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NOUS45 KBOU 240859
PNSBOU
COZ030>051-242300-
PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
259 AM MDT MON AUG 24 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.
22-24 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.
24 IN 1880...A THUNDERSTORM PRODUCED VIVID LIGHTNING AND HEAVY
RAINFALL...WHICH CAUSED FLOODING OVER THE EASTERN PART OF
THE CITY INCLUDING THE BRICK YARDS. THERE WAS NO RAINFALL
RECORDED IN DOWNTOWN DENVER.
IN 1910...AN APPARENT DRY COLD FRONT CAUSED A REMARKABLE DROP
IN TEMPERATURE. FROM 3:00 PM UNTIL MIDNIGHT THE TEMPERATURE
FELL FROM A HIGH OF 93 DEGREES TO A LOW OF 40 DEGREES.
NORTHEAST WINDS WERE SUSTAINED TO 44 MPH DURING THE LATE
AFTERNOON.
IN 1946...HEAVY RAIN NEAR IDLEDALE CAUSED FLOODING ON BEAR
CREEK AT MORRISON...WHICH RESULTED IN ONE DEATH WHEN A
WOMAN WAS SWEPT FROM HER STRANDED CAR AND DROWNED.
IN 1973...STRONG WINDS BLEW DOWN A FEW POWER LINES AND HAIL UP
TO 3/4 INCH DIAMETER FELL IN SOUTHEAST AURORA.
IN 1984...HEAVY RAIN HIT THE SOUTH DENVER AREA. OVER AN INCH
FELL IN LESS THAN AN HOUR AT BOTH CASTLE ROCK AND SEDALIA.
IN 1992...HEAVY RAINS CAUSED FLASH FLOODING ACROSS PARTS OF
METRO DENVER. RAINFALL AMOUNTS OF 1 TO 3 INCHES FELL WITH
THE HARDEST HIT AREAS BEING THE SOUTHWEST AND CENTRAL PARTS
OF METRO DENVER. BEAR CREEK ROSE ABOVE BANKFULL NEAR
IDLEDALE WITH FLOOD WATERS MOVING INTO SOUTHWEST METRO
DENVER. MUD AND ROCK SLIDES ALONG COLORADO HIGHWAY 74 WEST
OF MORRISON WERE REPORTED. THE CONFLUENCE OF CHERRY CREEK
AND THE SOUTH PLATTE RIVER IN DOWNTOWN DENVER ALSO WENT OUT
OF ITS BANKS...FLOODING BIKE PATHS. RAINFALL TOTALED 1.98
INCHES AT STAPLETON INTERNATIONAL AIRPORT WHERE LIGHT TO
MODERATE RAIN FELL MOST OF THE DAY. HEAVY RAIN AND FOG
BRIEFLY REDUCED THE SURFACE VISIBILITY TO 1 1/2 MILES. THE
TEMPERATURE CLIMBED TO A HIGH OF ONLY 58 DEGREES...WHICH WAS
A RECORD LOW MAXIMUM FOR THE DATE.
IN 2002...HAIL TO 7/8 INCH IN DIAMETER WAS MEASURED IN
SOUTHWEST DENVER.
IN 2008...SEVERAL LANDSPOUT TORNADOES DEVELOPED ALONG A BOUNDARY
TO THE SOUTHEAST OF THE DENVER METROPOLITAN AREA DURING THE
DEMOCRATIC NATIONAL CONVENTION. IN NORTHWEST ELBERT COUNTY...
MINOR DAMAGE WAS REPORTED. THE DAMAGE CONSISTED OF DOWNED
POWER LINES...BROKEN WINDOWS AND AN OUT BUILDING. SEVERE
THUNDERSTORMS ALSO PRODUCED VERY HEAVY RAIN AND LARGE HAIL...
UP TO ONE INCH IN DIAMETER. IN SOUTHWEST DOUGLAS COUNTY...
HEAVY RAIN CAUSED FLASH FLOODING NEAR THE TOWN OF WESTCREEK.
A MUDSLIDE CLOSED STATE HIGHWAY 67. THE ROAD IN THE YMCA CAMP
SHADY BROOK WAS ALSO WASHED OUT AND SOME BRIDGES WERE DAMAGED.
24-26 IN 1910...THE LOWEST TEMPERATURE EVER RECORDED IN AUGUST...40
DEGREES...OCCURRED ON THE 24TH...25TH AND 26TH...AS WELL AS ON
AUGUST 22...1904. THE UNUSUALLY COLD WEATHER FOR SO EARLY IN
THE SEASON BROUGHT SUB-FREEZING MINIMUM TEMPERATURES TO MUCH
OF THE COLORADO NORTHEASTERN PLAINS.
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