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Flood Watch

Flood Watch
National Weather Service Quad Cities IA/IL
839 AM CDT Thu Jul 20 2017

...The National Weather Service in the Quad Cities has issued a
Flood Watch for the following rivers in Illinois...

  Pecatonica River at Freeport affecting Stephenson County
  Rock River at Como affecting Whiteside County
  Rock River near Joslin affecting Henry...Rock Island and Whiteside

This Flood Watch is based on limited confidence associated with
routed flows from upstream.

As the forecast becomes more certain, this watch will either be
upgraded to a warning or cancelled.

839 AM CDT Thu Jul 20 2017

The National Weather Service in Quad Cities has issued a
* Flood Watch for
  The Rock River near Joslin
* Until Monday.
* At 6:45 AM Thursday the stage was 10.6 feet.
* Flood stage is 12.0 feet.
* Minor flooding is possible.
* Forecast...Rise above flood stage Saturday morning...and continue
  rising to 12.6 feet Sunday morning. Fall below flood stage Monday.
* This forecast is based on routed flow from upstream in combination
  with forecast rainfall. Consequently there is limited confidence
  in the river reaching flood stage.


LAT...LON 4152 9032 4169 9002 4163 8999 4148 9027



Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Quad Cities IA IL
504 AM CDT Thu Jul 20 2017

Henry IA-Des Moines-Van Buren-Lee-Jo Daviess-Stephenson-Carroll-
Whiteside-Rock Island-Henry IL-Bureau-Putnam-Mercer-Henderson-
504 AM CDT Thu Jul 20 2017

This Hazardous Weather Outlook is for portions of north central
Illinois...northwest Illinois...west central Illinois...east
central Iowa...northeast Iowa...southeast Iowa and northeast


Thunderstorms with strong winds, small hail and torrential
rainfall will impact portions of eastern Iowa and northwest
Illinois early this morning. Heavy rain falling on areas already
saturated from recent storms may lead to localized flash flooding.

Later today and tonight, scattered thunderstorms may redevelop
across eastern Iowa and northwest Illinois. These storms will have
the potential to produce damaging wind, large hail and torrential


Friday through Saturday...several rounds of thunderstorm complexes
will push across portions of the outlook area, mainly along and
north of Interstate 80. There is the potential for these storms to
be severe with damaging winds and large hail. Torrential rainfall is
likely with several inches of rain possible in a short time. This
could lead to localized flash flooding. However, confidence is low
on the timing and exact location of the thunderstorm complexes.

Hot and humid conditions can be expected through Saturday. The
hotter temperatures should generally occur near and south of Highway
30. Temperatures are expected to push well into the 90s with
dewpoints well into the 70s to around 80. This will soar heat index
values to 105 to 110 every afternoon through Saturday. But cloud
cover and storm outflow may bring temporary cool downs to the
ambient temperatures, especially north of Highway 30.

Heat advisories and excessive heat warnings are in place for
northeast Missouri, much of eastern Iowa and west central Illinois
through Saturday. Please see the latest National Weather Service
statements for details.


Storm spotter activation may be needed this afternoon and evening
across eastern Iowa and northwest Illinois.



Excessive Heat Warning

National Weather Service Quad Cities IA IL
431 AM CDT Thu Jul 20 2017

...Extended Period of Dangerous Heat and Humidity...

.A hot and humid air mass will remain over much of the area
through Saturday. The heat combined with the humidity will push
peak heat index values over 100 degrees. At night, heat indices
will remain at or above 75 providing little relief. The
cumulative effects of consecutive days with heat indices over
100 will increase the risk for heat related illnesses for those
spending time outside or without access to air conditioning.

Jefferson-Henry IA-Des Moines-Van Buren-Lee-Rock Island-Henry IL-
Including the cities of Marengo, Iowa City, Tipton, Muscatine,
Davenport, Bettendorf, Sigourney, Washington, Wapello, Fairfield,
Mount Pleasant, Burlington, Keosauqua, Fort Madison, Moline,
Rock Island, Geneseo, Aledo, Oquawka, Monmouth, Carthage, Macomb,
Memphis, and Kahoka
431 AM CDT Thu Jul 20 2017


* Heat Index Values...up to 110 due to temperatures in the mid
  90s...and dewpoints well into the 70s.

* Timing...Today through Saturday evening.

* Impacts...Increased risk for heat exhaustion or heat stroke
  for people spending time outside or living without air
  conditioning. Children and the elderly are most susceptible.
  Also, parked vehicles will become dangerously hot within


An Excessive Heat Warning means that a prolonged period of
dangerously hot temperatures and high humidity will occur.  This
combination will lead to a dangerous situation in which heat
illnesses are likely.  Drink plenty of fluids, stay in an air-
conditioned room, stay out of the sun, and check on relatives and
neighbors, especially the elderly.

Take extra precautions if you work or spend time outside.  When
possible, reschedule strenuous activities to early morning or
evening.  Know the signs and symptoms of heat exhaustion and heat
stroke.  Wear light weight and loose fitting clothing when
possible and drink plenty of water.

To reduce risk during outdoor work the occupational safety and
health administration recommends scheduling frequent rest breaks
in shaded or air conditioned environments.  Anyone overcome by
heat should be moved to a cool and shaded location.  Heat stroke
is an emergency, call 9 1 1.



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