Public Information Statement
Issued by NWS Denver/Boulder, CO

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NOUS45 KBOU 140045
PNSBOU
COZ030>051-142300-

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
645 PM MDT SAT SEP 13 2014

...THIS WEEK IN METRO DENVER WEATHER HISTORY...

14    IN 1912...SNOW FELL FOR MOST OF THE DAY...BUT MELTED AS IT FELL.
        PRECIPITATION FROM MELTED SNOW WAS 0.46 INCH.  SOME SLEET WAS
        ALSO OBSERVED.  TOTAL PRECIPITATION WAS 0.61 INCH.  NORTH
        WINDS WERE SUSTAINED TO 15 MPH WITH GUSTS TO 17 MPH.
      IN 1934...A MODERATE DUST STORM BLEW INTO THE CITY AT 4:15 PM.
        NORTH WINDS WERE SUSTAINED TO 35 MPH WITH GUSTS TO 44 MPH.
        BY 5:25 PM THE WINDS HAD DECREASED AND THE STORM HAD ENDED.
        A TRACE OF RAIN FELL DURING THE EVENING.
      IN 1976...A TORNADO TOUCHED DOWN JUST WEST OF I-25 BETWEEN
        ARAPAHOE ROAD AND DRY CREEK ROAD...TEARING THE ROOF FROM A
        HOUSE.  NEARBY...A HIGH TENSION WIRE FELL ON A HOUSE CAUSING
        DAMAGE...AND LIGHTNING RIPPED A HOLE IN THE SIDE OF A HOUSE.
        THREE TORNADOES WERE OBSERVED JUST EAST OF STAPLETON
        INTERNATIONAL AIRPORT AND NORTHEAST OF BUCKLEY FIELD.  NO
        DAMAGE WAS REPORTED.  DIME TO QUARTER SIZE HAIL FELL IN
        NORTHEAST DENVER WITH ONLY 1/4 INCH HAIL AT STAPLETON
        INTERNATIONAL AIRPORT.  THE COLORADO STATE PATROL REPORTED
        GOLF BALL SIZE HAIL 4 MILES WEST OF FRANKTOWN.  A FUNNEL
        CLOUD WAS SIGHTED 4 MILES NORTH OF FRANKTOWN.
      IN 1983...A THUNDERSTORM PRODUCED WINDS GUSTS AS HIGH AS 56
        MPH ACROSS METRO DENVER ALONG WITH THICK BLOWING DUST.
        POWER WAS KNOCKED OUT IN MANY LOCATIONS.  THUNDERSTORM WINDS
        GUSTING TO 49 MPH BRIEFLY REDUCED THE VISIBILITY TO 2 MILES
        IN BLOWING DUST AT STAPLETON INTERNATIONAL AIRPORT.
      IN 1996...A 54-YEAR-OLD WOMAN WAS STRUCK BY LIGHTNING NEAR
        FRANKTOWN...AS SHE WAS PREPARING AN OUTDOOR BARBEQUE.  THE
        WOMAN WAS KNOCKED UNCONSCIOUS...BUT RECEIVED ONLY MINOR
        INJURIES.  THUNDERSTORMS OVER SOUTHERN JEFFERSON COUNTY
        DUMPED HEAVY RAIN IN THE BUFFALO CREEK AREA.  SOME MINOR
        ROADS WERE WASHED OUT BY FLASH FLOODING...BUT NO OTHER
        DAMAGE WAS REPORTED.  HAIL RANGING IN SIZE FROM 1/2
        TO 3/4 INCH IN DIAMETER FELL AT THE SITE OF THE FORMER
        STAPLETON INTERNATIONAL AIRPORT.
      IN 2006...A MICROBURST FROM A THUNDERSTORM PRODUCED
        SUSTAINED WINDS TO 40 MPH WITH GUSTS TO 53 MPH AT
        DENVER INTERNATIONAL AIRPORT.
15    IN 1921...RAINFALL OF 0.02 INCH WAS THE ONLY MEASURABLE
        PRECIPITATION OF THE MONTH.
      IN 1976...THE PUBLIC REPORTED A FUNNEL CLOUD AND GOLF BALL
        SIZE HAIL EAST OF PARKER.
15-17 IN 2000...UNUSUALLY HOT WEATHER FOR SO LATE IN THE SEASON
        OCCURRED WHEN TEMPERATURES CLIMBED INTO THE 90`S SETTING
        DAILY RECORD MAXIMUM TEMPERATURES ON EACH OF THE 3 DAYS.
        THE HIGH TEMPERATURE WAS 92 DEGREES ON THE 15TH AND 95
        DEGREES ON BOTH THE 16TH AND 17TH.
15-19 IN 1906...RAIN ON 5 CONSECUTIVE DAYS TOTALED 1.61 INCHES.
        A THUNDERSTORM OCCURRED ON THE 17TH.  HIGH TEMPERATURES
        RANGED FROM 48 DEGREES ON THE 16TH TO 65 DEGREES ON THE
        15TH.  LOW TEMPERATURES WERE IN THE LOWER TO MID 40`S.
16    IN 1874...A BLAST OF WEST WINDS CAUSED MINOR INJURIES DURING
        WORKING HOURS IN BOULDER.  IN DENVER...THE WINDS VEERED
        SUDDENLY FROM THE SOUTHWEST TO THE NORTHWEST AROUND NOON
        AND INCREASED TO A MAXIMUM SUSTAINED SPEED OF 49 MPH
        BEHIND AN APPARENT COLD FRONT.  THE WINDS REMAINED STRONG
        AND BACKED TO THE WEST FOR THE REMAINDER OF THE AFTERNOON.
      IN 2000...THE RECORD HIGH TEMPERATURE OF 95 DEGREES AT DENVER
        INTERNATIONAL AIRPORT ESTABLISHED OR EQUALED 3 DIFFERENT
        RECORD EXTREMES:  THE HIGH TEMPERATURE BROKE THE PREVIOUS
        RECORD HIGH FOR THE DAY OF 92 DEGREES SET OVER A CENTURY
        AGO IN 1895; IT MARKED THE WARMEST THAT IT HAS BEEN SO
        LATE IN SEPTEMBER; IT ALSO MARKED THE 60TH DAY DURING THE
        WARM SEASON THAT THE TEMPERATURE HAD REACHED 90 DEGREES OR
        MORE...EQUALING THE RECORD FIRST SET ON SEPTEMBER 29...1994.
      IN 2006...STRONG BORA WINDS BEHIND A PACIFIC COLD FRONT
        RAKED THE EASTERN SLOPES OF THE MOUNTAINS AND METRO
        DENVER DURING THE AFTERNOON.  NORTHWEST WINDS WERE
        SUSTAINED TO 40 MPH WITH GUSTS AS HIGH AS 54 MPH AT
        DENVER INTERNATIONAL AIRPORT.
      IN 2007...A SEVERE THUNDERSTORM PRODUCED A PEAK WIND GUST
        OF 67 MPH...ABOUT ONE MILE EAST OF BENNETT.  AT DENVER
        INTERNATIONAL AIRPORT...A PEAK WIND GUST OF 48 MPH WAS
        OBSERVED.
16-19 IN 1971...A RECORD BREAKING EARLY FALL SNOW STORM CAUSED
        EXTENSIVE DAMAGE TO TREES AND UTILITY LINES.  THE HEAVY WET
        SNOW OCCURRED WITH LITTLE WIND...BUT CAUSED RECORD BREAKING
        COLD TEMPERATURES FOR SO EARLY IN THE SEASON.  SNOWFALL
        TOTALED 15.6 INCHES AT STAPLETON INTERNATIONAL AIRPORT
        WITH MOST OF THE SNOWFALL...12.0 INCHES...OCCURRING ON THE
        17TH.  THIS WAS THE HEAVIEST FIRST SNOW OF THE SEASON.
        THE MAXIMUM SNOW DEPTH ON THE GROUND WAS 13 INCHES.
        RECORD LOW TEMPERATURES WERE SET ON THREE CONSECUTIVE DAYS:
        31 DEGREES ON THE 17TH...23 DEGREES ON THE 18TH...AND 20
        DEGREES ON THE 19TH...WHICH WAS ALSO A NEW ALL-TIME RECORD
        MINIMUM FOR THE MONTH AT THAT TIME.  RECORD LOW MAXIMUM
        TEMPERATURES WERE SET ON 4 CONSECUTIVE DAYS:  48 DEGREES
        ON THE 16TH...35 DEGREES ON THE 17TH...40 DEGREES ON THE 18TH...
        AND 42 DEGREES ON THE 19TH.
17    IN 1873...BRISK WEST TO NORTHWEST WINDS AT DIFFERENT TIMES
        DURING THE DAY...GENERALLY IN SUDDEN GUSTS...SPREAD A GOOD
        DEAL OF DUST INTO THE CITY.
      IN 1953...STRONG WINDS CAUSED THOUSANDS OF DOLLARS IN DAMAGE
        TO BOULDER.  THE WINDS BLEW FOR MOST OF THE DAY WITH GREAT
        GUSTINESS...AND A FREAK TWISTER WAS REPORTED DURING THE
        AFTERNOON.  DAMAGE WAS MINOR.  A THUNDERSTORM WIND GUST
        TO 40 MPH CAUSED SOME BLOWING DUST AT STAPLETON AIRPORT.
      IN 1992...A TORNADO TOUCHED DOWN BRIEFLY NEAR BENNETT.  NO
        DAMAGE WAS REPORTED.
      IN 1993...SEVERE THUNDERSTORMS RUMBLED ACROSS NORTHERN
        PORTIONS OF METRO DENVER.  HAIL AS LARGE AS 1 3/4 INCHES
        IN DIAMETER FELL IN BRIGHTON.  DIME SIZE HAIL DAMAGED
        SEVERAL ROOFS OF RESIDENCES IN LAFAYETTE.
      IN 2000...FOR THE SECOND DAY IN A ROW...THE HIGH TEMPERATURE
        OF 95 DEGREES AT DENVER INTERNATIONAL AIRPORT BROKE THREE
        RECORD TEMPERATURE EXTREMES:  THE HIGH TEMPERATURE BROKE
        THE PREVIOUS RECORD FOR THE DAY OF 94 DEGREES SET IN 1895;
        IT MARKED THE WARMEST IT HAS BEEN FOR SO LATE IN THE SEASON;
        IT ALSO MARKED THE 61ST DAY IN THE YEAR THAT THE TEMPERATURE
        HAD EQUALED OR EXCEEDED 90 DEGREES...ECLIPSING THE RECORD
        EQUALED THE PREVIOUS DAY AND FIRST SET ON SEPTEMBER 29...
        1994.
18    IN 1901...NORTHEAST WINDS WERE SUSTAINED TO 42 MPH WITH GUSTS
        TO 50 MPH BEHIND AN APPARENT COLD FRONT.
      IN 1948...THE LOW TEMPERATURE COOLED TO ONLY 69 DEGREES...THE
        ALL-TIME RECORD HIGH MINIMUM FOR THE MONTH.
      IN 1988...A STRONG COLD FRONT BLASTED METRO DENVER WITH
        HIGH WINDS.  GUSTS REACHED 82 MPH IN LONGMONT AND 81
        MPH AT JEFFERSON COUNTY AIRPORT NEAR BROOMFIELD WHERE
        THE WINDS FLIPPED OVER AND DESTROYED A SMALL AIRPLANE.
        WIND GUSTS TO 60 MPH WERE RECORDED IN BOULDER AND WHEAT
        RIDGE.  WEST WIND GUSTS TO 54 MPH WERE CLOCKED AT STAPLETON
        INTERNATIONAL AIRPORT.  THE STRONG WINDS DOWNED TREES AND
        POWER LINES AND DAMAGED HOMES AND CARS.  A LONGMONT MAN WAS
        SLIGHTLY INJURED...WHEN A TREE FELL ON TOP OF HIS CAR.
      IN 1990...A SLOW MOVING THUNDERSTORM OVER SOUTHWEST METRO
        DENVER SPAWNED AN OMINOUS LOOKING FUNNEL CLOUD NEAR THE
        INTERSECTION OF SHERIDAN BLVD. AND U.S. HIGHWAY 285.  THE
        FUNNEL CLOUD NEARLY TOUCHED DOWN A FEW TIMES BEFORE LIFTING
        BACK INTO THE MAIN CLOUD.  NO DAMAGE WAS REPORTED.  PEA TO
        MARBLE SIZE HAIL AND 3/4 INCH OF RAIN FELL OVER CENTRAL AND
        NORTHEAST DENVER.  NUMEROUS STREETS AND UNDERPASSES BECAME
        FLOODED ON DENVER`S SOUTH SIDE WHEN THE HEAVY RUNOFF
        BACKED UP STORM SEWERS.  THUNDERSTORM RAINFALL TOTALED
        1.02 INCHES AT STAPLETON INTERNATIONAL AIRPORT.
      IN 1993...A SEVERE THUNDERSTORM ROLLED THROUGH SOUTHEAST METRO
        DENVER.  DIME SIZE HAIL WAS REPORTED IN MANY AREAS.
        STRAIGHT-LINE WINDS FROM THE THUNDERSTORM...MEASURED BY A
        WEATHER SPOTTER AT 70 MPH...TORE THE ROOF OFF 6 APARTMENTS
        OF AN APARTMENT COMPLEX IN AURORA.  HEAVY RAIN WHICH
        ACCOMPANIED THE WINDS CAUSED MAJOR DAMAGE TO THE
        APARTMENTS AS WELL AS THE CONTENTS.  MANY TREES...FENCES...
        AND POWER POLES WERE KNOCKED DOWN BY THE STRONG WINDS.
        HEAVY RAIN FLOODED ROADWAYS IN DENVER AND AURORA.
        THUNDERSTORM RAINFALL TOTALED 1.08 INCHES AND NORTH WINDS
        GUSTED TO 44 MPH AT STAPLETON INTERNATIONAL AIRPORT WHERE
        THE VISIBILITY WAS BRIEFLY REDUCED TO AS LOW AS 1/4 MILE
        IN HEAVY RAIN.
      IN 1996...A LATE SUMMER SNOWSTORM STRUCK THE NORTHERN
        MOUNTAINS AND FRONT RANGE EASTERN FOOTHILLS.  GOLDEN
        GATE CANYON RECEIVED 6 INCHES OF NEW SNOW WITH 5 INCHES
        REPORTED AT BOTH NEDERLAND AND BLACKHAWK.  THUNDERSTORMS
        PRODUCED HEAVY RAIN ACROSS METRO DENVER...WHICH WAS MIXED
        WITH SNOW BY LATE EVENING.  RAINFALL TOTALED 0.83 INCH
        AT THE SITE OF THE FORMER STAPLETON INTERNATIONAL AIRPORT
        AND 1.22 INCHES AT DENVER INTERNATIONAL AIRPORT WHERE
        NORTHWEST WINDS GUSTED TO 39 MPH.
18-19 IN 1955...HEAVY RAINS CAUSED FLASH FLOODING ACROSS PORTIONS OF
        METRO DENVER.  RAINFALL TOTALED 1.71 INCHES AT STAPLETON
        AIRPORT.
19    IN 1955...HAIL STONES TO 2 1/2 INCHES IN DIAMETER WERE
        REPORTED NORTH OF DENVER.  THE LARGE STONES BROKE MANY
        AUTOMOBILE WINDSHIELDS.
      IN 1963...HAIL TO 3/4 INCH IN DIAMETER FELL IN WESTMINSTER.
      IN 1983...AN UNUSUALLY STRONG COLD FRONT ROARED THROUGH
        METRO DENVER DURING THE AFTERNOON HOURS.  AT STAPLETON
        INTERNATIONAL AIRPORT...THE TEMPERATURE DROPPED 51 DEGREES...
        FROM A SUNNY 86 DEGREES TO A SNOWY 35 DEGREES...IN JUST 7
        HOURS.  STRONG WINDS AND A WALL OF BLOWING DUST FOLLOWED
        THE FRONT.  NORTHEAST WINDS GUSTING TO 36 MPH BRIEFLY
        REDUCED THE SURFACE VISIBILITY TO 1 MILE IN BLOWING DUST
        AT STAPLETON INTERNATIONAL AIRPORT WHERE ONLY A TRACE OF
        SNOW FELL LATER.
      IN 1996...HIGH WINDS GUSTING TO 84 MPH WERE MEASURED AT
        GOLDEN GATE CANYON IN THE FOOTHILLS WEST OF DENVER.
        WEST WINDS GUSTED TO ONLY 25 MPH AT DENVER INTERNATIONAL
        AIRPORT.
20    IN 1921...AN APPARENT BORA PRODUCED NORTHWEST WINDS SUSTAINED
        TO 44 MPH WITH GUSTS TO 64 MPH.
      IN 1955...HAIL STONES 1/2 TO 3/4 INCH IN DIAMETER WERE
        REPORTED ACROSS PARTS OF THE CITY OF DENVER.
      IN 1992...WEATHER OBSERVERS AT BUCKLEY AIR NATIONAL GUARD BASE
        SIGHTED TWO TORNADOS SOUTHEAST OF THE BASE.  THE TORNADOS
        WERE SHORT-LIVED AND CAUSED NO INJURIES OR DAMAGE.
20-21 IN 1963...HEAVY RAIN AND HAIL CAUSED LOCAL FLOODING IN
        SOUTHEAST DENVER.  THUNDERSTORM RAINFALL WAS ONLY
        0.60 INCH AT STAPLETON AIRPORT ON THE 20TH.
      IN 1983...THE COLD FRONT ON THE 19TH BROUGHT AN UNUSUALLY COLD
        AIR MASS INTO METRO DENVER FOR SO EARLY IN THE SEASON.  THE
        TEMPERATURE DIPPED TO A DAILY RECORD MINIMUM OF 28 DEGREES
        ON BOTH DAYS.
      IN 1995...A VIGOROUS LATE SUMMER STORM BROUGHT THE SEASON`S
        FIRST HEAVY SNOW TO PORTIONS OF METRO DENVER.  MILLIONS
        OF TREES WERE DAMAGED AND POWER LINES DOWNED AS 4 TO 8
        INCHES OF HEAVY WET SNOW SETTLED ON FULLY LEAFED TREES IN
        THE BOULDER AND DENVER AREAS.  BRANCHES SNAPPED AND TREES
        SPLIT UNDER THE WEIGHT OF HEAVY SNOW...DOWNING POWER LINES.
        FIREFIGHTERS RESPONDED TO NUMEROUS TRANSFORMER FIRES.
        AROUND 100 THOUSAND PEOPLE WERE LEFT WITHOUT ELECTRICITY
        IN BOULDER AND DENVER AREAS ALONE.  IT TOOK OVER A WEEK
        TO FULLY RESTORE POWER TO SOME AREAS.  INSURANCE CLAIMS
        WERE ESTIMATED TO BE AROUND 6 MILLION DOLLARS TO HOMES
        IN METRO DENVER AND ABOUT 500 THOUSAND DOLLARS IN DAMAGE
        TO AUTOMOBILES.  IT WAS ESTIMATED THAT ABOUT 80 PERCENT
        OF 125 MILLION DOLLARS WORTH OF CITY OWNED TREES IN DENVER
        WERE DAMAGED.  SNOWFALL TOTALED 7.4 INCHES AT THE SITE OF
        THE FORMER STAPLETON INTERNATIONAL AIRPORT WHERE THE
        GREATEST DEPTH OF SNOW ON THE GROUND WAS ONLY 4 INCHES
        DUE TO MELTING.  TEMPERATURE RECORDS WERE SET ON THE
        21ST WHEN THE THERMOMETER DIPPED TO A RECORD LOW READING
        OF 27 DEGREES AND CLIMBED TO A HIGH OF ONLY 36 DEGREES...
        SETTING A RECORD LOW MAXIMUM FOR THE DATE.  NORTH WINDS
        GUSTED TO 29 MPH AT DENVER INTERNATIONAL AIRPORT ON THE
        20TH.
20-22 IN 1902...A THUNDERSTORM ON THE 20TH...IN ADVANCE OF AN
        APPARENT COLD FRONT...PRODUCED RAIN...HAIL...AND NORTHWEST
        WINDS TO 40 MPH WITH GUSTS TO 48 MPH.  WIDESPREAD RAIN
        DEVELOPED BEHIND THE COLD FRONT AND TOTALED 3.21 INCHES
        FROM THE EVENING OF THE 20TH THROUGH THE EARLY AFTERNOON
        OF THE 22ND.  THE 2.70 INCHES OF PRECIPITATION RECORDED
        FROM 800 PM ON THE 20TH TO 800 PM ON THE 21ST IS THE
        GREATEST 24 HOUR PRECIPITATION EVER RECORDED IN THE
        MONTH OF SEPTEMBER.  THE TEMPERATURE DIPPED FROM A HIGH
        OF 80 DEGREES ON THE 20TH TO A HIGH OF ONLY 51 DEGREES
        ON THE 21ST.

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