444
NOUS45 KBOU 220859
PNSBOU
COZ030>051-222300-
PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
259 AM MDT SAT AUG 22 2026
..TODAY IN METRO DENVER WEATHER HISTORY
19-30 IN 1875...GRASSHOPPERS APPEARED IN GREAT NUMBERS AT 10:00 AM
ON THE 19TH AND CONTINUED THROUGH THE 30TH. 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.
22 IN 1898...AN APPARENT THUNDERSTORM PRODUCED SOUTHWEST
SUSTAINED WINDS TO 40 MPH WITH GUSTS TO 43 MPH.
IN 1903...A LATE AFTERNOON THUNDERSTORM PRODUCED RAIN...HAIL...
AND EAST WINDS SUSTAINED TO 40 MPH WITH GUSTS TO 44 MPH.
IN 1904...THE LOWEST RECORDED TEMPERATURE IN AUGUST...40
DEGREES...OCCURRED. THE SAME TEMPERATURE ALSO OCCURRED ON
THREE CONSECUTIVE DAYS...AUGUST 24...25...AND 26 IN 1910.
IN 1965...HEAVY RAIN AND HAIL CAUSED SOME DAMAGE FROM FLOODING
OVER NORTHERN DOUGLAS COUNTY FROM CASTLE ROCK TO FRANKTOWN.
IN 1981...THUNDERSTORMS MOVED ACROSS METRO DENVER. AT LEAST
5 FUNNEL CLOUD SIGHTINGS WERE REPORTED. FUNNEL CLOUDS
WERE SEEN AT 96TH AVE. AND SHERIDAN BLVD. AND AT 92ND AVE.
AND FEDERAL BLVD. IN WESTMINSTER AND 7 MILES NORTH OF
STAPLETON INTERNATIONAL AIRPORT. LIGHTNING INJURED TWO
PEOPLE IN BOULDER. A QUARTER INCH OF RAIN FELL IN JUST
5 MINUTES IN BRIGHTON. UP TO 3/4 INCH OF RAIN DOUSED
PARKER IN 30 MINUTES.
IN 1983...3/4 INCH DIAMETER HAIL WAS REPORTED AT KITTREDGE...
ALONG WITH 0.60 INCH OF RAIN IN 25 MINUTES.
IN 1984...A THUNDERSTORM DUMPED 4 INCHES OF RAIN ON BRIGHTON
IN 90 MINUTES...CAUSING EXTENSIVE STREET FLOODING IN THE
DOWNTOWN AREA.
IN 1987...OVER AN INCH OF RAIN FELL IN 24 HOURS THROUGHOUT
MOST OF METRO DENVER. A PUBLIC LIBRARY SUFFERED WATER
DAMAGE TO THE CEILING...CARPET...AND A FEW BOOKS. RAINFALL
WAS 0.76 INCH AT STAPLETON INTERNATIONAL AIRPORT.
IN 1990...LIGHTNING KNOCKED OUT POWER TO ABOUT 2500 HOMES IN
LAKEWOOD FOR ABOUT AN HOUR.
IN 1991...NATIONAL WEATHER SERVICE PERSONNEL AT STAPLETON
INTERNATIONAL AIRPORT SIGHTED AN APPARENT TORNADO BRIEFLY
ON THE GROUND 3 MILES WEST-NORTHWEST OF THE AIRPORT. NO
DAMAGE WAS REPORTED.
IN 1995...LIGHTNING STRUCK 3 ELECTRICAL POWER SUBSTATIONS IN
LOUISVILLE. RESIDENCES OF MORE THAN 4500 PEOPLE WERE
WITHOUT POWER FROM 30 MINUTES TO MORE THAN AN HOUR.
IN 1996...BETWEEN 1 AND 3 INCHES OF RAIN FELL ACROSS METRO
DENVER. AS A RESULT...SEVERAL LOW LYING AREAS WERE FLOODED.
A BICYCLIST WAS SWEPT INTO A FAST MOVING CREEK WHEN HE
TRIED TO CROSS A FLOODED BIKE PATH. THE MAN WAS WASHED
DOWNSTREAM ABOUT 15 FEET BEFORE GETTING SNAGGED BY A TREE
STUMP. HE AND A MAN WHO TRIED TO RESCUE HIM RECEIVED
MINOR INJURIES. THE HEAVY RAIN CAUSED NUMEROUS POWER
OUTAGES...FALSE FIRE ALARMS...AND TRAFFIC ACCIDENTS. IN
LAKEWOOD...TELEPHONE SERVICE TO AROUND 60 THOUSAND
RESIDENTS WAS KNOCKED OUT WHEN A SWITCHING CENTER WAS
FLOODED. FUNNEL CLOUDS WERE SIGHTED NEAR CHATFIELD
RESERVOIR AND HIGHLANDS RANCH.
IN 2000...LIGHTNING SPARKED A BLAZE WHICH GUTTED A 10-UNIT
APARTMENT BUILDING IN HIGHLANDS RANCH. TWENTY-EIGHT
PEOPLE WERE LEFT HOMELESS. DAMAGE WAS ESTIMATED AT
2 MILLION DOLLARS.
IN 2007...SEVERE THUNDERSTORMS PRODUCED LARGE HAIL...UP TO
1 1/4 INCHES IN DIAMETER...IN THE VICINITIES OF CASTLE ROCK...
ELIZABETH AND FRANKTOWN.
IN 2013...FLASH FLOODING OCCURRED IN CENTRAL DOUGLAS COUNTY
WITH NUMEROUS ROAD CLOSURES REPORTED. ONE OF THE CLOSURES
OCCURRED AT THE TOMAH ROAD EXIT ALONG I-25...SOUTH OF
CASTLE ROCK. THE CLOSURE BACKED UP ALL I-25 THE WAY TO
CASTLE ROCK. AT DENVER INTERNATIONAL AIRPORT...1.94 INCHES
OF PRECIPITATION WAS RECORDED...WHICH SET A NEW RECORD
RAINFALL FOR THE DATE. THE OLD RECORD WAS 0.75 INCHES...
SET BACK IN 1953.
22-24 IN 1987...FROM THE 22ND TO THE 24TH...SOME LOCATIONS IN METRO
DENVER HAD A TOTAL 3-DAY RAINFALL OF 2 TO 4 INCHES.
RAINFALL TOTALED 0.96 INCH AT STAPLETON INTERNATIONAL
AIRPORT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page