Current Watches and Warnings
Colorado, Logan County
Public Information Statement
Statement as of 7:45 PM MDT on July 04, 2015
... This week in Metro Denver weather history...
29-15 in 2000... the 29th marked the beginning of a near record hot
streak for Metro Denver. The high temperatures... as recorded
at Denver International Airport... exceeded the 90 degree mark
for 17 consecutive days from June 29th through July 15th.
The record of 24 consecutive 90 degree or above days was
set from July 13th through August 5th... 2008.
1-18 in 1874... a streak of 18 consecutive days of 90 degrees
tied for second with another streak that was later set
in the Summer of 1901. The record of 24 consecutive days
was established in the Summer of 2008.
1-31 in 2012... it was the hottest July on record in Denver since
weather records began in 1872. The average temperature for
the month was 78.9 degrees which was 4.7 degrees above
normal. There were 27 days in which the high temperature
equaled or exceeded 90 degrees... which established a new
record. There were also 7 days in which the temperature
equaled or exceeded 100 degrees which tied the record
set in 2005.
4-5 in 1875... nearly every Railroad running into the city was
damaged by heavy thunderstorm rains. The heavy rains
washed out wooden bridges over normally dry creeks.
Some trains were entirely suspended. In the city... heavy
thunderstorm rain totaled 1.05 inches on the 4th... but
only 0.28 inch on the 5th.
4-8 in 1989... one of the most intense heat waves on record roasted
Metro Denver. The temperature reached 100 degrees or more
on 5 consecutive days. The city had previously never
recorded more than 2 straight 100-degree days since records
began in 1872. Water and electricity usage reached all time
highs. The heat wave created extremely dry weather
conditions... which contributed to a major Forest fire in
Boulder Canyon on July 9th. The temperature reached 103
degrees on the 8th... and the Mercury climbed to 101 degrees
on both the 4th and 5th... and to 102 degrees on both the
6th and 7th. The low temperature of 68 degrees on the 8th
equaled the record high minimum for the date.
5 in 1908... a late evening thunderstorm produced sustained north
winds to 40 mph... hail... and 0.45 inch of precipitation.
In 1949... a dust devil... possibly a small tornado... was observed
3 miles to the northwest of Stapleton Airport.
In 1973... the temperature reached 100 degrees at Stapleton
In 1974... strong thunderstorm winds damaged a Mobile home... a
barn... two houses... and several sheds near Watkins.
In 1975... a thunderstorm wind gust to 53 mph was recorded at
Stapleton International Airport. Hail up to 3/4 inch in
diameter fell over the northwest suburbs and in northwest
In 1977 three houses in Denver were struck by lightning.
Some heavy damage and fire occurred.
In 1990... lightning caused minor damage to houses in Castle
Rock... Louviers... and Littleton.
In 1996... lightning caused only minor damage when it struck
a home in Evergreen. Lightning from a fast moving
thunderstorm blasted a large hole in the side of a house
in Lakewood. Lightning triggered a minor power outage in
the Boulder area. About 200 homes were affected.
In 2001... severe thunderstorm winds gusted to 60 mph at Denver
International Airport and to 70 mph... 7 miles southwest of
In 2008... microburst winds downed a large tree and some power
lines near a Denver apartment complex. Several of the
tenants' vehicles were damaged.
In 2009... a wet microburst produced very strong winds in and
just east of Denver. A peak wind gust of 69 mph was
measured 1.5 miles east of Denver. In addition... 1.50
inches of rain fell in 30 minutes. A peak wind gust to
68 mph was also observed near Byers. Southwest winds
gusted to 31 mph at Denver International Airport. The
Airport also recieved 0.30 inches of rainfall.
6 in 1876... the high temperature reached 101 degrees in
In 1943... four people were injured by lightning in Denver
during a severe early evening thunderstorm. At least
two houses were set on fire by the lightning. One house
had $1500 in damage and the other $1000.
In 1959... wind and lightning caused some damage in Metro
Denver. Wind gusts to 67 mph blew down power lines... signs...
and trees. Lightning struck several transformers... leaving
many areas without power.
In 1971... a microburst wind gust to 68 mph was recorded at
Stapleton International Airport.
In 1973... the temperature reached a high of 103 degrees.
This was the second consecutive day with a temperature
of 100 degrees or more.
In 1984... a weak tornado moved through eastern Aurora. About
10 homes sustained minor damage to roofs; some sections of
fence were thrown more than a block. Soft hail... an inch in
diameter... fell over central Aurora... and 1.35 inches of rain
fell in just 45 minutes... 5 miles east of Buckley field.
Torrential rain and hail stopped traffic on I-225 in central
Aurora for 15 minutes. Street flooding was widespread. A
wind gust to 57 mph was recorded in southeast Aurora. A
wind gust to 66 mph was reported at Front Range Airport near
Bennett. Northwest winds gusted to 44 mph at Stapleton
International Airport where only 1/8 inch hail fell.
In 1986... one inch diameter hail fell near Conifer in the
foothills west of Denver. The storm produced 1.50 inches of
rain in an hour with a storm total of 2.15 inches. Nearby
Buffalo Creek was drenched with 0.80 inch of rain in
just 10 minutes.
In 1996... 3/4 inch diameter hail fell in Bennett... east of
Denver. Hail... as large as 1 1/2 inches in diameter...
damaged several vehicles in the parking lot of the
Colorado Speedway Race Track near Dacono north of Denver.
Several trees were also damaged.
In 2001... a severe thunderstorm wind gust to 59 mph was
recorded at Denver International Airport... along with small
In 2009... hail up to 1 inch in diameter was observed near
In 2010... heavy rain caused flash flooding near Interstate 70
at the Byers Exit. Two feet of water was observed moving
across the bottom of exit ramp. One car was washed into a
tree but no one was injured. In addition... severe
thunderstorms produced hail up to 1 1/2 inches in diameter
near Franktown. At Denver International Airport... only 0.01
inches of rainfall was observed. A peak wind gust to 45
mph from the west was also recorded.
6-23 in 1901... a streak of 18 consecutive days of 90 degrees
tied for second with another streak set in the Summer of
1874. The record of 24 consecutive days was established in
the Summer of 2008.
7 in 1905... a thunderstorm produced sustained northeast winds
to 40 mph... but only a trace of rain.
In 1933... heavy cloudbursts during the afternoon in the
Idledale area and on Saw Mill gulch caused flash flooding
on Bear Creek resulting in 7 deaths. Flooding in Morrison
was compounded when a wall of water as high as 15 feet
swept down Mount Vernon creek. The flooding caused
extensive damage to The Bear Creek Canyon Highway.
In 1959... wind gusts to 45 mph at Stapleton Airport... but higher
in other areas... damaged power lines and buildings and caused
widespread minor damage from falling trees and broken limbs.
A field house under construction at Adams County High School
in Commerce City sustained severe damage.
In 1963... farm buildings east of Boulder were possibly damaged
by a small tornado as there were unconfirmed reports of a
funnel cloud in the area.
In 1967... a storm of cloudburst proportion caused damage from
flooding in southwest and south Denver. Unofficial reports
indicated rainfall of 2.00 inches in 30 minutes and more
than 3.00 inches total from the storm. Streets and
buildings were flooded by the heavy run-off. Hail in some
areas contributed to flooding by blocking storm drains.
Water accumulated 12 to 14 feet deep in several underpasses
and some street intersections. A Young woman drowned when
she tried to cross a flooded street and was swept off her
feet and trapped under a parked car. Water reached a depth
of 5 feet in the street. Police rescued numerous stranded
motorists. The roof and wall of a flat roofed store
building collapsed under the weight of deep water on the
roof. Cars were washed over curbs in many areas. In
southwest Metro Denver... 100 to 150 homes were flooded.
Hail caused damage in other areas of Denver and in Aurora.
Wind toppled trees in several areas. Snowplows were called
out to clear hail from some highways and runways at
Stapleton International Airport. Lightning damaged trees
and power lines and started a fire... which extensively
damaged an automobile dealership. Thunderstorm rainfall
totaled 0.83 inch at Stapleton International Airport.
In 1981... severe thunderstorms produced 3/4 inch hail over
east Denver. About 1 1/2 inches of rain fell in
Littleton. Thunderstorm winds gusted to 45 mph at
Stapleton International Airport.
In 1983... tennis Ball size hail fell about 5 miles north of
boulder; it was soft and caused no damage.
In 1987... a weak tornado touched down in Castle Rock. Several
weak tornadoes were observed in the area. No damage was
In 1988... lightning struck a sign at a bank near Louisville...
damaging it and causing a smoldering fire that resulted in
smoke damage to the bank and an adjacent building. Heavy
thunderstorm rain... accompanied by 1/2 inch diameter hail at
Stapleton International Airport... briefly reduced the
visibility to 1/4 mile. Rainfall totaled 1.41 inches...
but 1.12 inches fell in 32 minutes.
In 2001... severe thunderstorms dumped large hail across North
Metro Denver. Hail to 1 3/4 inches in diameter fell near
Erie with 7/8 inch hail measured in Thornton.
In 2004... a 9-year-old boy was struck by lightning while at
a playground in Arvada. The Umpire at a nearby baseball
game... along with 2 passers-by... administrated cpr and
resuscitated the boy who had quit breathing. The boy
suffered first and second degree Burns... but was released
from the hospital in less than 24 hours. A dry microburst
over Denver International Airport produced a peak wind gust
to 61 mph.
In 2006... up to 3 inches of heavy thunderstorm rainfall in
the Hayman wildfire burn area produced destructive flash
flooding along West Creek between the towns of Deckers and
Westcreek in southwest Douglas County. Horse Creek... which
drains into West Creek... swelled from a normally small creek
into a raging torrent... 25 to 30 feet deep and 300 feet wide.
The wall of water damaged or destroyed about 30 sections of
a 5 mile stretch of State Highway 67... which parallels West
Creek. Several homes were extensively damaged or destroyed.
No injuries were reported... but several people had to be
rescued... due to extensive damage to access roads and bridges
in the area. Reconstruction was estimated at 13.3 million
In 2011... heavy rain associated with a wet microbursts produced
over 3 inches of rain in 90 minutes across southeast Denver.
In Denver... some underpasses were flooded with several feet
of water which stranded motorists. As a result... the Fire
Department conducted at least 10 water rescues. Some
basements were inundated with up to 4 feet of water which
caused extensive flood damage. The Platte valley and
western model Railroad club's model train display in Union
Station was also damaged when 3 to 4 inches of mud and water
spilled over some of the command and control systems. Several
display modules and scenery pieces in a storage room were
also damaged. The entire display spanned more than one
thousand feet of track in a room that was once used as the
jail at Union Station in the 1900s. Urban and Small Stream
flooding was reported across the surrounding Denver suburbs.
The storm left about 28000 xcel customers without power when
the storm snapped trees and power lines. In addition... heavy
rain produced flash flooding in the Four Mile Canyon burn
scar. Four debris slides occurred along Four Mile Canyon
drive... including one that was 100 yards wide and 4 feet deep.
Several Rockslides were reported in lefthand and Boulder
canyons. At Denver International Airport... 1.04 inches of
rain was observed. A peak wind gust of 46 mph from the
southeast was also observed.
In 2012... heavy rain produced flash flooding in Boulder County
near Jamestown. James Canyon drive was closed after heavy
rain washed out a section of the roadway. Heavy rain washed
out a section of Magnolia Road... east-southeast of Nederland.
Nearby... a trained spotter 4 miles east-northeast of Nederland...
measured 2.20 inches of rainfall. Flash flooding was also
reported in the Fourmile burn area along Summerville Road.
In Dacono... in southern Weld County... the Colorado Department
of Transportation used snowplows to clear standing water... up
to 6 inches deep... from a section of Interstate 25. The
Interstate was closed in both directions for nearly two hours.
South of the Denver... in central Douglas County... flash
flooding was reported near Perry Park... where 2.5 inches of
rain fell in one hour.
7-25 in 1934... a streak of 15 consecutive days of 90 degrees
ranked 5th on the list of hot streaks. The record of
24 consecutive days was established in the Summer of
8 in 1905... a thunderstorm produced 0.82 inch of rainfall and
northeast winds sustained to 48 mph.
In 1977... strong winds turned over 2 light aircraft at Arapahoe
County Airport... now Centennial Airport.
In 1987... a weak tornado was observed near Bennett.
In 1988... three separate tornadoes were sighted near Bennett.
No damage was reported. One inch diameter hail was also
In 1991... lightning started three house fires in Castle Rock.
Damage totaled 13 thousand dollars. No injuries were
In 1993... a dry thunderstorm microburst wind gust to 55 mph
briefly reduced the surface visibility to 3 miles at
Stapleton International Airport.
In 1997... one construction worker was killed and two others
injured when a strong thunderstorm wind gust caused the
scaffolding they were standing on to collapse near Parker.
A dry microburst produced a wind gust to 54 mph at Denver
In 1998... heavy thunderstorm rain forced the closure of
Hampden Avenue between I-25 and Havana street in southeast
Denver. The high water made 2 or 3 lanes of the street
In 2001... severe thunderstorms produced large hail... damaging
winds... and heavy rain across south Metro Denver. Two
people received minor injuries when a severe thunderstorm
wind gust to 58 mph blew over several tents at the Cherry
Creek arts festival. The same storm caused the roof of a
hardware store in Tamarac square to collapse. One employee
received minor injuries when she was struck in the head by
falling debris. The combination of intense rain and wind
downed trees and power lines. Electrical power outages
affected 35 thousand homes and businesses. At least 50
trees in city Parks across south Denver were damaged. Up
to 4.50 inches of thunderstorm rain fell across portions of
southeast Metro Denver. The underpass at I-25 and Parker
Road was inundated with 5 feet of water. Several other
streets and underpasses in Aurora were also closed due to
high water. Heavy rain caused extensive damage to several
exhibits at the Cherry Creek arts festival. Flash flooding
occurred when heavy thunderstorm rainfall caused Toll Gate
creek to jump its banks. Several underpasses across south
Denver had to be closed due to high water. A man received
minor injuries when lightning struck a nearby tree at the
wellshire Golf course. Hail as large as 1 1/4 inches in
diameter fell in Englewood with 1 inch hail in the city of
Denver... and 3/4 inch hail in Littleton. Thunderstorm winds
gusted to 63 mph at Denver International Airport and to 62
mph in Englewood.
In 2005... a tornado touched down briefly near Brighton... but
caused no damage.
In 2011... severe thunderstorms produced hail... up to 1 inch
in diameter... and wind gusts to 60 mph across parts of
Adams... Broomfield and Denver counties. At Denver
International Airport... a peak wind gust to 59 mph from the
9 in 1872... a very brisk wind between 2:00 PM and 3:00 PM
spread a cloud of dust and sand into the city.
In 1874... northeast winds at sustained speeds up to 36 mph
blew immense clouds of dust from the prairie through the
streets of the city around mid-morning. The houses
across the street from the weather station were not
visible at the peak of the storm.
In 1875... heavy thunderstorm rains caused stream flooding...
which damaged nearly all railroads into the city. Rainfall
in the city was only 0.14 inch.
In 1953... heavy thunderstorm rains caused an estimated
2 million dollars damage from flooded stores and basements
across Metro Denver. The flood waters reached a depth of
3 feet on streets in some sections of the city... damaging
streets and automobiles. The heavy rainfall at Lowry Air
Force base totaled 3.90 inches. At Stapleton Airport where
the heavy rain briefly reduced the surface visibility to
1/2 mile... only 1.05 inches of rain were measured. North
winds gusting to 52 mph caused some damage in east Denver.
In 1982... two small tornadoes were spotted east of Rocky Flats...
and a tornado touched down briefly 5 miles east of Brighton.
No damage was reported.
In 1984... heavy rain fell over southern sections of Metro
Denver. Rainfall totaled 1.50 inches in just 15 minutes
between Littleton and Sedalia.
In 1987... a thunderstorm microburst produced a wind gust of 58
mph at Erie north of Denver.
In 1988... hail to 3/4 inch in diameter piled up 2 to 4 inches
deep in Idaho Springs. Some basements were flooded and
several thousand gallons of fuel were contaminated when
water flooded a gasoline storage tank. A tornado sighted
near Manilla 5 miles west of Bennett remained on the
ground for 9 minutes. No damage was reported.
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