EVACUATED AS THE HAIL ACCUMULATED UP TO 3
        INCHES DEEP IN SOME PLACES.  ONE INCH DIAMETER HAIL FELL IN
        WEST DENVER AND WESTMINSTER.
      IN 1993...AN EARLY MORNING THUNDERSTORM PRODUCED LIGHTNING...
        WHICH CAUSED AN ATTIC FIRE AT A RESIDENCE IN NIWOT
        NORTHEAST OF BOULDER.  DAMAGE WAS ESTIMATED AT 40 THOUSAND
        DOLLARS.  NO ONE WAS INJURED.
      IN 1994...HAIL TO 1 1/2 INCH DIAMETER FELL JUST NORTHEAST OF
        BOULDER.  ONE INCH DIAMETER HAIL FELL IN GOLDEN.
        THUNDERSTORM WIND GUSTS TO 70 MPH WERE RECORDED IN ERIE.
      IN 1995...A TORNADO WAS SIGHTED OVER OPEN COUNTRY NEAR
        STRASBURG.  NO DAMAGE WAS REPORTED.  A FUNNEL CLOUD WAS
        SIGHTED 11 MILES EAST OF AURORA WHERE 3/4 INCH HAIL FELL.
      IN 2001...SEVERE THUNDERSTORMS PRODUCED LARGE HAIL OVER EAST
        AND SOUTHEAST METRO DENVER.  HAIL AS LARGE AS 1 3/4 INCHES
        IN DIAMETER FELL AT CENTENNIAL AIRPORT WITH 1 1/2 INCH
        HAIL NEAR BUCKLEY FIELD...1 1/4 INCH HAIL IN PARKER...1 INCH
        HAIL NEAR ELIZABETH...7/8 INCH HAIL AT CHERRY CREEK
        RESERVOIR...AND 3/4 INCH HAIL 20 MILES NORTH OF KIOWA IN
        ELBERT COUNTY.
      IN 2002...SEVERE THUNDERSTORMS DUMPED LARGE HAIL ACROSS METRO
        DENVER.  HAIL TO 1 3/4 INCHES IN DIAMETER FELL OVER
        SOUTHEAST DENVER AND 4 MILES NORTH OF AURORA.  HAIL TO
        1 1/4 INCHES PELTED PARKER.  ONE INCH HAIL WAS MEASURED
        NEAR FT. LUPTON...AND 3/4 INCH HAIL FELL 9 MILES SOUTHEAST
        OF BUCKLEY FIELD...NEAR STRASBURG...AND AT THE SITE OF THE
        FORMER STAPLETON INTERNATIONAL AIRPORT.
      IN 2005...THUNDERSTORMS PRODUCING HEAVY RAIN AND HAIL CAUSED
        FLASH FLOODING OVER PARTS OF SOUTHEAST METRO DENVER.
        PEOPLE BECAME TRAPPED IN THEIR VEHICLES BY THE HIGH WATER...
        AND NUMEROUS WATER RESCUES WERE REQUIRED.  THE HARDEST HIT
        AREAS INCLUDED THE VICINITY OF I-25 AND ALAMEDA AVENUE...AS
        WELL AS THE INTERSECTION OF YALE AVENUE AND QUEBEC STREET.
        SEVERAL BASEMENTS WERE FLOODED ALONG EASTMAN PLACE.
        SEVERE THUNDERSTORMS BROUGHT HEAVY RAIN AND HAIL TO
        EASTERN CENTENNIAL AND SOUTHEASTERN AURORA.  UP TO 3 FEET
        OF STANDING WATER WAS REPORTED ON EAST ORCHARD ROAD WHERE
        SEVERAL MOTORISTS WERE STRANDED IN THEIR VEHICLES AND NEEDED
        TO BE RESCUED.  HAIL TO 3/4 INCH IN DIAMETER FELL IN THE
        AREA.  TEN VEHICLES WERE STRANDED ON GRAND AVENUE...AND MOST
        HAD TO BE TOWED ONCE THE FLOODWATERS RECEDED.  WATER WAS
        REPORTEDLY CHEST DEEP AT ONE LOCATION ON GIRARD AVENUE.
        HAIL AS LARGE AS 3/4 INCH IN DIAMETER ALSO WAS REPORTED IN
        LITTLETON...NEAR PARKER...AND NEAR BUCKLEY AIR FORCE BASE.
        HAIL TO 7/8 INCH WAS MEASURED NEAR SHERIDAN AND CHERRY
        CREEK RESERVOIR.
3-4   IN 1904...A THUNDERSTORM DURING THE EARLY MORNING OF THE
        3RD TURNED INTO WIDESPREAD GENERAL RAIN...WHICH CONTINUED
        INTO THE EARLY AFTERNOON OF THE 4TH.  RAINFALL TOTALED
        2.04 INCHES.
4     IN 1878...A "WATERSPOUT" OR CLOUDBURST OF RAIN WAS SIGHTED
        UP THE SOUTH PLATTE CANYON AT AROUND NOON.  THE RESULTING
        HIGH WATERS ON THE SOUTH PLATTE RIVER SLIGHTLY DAMAGED A
        RAILROAD BRIDGE IN THE CITY.
      IN 1937...A TRACE OF SNOW FELL IN DOWNTOWN DENVER WHERE
        RAINFALL TOTALED 0.25 INCH.  MINIMUM TEMPERATURE OF 34
        DEGREES WAS A RECORD LOW FOR THE DATE.  NORTHEAST WINDS
        WERE SUSTAINED TO 22 MPH.
      IN 1951...THE START OF THE SECOND SHORTEST SNOW-FREE PERIOD
        ON RECORD...109 DAYS...OCCURRED WITH THE LAST SNOW OF THE
        SEASON...A TRACE...ON THE 3RD.  THE FIRST SNOW OF THE NEXT
        SEASON OCCURRED ON SEPTEMBER 21ST WHEN 4.2 INCHES OF SNOW
        FELL AT STAPLETON AIRPORT.
      IN 1954...A MICROBURST PRODUCED BRIEF SUSTAINED WINDS OF 40
        MPH WITH GUSTS AS HIGH AS 64 MPH AT STAPLETON AIRPORT.
      IN 1956...THE FAILURE OF THE GEORGETOWN DAM CAUSED DOWNSTREAM
        FLOODING ON CLEAR CREEK AT IDAHO SPRINGS AND GOLDEN.
      IN 1976...FUNNEL CLOUDS WERE SIGHTED NEAR BRIGHTON...ERIE...AND
        DACONO...ALL NORTH OF DENVER.  A TORNADO TOUCHED DOWN BRIEFLY
        1 1/2 MILES EAST OF LAFAYETTE.  ANOTHER TORNADO TOUCHED DOWN
        BRIEFLY AT HYLAND HILLS GOLF COURSE IN WESTMINSTER.  NO
        DAMAGE WAS REPORTED.
      IN 1983...SEVERE THUNDERSTORMS DURING THE AFTERNOON PRODUCED
        3/4 INCH HAIL IN SOUTH DENVER...GOLF BALL SIZE HAIL 5 MILES
        WEST OF PARKER...1 1/4 INCH HAIL IN LITTLETON...1 1/2 INCH
        HAIL IN SOUTH AURORA.
      IN 2001...HAIL AS LARGE AS 1 INCH IN DIAMETER FELL 17 MILES
        NORTH OF BENNETT IN ADAMS COUNTY.
      IN 2005...SNOW WAS MIXED WITH RAIN FOR NEARLY AN HOUR AT
        DENVER INTERNATIONAL AIRPORT DURING MID TO LATE MORNING.
        THE TEMPERATURE AT THE TIME WAS 45 DEGREES.  PRECIPITATION
        TOTALED 0.36 INCH FOR THE DAY.  NORTHWEST WINDS GUSTED
        TO 37 MPH.
      IN 2008...A SEVERE THUNDERSTORM PRODUCED LARGE HAIL...UP TO
        1 3/4 INCHES IN DIAMETER IN ARVADA...A NORTHWEST SUBURB OF
        DENVER.  SEVERAL VEHICLES WERE DAMAGED.  IN ADDITION...A
        SEVERE THUNDERSTORMS PRODUCED HAIL TO 1 INCH IN DIAMETER...
        10 MILES NORTHEAST OF MANILA...EAST OF DENVER INTERNATIONAL
        AIRPORT.
4-5   IN 1965...LIGHTNING AND AN 18-HOUR RAIN STORM DAMAGED STREETS
        AND ROADS AND TELEPHONE AND POWER LINES ACROSS METRO
        DENVER.  PRECIPITATION TOTALED 2.77 INCHES AT STAPLETON
        INTERNATIONAL AIRPORT WHERE THE VISIBILITY WAS REDUCED TO
        3 MILES AT TIMES FROM PRE-FRONTAL THUNDERSTORMS AND HEAVY
        UPSLOPE RAINS.
      IN 1998...A LATE SEASON SNOW STORM STRUCK THE FRONT RANGE
        FOOTHILLS.  UP TO 5 INCHES OF SNOW FELL IN COAL CREEK
        CANYON.  LIGHT SNOW ALSO FELL OVER WESTERN SECTIONS OF
        METRO DENVER AND BRIEFLY AT DENVER INTERNATIONAL AIRPORT.
        SNOW COVERED THE GRASS AT THE DENVER FEDERAL CENTER IN
        LAKEWOOD BEFORE MELTING AROUND MID-MORNING ON THE 5TH.
        NO SNOW FELL AT THE SITE OF THE FORMER STAPLETON
        INTERNATIONAL AIRPORT.  SEVERAL TEMPERATURE RECORDS
        WERE SET.  HIGH TEMPERATURES OF 47 DEGREES ON THE 4TH
        AND 49 DEGREES ON THE 5TH WERE RECORD LOW MAXIMUMS FOR
        THEIR RESPECTIVE DATES.  MINIMUM TEMPERATURE OF 34 DEGREES
        ON BOTH THE 5TH AND 6TH WERE RECORD LOWS FOR THOSE DATES.
5     IN 1864...HIGH WATER ON THE WEST FORK OF CLEAR CREEK CAUSED
        A SMALL DAM NEAR EMPIRE TO FAIL...WHICH DESTROYED SEVERAL
        DOWNSTREAM BRIDGES.
      IN 1885...A WINDSTORM DURING THE AFTERNOON AND EARLY EVENING
        PRODUCED SOUTH TO SOUTHWEST WINDS AT SUSTAINED SPEEDS UP
        TO 42 MPH.
      IN 1937...A TRACE OF SNOW FELL IN DOWNTOWN DENVER.  THIS WAS
        THE LATEST SNOWFALL OF RECORD AT THE TIME.  LIGHT RAIN AND
        SNOW WERE MIXED AROUND MID-DAY.  PRECIPITATION TOTALED ONLY
        0.01 INCH.  NORTH WINDS WERE SUSTAINED TO 20 MPH.
      IN 1941...HAIL OF UNKNOWN SIZE FELL ON THE CITY.
      IN 1961...LIGHTNING STRUCK AND INJURED AN AIRMAN OUTSIDE A
        BASE CLASSROOM AT LOWRY AIR FORCE BASE.  FUNNEL CLOUDS WERE
        SIGHTED NEAR FREDERICK AND FIRESTONE NORTH OF DENVER.  THE
        ONE NEAR FREDERICK BRIEFLY TOUCHED DOWN IN AN OPEN FIELD
        BUT CAUSED NO DAMAGE.  HEAVY RAIN AND HAIL HIT THE FORT
        LUPTON AREA CAUSING DAMAGE TO CROPS.  HEAVY RAIN IN
        FREDERICK ADDED TO THE FLOOD DAMAGE OF THE 3RD.  A PILOT
        REPORTED A FUNNEL CLOUD THAT TOUCHED DOWN BRIEFLY AND
        THEN DISSIPATED SOUTH OF CASTLE ROCK.
      IN 1965...A LIGHTNING-CAUSED FIRE DESTROYED A MOUNTAIN HOME
        NEAR ROLLINSVILLE.
      IN 1988...A TORNADO TOUCHED DOWN 5 MILES EAST OF LAFAYETTE
        NEAR I-25 AND STAYED ON THE GROUND FOR 15 MINUTES.  THE
        TWISTER HIT A CAMPGROUND...DEMOLISHING ONE TRAILER AND
        DAMAGING SIX OTHERS...ALONG WITH 4 CARS.  THE ROPE-LIKE
        FUNNEL ALSO BLEW DOWN FENCES...SIGNS...AND ELECTRICAL BOXES.
        THE TWISTER MOVED A 1500-POUND HAY WAGON 150 FEET.  TOTAL
        DAMAGE TO THE CAMPGROUND WAS ESTIMATED AT 50 THOUSAND
        DOLLARS.  ANOTHER TORNADO TOUCHED DOWN BETWEEN BROOMFIELD
        AND LAFAYETTE...STAYING ON THE GROUND FOR ABOUT 20 MINUTES.
        THE TWISTER HIT A SUBDIVISION...UNROOFING ONE ABANDONED
        HOUSE AND CAUSING MINOR DAMAGE TO A DOZEN OTHERS.  A FOUR-
        CAR GARAGE AND THREE BARNS WERE DESTROYED.  AT ONE LOCATION
        A CHAIN LINK FENCE...A SATELLITE DISH...AND A SHED WERE
        DESTROYED...WHILE THE DECK AND GARAGE OF THE HOUSE WERE
        DAMAGED.  A GRAIN STORAGE TANK WAS MOVED 200 FEET.  THERE
        WERE REPORTS OF BOARDS BEING BLOWN THROUGH WALLS; ONE CAME
        THROUGH A KITCHEN.
      IN 1992...LIGHTNING STRUCK A 15-YEAR-OLD BOY...CAUSING MINOR
        INJURIES...IN ADAMS COUNTY 6 MILES NORTH-NORTHEAST OF
        STAPLETON INTERNATIONAL AIRPORT.  THUNDERSTORM WINDS GUSTED
        TO 63 MPH AT JEFFERSON COUNTY AIRPORT NEAR BROOMFIELD...TO 58
        MPH AT THE U.S. ATOMIC ENERGY COMMISSION`S FACILITY AT ROCKY
        FLATS...TO 58 MPH IN THORNTON...AND TO 48 MPH AT STAPLETON
        INTERNATIONAL AIRPORT WHERE 1/8 INCH DIAMETER HAIL FELL.
      IN 1996...STRONG MICROBURST WINDS UP TO 60 MPH DAMAGED SEVERAL
        TREES IN BOULDER...SNAPPING LARGE BRANCHES 1 TO 2 INCHES IN
        DIAMETER.
      IN 1997...A WOMAN WAS STRUCK BY LIGHTNING AS SHE WAS WALKING
        TO HER CAR IN NEDERLAND.  THE LIGHTNING BOLT APPARENTLY
        STRUCK A NEARBY POWER LINE AND ARCED INTO HER LEFT HAND.
        SHE RECEIVED MINOR INJURIES.
      IN 2014...SEVERE THUNDERSTORMS BROKE OUT ACROSS PARTS OF
        ARAPAHOE...DOUGLAS...ELBERT AND JEFFERSON COUNTIES...
        IMPACTING AREAS GENERALLY SOUTHWEST AND SOUTH OF DENVER.
        THE STORMS PRODUCED LARGE HAIL...FROM QUARTER TO GOLFBALL
        SIZE.
5-6   IN 1977...LIGHTNING CAUSED SEVERAL POWER OUTAGES AND MODERATE
        DAMAGE TO A RAILROAD BUILDING.
6     IN 1954...THUNDERSTORM WINDS AT SPEEDS OF 50 MPH WITH GUSTS AS
        HIGH AS 59 MPH BRIEFLY REDUCED THE VISIBILITY TO 1 MILE IN
        BLOWING DUST AT STAPLETON AIRPORT.
      IN 1967...THE PUBLIC REPORTED GOLF BALL TO 1 3/4 INCH DIAMETER
        HAIL IN THE CITY...3 MILES WEST-SOUTHWEST OF STAPLETON
        INTERNATIONAL AIRPORT.  THE AMOUNT OF DAMAGE WAS UNKNOWN.
        THUNDERSTORM WINDS GUSTED TO 46 MPH AT STAPLETON
        INTERNATIONAL AIRPORT.
      IN 1981...HAIL TO 3/4 INCH IN DIAMETER WAS REPORTED IN EAST
        DENVER.
      IN 1990...GOLF BALL SIZE HAIL WAS REPORTED NEAR STRASBURG ON
        I-70 EAST OF DENVER.
      IN 1991...A TORNADO WAS SPOTTED BY NATIONAL WEATHER SERVICE
        PERSONNEL AND WEATHER SPOTTERS...14 TO 17 MILES NORTHEAST OF
        STAPLETON INTERNATIONAL AIRPORT.  A FUNNEL CLOUD WAS SIGHTED
        OVER SOUTH AURORA JUST EAST OF BUCKLEY FIELD...AND A TORNADO
        WAS SPOTTED JUST EAST OF WATKINS.  NO DAMAGE WAS REPORTED.
        THUNDERSTORMS MOVED THROUGH AURORA AND DROPPED HAIL UP TO
        1 INCH IN DIAMETER.  THE STORMS ALSO PRODUCED HEAVY RAIN...
        UP TO 1 INCH IN 30 MINUTES...CAUSING FLOODING OF STREETS.
        WATER WAS REPORTED HOOD DEEP...STRANDING MOTORISTS.  WATER
        COVERED FIRE HYDRANTS AT SOME INTERSECTIONS.
      IN 1995...A WATERSPOUT SIGHTED OVER STANDLEY LAKE IN NORTHERN
        JEFFERSON COUNTY...QUICKLY DISSIPATED ONCE IT REACHED SHORE.
        A BRIEF TORNADO...WHICH WAS MOMENTARILY VISIBLE BY A DUST
        DEBRIS CLOUD ON THE GROUND...DAMAGED THE ROOF OF A HOUSE IN
        WESTMINSTER.  A FUNNEL CLOUD WAS SIGHTED JUST SOUTH OF
        LAFAYETTE.  HAIL FROM 3/4 TO 1 1/4 INCHES IN DIAMETER FELL
        OVER NORTH BOULDER.  THUNDERSTORM OUTFLOW PRODUCED NORTH
        WIND GUSTS TO 44 MPH AT DENVER INTERNATIONAL AIRPORT.
      IN 1997...A TORNADO TOUCHED DOWN NEAR BASELINE RESERVOIR JUST
        EAST OF BOULDER.  THE TORNADO STRUCK A HOME...TEARING OFF
        PART OF THE ROOF.  A STORAGE BUILDING NEARBY WAS NEARLY
        LEVELED AND 5 TREES WERE UPROOTED.  THE TWISTER THEN MOVED
        ONTO BASELINE RESERVOIR...FORMING A HUGE WATERSPOUT.  SEVERAL
        RECREATIONAL VEHICLES AND A BOAT DOCK WERE ALSO DAMAGED.
        A NEARLY STATIONARY LINE OF THUNDERSTORMS DUMPED 4.60 INCHES
        OF RAIN ON PORTIONS OF THORNTON.  EXTENSIVE FLOODING OF
        STREETS AND UNDERPASSES AND OTHER LOW LYING AREAS WAS
        REPORTED.  SEVERAL BUSINESSES WERE FLOODED AND BASEMENTS
        IN THE AREA WERE DAMAGED.  RAINFALL TOTALED 1.02 INCHES AT
        DENVER INTERNATIONAL AIRPORT AND 1.24 INCHES AT THE SITE OF
        THE FORMER STAPLETON INTERNATIONAL AIRPORT.  LARGE HAIL...UP
        TO 1 3/4 INCHES IN DIAMETER...FELL OVER THE CITY OF DENVER
        WITH 3/4 INCH HAIL MEASURED IN LITTLETON AND NEAR HENDERSON.
      IN 1999...HIGH WINDS DEVELOPED FOR A BRIEF TIME IN AND NEAR THE
        FOOTHILLS OF BOULDER.  THE GAMOW TOWER ON THE UNIVERSITY OF
        COLORADO CAMPUS RECORDED A WIND GUST TO 87 MPH.  WINDS
        PEAKED TO 71 MPH ATOP NIWOT RIDGE NEAR THE CONTINENTAL
        DIVIDE WEST OF BOULDER.
      IN 2003...A SMALL TORNADO TOUCHED DOWN NEAR STRASBURG...BUT DID
        NO DAMAGE.
      IN 2012...SEVERE THUNDERSTORMS BROKE LATE IN THE EVENING...
        STRIKING AREAS HARDEST FROM DENVER SOUTHWARD. LOCATIONS
        IMPACTED BY THE STORMS INCLUDED BUT WERE NOT LIMITED TO:
        AURORA...CASTLE ROCK...CENTENNIAL...HIGHLANDS RANCH...LONE TREE...
        PARKER AND SURREY RIDGE. THE STORMS PRODUCED A BARRAGE OF
        LARGE HAIL...DAMAGING STRAIGHT LINE WINDS...FLASH FLOODING
        AND SEVERAL SHORT LIVED TORNADOES. THE HAIL RANGED IN SIZE
        FROM 1 TO 2 INCHES IN DIAMETER...AND CAUSED EXTENSIVE DAMAGE
        TO HOMES AND AUTOMOBILES. THE HAIL INUNDATED THE ROADWAYS
        WITH SEVERAL INCHES OF HAIL IN DOUGLAS COUNTY. CONSEQUENTLY...
        SNOW PLOWS HAD TO BE CALLED OUT TO CLEAR THE ROADWAYS.
        THE COMBINATION OF TORRENTIAL HAIL AND HEAVY RAIN PRODUCED
        FLASH FLOODING IN PARTS OF ELBERT...DOUGLAS AND ARAPAHOE
        COUNTIES...AS THUNDERSTORMS BROUGHT UP TO 3.35 INCHES OF RAIN
        TO SOME AREAS WITHIN 90 MINUTES. IN AURORA...PICADILLY ROAD
        WAS CLOSED FROM FLOODING NORTH OF 6TH AVENUE. A WATER RESCUE
        TOOK PLACE ON SOUTH GUN CLUB ROAD IN ARAPAHOE COUNTY...WHERE
        FLOODWATERS WERE RUSHING TO DEPTH OF 3 FEET. FLASH FLOODING
        FORCED THE CLOSURE OF SEVERAL STREETS AND ROADS FROM PARKER
        SOUTH TO THE PINERY...WHERE THE FLOODWATERS INUNDATED THE
        ROADWAY WITH UP TO 2 FEET IN SEVERAL LOCATIONS.  AT
        CENTENNIAL AIRPORT...A HISTORIC B-17 FLYING FORTRESS SUFFERED
        EXTENSIVE DAMAGE AS HAILSTONES AS LARGE AS PING PONG BALLS
        STRUCK THE AIRCRAFT. ALTHOUGH THE AIRFRAME ITSELF DID NOT
        REQUIRE REPAIR...THE FABRIC-COVERED AILERONS AND ELEVATORS
        WERE EXTENSIVELY DAMAGED. THE HAIL CAME STRAIGHT DOWN AND
        PUNCHED HOLES IN THE FABRIC-COVERED CONTROL SURFACES. THE
        AIRCRAFT LANDED JUST HOURS BEFORE THE STORM HIT TO
        PARTICIPATE IN A WEEKEND TOUR STOP.  LIGHTNING ALSO STRUCK
        TWO HOMES...ONE IN LAKEWOOD AND THE OTHER IN PARKER.
        STRAIGHT LINE WINDS DOWNED TREES AND POWER LINES IN AURORA.
        AS A RESULT...SCATTERED ELECTRICAL OUTAGES AFFECTED AROUND
        FIVE THOUSAND RESIDENTS.  AT DENVER INTERNATIONAL AIRPORT...
        0.61 INCHES RAINFALL WAS RECORDED ALONG WITH A PEAK WIND
        GUST OF 41 MPH.
6-7   IN 2004...A BRIEF HOT SPELL PRODUCED 3 TEMPERATURE RECORDS.
        HIGH TEMPERATURES OF 95 DEGREES ON THE 6TH AND 98 DEGREES
        ON THE 7TH WERE RECORD MAXIMUM TEMPERATURES FOR THE DATES.
        LOW TEMPERATURE OF 68 DEGREES ON THE 7TH WAS A RECORD HIGH
        MINIMUM FOR THE DATE.
      IN 2007...AN UNUSUALLY STRONG STORM SYSTEM BROUGHT VERY STRONG
        WINDS TO THE FRONT RANGE FOOTHILLS AND URBAN CORRIDOR.
        PEAK GUSTS INCLUDED:  92 MPH AT BOULDER...85 MPH...2 MILES
        SOUTHWEST OF BOULDER...83 MPH...10 MILES SOUTH OF BOULDER AND
        55 MPH AT DENVER INTERNATIONAL AIRPORT.  HIGH WINDS FORCED
        THE CLOSURE OF MT. EVANS ROAD AND TRAIL RIDGE ROAD.  SEVERAL
        TREES WERE UPROOTED ACROSS THE URBAN CORRIDOR.  IN AURORA...
        THE DRIVER OF A CAR WAS INJURED WHEN SOME BUILDING MATERIAL
        BLEW OFF THE FITZSIMMONS COMPLEX.  THE DEBRIS LANDED ON THE
        CAR AND KNOCKED THE DRIVER UNCONCIOUS.  THE WIND FORCED THE
        CANCELLATION OF 60 FLIGHTS AT DENVER INTERNATIONAL AIRPORT.
        XCEL REPORTED OUTAGES IN BOULDER...DENVER...LAKEWOOD AND
        LONGMONT.
      IN 2012...SEVERE THUNDERSTORMS BROKE LATE IN THE EVENING...
        STRIKING AREAS HARDEST FROM DENVER SOUTHWARD. LOCATIONS
        IMPACTED BY THE STORMS INCLUDED BUT WERE NOT LIMITED TO:
        AURORA...CASTLE ROCK...CENTENNIAL...HIGHLANDS RANCH...LONE TREE...
        PARKER AND SURREY RIDGE. THE STORMS PRODUCED A BARRAGE OF
        LARGE HAIL...DAMAGING STRAIGHT LINE WINDS...FLASH FLOODING
        AND SEVERAL SHORT LIVED TORNADOES. THE HAIL RANGED IN SIZE
        FROM 1 TO 2 INCHES IN DIAMETER...AND CAUSED EXTENSIVE DAMAGE
        TO HOMES AND AUTOMOBILES. THE HAIL INUNDATED THE ROADWAYS
        WITH SEVERAL INCHES OF HAIL IN DOUGLAS COUNTY. CONSEQUENTLY...
        SNOW PLOWS HAD TO BE CALLED OUT TO CLEAR THE ROADWAYS.
        THE COMBINATION OF TORRENTIAL HAIL AND HEAVY RAIN PRODUCED
        FLASH FLOODING IN PARTS OF ELBERT...DOUGLAS AND ARAPAHOE
        COUNTIES...AS THUNDERSTORMS BROUGHT UP TO 3.35 INCHES OF RAIN
        TO SOME AREAS WITHIN 90 MINUTES. IN AURORA...PICADILLY ROAD
        WAS CLOSED FROM FLOODING NORTH OF 6TH AVENUE. A WATER RESCUE
        TOOK PLACE ON SOUTH GUN CLUB ROAD IN ARAPAHOE COUNTY...WHERE
        FLOODWATERS WERE RUSHING TO DEPTH OF 3 FEET. FLASH FLOODING
        FORCED THE CLOSURE OF SEVERAL STREETS AND ROADS FROM PARKER
        SOUTH TO THE PINERY...WHERE THE FLOODWATERS INUNDATED THE
        ROADWAY WITH UP TO 2 FEET IN SEVERAL LOCATIONS.  AT
        CENTENNIAL AIRPORT...A HISTORIC B-17 FLYING FORTRESS SUFFERED
        EXTENSIVE DAMAGE AS HAILSTONES AS LARGE AS PING PONG BALLS
        STRUCK THE AIRCRAFT. ALTHOUGH THE AIRFRAME ITSELF DID NOT
        REQUIRE REPAIR...THE FABRIC-COVERED AILERONS AND ELEVATORS
        WERE EXTENSIVELY DAMAGED. THE HAIL CAME STRAIGHT DOWN AND
        PUNCHED HOLES IN THE FABRIC-COVERED CONTROL SURFACES. THE
        AIRCRAFT LANDED JUST HOURS BEFORE THE STORM HIT TO
        PARTICIPATE IN A WEEKEND TOUR STOP.  LIGHTNING ALSO STRUCK
        TWO HOMES...ONE IN LAKEWOOD AND THE OTHER IN PARKER.
        STRAIGHT LINE WINDS DOWNED TREES AND POWER LINES IN AURORA.
        AS A RESULT...SCATTERED ELECTRICAL OUTAGES AFFECTED AROUND
        FIVE THOUSAND RESIDENTS.  AT DENVER INTERNATIONAL AIRPORT...
        0.61 INCHES RAINFALL WAS RECORDED ALONG WITH A PEAK WIND
        GUST OF 41 MPH.

$$


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