Public Information Statement
Issued by NWS Denver/Boulder, CO
NOUS45 KBOU 140045
Public Information Statement
National Weather Service Denver/Boulder CO
645 PM MDT SAT AUG 13 2016
...This week in metro Denver weather history...
14 In 1960...a bolt of lightning struck a man in Henderson...
causing serious burns.
In 1962...the temperature climbed to a high of 100 degrees
at Stapleton Airport.
In 1968...a young man on a golf course in Denver was injured
when lightning struck a tree under which he was standing.
Lightning caused minor damage to a house in Denver. Heavy
thunderstorm rain caused local street flooding. One inch
diameter hail fell at Jefferson County Airport near
In 1973...winds as high as 85 mph damaged 20 aircraft at the
Arapahoe County Airport...now Centennial Airport.
In 1977...three tornadoes were sighted in Bennett. A man
suffered a broken leg when hit by a flying board. He was
outside his camper home...which was destroyed. All windows
were broken in a near-by farmhouse where some shingles were
ripped off and a 2 car garage was knocked down. Several
vehicles were damaged and a cat...some rabbits...and chickens
were killed. A broken oar from a boat was driven into the
side of a house. A mobile home was overturned. One old
barn was destroyed. Half a dozen homes and several
agricultural buildings were damaged just west of State
In 1978...high winds produced much blowing dust...causing many
traffic accidents in the Denver-Boulder area. Winds gusts
of 70 to 101 mph were recorded. Northwest winds gusted to
44 mph at Stapleton International Airport.
In 1980...lightning hit two power poles in Littleton...causing
400 dollars in damage. Rainfall of 1.23 inches in a short
time caused minor flooding...which included damage to a
ground floor apartment and partially submerging a few
vehicles in water. Thunderstorm rainfall totaled 0.98 inch
at Stapleton International Airport.
In 1983...2.10 inches of rain drenched Golden in an hour with
similar amounts in Lakewood and Boulder. Over ten thousand
dollars worth of plants were washed away at a nursery in
In 1997...twelve motorists were injured in a multi-car
accident when strong microburst winds estimated to 50 mph
blew blinding dust across I-70 near Bennett.
In 1998...lightning struck a hydro-electric plant in Nederland...
causing a power outage. Residents in the foothills west
of Boulder...including Nederland...Ward...Eldora...Jamestown...
and Gold Hill...were without power for about an hour.
In 2006...heavy thunderstorm rainfall near Deckers washed
away some the banks along State Highway 67 between Deckers
and Westcreek. Several driveways on both sides of the
highway were also damaged.
15 In 1899...a thunderstorm produced southwest sustained winds
to 43 mph with gusts to 46 mph.
In 1972...a pilot reported a funnel cloud briefly touching
the ground in open fields...17 miles east-northeast of
Stapleton International Airport.
In 1980...thunderstorm winds gusted to 55 mph in Boulder.
In 1982...brief heavy rain and winds estimated as high as 70
mph occurred in the Conifer-Evergreen area. No damage was
In 1990...lightning triggered a small attic fire in a house
near Sedalia...20 miles south of Denver. A furious
lightning storm caused widespread power outages across
southern sections of metro Denver. One lightning bolt
knocked out an electrical substation...causing a 90-minute
blackout in southeast Denver affecting nearly 10 thousand
homes and businesses.
In 2007...severe thunderstorms produced large hail...up to 2
inches in diameter...near Larkspur. Extensive damage to
vehicles in the area was reported. In Parker...lightning
struck a residence. The ensuing fire damaged the attic
and top floor; causing $100000 in property damage.
In 2008...at least three homes were hit by lightning during
the early morning hours in Arapahoe County. Lightning
also struck two homes in Castle Rock...damaging the roofs.
In 2013...a dry microburst uprooted 30 to 40 large trees
across a 12-block area of the Park Hill neighborhood in
east central Denver. Several trees were snapped near the
base along with numerous branches...8 to 10 inches in
diameter. Power poles and lines were also downed with
resulted in outages which affected seven hundred
residents. One of the downed trees crushed a car`s hood...
narrowly missing the driver. At Denver International
Airport...a peak wind gust of 22 mph was observed from the
16 In 1902...a thunderstorm produced west winds sustained to
48 mph with gusts to 60 mph...but only a trace of rain.
In 1952...a thunderstorm wind gust to 50 mph was recorded at
In 1960...lightning struck a warehouse in central Denver...
causing 8 thousand dollars in damage to the building and
stored electrical equipment.
In 1975...large hail...1 1/2 to 1 3/4 inches in diameter...fell
about 4 miles north of Castle Rock. Hail caused some minor
damage in Aurora. A funnel cloud was reported 25 miles
east of Denver near Bennett.
In 1981...a tornado touched down briefly in open country just
to the east of Aurora. No damage was reported.
In 1982...a thunderstorm wind gust to 61 mph was recorded at
Buckley Field in Aurora. At the same time almost an inch
of rain flooded and closed streets in south Aurora. A
women was hit by lightning just north of Denver. A house
in the area was also struck.
In 1985...a thunderstorm produced strong wind gusts over
southern metro Denver. One strong wind gust hit Cherry
Creek Reservoir...capsizing a boat and drowning a man. The
wind gusts...clocked as high as 50 mph...also downed a few
In 1989...1 3/4 inch diameter hail fell at Intercanyon in
the foothills of Jefferson County.
In 1990...lightning caused minor damage to a south Aurora
home. No injuries were reported.
In 1994...strong thunderstorm winds caused damage in southern
Weld County near Hudson and Fort Lupton. Two mobile homes
were destroyed and a few lost their roofs. Up to 20 downed
power poles and the destruction of two 115 thousand-volt
towers caused widespread power outages. Thunderstorm gust
front winds from the north gusted to 48 mph at Stapleton
In 2000...lightning ripped most of the roof from a home in
southeast Aurora. The bolt sparked a fire which destroyed
the residence. Damage was estimated at 250 thousand
In 2002...the temperature climbed to a maximum of 100 degrees
setting a new record high for the date.
In 2003...a teenager was injured when he was struck by
lightning while camping at Herman Lake...13 miles northwest
of Georgetown. The boy was knocked unconscious and suffered
16-19 In 1979...heavy thunderstorm rains on each of 4 consecutive
days dumped a total of 2.62 inches of rain on Stapleton
International Airport. The heaviest rain...1.05 inches...
on the 19th was accompanied by 1/4 inch diameter hail.
17 In 1953...a tornado was sighted 8 miles east of Castle Rock.
An unconfirmed tornado was sighted between Denver and
Strasburg. No damage was reported.
In 1963...heavy rain in southeast Denver...Englewood...and
Littleton caused flooding of basements and streets. Over
3.00 inches of rain fell at Cherry Creek Dam. Lightning
caused power failures. The hardest hit areas were in north-
central Denver. A 12-year-old boy was swept into a conduit
by a 3-foot high crest of water. He was carried 125 feet
through the waterway...but was unhurt. Thunderstorm
rainfall totaled only 0.24 inch at Stapleton Airport.
In 1972...a thunderstorm wind gust to 53 mph was recorded at
Stapleton International Airport. Strong winds also occurred
in the Littleton area where several trees and utility poles
were blown over and a number of windows broken.
In 1978...1 3/4 inch diameter hail was reported in Thornton.
In 1982...heavy rain occurred in the foothills southwest of
Denver where 4.50 inches fell in 75 minutes between
Evergreen and Conifer. Nearby...2.66 inches of rain
drenched the North Turkey Creek Canyon area in just 15
In 1984...scattered slow moving thunderstorms dumped heavy
rain across southern metro Denver. The heavy rain caused
some road washouts in Jefferson and Douglas counties. A
bridge was washed out in Douglas County. Three inches of
rain fell in just an hour at Castle Rock...causing heavy
silt damage to a home and to nearby drainage ditches.
In 1988...a thunderstorm dumped 2 to 3 inches of rain in
southeast Denver and adjacent areas of Arapahoe County
in less than 90 minutes. There was widespread street
flooding...and I-25 was closed by 4 feet of water near its
intersection with I-225 just south of Denver. A flood
control project in Arapahoe County at Greenwood Village
sustained over 10 thousand dollars damage. Up to 4 feet
of water flooded some basements in the area. Only 0.44
inch of rain fell at Stapleton International Airport.
In 1990...heavy thunderstorm rains over the Boulder Creek
and St. Vrain Creek drainage basins caused many creeks and
drainage ditches to rise in eastern Boulder and southwest
Weld counties. The high waters punched three 30-foot holes
in the embankment of a drainage ditch...which traversed
through the town of Firestone...20 miles north of Denver.
A sheet of water 2 to 3 feet deep rushed out onto the
streets of Firestone...forcing the evacuation of a trailer
park and residents from 50 neighboring homes. No injuries
or serious damage occurred except for mud and water damage.
Lightning struck and injured 4 construction workers
standing in an Aurora field. They received treatment for
minor injuries at a local hospital. Lightning also
struck the roof of a Methodist Church in central Denver...
knocking down the highest peak of the steeple. A half
dozen people were in the building...but no one was injured.
Slow moving thunderstorms dumped 2 to 3 inches of rain over
southeast Aurora in 90 minutes. The heavy rain accumulated
on the roof of a condominium clubhouse...causing the roof to
collapse under the weight of the water. Nearly 300
residents were evacuated from the 200-unit complex because
of the structural damage. The residents were allowed to
return to their homes when it was determined the damage was
confined to the clubhouse. No injuries were reported.
In 1993...just west of Fort Lupton...thunderstorm winds blew
the tin roof off a cattle shelter into a mobile home...
causing considerable damage to the mobile home.
In 1997...lightning struck a home in Castle Rock sparking a
fire. Damage was estimated at 20 thousand dollars.
In 2000...thunderstorms producing very heavy rain...up to 3.50
inches in spots...caused flooding and flash flooding across
metro Denver. In Commerce City...a 37-year-old firefighter
drowned while attempting to rescue a stranded motorist on
a flooded street. The firefighter was wading through the
water when he lost his footing and was sucked into a 10
foot deep culvert. He was swept away before anyone could
reach him. Extensive flooding was also reported throughout
Littleton and north Denver.
18 In 1965...heavy rain in areas south and east of Denver caused
some flooding in Littleton and Englewood. Clear Creek was
running near bankfull...and heavy rain in southwest Denver
In 1966...a brief very heavy thunderstorm dumped 0.61 inch of
rain in just 5 minutes at Stapleton International Airport.
Total rainfall from the storm...0.64 inch...fell in just 10
minutes. Half inch diameter hail also fell at Stapleton
International Airport. The public sighted funnel clouds 10
to 15 miles south of the airport.
In 1967...hail struck in a strip along the eastern foothills
and caused minor damage in Boulder. Hail accumulated to a
depth of 4 to 6 inches in Jefferson County just southwest
In 1983...one inch to hen egg size hail was reported in
Broomfield with golf ball size hail at Northglenn.
In 1990...dime size hail and thunderstorm wind gusts to 50 mph
were reported by storm spotters just east of Aurora near
the intersection of Mississippi Avenue and Gun Club Road.
The hail and strong winds damaged a number of windows in
In 1991...very heavy rain from slow moving thunderstorms
dumped up to 3 inches of rain in 20 minutes in the vicinity
of Idaho Springs and Central City. Flooding in Idaho
Springs forced the closure of the Virginia Gulch Road...which
runs from Idaho Springs to Central City. Dirt roads above
Central City were damaged or destroyed with the mud being
swept onto streets in town. High water in Clear Creek...up
to 3 feet above flood stage...washed out a bridge in Idaho
Springs. Rock and mud slides forced the closure of I-70
about 1 mile east of Idaho Springs.
In 1997...dry microbursts produced two peak wind gusts to
an estimated 60 mph east of Buckley Field.
In 2000...hail as large as 3/4 inch in diameter was measured
5 miles west of Sedalia.
In 2003...a severe thunderstorm produced hail as large as
2.75 inches in diameter at Highlands Ranch. Hail to 3/4
inch was reported in Aurora near Cherry Creek and in
Arapahoe County 9 miles southeast of Aurora.
In 2004...heavy thunderstorm rainfall caused flash flooding
across central and southern metro Denver. A rain gage at
City Park recorded 4.37 inches of rainfall from the deluge.
Several roads in and around the city had to be closed due
to floodwaters...stranding many vehicles. The Denver Fire
Department conducted at least 15 water rescues. One driver
nearly drowned when he made a wrong turn into a retaining
pond. Four men who witnessed the accident were able to save
the man before his car was completely submerged. Widespread
street flooding was reported in the Denver Stapleton area
where rainfall totaled 3.81 inches. Standing water over
6 inches deep was reported near I-70 and Quebec...I-225 south
of I-70...and I-25 near 6th Avenue. Flood waters reached
8 feet deep in some low lying areas as sewers became clogged
and the storm runoff pipes were unable to handle the heavy
flow of water. Heavy rainfall caused additional flash
flooding south of Denver. Several street intersections in
Centennial and southern Aurora became impassable due to high
water. Two feet of water covered portions of the roadway near
Park Meadows Mall. One person had to be rescued near the
intersection of Arapahoe Road and Liverpool. Floodwaters
forced the closure of Stonegate Parkway near Jordan Road and
Lincoln Avenue. Flooding was also reported on Meridian Blvd.
near I-25. Rainfall was 1.62 inches at Denver International
18-19 In 1875...nearly 0.75 inch of rainfall in the city overnight...
possibly assisted by heavier rainfall upstream...produced a
decided and rapid rise in Cherry Creek...which washed out
some bridges. Other small creeks and streams were filled
19 In 1983...heavy rain fell across the northern metro Denver
suburbs with 1.50 to 1.80 inches of rain in Broomfield...
In 1989...lightning killed a 31-year-old man and injured his
10 year old nephew when it hit a tree they were walking
under in the foothills about 5 miles west of Boulder. The
boy received mouth to mouth resuscitation on the scene and
recovered after being hospitalized overnight. Three other
people were knocked to the ground by the bolt...but were
In 1990...3/4 inch diameter hail was reported in Wheat Ridge.
A thunderstorm over west Denver dumped an inch of rain in
20 minutes...causing minor street flooding. One inch
diameter hail was reported over east Denver. Ping pong to
golf ball size hail was reported 14 miles northeast of
Denver at the intersection of 122nd Ave. and Brighton Blvd.
The hail stones knocked out windows and did an unspecified
amount of damage to the roof of a house. Close by...heavy
thunderstorm rains caused gullies...irrigation ditches...and
small streams to overflow their banks near the intersection
of 120th Avenue and Riverdale Road. Flood waters 1 to 2
feet deep covered the river bottom land along the South
Platte River. However...no structures were threatened by
the flood waters.
In 1999...heavy rain...up to 5 inches in two hours...caused
East Tollgate Creek to jump its banks. The bike path
adjacent to the creek was underwater at several locations.
Several underpasses were also flooded...halting traffic.
In addition...an unfinished playground at a local elementary
school was completely flooded. Lightning struck a vehicle
at East Evans Avenue and Tower Road. The woman inside the
vehicle was not injured.
19-30 In 1875...grasshoppers appeared in great numbers at 10:00 AM
on the 19th. Thousands landed on the ground. The streets
were literally covered with them. Swarms of grasshoppers
were seen on each day. All gardens in the city were
devastated...and in the countryside the grasshoppers were
very destructive to ripened grain. On the 30th the
grasshoppers were so numerous as to almost darken the sun.
20 In 1980...winds to 55 to 60 mph were recorded in south
In 1982...strong thunderstorm winds blasted the Jefferson
County Airport near Broomfield...causing an estimated 3
million dollars in damage. At least 5 hangars and 15
airplanes were damaged...many seriously; one hangar was
completely destroyed. Torrential rains accompanied the
winds. Heavy rains also dumped on Boulder where 1.65
inches fell in just 15 minutes...causing street flooding.
Wind gusts to 72 mph were recorded in Boulder. Over half
an inch of rain fell in just 5 minutes in Littleton where
two homes were struck by lightning. Lightning also struck
a house in Arvada where over an inch of rain sent Ralston
Creek over its banks. Strong winds accompanied the storms.
In 1984...slow moving thunderstorms dumped 1.25 inches of rain
in Evergreen...causing street flooding. A half inch of rain
fell in just 18 minutes in southeast Denver. Littleton and
Boulder were also drenched with about an inch of rain.
Rainfall totaled 0.92 inch at Stapleton International
In 2001...severe thunderstorms produced damaging winds and
large hail across metro Denver. Hail as large 1 inch in
diameter fell in Aurora near Cherry Creek. Strong
thunderstorm winds gusting as high as 58 mph blew the roof
from a building between Thornton and Denver and toppled
several trees in Denver. One tree landed on a mail truck.
Other thunderstorm winds were clocked to 60 mph near Parker...
62 mph in Broomfield...and 61 mph at Denver International
In 2006...a tornado (F0) touched down near Bennett...but caused
no reported damage.
In 2013...severe thunderstorms pounded the southern Denver
suburbs and other parts of the Front Range. In Jefferson
County...water rescues were reported for some people in
stranded cars. In the Ken Caryl area...large hail from one
inch to 1 3/4 inches in diameter was reported. On West
Chatfield Avenue in Jefferson County...hail runoff gathered
six inches deep in spots and "hail plows" were sent out to
clear some streets. Hail up to one inch in diameter was
also reported near Castle Rock.