033
NOUS45 KBOU 140045
PNSBOU
COZ030>051-142300-
PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
645 PM MDT SAT JUN 13 2026
..THIS WEEK IN METRO DENVER WEATHER HISTORY
11-14 IN 1999...DAMAGE FROM SEVERAL HAILSTORMS...FROM THE 11TH TO
THE 14TH...IN AND NEAR METRO DENVER TOTALED 35 MILLION
DOLLARS. ABOUT 17.5 MILLION DOLLARS WAS FROM AUTOMOBILE
CLAIMS WITH ANOTHER 17.5 MILLION IN HOMEOWNER CLAIMS. THE
AREAS HARDEST HIT BY THE STORMS INCLUDED CASTLE ROCK...
COMMERCE CITY...EVERGREEN...AND GOLDEN.
12-17 IN 2000...TWO LARGE WILDFIRES DEVELOPED IN THE FRONT RANGE
FOOTHILLS ON THE 12TH AND CONTINUED THROUGH THE 17TH...AS
CARELESS CAMPERS AND VERY DRY CONDITIONS PROVED TO BE A
DANGEROUS COMBINATION. STRONG WINDS GUSTING IN EXCESS OF
60 MPH ON THE 13TH FANNED THE FLAMES...SPREADING BOTH
WILDFIRES OUT OF CONTROL. WINDS GUSTED TO 78 MPH ATOP
NIWOT RIDGE NEAR THE CONTINENTAL DIVIDE WEST OF BOULDER.
THE HI MEADOWS WILDFIRE...ABOUT 35 MILES SOUTHWEST OF DENVER...
CONSUMED NEARLY 11 THOUSAND ACRES AND 80 STRUCTURES...MOSTLY
HIGH PRICED HOMES. THE BOBCAT WILDFIRE...LOCATED ABOUT 12
MILES SOUTHWEST OF FORT COLLINS...CONSUMED NEARLY 11
THOUSAND ACRES AND 22 STRUCTURES. LATE ON THE 16TH...A
STRONG COLD FRONT MOVED SOUTH OVER THE GREAT PLAINS INTO
NORTHEASTERN COLORADO. LOW LEVEL UPSLOPE DEVELOPED IN
THE WAKE OF THE FRONT...PRODUCING 2 TO 4 INCHES OF SNOWFALL
OVERNIGHT AT ELEVATIONS ABOVE 8 THOUSAND FEET.
FIREFIGHTERS WERE ABLE TO CONTAIN BOTH FIRES SHORTLY
THEREAFTER.
13-14 IN 2006...THE HIGH TEMPERATURE OF 99 DEGREES ON THE 13TH
EQUALED THE RECORD MAXIMUM TEMPERATURE FOR THE DATE FIRST
SET IN 1994. THE HIGH TEMPERATURE OF 102 DEGREES ON THE
14TH WAS A NEW RECORD MAXIMUM TEMPERATURE FOR THE DATE.
14 IN 1877...AN EVENING THUNDERSTORM PRODUCED LIGHTNING WHICH
STRUCK SEVERAL HOUSES AND KILLED A COW IN THE BOTTOM LAND
OF THE SOUTH PLATTE RIVER
IN 1886...HAIL AS LARGE AS 3/4 INCH IN DIAMETER FELL IN THE
CITY. PRECIPITATION WAS ONLY 0.10 INCH.
IN 1887...SOUTH WINDS WERE SUSTAINED TO 41 MPH.
IN 1900...A THUNDERSTORM PRODUCED NORTHWEST WINDS TO 51 MPH
WITH GUSTS TO 61 MPH...BUT ONLY A TRACE OF RAIN.
IN 1923...A SEVERE THUNDERSTORM PELTED THE CITY WITH HAIL.
THE STONES RANGED IN DIAMETER FROM 0.2 TO 0.8 INCH.
GARDENS AND GREENHOUSES SUFFERED CONSIDERABLE DAMAGE.
RAINFALL WAS ONLY 0.14 INCH DOWNTOWN.
IN 1960...ONE WORKMAN WAS KILLED AND 4 OTHERS INJURED IN
LAKEWOOD WHEN A PARTLY BUILT APARTMENT BUILDING COLLAPSED
IN STRONG WINDS. MICROBURST WIND GUSTS TO 54 MPH CAUSED
SOME BLOWING DUST AT STAPLETON AIRPORT.
IN 1967...TORNADOES TOUCHED DOWN BRIEFLY 3 MILES WEST OF
FRANKTOWN AND 4 MILES NORTHEAST OF PARKER. NO DAMAGE WAS
REPORTED. NUMEROUS FUNNEL CLOUDS WERE REPORTED OVER SOUTH
METRO DENVER...ONE 5 MILES SOUTH OF DENVER...ONE 2 TO 3 MILES
NORTH OF CASTLE ROCK...AND TWO NEAR LITTLETON.
IN 1968...A MICROBURST WIND GUST TO 52 MPH WAS RECORDED AT
STAPLETON INTERNATIONAL AIRPORT.
IN 1972...1 3/4 INCH HAIL WAS REPORTED IN WHEAT RIDGE.
IN 1976...HIGH WINDS...UNUSUALLY STRONG FOR THIS LATE IN THE
SEASON...RAKED METRO DENVER. WIND GUSTS ESTIMATED TO 100
MPH TORE 24 BOATS FROM THEIR MOORINGS AND DAMAGED A TOTAL
OF 47 BOATS AT BOULDER RESERVOIR. WIND GUSTS TO 82 MPH
WERE RECORDED IN BOULDER. THE STRONG WINDS TOPPLED THE
WIND MAST AT A RADIO STATION IN BOULDER. AN AUTOMOBILE
WAS SMASHED BY A FALLEN TREE IN BOULDER. OTHER DAMAGE IN
BOULDER WAS MINOR...BUT POWER OUTAGES OCCURRED WHEN TREE
LIMBS FELL ON POWER LINES. AT JEFFERSON COUNTY AIRPORT
NEAR BROOMFIELD...WIND GUSTS TO 78 MPH WERE RECORDED WITH
87 MPH GUSTS CLOCKED AT ROCKY FLATS NUCLEAR PLANT SOUTH OF
BOULDER. WIND GUSTS TO 66 MPH WERE OBSERVED IN LITTLETON...
AND NORTHWEST WINDS GUSTED TO 46 MPH AT STAPLETON
INTERNATIONAL AIRPORT. THE STRONG WINDS COLLAPSED A BARN
NEAR ARVADA. SEVERAL HORSES RECEIVED MINOR INJURIES.
THIRTY TREES WERE UPROOTED OR BROKEN IN DENVER. FOUR MAJOR
POWER OUTAGES OCCURRED FROM WEST DENVER AND LAKEWOOD TO THE
FOOTHILLS.
IN 1982...THE WORST HAILSTORM IN 17 YEARS STRUCK COMMERCE
CITY. THE STORM LEFT 4 TO 8 INCHES OF HAIL ON THE GROUND.
A FEW OF THE STONES WERE AS LARGE AS GOLF BALLS. MANY
VEHICLES WERE DENTED...AND SOME WINDSHIELDS WERE SHATTERED.
ROOFS OF HOMES WERE DAMAGED. TOTAL DAMAGE WAS ESTIMATED
AT OVER ONE MILLION DOLLARS. HAIL TO 1 INCH IN DIAMETER
ALSO FELL IN LITTLETON. ONLY 1/4 INCH HAIL WAS MEASURED
AT STAPLETON INTERNATIONAL AIRPORT.
IN 1988...LIGHTNING RIPPED A SMALL HOLE IN THE ROOF OF A HOME
IN THE SOUTHERN PART OF BOULDER. THERE WERE SOME POWER
OUTAGES IN THE AREA.
IN 1992...AN OFF DUTY NATIONAL WEATHER SERVICE EMPLOYEE
REPORTED HAIL TO 1 INCH DIAMETER IN WESTMINSTER.
IN 1997...ONE INCH DIAMETER HAIL FELL IN BENNETT...AND 3/4
INCH HAIL WAS MEASURED IN LITTLETON.
IN 1999...HAIL AS LARGE AS 1 1/2 INCHES IN DIAMETER HIT AURORA.
LIGHTNING SPARKED TWO SMALL FIRES AT SEPARATE RESIDENCES
NEAR THE HIWAN COUNTRY CLUB IN EVERGREEN.
IN 2004...LIGHTNING SPARKED TWO SMALL FIRES NEAR JAMESTOWN.
ONE WAS IN GEER CANYON AND THE OTHER 7.5 MILES UP SUNSHINE
CANYON. BOTH WERE QUICKLY CONTAINED AND CAUSED NO DAMAGE
TO STRUCTURES IN THE AREA.
IN 2009...A COMPLEX OF SEVERE THUNDERSTORM PRODUCED LARGE HAIL
DAMAGING THUNDERSTORM AND FUNNEL CLOUDS ACROSS PARTS OF THE
URBAN CORRIDOR. THE LINE FORMED ALONG A BOUNDARY OVER THE
WESTERN SUBURBS OF DENVER THEN MOVED EAST. THE BOUNDARY
PRODUCED AT LEAST ONE WELL DEFINED FUNNEL CLOUD THAT COULD
BE OBSERVED BY STADIUM FULL OF BASEBALL FANS AT COORS
FIELD. LARGE HAIL...UP TO 1 3/4 INCHES IN DIAMETER...WAS
REPORTED IN ARVADA...BROOMFIELD...DENVER...FEDERAL HEIGHTS AND
NORTHGLENN. IN ADDITION...THE STORM PRODUCED PEAK WIND GUSTS
FROM 60 TO 74 MPH. AT DENVER INTERNATIONAL AIRPORT...A PEAK
WIND GUST TO 58 MPH WAS OBSERVED FROM THE WEST-NORTHWEST.
IN 2014...SEVERE THUNDERSTORMS BROKE OUT ACROSS THE URBAN
CORRIDOR. LARGE HAIL...RANGING IN SIZE FROM 1 TO 2 INCHES
IN DIAMETER...WAS OBSERVED. THE AREA EXTENDED FROM AROUND
ENGLEWOOD TO AURORA AND INCLUDED: BROOKRIDGE...CHERRY KNOLLS...
GREENWOOD VILLAGE AND SOUTH DENVER. AS MANY AS 212 THOUSAND
RESIDENCES WERE POTENTIALLY IMPACTED BY THE STORMS. THE HAIL
SHATTERED WINDSHIELDS AND DAMAGED VEHICLES.
15 IN 1907...SOUTH WINDS WERE SUSTAINED TO 40 MPH. THE WINDS
WERE STRONG ALL DAY.
IN 1908...THE HAIL STORM WAS UNUSUALLY SEVERE. HEAVY CLOUDS
MOVED OVER THE CITY FROM THE NORTH AND NORTHWEST...AND BY
LATE MORNING THE WEATHER HAD BECOME VERY THREATENING.
HEAVY RAIN WITH INTERMITTENT HAIL FROM PEA TO 3/4 INCH
IN DIAMETER FELL NEAR NOON. THE FALL OF RAIN AND HAIL
TOTALED 0.68 INCH OF PRECIPITATION WITH 0.35 INCH IN JUST
5 MINUTES. THE TEMPERATURE FELL FROM 71 DEGREES TO 51
DEGREES DURING THE STORM. THE HAIL DID CONSIDERABLE
DAMAGE TO TREES...GARDENS...AND HOT HOUSES. ON SIDEWALKS
WITH NORTHERN EXPOSURES...THE HAIL RANGED IN DEPTH FROM
2 TO 6 INCHES. WEST WINDS WERE SUSTAINED TO 29 MPH DURING
THE STORM.
IN 1956...STRONG SOUTHEAST WINDS RAKED METRO DENVER ALL DAY.
SUSTAINED WINDS AT 44 MPH WITH GUSTS AS HIGH AS 61 MPH WERE
RECORDED AT STAPLETON AIRPORT WHERE BLOWING DUST BRIEFLY
REDUCED THE VISIBILITY TO 2 MILES.
IN 1984...GOLF BALL SIZE HAIL PELTED SOUTHERN AND CENTRAL
AURORA. RAINFALL OF 2.06 INCHES OVER CENTRAL AURORA IN
JUST OVER AN HOUR PRODUCED LOCAL STREET FLOODING.
IN 1987...GOLF BALL SIZE HAIL FELL IN THE SOUTHERN PART OF
LAKEWOOD.
IN 1988...SEVERAL TORNADOES DEVELOPED ACROSS METRO DENVER.
ONE TORNADO TOUCHED DOWN JUST NORTHEAST OF THE ROCKY
MOUNTAIN ARSENAL. THE TWISTER MOVED VERY SLOWLY AND DID NO
DAMAGE...EXCEPT TO DEMOLISH A SMALL ELECTRICAL SUBSTATION...
EVEN THOUGH IT WAS ON THE GROUND FOR NEARLY 30 MINUTES.
LATER...ANOTHER TORNADO WAS SIGHTED EAST OF BRIGHTON ABOUT
2 MILES NORTH OF BARR LAKE. AN F2 TORNADO CUT A SWATH
THROUGH NORTHEAST DENVER. THE MAIN PATH WENT THROUGH A
THICKLY WOODED AREA FOR ABOUT 6 BLOCKS AND UPROOTED ABOUT
500 CITY OWNED TREES...MANY OF THEM LARGE ELMS 75 TO 100
YEARS OLD. HUNDREDS OF PRIVATELY OWNED TREES WERE ALSO
SUCKED FROM THE GROUND BY THE SLOW MOVING TWISTER...WHICH WAS
FILMED BY A NEWS TEAM IN A HELICOPTER AS IT UPROOTED TREES.
THE REPLACEMENT COST TO THE CITY OWNED TREES WAS ESTIMATED
AT 1.5 MILLION DOLLARS. THE TWISTER DID LITTLE DAMAGE TO
BUILDINGS. SOME HOMES SUFFERED ROOF AND CHIMNEY DAMAGE...A
GAS MAIN WAS RUPTURED...AND SOME CARS WERE DAMAGED BY
FALLING TREES. THE UPROOTED TREES ALSO CAUSED CURB AND
SIDEWALK DAMAGE AND CUT SOME ELECTRICAL WIRES. THE FUNNEL
CLOUD PASSED CLOSE TO STAPLETON INTERNATIONAL AIRPORT.
AIRCRAFT OPERATIONS WERE SHUT DOWN...AND THE TOWER WAS
EVACUATED. THE TORNADO WAS ON THE GROUND FOR ALMOST 25
MINUTES. AN F3 TORNADO CUT AN ERRATIC PATH THROUGH SOUTH
DENVER FOR ABOUT 25 MINUTES...CAUSING EXTENSIVE DAMAGE IN
AT LEAST 3 AREAS. THE TWISTER DAMAGED ABOUT 85 BUILDINGS...
20 SEVERELY; THE TOTAL LOSS WAS ESTIMATED AT 5 TO 10
MILLION DOLLARS. MANY CARS WERE SEVERELY DAMAGED; AT
LEAST 15 VEHICLES WERE OVERTURNED. ONE TRAILER WAS LIFTED
ONTO THE TOP OF A BUILDING THAT HAD JUST BEEN UNROOFED;
NUMEROUS ANTIQUE CARS INSIDE THE BUILDING WERE DAMAGED.
A FORD BRONCO WAS BLOWN OVER A CHURCH...AND LANDED 100 YARDS
AWAY. A METAL STORAGE SHED WAS DEPOSITED FAR ABOVE THE
GROUND IN SOME POWER LINES. THE TORNADO UPROOTED MANY
TREES ON A GOLF COURSE. NO ONE WAS SERIOUSLY HURT...ALTHOUGH
SEVEN PEOPLE SUFFERED MINOR INJURIES FROM FLYING DEBRIS.
A GOLFER WAS THROWN 40 FEET...BUT WAS NOT HURT; A MAN
CLINGING TO A TELEPHONE POLE WAS UNSCATHED...BUT LOST BOTH
SHOES...A SOCK...AND BUTTONS OFF HIS SHIRT. A WOMAN HOLDING
A BABY WAS SUCKED THROUGH A BROKEN CONVENIENCE STORE WINDOW...
BUT WAS UNHURT. A DOG...TETHERED TO THE GROUND BY ITS LEASH...
WAS SUSPENDED IN THE AIR BY THE TWISTER. UPROOTED TREES
CRUSHED CARS AND DAMAGED CURBS AND SIDEWALKS. PEOPLE IN
DOWNTOWN DENVER COULD SEE THREE TORNADOES OCCURRING
SIMULTANEOUSLY. HAIL AS LARGE AS 1 3/8 INCHES IN DIAMETER
FELL IN EXTREME SOUTHEAST AURORA.
IN 1997...A TORNADO TOUCHED DOWN BRIEFLY AT THE COLORADO
NATIONAL SPEEDWAY NEAR DACONO NORTH OF DENVER. THE
TORNADO RIPPED THROUGH THE SOUTH GRANDSTAND CAUSING AT
LEAST 50 THOUSAND DOLLARS IN DAMAGE TO A SHED...KIOSK...
BLEACHERS...AND SEVERAL CONCESSION STANDS.
IN 2004...A TORNADO TOUCHED DOWN BRIEFLY NEAR CASTLE ROCK
AND BLEW THE ROOF OFF A MACHINE SHOP. A TORNADO NEAR
ELIZABETH DESTROYED A BARN AND CAUSED ROOF DAMAGE TO A
HOME. TWO OTHER BARNS ON NEARBY PROPERTIES WERE DAMAGED
EXTENSIVELY. THE TWISTER ALSO CAUSED WIDESPREAD TREE
DAMAGE IN THE AREA. A TORNADO ALSO TOUCHED DOWN NEAR
BENNETT AND STRASBURG...BUT DID NO DAMAGE.
IN 2009...THUNDERSTORM WINDS KNOCKED A TREE ON TO TWO
VEHICLES IN BOULDER. ONE OF THE DRIVERS WAS INJURED
WHEN THE TREE SMASHED INTO THE WINDSHIELD OF HER CAR.
IN 2012...A SEVERE THUNDERSTORM PRODUCED HAIL FROM QUARTER TO
HALF DOLLAR SIZE NEAR LITTLETON AND HIGHLANDS RANCH. A
WEAK SHORT LIVED TORNADO (EF0) ALSO TOUCHED DOWN NEAR
BENNETT.
15-16 IN 1963...HEAVY RAIN AND HAIL RAVAGED METRO DENVER. IN
SOUTHEAST DENVER...HEAVY RAIN FLOODED HOMES AND STREETS.
HAIL TO A DEPTH OF 4 INCHES ON THE GROUND STRIPPED TREES
AND PLANTS AND DRIFTED TO DEPTHS OF 3 TO 4 FEET IN SOME
AREAS. FLOOD WATERS ON THE VALLEY HIGHWAY WERE 19 FEET
DEEP IN PLACES...TRAPPING MANY CARS. MANY CREEKS WERE
RUNNING OVER THEIR BANKS. ON THE 15TH...THE MAIN
THUNDERSTORM CELL PASSED OVER SOUTH DENVER...DUMPING AS
MUCH AS 4 INCHES OF RAIN IN 90 MINUTES. PRECIPITATION
AT STAPLETON AIRPORT TOTALED 0.91 INCH ON THE 15TH AND
1.31 INCHES ON THE 16TH. A FUNNEL CLOUD WAS SIGHTED
BRIEFLY 4 MILES TO THE SOUTH-SOUTHEAST OF STAPLETON
AIRPORT ON THE 15TH. DAMAGE FROM HAIL AND FLOODING
AMOUNTED TO NEAR A MILLION DOLLARS.
15-17 IN 2021...THE TEMPERATURE IN DENVER REACHED 100 DEGREES FOR
THREE CONSECUTIVE DAYS: 101...100...100 RESPECTIVELY. EACH
ESTABLISHED A NEW RECORD HIGH FOR THE DAY. IT WAS ALSO THE
EARLIEST OCCURRENCE OF SUCH A STREAK. A RECORD HIGH MINIMUM
OF 68 ALSO OCCURRED ON THE 17TH.
16 IN 1950...VERY HEAVY RAIN AND HAIL STORMS IN SOUTHWEST DENVER
CAUSED AN ESTIMATED 750 THOUSAND DOLLARS IN HAIL AND FLOOD
DAMAGE. THUNDERSTORMS PRODUCED 2.06 INCHES OF RAIN AT
STAPLETON AIRPORT WITH 2.23 INCHES OF RAIN MEASURED IN
DOWNTOWN DENVER.
IN 1965...A TORNADO...15 MILES SOUTH-SOUTHEAST OF DENVER...
TOUCHED DOWN AND DAMAGED TWO HOUSES IN NORTHERN DOUGLAS
COUNTY. THREE GOLFERS AT A COUNTRY CLUB AND A WOMEN WHO
LIVED NORTH OF CASTLE ROCK WERE INJURED BY FALLING
STRUCTURES.
IN 1983...A MICROBURST WIND GUST TO 54 MPH WAS RECORDED AT
STAPLETON INTERNATIONAL AIRPORT.
IN 1984...A TORNADO TOUCHED DOWN BRIEFLY IN PARKER. NO DAMAGE
WAS REPORTED.
IN 1986...LIGHTNING INJURED 5 PEOPLE JUST NORTH OF THE DENVER
CITY LIMITS IN ADAMS COUNTY. THE VICTIMS WERE MEMBERS OF
A DRUM AND BUGLE CORPS AND WERE STANDING NEAR A METAL
SCAFFOLD. HEAVY RAIN FROM THE STORM ALSO CAUSED STREET
FLOODING IN THE METRO AREA.
IN 1991...HAIL TO GOLF BALL SIZE FELL AT CONIFER.
IN 1992...A RARE MID-JUNE HIGH WIND EVENT WRECKED HAVOC
OVER METRO DENVER WHEN A PACIFIC COLD FRONT MOVED ACROSS
THE ROCKY MOUNTAINS. STRONG WINDS AT SPEEDS OF 40 TO 50
MPH WERE COMMON ALONG THE FRONT RANGE FOOTHILLS. WINDS
REACHING 107 MPH IN THE FOOTHILLS WEST OF DENVER AND 79 MPH
AT LONGMONT...CAUSED DAMAGE RANGING FROM TREES BEING TOPPLED
TO LARGE TRUCKS BEING ROLLED OVER. STRONG WINDS ESTIMATED
AT 75 MPH ROLLED A 35-FOOT TRUCK CARRYING BUILDING SUPPLIES
ON U.S. HIGHWAY 36 NORTH OF BOULDER. THE TRUCK DRIVER AND
A PASSENGER AS WELL AS THE DRIVER OF ANOTHER CAR WERE
SLIGHTLY INJURED. THE WINDS DOWNED POWER LINES. THE
GAMBLING TOWNS OF CENTRAL CITY AND BLACKHAWK WERE WITHOUT
POWER FOR A COUPLE OF HOURS. WEST WINDS REACHED 43 MPH AT
STAPLETON INTERNATIONAL AIRPORT.
IN 1996...A SMALL TORNADO TOUCHED DOWN IN THE FOOTHILLS
SOUTHWEST OF BOULDER NEAR PINECLIFFE...KNOCKING DOWN
50 TO 100 LARGE PINE TREES. A HOUSE NEARBY SUSTAINED
DAMAGE WHEN SHINGLES WERE RIPPED FROM THE ROOF. THE TORNADO
ALSO PICKED UP A 17-FOOT SAILBOAT WITH ATTACHED TRAILER AND
CARRIED IT 25 FEET INTO A NEARBY TREE. IN ADDITION...
THUNDERSTORM WIND GUSTS TO 46 MPH WERE MEASURED AT DENVER
INTERNATIONAL AIRPORT.
IN 2004...HAIL AS LARGE AS 1 INCH IN DIAMETER FELL NEAR CASTLE
ROCK. HAIL TO 3/4 INCH WAS MEASURED NEAR BENNETT.
IN 2005...SEVERE THUNDERSTORMS PRODUCED HAIL AS LARGE AS 1 INCH
IN DIAMETER IN CENTENNIAL.
IN 2011...SEVERE THUNDERSTORMS PRODUCED AND DAMAGING ACROSS
PARTS OF METROPOLITAN DENVER. IN LAKEWOOD...A TREE BLEW DOWN
AND LANDED ON AT LEAST FIVE CARS. AT CENTENNIEL AIRPORT...A
SECTION OF A ROOF ON A HANGAR WAS RIPPED OFF THE STRONG
WINDS. A PEAK WIND GUST OF 46 MPH WAS RECORDED AT
CENTENNIEL AIRPORT AND DENVER INTERNATIONAL AIRPORT IN
THE EVENING.
IN 2022...SEVERE THUNDERSTORMS PRODUCED LARGE HAIL ACROSS
PARTS OF BOULDER AND WELD COUNTIES. THE HAIL RANGED FROM
1 TO 1 1/2 INCHES AT ALLENSPARK...FT. LUPTON...HUDSON AND
LOCHBUIE.
16-17 IN 1965...ON THE AFTERNOON AND EVENING OF THE 16TH...VIOLENT
THUNDERSTORMS PRODUCED EXTREMELY HEAVY CLOUDBURSTS OF RAIN
OVER THE PALMER DIVIDE AND SENT A WALL OF WATER AS HIGH AS
20 FEET DOWN BOTH BRANCHES OF PLUM CREEK INTO THE SOUTH
PLATTE RIVER AND THROUGH METRO DENVER. THE HEAVY RAINFALL
PRODUCED THE MOST DEVASTATING FLOOD IN THE HISTORY OF
DENVER. RAINFALL TOTALED 14.0 INCHES IN 3 HOURS AT BOTH
LARKSPUR AND PALMER LAKE WITH 12.0 INCHES RECORDED IN CASTLE
ROCK. THE FLOOD WATERS CAUSED EXTENSIVE DAMAGE TO ROADS AND
BRIDGES IN LARKSPUR...CASTLE ROCK...AND SEDALIA...INCLUDING
WASHING OUT THE I-25 BRIDGE OVER EAST PLUM CREEK IN CASTLE
ROCK. THE CITIZENS OF METRO DENVER RECEIVED REPORTS OF THE
FLOODING TO THE SOUTH AND HAD A FEW HOURS TO INITIATE
EVACUATION PROCEDURES ALONG THE SOUTH PLATTE RIVER...GREATLY
LIMITING THE LOSS OF LIFE. BY EVENING...THE FLOOD REACHED
LITTLETON WHERE AN HEROIC EFFORT WAS MADE TO SAVE NEARLY
150 HORSES AT THE CENTENNIAL RACETRACK...WHICH WAS
COMPLETELY INUNDATED BY THE FLOOD WATERS. AS THE FLOOD
PROCEEDED THROUGH THE CITY OF DENVER...THE RIVER BECAME MORE
THAN 1/2 MILE WIDE AND DESTROYED ALL HOMES...TRAILER COURTS...
AND BUSINESSES IN ITS PATH. THE WATERS CONTAINED DEBRIS
RANGING FROM REFRIGERATORS TO OLD CARS. AS MANY AS 26
BRIDGES WERE DAMAGED OR DESTROYED...INCLUDING THE 6TH AVENUE
FREEWAY BRIDGE ACROSS THE SOUTH PLATTE. BOTH PUBLIC SERVICE
COMPANY POWER PLANTS WERE SHUT DOWN BY THE FLOOD. THE KING
SOOPERS GROCERY CHAIN BAKERY WAS INUNDATED. ABOUT MIDNIGHT...
THE TORRENT CRESTED AT 25 FEET ABOVE NORMAL WITH FLOW
EXCEEDING 40 TIMES NORMAL AND IS THE RECORD FLOOD ON THE
SOUTH PLATTE AND MANY OF ITS TRIBUTARIES. THE FLOOD CAUSED
230 MILLION DOLLARS IN DAMAGE AND 8 DEATHS ALONG THE ENTIRE
SOUTH PLATTE RIVER BASIN. THE INTENSE RAIN ALSO CAUSED
FLOODING ALONG CHERRY CREEK IN DENVER...ON TOLL GATE AND SAND
CREEKS IN EAST METRO DENVER...AND ON KIOWA AND BIJOU CREEKS
TO THE EAST OF DENVER. THE SOUTH PLATTE RIVER FLOOD CLOSED
NEARLY EVERY MAJOR EAST-WEST HIGHWAY INTO DENVER...NEARLY
ISOLATING THE CITY. THE FLOOD CAUSED HEAVY DAMAGE TO STATE
AND COUNTY ROADS IN THE AREA. RAILROADS WERE ALSO HARD HIT
WITH THE MAIN YARDS IN LOWER DOWNTOWN INUNDATED. SEWERAGE...
WATER SUPPLY FACILITIES...AND IRRIGATION WORKS ALSO RECEIVED
HEAVY FLOOD DAMAGE. THE FLOOD CREST DID NOT REACH NEBRASKA
UNTIL THE 20TH.
17 IN 1915...NORTHWEST WINDS WERE SUSTAINED TO 41 MPH WITH AN
EXTREME VELOCITY TO 42 MPH.
IN 1967...THIS WAS THE 24TH CONSECUTIVE DAY WITH A TRACE
OR MORE OF PRECIPITATION FROM MAY 25TH. PRECIPITATION
TOTALED 5.87 INCHES DURING THE PERIOD...MORE THAN A
THIRD OF THE AVERAGE YEARLY TOTAL.
IN 1975...HAIL MORE THAN 2 INCHES IN DIAMETER FELL IN
EASTERN AURORA.
IN 1977...GOLF BALL SIZE HAIL WAS REPORTED 3 MILES EAST OF
ARAPAHOE COUNTY AIRPORT...NOW CENTENNIAL AIRPORT. HEAVY
HAIL TO 3/4 INCH IN DIAMETER WAS REPORTED IN LITTLETON...
CASTLE ROCK...AND SEDALIA.
IN 1979...A MAN AND A GIRL WERE STRUCK AND KILLED BY LIGHTNING
WHILE WALKING IN A PARK IN NORTHWEST DENVER.
IN 1987...3/4 INCH HAIL FELL NEAR BOULDER.
IN 1991...A MICROBURST WIND GUST TO 59 MPH KICKED UP SOME
BLOWING DUST AT STAPLETON INTERNATIONAL AIRPORT.
IN 1998...HAIL AS LARGE AS 3/4 INCH IN DIAMETER FELL IN
BOULDER.
IN 2003...LIGHTNING STRUCK A FEEDER LINE...KNOCKING OUT THE
ELECTRICITY TO ABOUT 3000 RESIDENTS IN LITTLETON. A
LIGHTNING STRIKE CAUSED MINOR DAMAGE TO THE ROOF AND ATTIC
OF A HOME IN LAFAYETTE. ANOTHER LIGHTNING STRIKE CAUSED
MINOR ROOF DAMAGE TO A RESIDENCE IN LOUISVILLE. YET
ANOTHER LIGHTNING STRIKE HIT A HOME IN DENVER AND CAUSED
A SMALL ATTIC FIRE. HAIL AS LARGE AS 1 INCH IN DIAMETER
WAS MEASURED NEAR CENTENNIAL AIRPORT AND NEAR GREENLAND.
IN 2009...HAIL UP TO 1 INCH IN DIAMETER WAS MEASURED NEAR
LONGMONT.
IN 2015...A SEVERE THUNDERSTORM PRODUCED HAIL UP TO 1 1/2
INCHES IN DIAMETER NEAR ARAPAHOE PARK...AND UP TO 1 INCH
IN DIAMETER NEAR PARKER.
17-18 IN 1964...FROM THE 17TH TO THE 18TH...HIGH WINDS AT SPEEDS OF
50 TO 60 MPH WITH GUSTS AS HIGH AS 75 MPH CAUSED DAMAGE TO
HOMES...POWER LINES...AND TREES IN BOULDER. NON-CONVECTIVE
WEST WINDS GUSTING TO 46 MPH CAUSED SOME BLOWING DUST AT
STAPLETON INTERNATIONAL AIRPORT ON THE 17TH.
18 IN 1875...A WINDSTORM PRODUCED SUSTAINED WINDS TO 45 MPH
DURING THE MORNING HOURS. NUMEROUS FOREST FIRES ALONG
THE BASE OF THE MOUNTAINS WERE VISIBLE FROM THE CITY.
IN 1886...NORTHWEST WINDS SUSTAINED TO 40 MPH WERE THE
STRONGEST OF THE MONTH THAT YEAR.
IN 1987...SEVERE THUNDERSTORMS PRODUCED LIGHTNING...LARGE HAIL...
A TORNADO...HEAVY RAIN...AND STRONG WINDS ACROSS METRO DENVER.
RAINFALL TOTALED 2.50 INCHES IN AN HOUR IN WHEAT RIDGE...
CAUSING MINOR FLOODING. I-25 WAS FLOODED IN NORTH-CENTRAL
DENVER...SNARLING TRAFFIC. HAIL 7/8 INCH IN DIAMETER FELL IN
LOUISVILLE WITH 1 1/2 INCH HAIL NEAR GOLDEN AND 1 TO 1 3/4
INCH HAIL IN AND NEAR CASTLE ROCK. A TORNADO TOUCHED DOWN
BRIEFLY IN CASTLE ROCK. NO DAMAGE WAS REPORTED. LIGHTNING
STARTED A SMALL FIRE THAT BURNED HALF A CABIN NEAR
EVERGREEN.
IN 1994...A FUNNEL CLOUD WAS SIGHTED OVER AURORA; HAIL TO
1 3/4 INCH DIAMETER FELL NEAR BRIGHTON; AND HAIL OVER AN
INCH IN DIAMETER FELL OVER AURORA...SOUTHEAST DENVER...
LOUISVILLE...AND BOULDER. LIGHTNING STRUCK A HOME IN
HENDERSON 9 MILES NORTH OF DENVER AND KNOCKED A HOLE IN
THE ROOF...WHICH CAUSED THE CEILING TO COLLAPSE. HAIL TO
1 1/4 INCH DIAMETER WAS MEASURED AT STAPLETON INTERNATIONAL
AIRPORT.
IN 2002...THE HAYMAN WILDFIRE IN THE FOOTHILLS TO THE SOUTHWEST
OF DENVER INTENSIFIED...AND THE WINDS ALOFT CARRIED THE SMOKE
PLUME DIRECTLY OVER METRO DENVER...AGAIN CREATING A DENSE HAZE
OF SMOKE WHICH BLOCKED THE SUN. SURFACE VISIBILITIES WERE
AGAIN REDUCED TO AS LOW AS 1 1/4 MILES AT DENVER
INTERNATIONAL AIRPORT.
IN 2004...SEVERE THUNDERSTORMS PRODUCED HAIL TO 3/4 INCH IN
DIAMETER NEAR MORRISON...IN LITTLETON...NEAR CONIFER...NEAR
CASTLE ROCK...AND IN AURORA NEAR CHERRY CREEK.
IN 2013...A LANDSPOUT TORNADO TOUCHED DOWN AT DIA. THE TORNADO
SENT 10 THOUSAND TRAVELERS ON THE CONCOURSE...ON PLANES AND IN
THE TERMINAL SCRAMBLING TO GET INTO TORNADO SHELTERS. THE
TORNADO FORMED JUST TO THE SOUTH OF RUNWAY 35R AND THEN MOVED
SLOWLY NORTHWEST BETWEEN RUNWAY 35R AND 35L...AND MOVED TO
WITHIN ONE THIRD OF A MILE OF CONCOURSES A AND B BEFORE
DISSIPATING. THE TORNADO MOVED EXTREMELY CLOSE IF NOT OVER THE
ASOS (AUTOMATED SURFACE OBSERVATION SYSTEM) AND ANOTHER LOW
LEVEL WIND SHEAR SENSOR AT DIA. THE ASOS WEATHER OBSERVING
SYSTEM REPORTED A 97 MPH WIND GUST...WHILE THE WIND SHEAR SENSOR
REPORTED A WIND GUST TO 109 MPH AT THE SAME TIME – INDICATIVE
OF AN EF1 TORNADO. THERE WAS ONLY MINOR DAMAGE NOTED TO THE
EQUIPMENT. NINE FLIGHTS WERE DIVERTED ELSEWHERE DURING A
TORNADO WARNING. SEVERE THUNDERSTORMS ALSO PRODUCED LARGE HAIL
UP TO 1 INCH IN DIAMETER IN ADAMS AND WELD COUNTIES.
IN 2014...A SEVERE THUNDERSTORM PRODUCED LARGE HAIL UP TO QUARTER
SIZE NEAR BUCKLEY AIR FORCE BASE. AT DENVER INTERNATIONAL
AIRPORT...A PEAK WIND GUST TO 55 MPH WAS OBSERVED FROM THE
SOUTHWEST...ALONG WITH 0.37 INCHES OF WATER.
IN 2015...A SEVERE THUNDERSTORM PRODUCED HAIL...FROM 1 TO 1 3/4
INCHES IN DIAMETER...NEAR LAFAYETTE...LOUISVILLE AND SUPERIOR.
19 IN 1874...DURING THE AFTERNOON...LARGE COLUMNS OF SMOKE FROM
EXTENSIVE FIRES IN THE MOUNTAIN FORESTS MOVED OVER THE
CITY FROM THE WEST AND SOUTHWEST.
IN 1875...WHILE NO PRECIPITATION WAS MEASURED IN THE CITY...
RAINFALL OVER THE PALMER DIVIDE CAUSED CHERRY CREEK TO
RISE TO THE HIGHEST LEVEL IN 10 YEARS.
IN 1977...HAIL UP TO 2 INCH DIAMETER DAMAGED TWO PATROL CARS
IN CASTLE ROCK.
IN 1983 GOLF BALL SIZE HAIL FELL JUST NORTH OF BENNETT.
IN 1990...LIGHTNING FROM A THUNDERSTORM STRUCK THE ROOF OF A
HOUSE IN SOUTH BOULDER. RESIDENTS OF THE HOUSE WERE ABLE
TO EXTINGUISH THE ENSUING FIRE WITH A GARDEN HOSE...BUT NOT
BEFORE SEVERAL SHINGLES HAD BURNED.
IN 1992...THUNDERSTORMS PRODUCED HAIL UP TO 2 INCHES IN
DIAMETER IN CENTRAL DOUGLAS COUNTY NEAR CASTLE ROCK. HAIL
WAS 3 INCHES DEEP ON I-25 SOUTH OF CASTLE ROCK. A FUNNEL
CLOUD WAS SIGHTED NEAR PARKER.
IN 1997...A 66-YEAR-OLD MAN WAS KNOCKED UNCONSCIOUS BY A BOLT
OF LIGHTNING WHILE HE WAS GOLFING AT THE EAGLE COUNTRY
CLUB IN BROOMFIELD.
IN 2000...DRY MICROBURST WINDS GUSTING TO NEAR 70 MPH WERE
REPORTED ACROSS SOUTHEAST BOULDER AND NORTHERN JEFFERSON
COUNTIES. PEAK WIND GUSTS INCLUDED: 68 MPH AT THE NATIONAL
WIND TECHNOLOGY CENTER...67 MPH AT JEFFERSON COUNTY AIRPORT...
AND 65 MPH IN BROOMFIELD.
IN 2001...SEVERE THUNDERSTORMS PRODUCED LARGE HAIL IN THE
FOOTHILLS SOUTHWEST OF DENVER. HAIL AS LARGE AS 1 3/4 INCH
IN DIAMETER FELL NEAR CONIFER AND BAILEY.
IN 2002...LIGHTNING DAMAGED THE EVERGREEN FIRE PROTECTION
DISTRICT RADIO REPEATER. ONE MICROWAVE TRANSMITTER...THE
MAIN FIRE CHANNEL TRANSMITTER...AND TWO SOLAR PANEL
CONTROLLERS WERE DESTROYED. LIGHTNING STRUCK A GARAGE
AND CAUSED A SMALL FIRE. TWO VEHICLES PARKED IN THE GARAGE
WERE DAMAGED. HAIL TO 3/4 INCH IN DIAMETER FELL NEAR CASTLE
ROCK.
IN 2004...SEVERE THUNDERSTORMS PRODUCED HAIL TO 3/4 INCH IN
DIAMETER NEAR CASTLE ROCK...LARKSPUR...AND GOLDEN.
IN 2018...VERY LARGE HAIL PUMMELED PORTIONS OF THE FRONT RANGE
URBAN CORRIDOR AND EXTENDED ACROSS THE NORTHEAST PLAINS OF
COLORADO. REPORTS OF COLLAPSED ROOFS DUE TO HAIL WERE
REPORTED...WITH MAJOR HAIL PORTIONS OF THE DENVER METRO AREA.
THE ROCKY MOUNTAIN INSURANCE INFORMATION ASSOCIATION
ESTIMATED THE PROPERTY DAMAGE FROM THE STORM TOTALED 276.4
MILLION DOLLARS...MAKING IT THE 8TH COSTLIEST HAILSTORM TO
STRIKE THE STATE TO DATE. IN DENVER AND THE SURROUNDING
METRO AREA...HAIL SIZES INCLUDED: 3 INCH DIAMETER IN
ENGLEWOOD; 2 3/4 INCH IN GREENWOOD VILLAGE; 2 INCH AT
AURORA CHERRY CREEK...4 MILES SOUTH OF GLENDALE AND NEAR
SMOKY HILL; 1 3/4 INCH JUST EAST OF DENVER INTERNATIONAL
AIRPORT AND NEAR SOUTH GLENN; 1 1/2 INCH NEAR NIWOT; AND 1
INCH DIAMETER HAIL IN SOUTHWEST DENVER AND 5 MILES NORTHEAST
OF PARKER.
IN 2022...A MICROBURST WIND PRODUCED A PEAK GUST TO 55 MPH AT
DENVER INTERNATIONAL AIRPORT FROM THE WEST. THE VISIBILITY WAS
BRIEFLY REDUCED TO ONE HALF OF A MILE.
19-21 IN 1875...FROM THE 19TH TO THE 21ST...SMOKE FROM SEVERAL LARGE
FOREST FIRES IN THE MOUNTAINS WAS VISIBLE FROM THE CITY ON
EACH OF THESE DAYS.
20 IN 1888...NORTHWEST WINDS WERE SUSTAINED TO 44 MPH.
IN 1956...A MICROBURST CAUSED A BRIEF WIND GUST TO 58 MPH AT
STAPLETON AIRPORT.
IN 1964...HAIL UP TO 1 INCH IN DIAMETER WAS REPORTED 1 MILE
NORTH OF STAPLETON INTERNATIONAL AIRPORT. A 3 MINUTE HAIL
STORM AT BOTH STAPLETON INTERNATIONAL AIRPORT AND LOWRY
FIELD PILED SMALL HAIL TO ONE HALF INCH DEEP.
IN 1967...A STRONG THUNDERSTORM DUMPED 1.95 INCHES OF RAIN IN
LESS THAN AN HOUR AT STAPLETON INTERNATIONAL AIRPORT AND
PRODUCED A WIND GUST TO 54 MPH. THE STORM CAUSED SOME
FLOODING IN EAST DENVER AND AURORA. THERE WAS WIDESPREAD
FLOODING TO STREETS...BASEMENTS...AND STORE BUILDINGS AND
AUTOMOBILES. HAIL STONES TO 3/4 INCH IN DIAMETER WERE
MEASURED AT BUCKLEY FIELD IN AURORA. A TORNADO TOUCHED
DOWN JUST SOUTH OF LITTLETON...DAMAGING A BARN AND KILLING
SEVERAL HEAD OF CATTLE.
IN 1985...A WIND GUST TO 61 MPH WAS REPORTED AT GOLDEN GATE
CANYON IN THE FOOTHILLS WEST OF DENVER.
IN 1986...A MAN WAS KILLED BY LIGHTNING AT HIGHLANDS RANCH
SOUTH OF DENVER.
IN 1987...SEVERAL TORNADOES WERE SIGHTED ACROSS METRO
DENVER. A TORNADO TOUCHED DOWN BRIEFLY 5 MILES WEST OF
PARKER. A TORNADO WAS SIGHTED JUST NORTH OF CHATFIELD
RESERVOIR. A TORNADO JUST NORTHWEST OF WATKINS WAS ON THE
GROUND FOR 15 MINUTES. A TORNADO NEAR BARR LAKE WAS TAPED
BY A TELEVISION NEWS CREW. IT HAD A DOUBLE VORTEX AND WAS
ON THE GROUND FOR ABOUT 10 MINUTES. IN ADDITION TO THE 4
TORNADOES...SEVERE THUNDERSTORMS DUMPED LARGE HAIL ACROSS
METRO DENVER. ONE INCH HAIL WAS REPORTED IN SOUTHEAST
AURORA; 3/4 INCH HAIL FELL AT THE DENVER TECHNOLOGY
CENTER...BUCKLEY FIELD...AND FRANKTOWN.
IN 1992...SEVERAL SHORT-LIVED TORNADOES OCCURRED IN THE
VICINITY OF BARR LAKE. NO INJURIES OR DAMAGES WERE
REPORTED. A WATER SPOUT WAS SIGHTED OVER THE SOUTHERN END
OF BARR LAKE. FUNNEL CLOUDS WERE ALSO SIGHTED ON THE
GROUNDS OF THE ROCKY MOUNTAIN ARSENAL BY NATIONAL WEATHER
SERVICE OBSERVERS AT STAPLETON INTERNATIONAL AIRPORT.
IN 1994...HAIL UP TO DIME SIZE COVERED I-25 SOUTH OF DENVER
AND NEAR SEDALIA. HEAVY RAIN CAUSED LOCAL FLOODING ON THE
INTERSTATE HIGHWAY.
IN 1996...STRONG THUNDERSTORM WINDS DOWNED SEVERAL LARGE TREE
LIMBS IN BOULDER ON THE UNIVERSITY OF COLORADO CAMPUS. A
STOP LIGHT IN THE CITY WAS ALSO BLOWN DOWN.
IN 1999...LIGHTNING SPARKED AN OIL TANK FIRE NEAR BRIGHTON.
IN 2001...LARGE HAIL DRIVEN BY STRONG THUNDERSTORM WINDS RAKED
DENVER INTERNATIONAL AND FRONT RANGE AIRPORTS. WIND GUSTING
TO 54 MPH ALONG WITH HAIL AS LARGE 2 INCHES IN DIAMETER
PUNCHED AT LEAST 14 THOUSAND HOLES AND CRACKS IN THE FLAT
ROOFS OF SEVERAL BUILDINGS AT DENVER INTERNATIONAL AIRPORT.
IN ADDITION...93 PLANES AND HUNDREDS OF CARS WERE DAMAGED.
ABOUT 100 FLIGHTS HAD TO BE CANCELLED...STRANDING 1500
TRAVELERS. THE AIRPORT WAS COMPLETELY SHUT DOWN FOR ABOUT
20 MINUTES. THE STORM ALSO DAMAGED A GROUND AVOIDANCE RADAR
USED TO TRACK PLANES ON THE GROUND TO PREVENT COLLISIONS.
DAMAGE WAS ESTIMATED AT 10 MILLION DOLLARS...NOT COUNTING THE
DAMAGE TO THE 93 AIRLINERS. THE STORM MOVED SOUTH AND
STRUCK WATKINS WITH HAIL AS LARGE AS 2 1/2 INCHES IN
DIAMETER AND WINDS GUSTING TO 60 MPH. A LEAST 30 PRIVATE
PLANES AT FRONT RANGE AIRPORT WERE DESTROYED. THE RADOME
PROTECTING THE NATIONAL WEATHER SERVICE DOPPLER RADAR...WHICH
WAS TRACKING THE STORM...ALSO SUSTAINED DAMAGE. THE LARGE
HAIL...DAMAGING WINDS...AND HEAVY RAIN PUMMELED A MOBILE HOME
PARK NEAR WATKINS. IN THE PARK...52 MOBILE HOMES...14
RECREATIONAL VEHICLES...3 HOMES...AND A COMMERCIAL BUILDING
WERE DAMAGED. SIDING WAS RIDDLED WITH HOLES AND WINDOWS
WERE BROKEN. VEHICLES SUSTAINED EXTENSIVE DAMAGE AND CAR
WINDOWS WERE SHATTERED. A HANDFUL OF PEOPLE WERE TREATED
FOR MINOR CUTS AND BRUISES. THE STRONG WINDS ALSO FLIPPED
A TRACTOR TRAILER ALONG I-70 NEAR WATKINS. THE STORM CAUSED
POWER OUTAGES...WHICH AFFECTED ABOUT 1200 RESIDENTS.
EXCLUDING THE DAMAGE AT DENVER INTERNATIONAL AIRPORT...DAMAGE
ESTIMATES TOTALED 49 MILLION DOLLARS...MAKING THE STORM THE
COSTLIEST IN THE LAST 3 YEARS AND THE 10TH COSTLIEST SINCE
1984. A SMALL TORNADO TOUCHED DOWN JUST EAST OF BRIGHTON...
BUT DID NO DAMAGE. HAIL AS LARGE AS 2 INCHES IN DIAMETER
FELL NEAR FORT LUPTON WITH 3/4 INCH HAIL MEASURED IN
BENNETT. PRECIPITATION FROM THE STORM TOTALED ONLY 0.23
INCH AT DENVER INTERNATIONAL AIRPORT.
IN 2002...HEAVY RAIN FELL NEAR THE HAYMAN WILDFIRE BURN AREA.
FLASH FLOODING WASHED OUT A 40-FOOT SECTION OF THE ACCESS
ROAD TO CHEESEMAN RESERVOIR. SOME DEBRIS WAS WASHED AGAINST
A GATE...BLOCKING THE ROAD. HAIL TO 1 1/2 INCHES IN DIAMETER
FELL NEAR CENTRAL CITY WITH 3/4 INCH HAIL NEAR BLACKHAWK.
IN 2003...HAIL AS LARGE AS 1 INCH IN DIAMETER FELL NEAR BENNETT
AND STRASBURG WITH 3/4 INCH HAIL MEASURED IN DENVER...GOLDEN...
AT CENTENNIAL AIRPORT...AND NEAR PARKER. HAIL AS LARGE AS
7/8 INCH WAS REPORTED IN ARVADA.
IN 2004...A SEVERE THUNDERSTORM PRODUCED HAIL TO 3/4 INCH IN
DIAMETER IN AND NEAR BRIGHTON.
IN 2005...SEVERE THUNDERSTORMS PRODUCED LARGE HAIL NEAR THE
PALMER DIVIDE. HAIL TO 1 INCH IN DIAMETER WAS MEASURED
NEAR LARKSPUR WITH 7/8 INCH HAIL NEAR SEDALIA AND 3/4 INCH
HAIL IN GREENLAND. AN APPARENT THUNDERSTORM OUTFLOW PRODUCED
A WIND GUST TO 59 MPH AT DENVER INTERNATIONAL AIRPORT DURING
THE EVENING HOURS.
IN 2010...LIGHTNING STRUCK A HOME IN CENTENNIEL AND SPARKED A
FIRE WHICH CAUSED EXTENSIVE DAMAGE.
20-21 IN 1897...HIGH WINDS RAKED THE CITY OVERNIGHT. SOUTHEAST WINDS
WERE SUSTAINED TO 60 MPH WITH GUSTS AS HIGH AS 72 MPH ON THE
20TH. SOUTHEAST WINDS WERE SUSTAINED TO 57 MPH WITH GUSTS
TO 60 MPH ON THE 21ST.
IN 2007...A BRIEF HOT SPELL PRODUCED TWO TEMPERATURE RECORDS.
THE HIGH TEMPERATURE OF 97 DEGREES WAS TIED ON THE 20TH.
A NEW RECORD HIGH TEMPERATURE OF 99 DEGREES WAS ESTABLISHED
ON THE 21ST.
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