Public Information Statement
Issued by NWS Denver/Boulder, CO
NOUS45 KBOU 100859
Public Information Statement
National Weather Service Denver/Boulder CO
259 AM MDT WED AUG 10 2016
...Today in metro Denver weather history...
8-10 In 1979...heavy thunderstorm rains on each of three
consecutive days dumped a total of 2.22 inches of rain
at Stapleton International Airport. The heaviest rain...
0.95 inches...fell on the 9th. Small hail to 1/8 inch
diameter fell on the 8th.
8-13 In 1875...clouds of grasshoppers were seen flying through
the air on the prevailing winds during each day.
9-10 In 2006...mid and high cloudiness overnight on both days
resulted in two temperature records. The low temperature
of 71 degrees on the 9th was a record high minimum for
the date. The low temperature of 68 degrees on the 10th
equaled the record high minimum for the date first set
10 In 1924...0.01 inch of rain fell over downtown Denver. This
along with the 0.01 inch of rainfall on the 4th was the
only rainfall of the month...making this the driest August
on record in the city.
In 1962...the high temperature reached 100 degrees at
In 1970...hail stones to 1 inch in diameter were reported in
the Fort Lupton area.
In 1972...dry thunderstorm microburst winds gusting to 46 mph
briefly reduced the surface visibility to 3/4 mile in
blowing dust at Stapleton International Airport.
In 1978...lightning struck two men in Aurora...killing one and
injuring the other.
In 1982...a tornado was sighted near Castle Rock and remained
on the ground for 10 minutes. Wind gusts to 60 mph were
reported in Castle Rock. No damage was reported.
In 1994...heavy thunderstorm rains caused flash flooding on
Lena Gulch in west metro Denver. Damage was estimated at
50 thousand dollars. Lightning struck a house in
Westminster...causing a small attic fire.
In 1996...strong thunderstorm winds toppled a tent at a
company picnic in Westminster. Five people received minor
injuries when the tent collapsed. Two cars nearby were
also damaged by flying debris. A weak tornado (F0)...first
sighted near Denver International Airport...traveled east
to near Bennett and Strasburg. No significant damage was
In 1998...heavy rain caused flooding and flash flooding
problems over southwest metro Denver. An observer in
Lakewood measured 3.26 inches of rainfall in an hour.
Several streets were flooded in central Lakewood. In
addition...a trailer park along Lena Gulch in Wheat Ridge
was evacuated due to high waters. One inch diameter
hail fell near Roggen.
In 1999...thunderstorm-producing tornadoes...damaging straight
line winds...heavy rain...and hail hammered metro Denver. In
the city...small hail and heavy rainfall...up to 2.50 inches
an hour...caused a 20-foot by 50-foot section of the roof to
collapse at a furniture warehouse. Damage to the warehouse
was estimated at 1 million dollars. Heavy rain also flooded
several underpasses with up to 3 feet of water...which
resulted in a number of stalled vehicles. In Fort Lupton...a
tornado bounced across the area. Spotty damage was reported
along a 5-mile path as trees...power poles...and lines were
downed. In addition...an empty semi-trailer was overturned
onto another vehicle northeast of the town. Thunderstorm
winds gusted to 81 mph south of Fort Lupton.
In 2004...severe thunderstorms pummeled metro Denver with
large hail. Hail up to 3 inches in diameter was measured
10 miles east of Castle Rock. Two inch diameter hail fell
in Louisville...10 miles north of Hudson...and 1 mile east of
Brighton. Hail to 1.75 inches was reported in Englewood...
1 mile south of Ft. Lupton...and 8 miles east of Boulder.
Hail to 1.50 inches was reported around Boulder...near
Broomfield...and in Lafayette...Thornton and Greenwood Village.
Hail from 3/4 to 1 inch in diameter was found in Broomfield...
Brighton...Castle Rock...Denver and Thornton...and near Longmont...
Northglenn...Greenwood Village...Morrison...and Wheat Ridge.
Severe thunderstorm wind gusts were recorded to 66 mph in
Parker and to 60 mph 5 miles northeast of Boulder. There
were no damage estimates from the hail or wind.