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000
NOUS45 KBOU 030045
PNSBOU
COZ030>051-032300-
PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
645 PM MDT SAT MAY 02 2009
...THIS WEEK IN METRO DENVER WEATHER HISTORY...
1-5 IN 1898...SNOWFALL TOTALED 15.5 INCHES IN DOWNTOWN DENVER.
MOST OF THE SNOW...6.2 INCHES...FELL ON THE 3RD. MOST OF
THE SNOW MELTED AS IT FELL. THE GREATEST SNOW DEPTH ON
THE GROUND WAS ONLY 2.5 INCHES ON THE 3RD AT 8:00 PM.
THIS WAS THE ONLY SNOWFALL DURING THE MONTH. NORTHEAST
WINDS WERE SUSTAINED TO 22 MPH ON THE 1ST.
2-3 IN 1979...HEAVY RAIN CHANGED TO SNOW ON THE 2ND. SNOWFALL
TOTALED 3.9 INCHES AT STAPLETON INTERNATIONAL AIRPORT...
WHERE NORTHWEST WINDS GUSTED TO 26 MPH. THE GREATEST
DEPTH OF SNOW ON THE GROUND WAS ONLY 1 INCH AT MIDDAY ON
THE 2ND DUE TO MELTING. TOTAL PRECIPITATION FOR THE 2
DAYS WAS 1.65 INCHES.
2-4 IN 1987...A SLOW MOVING STORM BROUGHT RAIN...WIND...AND SNOW
TO METRO DENVER. RAINFALL TOTALED 1.04 INCHES AT
STAPLETON INTERNATIONAL AIRPORT WHERE NORTH WINDS GUSTED
TO 48 MPH ON THE 3RD. THE FOOTHILLS RECEIVED 5 TO 10 INCHES
OF SNOW.
2-5 IN 2001...A VERY SLOW MOVING PACIFIC STORM SYSTEM BECAME PARKED
NEAR THE FOUR CORNERS REGION...WHICH ALLOWED HEAVY SNOW TO
DEVELOP ABOVE 6500 FEET IN THE FOOTHILLS WITH A MIX OF RAIN
AND SNOW OVER LOWER ELEVATIONS OF METRO DENVER. SNOWFALL
TOTALS INCLUDED: 21 INCHES ATOP CROW HILL AND AT IDAHO
SPRINGS; 19 INCHES NEAR BLACKHAWK; AND 18 INCHES IN COAL
CREEK CANYON...GENESEE...AND 11 MILES SOUTHWEST OF MORRISON.
SNOWFALL TOTALED 6.2 INCHES AT THE SITE OF THE FORMER
STAPLETON INTERNATIONAL AIRPORT. PRECIPITATION (RAIN AND
MELTED SNOW) TOTALED 2.09 INCHES AT DENVER INTERNATIONAL
AIRPORT WHERE NORTH WINDS GUSTED TO 30 MPH ON THE 2ND.
3 IN 1898...HEAVY SNOWFALL OF 6.2 INCHES FELL OVER DOWNTOWN
DENVER. MOST OF THE SNOW MELTED AS IT FELL. THE GREATEST
SNOW DEPTH ON THE GROUND WAS 2.5 INCHES DURING THE EVENING.
IN 1907...THE ALL-TIME LOWEST RECORDED TEMPERATURE IN THE
MONTH OF MAY...19 DEGREES...OCCURRED.
IN 1925...AN APPARENT MICROBURST PRODUCED SUSTAINED NORTHEAST
WINDS TO 44 MPH WITH GUSTS TO 52 MPH. RAINFALL WAS ONLY
0.01 INCH IN DOWNTOWN DENVER.
IN 1981...LIGHTNING STRUCK 9 GOLFERS AT THE SOUTH SUBURBAN
GOLF COURSE. NONE WERE INJURED SERIOUSLY.
IN 1983...HAIL 1 1/2 INCHES IN DIAMETER FELL AT GREEN
MOUNTAIN WEST OF LAKEWOOD...WITH 3/4 INCH STONES REPORTED
IN LAKEWOOD.
IN 1986...A THUNDERSTORM WIND GUST TO 51 MPH WAS RECORDED AT
STAPLETON INTERNATIONAL AIRPORT.
3-5 IN 1908...RAIN CHANGED TO SNOW ON THE EVENING OF THE 3RD
AND CONTINUED THROUGH THE EARLY EVENING OF THE 5TH.
SNOWFALL TOTALED 10.0 INCHES OVER DOWNTOWN DENVER.
THIS WAS THE LAST MEASURABLE SNOW OF THE SEASON.
PRECIPITATION TOTALED 1.51 INCHES. NORTH WINDS WERE
SUSTAINED TO 23 MPH ON THE 3RD...33 MPH ON THE 4TH...AND
21 MPH ON THE 5TH. THREE TEMPERATURE RECORDS WERE SET.
HIGH TEMPERATURES OF 30 DEGREES ON THE 4TH AND 38 DEGREES
ON THE 5TH WERE RECORD LOW MAXIMUM TEMPERATURES FOR THE
DATES. THE READING ON THE 4TH WAS ALSO THE ALL-TIME
RECORD LOW MAXIMUM FOR THE MONTH OF MAY.
IN 2007...A SLOW MOVING PACIFIC STORM SYSTEM...FROM THE
DESERT SOUTHWEST...BROUGHT A PERIOD OF UNSETTLED WEATHER
TO THE REGION. DURING THE 3-DAY PERIOD...LOCALLY HEAVY
SNOW WAS REPORTED OVER PARTS OF THE FRONT RANGE FOOTHILLS.
STORM TOTALS INCLUDED: 15 INCHES NEAR CONIFER...14.5
INCHES WEST OF JAMESTOWN...13.5 INCHES; 6 MILES SOUTHWEST
OF EVERGREEN...AND 12.5 INCHES AT PINE JUNCTION. SEVERE
THUNDERSTORMS...PRODUCING LARGE HAIL...UP TO ONE INCH IN
DIAMETER WERE OBSERVED IN THE VICINITY OF BOULDER AND
HUDSON. LIGHTNING STRUCK A RESIDENCE IN JEFFERSON COUNTY.
THE ROOF WAS HIT...CAUSING THE ATTIC TO CATCH FIRE.
AT DENVER INTERNATIONAL AIRPORT...LIGHTNING STRUCK A
UNITED AIRLINES JET AS IT WAS PUSHING AWAY FROM
THE GATE. THE PASSENGERS WERE TAKEN OFF THE JET AND PUT
ON ANOTHER PLANE.
4 IN 1893...NORTHWEST WINDS WERE SUSTAINED TO 42 MPH.
IN 1971...A FUNNEL CLOUD WAS SIGHTED 10 MILES SOUTHWEST
OF BOULDER. HAIL STONES TO 1 INCH IN DIAMETER FELL IN
SOUTHEAST DENVER...BUT CAUSED ONLY MINOR DAMAGE.
IN 2006...A SEVERE THUNDERSTORM PRODUCED HAIL TO 1.00 INCH
IN DIAMETER IN AURORA NEAR CHERRY CREEK RESERVOIR.
4-5 IN 1986...HIGH WINDS BUFFETED THE FOOTHILLS. WIND SPEEDS OF
60 TO 75 MPH WERE RECORDED IN BOULDER. AT STAPLETON
INTERNATIONAL AIRPORT...WEST WINDS GUSTED TO 45 MPH ON THE
4TH AND TO 40 MPH ON THE 5TH.
IN 2000...A BRIEF WARM SPELL RESULTED IN SETTING TWO DAILY
HIGH TEMPERATURE RECORDS. THE TEMPERATURE CLIMBED TO
HIGHS OF 87 DEGREES ON THE 4TH AND 89 DEGREES ON THE 5TH.
4-8 IN 1969...HEAVY RAINS CAUSED FLOODING ON BOULDER CREEK
IN BOULDER...WHICH RESULTED IN ONE DEATH ON THE 7TH.
FLOODING ALSO OCCURRED ON BEAR CREEK IN SHERIDAN AND
ON THE SOUTH PLATTE RIVER IN DENVER. RAIN OVER MOST
OF THE EASTERN FOOTHILLS STARTED LATE ON THE 4TH AND
CONTINUED WITH ONLY BRIEF INTERRUPTIONS IN MANY AREAS
UNTIL THE MORNING OF THE 8TH. VERY HIGH RATES OF
RAINFALL OCCURRED ON THE 6TH AND 7TH WITH THE GREATEST
INTENSITIES IN A BAND ALONG THE FOOTHILLS FROM ABOUT 25
MILES SOUTHWEST OF DENVER NORTHWARD TO ESTES PARK. STORM
TOTALS BY BOTH OFFICIAL AND UNOFFICIAL MEASUREMENTS
EXCEEDED 10 INCHES OVER MUCH OF THIS AREA AND WERE OVER 12
INCHES IN SOME LOCALITIES. HEAVY SNOW FELL IN THE HIGHER
MOUNTAINS AND IN THE FOOTHILLS LATER IN THE PERIOD. THE
SATURATION OF THE SOIL RESULTED IN NUMEROUS ROCK AND LAND
SLIDES...AND THE HEAVY RUN-OFF CAUSED SEVERE DAMAGE ALONG
MANY STREAMS AND FLOODING ON THE SOUTH PLATTE RIVER. MANY
FOOTHILL COMMUNITIES WERE ISOLATED AS HIGHWAYS WERE BLOCKED
AND COMMUNICATIONS DISRUPTED. ROADS WERE SEVERELY DAMAGED
OVER A WIDE AREA...AND A LARGE NUMBER OF BRIDGES WASHED OUT.
MANY ROADS WERE CLOSED DUE TO THE DANGER FROM FALLING
ROCKS. A BUILDING IN GEORGETOWN COLLAPSED FROM THE WEIGHT
OF HEAVY WET SNOW. IN BOULDER...A MAN DROWNED WHEN CAUGHT
BY THE FLOODING WATERS OF BOULDER CREEK...AND A PATROLMAN WAS
INJURED. RAINFALL TOTALED 7.60 INCHES IN BOULDER WITH
9.34 INCHES RECORDED AT THE PUBLIC SERVICE COMPANY ELECTRIC
PLANT IN BOULDER CANYON. IN MORRISON...RAINFALL TOTALED
11.27 INCHES IN 4 DAYS. HEAVY RAINFALL TOTALED 4.68 INCHES
AT STAPLETON INTERNATIONAL AIRPORT OVER 3 DAYS FROM THE 5TH
THROUGH THE 7TH. RAINFALL OF 3.14 INCHES WAS RECORDED IN 24
HOURS ON THE 6TH AND 7TH. DOWNSTREAM FLOODING CONTINUED
ALONG THE SOUTH PLATTE RIVER UNTIL THE 12TH WHEN THE FLOOD
CREST REACHED THE NEBRASKA LINE.
5 IN 1903...APPARENT POST-FRONTAL NORTHEAST WINDS WERE SUSTAINED
TO 48 MPH WITH GUSTS TO 60 MPH.
IN 1950...A NORTHWEST WIND GUST TO 52 MPH WAS RECORDED AT
STAPLETON AIRPORT.
IN 1969...A FUNNEL CLOUD WAS OBSERVED FOR 2 TO 3 MINUTES JUST
NORTH OF PARKER. TWO OTHER FUNNEL CLOUDS WERE SIGHTED IN
THE SAME AREA. THE PUBLIC SIGHTED A TORNADO 15 MILES
EAST OF STAPLETON INTERNATIONAL AIRPORT. NO DAMAGE WAS
REPORTED.
5-6 IN 1907...RAIN CHANGED TO SNOW ON THE 5TH...CONTINUED THROUGH
THE NIGHT...AND TOTALED 3.50 INCHES. NORTHEAST WINDS WERE
SUSTAINED TO 15 MPH ON THE 5TH.
IN 1917...POST-FRONTAL RAIN CHANGED TO HEAVY SNOW AND TOTALED
12.5 INCHES OVER DOWNTOWN DENVER. MOST OF THE SNOW...
12.0 INCHES...FELL ON THE 5TH AND THIS WAS THE GREATEST
24-HOUR SNOWFALL EVER MEASURED DURING THE MONTH OF MAY.
THIS WAS ALSO THE ONLY MEASURABLE SNOW OF THE MONTH THAT
YEAR. LOW TEMPERATURES OF 27 DEGREES ON THE 5TH AND 23
DEGREES ON THE 6TH WERE RECORD MINIMUMS FOR THE DATES.
HIGH TEMPERATURES ON BOTH DAYS WERE IN THE LOWER 40`S.
SOUTHEAST WINDS WERE SUSTAINED TO 24 MPH WITH AN EXTREME
VELOCITY TO 26 MPH.
IN 1964...HIGH WINDS GUSTED TO 54 MPH IN BOULDER AND TO 80 MPH
AT JEFFERSON COUNTY AIRPORT NEAR BROOMFIELD. WIND GUSTS OF
50 TO 60 MPH WERE COMMON OVER ALL OF EASTERN COLORADO.
BUILDINGS...POWER LINES...TREES...AND VEHICLES WERE DAMAGED BY
THE WIND. SOUTH-SOUTHWEST WIND GUSTS TO 54 MPH CAUSED SOME
BLOWING DUST AT STAPLETON INTERNATIONAL AIRPORT WHERE THE
VISIBILITY WAS BRIEFLY REDUCED TO 2 MILES.
IN 1973...A HEAVY DRIVING RAIN STORM WITH EMBEDDED
THUNDERSTORMS...PRODUCED 1 TO 5 INCHES OF RAIN AND CAUSED
LOCAL FLASH FLOODING ALONG THE EAST SLOPES OF THE FRONT
RANGE. THE GREATEST FLASH FLOODING OCCURRED IN METRO
DENVER WHERE RAINFALL TOTALED 3.56 INCHES AT STAPLETON
INTERNATIONAL AIRPORT. FLOODING IN METRO DENVER OCCURRED
ON CLEAR CREEK AND THE SOUTH PLATTE RIVER...ALREADY SWOLLEN
FROM HEAVY SNOWMELT. NUMEROUS BASEMENTS WERE FLOODED...
ROADS AND STREETS WERE WASHED OUT...A BRIDGE WAS DEMOLISHED...
AND MISCELLANEOUS OTHER DAMAGE WAS REPORTED. NORTH WINDS
GUSTED TO 39 MPH AT STAPLETON INTERNATIONAL AIRPORT DURING
THE STORM. THE STORM PRODUCED MAJOR DOWNSTREAM FLOODING
ALONG THE SOUTH PLATTE RIVER ALL THE WAY TO THE NEBRASKA
BORDER DURING THE NEXT TWO WEEKS. ONE PERSON DIED AND
TOTAL DAMAGE WAS ESTIMATED AT AROUND 120 MILLION DOLLARS.
IN 1978...HEAVY WET SNOW OF AROUND 24 INCHES COLLAPSED AN
OFFICE AND HOTEL BUILDING IN BOULDER. MANY CARS WERE
ABANDONED IN THE CITY. DENVER RECEIVED 14 INCHES OF
HEAVY WET SNOW WITH EVERGREEN AND GOLDEN REPORTING 12
INCHES. SNOWFALL TOTALED 12.4 INCHES AT STAPLETON
INTERNATIONAL AIRPORT WITH A TOTAL ACCUMULATION OF SNOW
ON THE GROUND OF 8 INCHES DUE TO MELTING. SOUTHEAST WINDS
GUSTED TO 23 MPH ON THE 5TH. TEMPERATURES BOTH DAYS
REMAINED IN THE LOWER TO MID 30`S.
6 IN 1876...HEAVY SNOW FELL DURING THE NIGHT AND ENDED DURING
THE MORNING...BUT NO AMOUNT WAS RECORDED. LIGHT HAIL FELL
BRIEFLY DURING THE LATE AFTERNOON. PRECIPITATION FOR THE
DAY TOTALED 1.05 INCH WHICH WOULD GIVE AN ESTIMATED SNOWFALL
OF NEARLY 11 INCHES HAD ALL OF THE PRECIPITATION BEEN SNOW.
IN 1889...NORTHWEST WINDS WERE SUSTAINED TO 45 MPH IN THE CITY.
IN 1893...HEAVY SNOW OF 8.9 INCHES FELL OVER DOWNTOWN DENVER.
ONCE ON THE GROUND...THE SNOW MELTED RAPIDLY. THIS WAS THE
ONLY SNOW OF THE MONTH. NORTHWEST WINDS WERE SUSTAINED TO
20 MPH.
IN 1904...WEST WINDS WERE SUSTAINED TO 45 MPH WITH AN EXTREME
VELOCITY TO 46 MPH.
IN 1914...AN APPARENT DRY MICROBURST PRODUCED SUSTAINED NORTH
WINDS TO 44 MPH WITH GUSTS AS HIGH AS 50 MPH.
IN 1920...A THUNDERSTORM PRODUCED HAIL AND 0.55 INCH OF RAIN.
THE HAIL OF UNKNOWN SIZE COVERED THE GROUND.
IN 1921...THUNDERSTORM WINDS WERE SUSTAINED TO 42 MPH WITH
GUSTS TO 44 MPH. RAINFALL WAS ONLY 0.17 INCH.
IN 1936...A LIGHT TO MODERATE DUSTSTORM MOVED IN FROM THE
EAST ON SOUTHEAST WINDS AND LASTED MOST OF THE DAY. THE
DUST REDUCED THE VISIBILITY TO TWO MILES AT TIMES. WINDS
FROM THE NORTHWEST SUSTAINED TO 21 MPH SWEPT THE DUST OUT
OF THE CITY DURING THE LATE AFTERNOON.
IN 1966...A FUNNEL CLOUD WAS SIGHTED FOR 7 MINUTES TO THE
SOUTHWEST OF STAPLETON INTERNATIONAL AIRPORT. THE FUNNEL
APPEARED TO BE PICKING UP DUST FROM THE GROUND...BUT WAS
TOO DISTANT TO TELL. NO DAMAGE WAS REPORTED.
IN 1968...A THUNDERSTORM WIND GUST TO 53 MPH WAS RECORDED AT
STAPLETON INTERNATIONAL AIRPORT.
IN 1988...HIGH WINDS RAKED THE STATE. WIND GUSTS RANGED FROM
60 TO 80 MPH IN BOULDER...AURORA...AND AT CENTENNIAL AIRPORT.
SOUTH-SOUTHWEST WINDS TO 53 MPH WERE RECORDED AT STAPLETON
INTERNATIONAL AIRPORT. ACROSS METRO DENVER...THE STRONG
WINDS KNOCKED WINDOWS OUT OF BUILDINGS...DOWNED POWER POLES
AND WIRES AND SOME FENCES...UNROOFED SEVERAL BUILDINGS...AND
DAMAGED SIGNS.
IN 1997...STRONG WINDS FROM A DRY MICROBURST BLEW AN EMPTY
18-WHEELER ON ITS SIDE IN THE NORTHBOUND LANE OF I-25
NORTH OF DENVER NEAR THE BRIGHTON EXIT. THERE WERE NO
INJURIES. WEST WINDS GUSTED TO 46 MPH AT DENVER
INTERNATIONAL AIRPORT.
6-7 IN 1873...SNOWFALL TOTALED 8.9 INCHES IN DOWNTOWN DENVER.
MOST OF THE SNOW FELL ON THE 6TH.
7 IN 1904...WEST WINDS WERE SUSTAINED TO 48 MPH WITH GUSTS TO
60 MPH. A SHOWER PRODUCED 0.16 INCH OF RAIN.
IN 1953...A MICROBURST CAUSED A BRIEF WIND GUST TO 58 MPH AT
STAPLETON AIRPORT.
IN 1958...3/4 INCH DIAMETER HAIL FELL OVER SOUTH METRO DENVER...
10 MILES SOUTHWEST OF STAPLETON AIRPORT.
IN 1977...BASEBALL SIZE HAIL DAMAGED WINDOWS IN WHEAT RIDGE.
HAIL WAS 4 INCHES DEEP ON THE GROUND IN ARVADA. HAIL 3/4
TO 1 INCH DIAMETER FELL IN WESTMINSTER AND KITTREDGE.
IN 1990...A FAST MOVING COLD FRONT PRODUCED WIND GUSTS OF 40
TO 60 MPH. BRIGHTON REPORTED A WIND GUST TO 57 MPH...WHILE
NORTH WIND GUSTS TO 44 MPH WERE MEASURED AT STAPLETON
INTERNATIONAL AIRPORT.
IN 1995...SEVERE THUNDERSTORMS STRUCK AURORA. HAIL PILED 4 TO
5 INCHES DEEP IN THE VICINITY OF QUINCY RESERVOIR IN SOUTH
AURORA. LIGHTNING STRUCK AN AURORA POLICE COMMUNICATIONS
TOWER CAUSING SIGNIFICANT MALFUNCTION TO THE PRIMARY
SYSTEM. MINOR DAMAGE WAS SUSTAINED WHEN LIGHTNING STRUCK
AN APARTMENT BUILDING. HAIL...UP TO 1 1/4 INCHES IN
DIAMETER...WHILE SOFT AND SLUSHY...ACCUMULATED UP TO 6 INCHES
DEEP IN 15 MINUTES. MANY STREETS WERE CLOSED FOR AN HOUR
OR MORE DUE TO FLOODING CAUSED BY HEAVY RAIN AND MELTING
HAIL STONES. SOME TREES WERE STRIPPED OF THEIR LEAVES.
HAIL AS LARGE AS 1/2 INCH DIAMETER WAS MEASURED AT DENVER
INTERNATIONAL AIRPORT WHERE A FUNNEL CLOUD WAS SIGHTED.
IN 2003...A TORNADO TOUCHED DOWN BRIEFLY NEAR BENNETT...BUT
DID NO REPORTED DAMAGE.
IN 2005...SEVERE THUNDERSTORMS PRODUCED 3/4 INCH HAIL NEAR
BRIGHTON AND A THUNDERSTORM WIND GUST TO 60 MPH NEAR
FORT LUPTON.
7-8 IN 1958...RAINFALL TOTALED 2.50 INCHES AT STAPLETON AIRPORT.
8 IN 1873...A VERY LIGHT RAIN FELL UNTIL 5:00 AM...WHEN IT
TURNED INTO LIGHT SNOW AND SLEET AND WAS ACCOMPANIED BY
BRISK NORTHEAST WINDS. THE SNOW FROZE AS IT FELL...
BREAKING THE TELEGRAPH LINES IN MANY PLACES.
PRECIPITATION TOTALED ONLY 0.14 INCH IN THE CITY.
IN 1883...A SEVERE RAIN AND HAILSTORM STRUCK THE CITY. IN
25 MINUTES THE HAIL WAS 5 INCHES DEEP IN THE VICINITY OF
THE WEATHER OFFICE IN DOWNTOWN DENVER AND REPORTED AS
DEEP AS 10 TO 12 INCHES IN OTHER PARTS OF THE CITY.
GUTTERS WERE BLOCKED BY THE HAIL...AND MANY CELLARS WERE
FLOODED. PRECIPITATION FROM THE STORM WAS 1.90 INCHES
WITH THE TOTAL FOR THE DAY RECORDED AT 2.02 INCHES. THE
SIZE OF THE HAIL WAS NOT RECORDED.
IN 1988...A WIND GUST TO 68 MPH WAS RECORDED AT ECHO LAKE.
NORTHWEST WINDS GUSTED TO 35 MPH AT STAPLETON AIRPORT.
IN 1995...HIGH WINDS OF UNKNOWN STRENGTH BLEW A CAMPER SHELL
FROM THE BACK OF A PICKUP TRUCK NEAR FORT LUPTON. NORTH
WINDS GUSTED TO 49 MPH AT DENVER INTERNATIONAL AIRPORT.
IN 1996...1 TO 2 INCH DIAMETER HAIL WAS MEASURED IN
LOCHBUIE NORTHEAST OF DENVER. BEAN SIZE HAIL FELL IN
BRIGHTON. THE LARGE HAIL FELL FROM SEVERE THUNDERSTORMS
TO THE NORTHEAST OF METRO DENVER.
IN 2003...TORNADOES TOUCHED DOWN BRIEFLY NEAR BRIGHTON...
WATKINS...AND STRASBURG...BUT DID NO REPORTED DAMAGE.
HAIL TO 3/4 INCH IN DIAMETER WAS MEASURED NEAR HUDSON.
8-9 IN 1957...INTENSE HEAVY RAIN CAUSED FLASH FLOODING ON TOLL
GATE CREEK IN AURORA WHERE 3 PEOPLE WERE KILLED IN A CAR.
UP TO 4 INCHES OF RAIN FELL IN 5 HOURS IN THE TOLL GATE
CREEK BASIN. THE RAIN ALSO CAUSED FLASH FLOODING ON SAND
CREEK IN AURORA AND DENVER. RAINFALL TOTALED 3.29 INCHES
AT STAPLETON AIRPORT WITH MOST OF THE RAIN...2.34 INCHES...
OCCURRING ON THE 9TH.
8-10 IN 1979...4.3 INCHES OF SNOW FELL AT STAPLETON INTERNATIONAL
AIRPORT WHERE NORTHWEST WINDS GUSTED TO 30 MPH ON THE 8TH.
MOST OF THE SNOWFALL...2.3 INCHES...OCCURRED ON THE 9TH.
HIGH TEMPERATURE OF ONLY 35 DEGREES ON THE 9TH EQUALED THE
RECORD LOW MAXIMUM FOR THE DATE.
9 IN 1875...A HEAVY WINDSTORM SWEPT ACROSS THE CITY FOR MOST
OF THE DAY. WEST-NORTHWEST WINDS AVERAGED A SUSTAINED
SPEED OF 31 MPH BETWEEN 6:00 AM AND 3:00 PM. THE PEAK
WIND WAS SUSTAINED TO 45 MPH AT 9:50 AM.
IN 1918...POST-FRONTAL WINDS WERE SUSTAINED TO 40 MPH WITH
GUSTS AS HIGH AS 43 MPH. ONLY A TRACE OF RAIN FELL.
IN 1941...A TORNADO WAS NOTED AT 2:20 PM TO THE NORTHEAST
OF DOWNTOWN AND WAS FOLLOWED BY ANOTHER SIMILAR SHAPED
CLOUD OR DUST ROLL ESTIMATED 3 MILES BEHIND. THICK DUST
FOLLOWED WITH HEAVY GUSTS OF WIND. THE TEMPERATURE FELL
15 DEGREES IN 10 MINUTES FOLLOWING THE TWISTER. THE MILD
TORNADO DID LITTLE DAMAGE EXCEPT TO UNPROTECTED FRAME
STRUCTURES. WINDS WERE SUSTAINED TO 50 MPH WITH THE
PASSING OF THE TORNADO AT STAPLETON AIRPORT. IT WAS
VISIBLE TO OBSERVERS FOR 10 MINUTES AND WAS LOST FROM
SIGHT AS IT TRAVELED EAST INTO HUGE ROLLS OF DUST. HAIL
AND RAIN FOLLOWED WITH A FEW HAILSTONES AS LARGE AS 1/2
INCH IN DIAMETER DOWNTOWN. NO DAMAGE WAS REPORTED FROM
THE HAIL. THUNDERSTORM WINDS SUSTAINED TO 31 MPH PRODUCED
BLOWING DUST DOWNTOWN. PRECIPITATION WAS ONLY 0.07 INCH.
IN 1983...STREAMS SWOLLEN BY RECENT RAIN AND SNOWMELT CAUSED
AN EARTHEN DAM TO COLLAPSE...WASHING OUT PORTIONS OF STATE
HIGHWAY 67 NEAR DECKERS IN SOUTHERN DOUGLAS COUNTY.
IN 1992...THREE BOYS...AGES 11...12...AND 16...WERE STRUCK BY
LIGHTNING WHILE TAKING COVER UNDER A LARGE TREE DURING A
THUNDERSTORM IN JEFFERSON COUNTY...JUST 7 MILES NORTHWEST
OF DENVER. THE THREE WERE SERIOUSLY INJURED.
9-10 IN 1889...HEAVY RAINFALL TOTALED 2.15 INCHES IN DOWNTOWN
DENVER. THE COLD RAIN WAS MIXED WITH SNOW AT TIMES
OVERNIGHT. TEMPERATURES ON THE 10TH RANGED FROM A
HIGH OF 38 DEGREES TO A LOW OF 32 DEGREES WITH NORTH
WINDS SUSTAINED TO 22 MPH.
IN 2003...A LATE SPRING SNOWSTORM HAMMERED THE MOUNTAINS...
EASTERN FOOTHILLS...AND URBAN CORRIDOR. THE HEAVIEST
SNOWFALL OCCURRED NORTH OF INTERSTATE 70. THE HEAVY
WET SNOW CAUSED DAMAGE TO TREES THROUGHOUT METRO DENVER
AND DOWNED POWER LINES. ABOUT 40 THOUSAND PEOPLE ALONG
THE URBAN CORRIDOR WERE WITHOUT POWER. STORM TOTAL
SNOWFALL AMOUNTS INCLUDED: 11.5 INCHES IN LOUISVILLE...
8 INCHES IN BOULDER AND BROOMFIELD; 7 INCHES IN
THORNTON...BROOMFIELD...AT DENVER INTERNATIONAL AIRPORT...
AND AT THE SITE OF THE FORMER STAPLETON INTERNATIONAL
AIRPORT; AND 6 INCHES 4 MILES EAST OF DENVER. SNOWFALL
RANGED FROM 4 TO 9 INCHES ACROSS EXTREME SOUTHERN WELD
COUNTY. IN THE FOOTHILLS...15 INCHES OF SNOW FELL NEAR
JAMESTOWN...9 INCHES AT ROLLINSVILLE AND RAWAH...WITH
8 INCHES AT CHIEF HOSA AND ATOP LOOKOUT MOUNTAIN.
THE SNOW WAS ACCOMPANIED BY THUNDER ON THE AFTERNOON
OF THE 9TH AT DENVER INTERNATIONAL AIRPORT WHERE WEST
WINDS GUSTED TO 25 MPH ON THE 9TH AND NORTH WINDS GUSTED
TO 22 MPH ON THE 10TH.
$$
