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Public Information Statement

Statement as of 2:59 AM MDT on September 21, 2014

... Today in Metro Denver weather history...

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
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.
21 in 1951... 4.2 inches of snow fell at Stapleton Airport...
        where northeast winds gusted to 27 mph. This was the
        first snowfall of the season in Denver... marking the end
        of the second shortest snow-free period on record... 109
        days... from June 4th through September 20th. A trace of
        snow fell on June 3rd.
      In 1984... thunderstorm winds gusted to 56 mph at Stapleton
      In 1992... the only precipitation of the month at Stapleton
        International Airport... 0.01 inch of rain... fell from a
        brief shower around daybreak.
      In 2009... an early season storm brought moderate to heavy
        snow to the foothills of Clear Creek... Jefferson and park
        counties... west and southwest of Denver. A trained
        spotter... 4 miles west-northwest of Conifer... was the big
        Winner with 14 inches of snow. Storm totals elsewhere
        generally ranged from 5 to 10 inches.
21-22 in 1870... strong winds occurred in the foothills and in
        Boulder and Denver.
      In 1895... rain changed to snow overnight and totaled 11.4
        inches in downtown Denver. This was the first snowfall
        of the season and the second heaviest first snowfall of
        the season on record. North winds were sustained to 27
        mph with gusts to 30 mph on the 21st.

Weather Severe Map
Arizona - Record Report
Arkansas - Flood Warning
California - Flash Flood Warning , Flash Flood Watch , Record Report , Public Information Statement
Colorado - Flash Flood Warning , Areal Flood Advisory , Special Statement , Record Report , Public Information Statement
Connecticut - Areal Flood Advisory
District of Columbia - Coastal Flood Advisory
Florida - Flood Warning
Guam - Areal Flood Advisory
Hawaii - Record Report
Idaho - Air Quality Alert
Illinois - Flood Warning
Maryland - Flood Watch / Flood Statement
Michigan - Special Statement
Montana - Record Report
Nevada - Areal Flood Advisory, Flash Flood Watch , Flash Flood Watch, Areal Flood Advisory , Flash Flood Watch , Areal Flood Advisory , Record Report
New Mexico - Flash Flood Warning , Flash Flood Watch , Flash Flood Watch, Areal Flood Advisory
New York - Areal Flood Advisory
North Carolina - Flood Advisory , Beach Hazard Statement , Special Statement
Ohio - Coastal Hazard Statement
Oregon - Record Report
Pennsylvania - Coastal Hazard Statement
Texas - Flood Warning, Areal Flood Warning , Flood Warning , Flood Warning, Flash Flood Warning , Flash Flood Warning , Areal Flood Warning , Flash Flood Watch , Areal Flood Watch , Flash Flood Watch, Areal Flood Advisory , Dense Fog Advisory , Hydrologic Statement , Public Information Statement
Utah - Special Statement
Virginia - Coastal Flood Advisory , Beach Hazard Statement , Special Statement
Washington - Record Report
West Virginia - Special Statement
Wisconsin - Public Information Statement
Wyoming - Record Report

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