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Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Quad Cities IA IL
710 AM CST Tue Feb 28 2017

IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-011315-
Buchanan-Delaware-Dubuque-Benton-Linn-Jones-Jackson-Iowa-Johnson-
Cedar-Clinton-Muscatine-Scott-Keokuk-Washington-Louisa-Jefferson-
Henry IA-Des Moines-Van Buren-Lee-Jo Daviess-Stephenson-Carroll-
Whiteside-Rock Island-Henry IL-Bureau-Putnam-Mercer-Henderson-
Warren-Hancock-McDonough-Scotland-Clark-
710 AM CST Tue Feb 28 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
Missouri.

.DAY ONE...TODAY AND TONIGHT

The Storm Prediction Center has an enhanced risk of severe
thunderstorms east and south of a Keokuk, Iowa to Moline to
Mendota, Illinois line. A slight risk of severe thunderstorms
is east and south of a Memphis, Missouri to Washington, Iowa to
Lanark, Illinois line. A marginal risk was east of a Sigourney to
Dubuque Iowa line.

This morning: Scattered elevated thunderstorms can be expected
along and north of a northward advancing warm front. Some of these
storms will produce hail up to the size of quarters and wind
gusts up to 40 mph.

This afternoon and evening: A strong cold front will sweep across
the outlook area. A line of thunderstorms along the front is
expected to produce damaging wind up to 60 mph. A few supercells
embedded in this line will produce hail to golf ball size and tornadoes.

Area rivers are experiencing flooding. Please see the
latest Flood Statements and Flood Warnings for details.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

Snow showers are likely across east central Iowa and northwest
Illinois Wednesday. Accumulations of around one inch of slushy
snow will be possible along the highway 20 corridor in the
afternoon. This may result in slick roads and brief periods of
low visibility.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will be needed this afternoon and evening.

$$
Haase/Sheets




Flood Watch

Flood Watch
National Weather Service Quad Cities IA/IL
405 AM CST TUE FEB 28 2017

...The Flood Watch continues for the following rivers in Iowa...
Illinois...

  Mississippi River at Dubuque affecting Dubuque...Jackson and Jo
  Daviess Counties
  Mississippi River at Rock Island LD15 affecting Muscatine...Scott
  and Rock Island Counties
  Mississippi River at Muscatine affecting Louisa...Muscatine...
  Mercer and Rock Island Counties
  Mississippi River at New Boston LD17 affecting Louisa and Mercer
  Counties
  Mississippi River at Keithsburg affecting Des Moines...Louisa...
  Henderson and Mercer Counties
  Wapsipinicon River near De Witt 4S affecting Clinton and Scott
  Counties

This Flood Watch is based on moderate confidence associated with
routed flows from upstream and some snow melt. This Flood Watch
is also takes into account predicted rainfall over the next 48
hours.

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

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

IAZ067>068-ILZ015-010404-
/O.CON.KDVN.FL.A.0008.170304T0000Z-000000T0000Z/
/RCKI2.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/
405 AM CST TUE FEB 28 2017

The Flood Watch continues for
  The Mississippi River at Rock Island LD15
* Until further notice.
* At 3:30 AM Tuesday the stage was 12.1 feet.
* Flood stage is 15.0 feet.
* Minor flooding is possible.
* Forecast...Rise above flood stage Friday evening...and continue
  rising to 15.8 feet Monday morning.
* 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 4146 9086 4141 9085 4143 9066 4152 9043
      4156 9046

$$



Flood Watch

Flood Watch
National Weather Service Quad Cities IA/IL
405 AM CST TUE FEB 28 2017

...The Flood Watch continues for the following rivers in Iowa...
Illinois...

  Mississippi River at Dubuque affecting Dubuque...Jackson and Jo
  Daviess Counties
  Mississippi River at Rock Island LD15 affecting Muscatine...Scott
  and Rock Island Counties
  Mississippi River at Muscatine affecting Louisa...Muscatine...
  Mercer and Rock Island Counties
  Mississippi River at New Boston LD17 affecting Louisa and Mercer
  Counties
  Mississippi River at Keithsburg affecting Des Moines...Louisa...
  Henderson and Mercer Counties
  Wapsipinicon River near De Witt 4S affecting Clinton and Scott
  Counties

This Flood Watch is based on moderate confidence associated with
routed flows from upstream and some snow melt. This Flood Watch
is also takes into account predicted rainfall over the next 48
hours.

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

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

IAZ067-078-ILZ015-024-010404-
/O.CON.KDVN.FL.A.0009.170304T1800Z-000000T0000Z/
/MUSI4.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/
405 AM CST TUE FEB 28 2017

The Flood Watch continues for
  The Mississippi River at Muscatine
* Until further notice.
* At 3:15 AM Tuesday the stage was 12.9 feet.
* Flood stage is 16.0 feet.
* Minor flooding is possible.
* Forecast...Rise above flood stage Saturday...and continue rising to
  16.8 feet Monday morning.
* 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 4141 9108 4124 9114 4124 9108 4140 9102
      4144 9103

$$



U.S. Dept. of Commerce
NOAA National Weather Service
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Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: May 16, 2007
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