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Colorado, Larimer and Boulder Counties Between 6000 and 9000 Feet

Flash Flood Watch

Statement as of 10:10 PM MDT on July 28, 2014

Expires 8:00 PM EDT on July 30, 2014


... Flash Flood Watch remains in effect from Tuesday afternoon
through Wednesday afternoon...

The Flash Flood Watch continues for

* portions of central Colorado... east central Colorado... north
central Colorado and northeast Colorado... including the
following areas... in central Colorado... central and Southeast
Park County... Jefferson and west Douglas counties above 6000
feet/Gilpin/Clear Creek/Northeast Park counties below 9000
feet and south and southeast grand/west central and southwest
Boulder/Gilpin/Clear Creek/Summit/north and West Park counties
above 9000 feet. In east central Colorado... north and
northeast Elbert County below 6000 feet/North Lincoln County
and southeast Elbert County below 6000 feet/South Lincoln
County. In north central Colorado... Larimer County below 6000
feet/northwest Weld County... Larimer and Boulder counties
between 6000 and 9000 feet and south and East
Jackson/Larimer/north and northeast grand/northwest Boulder
counties above 9000 feet. In northeast Colorado... Boulder and
Jefferson counties below 6000 feet/west Broomfield County...
central and East Adams and Arapahoe counties... central and
south Weld County... Elbert/central and East Douglas counties
above 6000 feet... Morgan County... north Douglas County below
6000 feet/Denver/west Adams and Arapahoe counties/east
Broomfield County... northeast Weld County and Washington
County.

* From Tuesday afternoon through Wednesday afternoon

* widespread showers and thunderstorms will produce 1 to 2
inches of rain Tuesday afternoon through Wednesday. Some
thunderstorms may train or reform over the same areas and
produce several inches of rainfall.

* Flash flooding of low lying areas... creeks and streams will be
possible along with rock and mud slides. If you live in flood
prone areas or will be traveling... stay alert to the weather
and be prepared for rapidly rising water levels.

Precautionary/preparedness actions...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should flash flood warnings be issued.




Public Information Statement

Statement as of 2:59 AM MDT on July 29, 2014


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

13-5 in 2008... a streak of 24 consecutive days of 90 degrees
        shattered the previous record of 18 consecutive days
        established in 1901 and 1874. Ironically... no new single
        day record high temperatures were set in the month of July.
        In August however... a record of 104 degrees was set on the
        1st... and another record of 103 degrees was set on the 2nd.
        In addition... a record low min of 70 degrees was set on
        August 2nd.
18-2 in 1987... a streak of 16 consecutive days of 90 degrees
        ranked 4th on the list of hot streaks. The record of
        24 consecutive days was established in the Summer of
        2008.
27-31 in 1956... 96 percent of the total precipitation for the month
        of July occurred over the last five days of the month.
        Heavy thunderstorms produced 4.00 inches of rainfall at
        Stapleton Airport. This amount of precipitation in 5 days
        or less had been exceeded only 3 times in previous record.
        The last time had been in December of 1913 as snow.
        Considerable property damage occurred across Metro Denver
        from flooding.
28-30 in 1889... dense smoke from Forest fires in the mountains
        obscured the sun over the city for three days.
      In 1971... a vigorous cold front late on the 28th produced
        northeast wind gusts to 39 mph and record breaking cold
        temperatures on the 29th and 30th. The temperature dipped
        to 47 degrees on the 29th and 43 degrees on the 30th...
        setting record minimums for the dates. Upslope cloudiness
        along with rain and fog early on the 29th helped set a
        record low maximum temperature of 58 degrees for the date.
29 in 1878... a total eclipse of the sun was observed at 2:20 PM.
        From before to during the eclipse... the temperature in the
        sun fell from 114 degrees to 82 degrees... while the shade
        temperature fell from 89 degrees to 83 degrees.
      In 1880... heavy thunderstorm rain and hail flooded streets
        and ditches. In 25 minutes... 0.76 inch of rain fell on the
        city along with large hail to 3/4 inch in diameter. There
        were no strong winds with the storm.
      In 1890... a thunderstorm produced sustained west winds to
        48 mph with gusts to 60 mph... but only 0.01 inch of rain.
      In 1956... heavy rain and hail fell over west and north Denver.
      In 1964... hail to 3/4 inch in diameter fell at Lowry airfield.
      In 1978... a small tornado was sighted just east of Parker. No
        damage was reported.
      In 1989... heavy rain drenched all areas of the Front Range...
        both in the foothills and adjacent plains. Amounts of 1 to
        3 inches were general over the area. Damage was confined to
        a few minor Road washouts and some street... basement... and
        crop flooding. Thunderstorm rainfall totaled 1.44 inches at
        Stapleton International Airport where north winds gusted to
        43 mph. Lightning struck a 250 thousand dollar home near
        Nederland and started a fire which destroyed all of it
        except two garages. Lightning started a fire in a home in
        Evergreen. It reached the house by hitting a tree... then
        traveling through a metal clothesline strung between the
        tree and the building.
      In 1995... thunderstorm winds gusted to 59 mph in Brighton.
        Thunderstorm winds from the south-southeast gusted to 41
        mph at Denver International Airport. High temperature
        of 99 degrees was a new record maximum for the date in
        Denver.
      In 1997... heavy rain caused flooding in an apartment building
        in Westminster. Several residents had to be evacuated from
        their apartments. A woman in Aspen Park received minor
        injuries... when lightning passed through an office window
        and struck her. She suffered temporary blindness for about
        15 minutes.
      In 2003... hail as large as 1 inch in diameter pelted Conifer...
        Highlands Ranch... and Franktown.
29-30 in 1997... heavy rain caused flooding and flash flooding in
        central portions of Adams and Arapahoe counties. Two
        homes were extensively damaged when water flooded the
        basements and adjacent pasture area in Strasburg. Water
        4 to 5 feet deep had pooled in the lower lying areas of
        the town. A portion of Quincy Road was closed in Arapahoe
        County when 4 feet of water covered the roadway.
        Rainfall totaled 3.06 inches at Denver International
        Airport... establishing a new record for 24-hour rainfall
        in July. The previous record was 2.42 inches set in 1965
        on the 24th and 25th.


Weather Severe Map
Alaska - Record Report
Arkansas - Flood Warning
California - Fire Weather Warning, Fire Weather Watch , Record Report
Colorado - Areal Flood Advisory, Flash Flood Watch , Flash Flood Watch , Record Report , Public Information Statement
Florida - Flood Warning , Coastal Hazard Statement , Record Report , Public Information Statement
Georgia - Record Report
Guam - High Surf Advisory, Flash Flood Watch
Idaho - Heat Advisory
Indiana - Record Report , Public Information Statement
Kansas - Flash Flood Watch
Kentucky - Record Report
Maryland - Record Report , Public Information Statement
Michigan - Record Report
Nevada - Flash Flood Watch
New Mexico - Flash Flood Warning , Flash Flood Watch, Areal Flood Advisory , Flash Flood Watch , Areal Flood Advisory , Public Information Statement
New York - Areal Flood Advisory , Record Report
North Dakota - Flood Warning
Ohio - Record Report , Public Information Statement
Oklahoma - Flash Flood Watch
Oregon - Fire Weather Warning, Fire Weather Watch , Special Statement
Pennsylvania - Record Report , Public Information Statement
South Carolina - Record Report
Texas - Flash Flood Watch , Special Statement
Utah - Flash Flood Watch , Record Report
Vermont - Record Report
Washington - Heat Advisory , Special Statement
West Virginia - Record Report , Public Information Statement
Wyoming - Flash Flood Watch