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Flood Warning

FLOOD STATEMENT
NATIONAL WEATHER SERVICE Chicago/Romeoville Il
517 AM CST TUE FEB 20 2018

ILC031-037-043-053-063-075-089-091-093-099-103-105-141-197-INC073-
089-111-127-201645-
/O.CON.KLOT.FA.W.0001.000000T0000Z-180220T1645Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Kendall IL-La Salle IL-DuPage IL-Cook IL-Livingston IL-Ogle IL-
Will IL-Lee IL-De Kalb IL-Grundy IL-Kankakee IL-Ford IL-Kane IL-
Iroquois IL-Porter IN-Newton IN-Lake IN-Jasper IN-
517 AM CST TUE FEB 20 2018

...A FLOOD WARNING FOR URBAN AREAS AND SMALL STREAMS REMAINS IN
EFFECT Until 1045 AM CST FOR Kendall...La Salle...DuPage...Cook...
Livingston...southeastern Ogle...Will...Lee...De Kalb...Grundy...
Kankakee...central Ford...Kane...northern Iroquois...Porter...
northern Newton...Lake and northern Jasper Counties...

At 514 AM CST...DOPPLER RADAR INDICATED RAIN AND EMBEDDED
THUNDERSTORMS WITH VERY HEAVY RAINFALL REMAINED ACROSS PORTIONS OF
THE WARNED AREA. UP TO TWO INCHES OF RAIN HAS ALREADY FALLEN SINCE
LAST EVENING.

ADDITIONAL RAINFALL AMOUNTS OF UP TO AN INCH ARE POSSIBLE IN THE
WARNED AREA THIS MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE.

&&

LAT...LON 4052 8846 4062 8846 4062 8857 4076 8858
      4075 8893 4093 8893 4093 8905 4110 8905
      4110 8916 4158 8917 4158 8963 4181 8963
      4215 8776 4206 8767 4171 8753 4168 8743
      4164 8743 4162 8722 4171 8693 4122 8693

$$

RATZER



Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
347 AM CST Tue Feb 20 2018

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
211000-
Winnebago-Boone-McHenry-Lake Illinois-Ogle-Lee-De Kalb-Kane-
DuPage-Cook-La Salle-Kendall-Grundy-Will-Kankakee-Livingston-
Iroquois-Ford-Lake Indiana-Porter-Newton-Jasper-Benton-
347 AM CST Tue Feb 20 2018 /447 AM EST Tue Feb 20 2018/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...Today and Tonight.

WEATHER HAZARDS EXPECTED:
  Limited Thunderstorm Risk.
  Extreme Flooding Risk.
  Elevated Fog Risk.
  Elevated Ice Accumulation Risk.

DISCUSSION:

Rain and occasional thunderstorms will continue today into
tonight. 1 to 2 inches of rain has already fallen since Monday
in many areas, and additional amounts of 1 to locally 3 inches
are possible through tonight. This will cause flooding, and
significant sharp rises on most area rivers and creeks. A cold
front will move across the area tonight, and rain may turn to
freezing rain for a time behind the front, or may mix with sleet
or snow briefly before ending. Some ice accumulation and glazing
is possible overnight.

Many area rivers will go into flood today or tonight.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Wednesday...
  Limited Ice Accumulation Risk.
  Limited Snow or Sleet Risk.
Thursday...
  Elevated Ice Accumulation Risk.
Friday...
  Limited Ice Accumulation Risk.

DISCUSSION:

A couple of periods of light freezing rain or sleet are
possible Wednesday night into early Thursday, and Thursday night
into early Friday across portions of the outlook area.

Most area rivers will remain in or near flood for the next
several days.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.

&&

$$



Flood Advisory

Flood Advisory
National Weather Service Chicago/Romeoville IL
345 AM CST Tue Feb 20 2018

...The National Weather Service in Chicago has issued a Flood
Advisory for the Des Plaines River...

  Des Plaines River near Des Plaines affecting Cook County

.Synopsis...Heavy rainfall of 1.5 to 3 inches is likely through Tuesday night with
locally heavier amounts in excess of 3 inches possible. The combination
of this heavy rainfall, frozen ground, and some snow melt will lead to bankfull
conditions on the Des Plaines River and possible flooding.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Safety message...If you encounter a flooded roadway...turn around and
find an alternate route.

Additional information can be found at weather.gov/chicago.

&&

ILC031-202145-
/O.NEW.KLOT.FL.Y.0017.180220T0945Z-180221T2143Z/
/DSPI2.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
345 AM CST Tue Feb 20 2018

The National Weather Service in Chicago has issued a
* Flood Advisory for
  The Des Plaines River near Des Plaines.
* until Wednesday afternoon.
* At  245 AM Tuesday the stage was 11.4 feet.
* Action stage is 13.5 feet.
* Flood stage is 15.0 feet.
* Forecast...The river will rise to near 14.9 feet by Wednesday
  evening.
* Impact...At 15.0 feet...Roads in the forest preserve begin to flood.

&&

LAT...LON 4212 8784 4196 8780 4196 8790 4212 8794


$$




Flood Watch

Flood Watch
National Weather Service Chicago IL
326 AM CST Tue Feb 20 2018

...Significant Flooding Possible Through Tonight...

ILZ013-014-019>023-032-033-039-INZ001-002-010-011-019-202100-
/O.CON.KLOT.FA.A.0001.000000T0000Z-180221T1200Z/
/00000.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DuPage-Cook-La Salle-Kendall-Grundy-Will-Kankakee-Livingston-
Iroquois-Ford-Lake IN-Porter-Newton-Jasper-Benton-
Including the cities of Wheaton, Chicago, Ottawa, Oswego, Morris,
Joliet, Kankakee, Pontiac, Watseka, Paxton, Gary, Valparaiso,
Morocco, Rensselaer, and Fowler
326 AM CST Tue Feb 20 2018 /426 AM EST Tue Feb 20 2018/

...FLOOD WATCH REMAINS IN EFFECT THROUGH LATE TONIGHT...

The Flood Watch continues for

* Portions of Illinois and Indiana, including the following
  areas, in Illinois, Cook, DuPage, Ford, Grundy, Iroquois,
  Kankakee, Kendall, La Salle, Livingston, and Will. In Indiana,
  Benton, Jasper, Lake IN, Newton, and Porter.

* Through late tonight

* Multiple rounds of showers and some thunderstorms are expected
  today and into portions of tonight. Widespread rainfall amounts
  of one and a half to four inches are expected with isolated
  higher totals possible.

* The ground remains frozen, therefore much of the rain will
  result in rapid runoff. Expect rises on area rivers and
  streams that may result in flooding. There have already been
  reports of flooding of low lying areas and on roadways near
  flood prone areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flood Watch means there is a potential for flooding based on
current forecasts.

You should monitor later forecasts and be alert for possible
Flood Warnings. Those living in areas prone to flooding should be
prepared to take action should flooding develop.

&&

$$



Flood Advisory

Flood Advisory
National Weather Service Chicago/Romeoville IL
310 AM CST Tue Feb 20 2018

...The Flood Advisory continues for the Little Calumet River...

  Little Calumet River at South Holland affecting Cook County

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Safety message...If you encounter a flooded roadway...turn around and
find an alternate route.

Additional information can be found at weather.gov/chicago.

&&

ILC031-202110-
/O.EXT.KLOT.FL.Y.0013.000000T0000Z-180222T1930Z/
/SHLI2.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
310 AM CST Tue Feb 20 2018

The Flood Advisory continues for
  The Little Calumet River at South Holland
* until Thursday afternoon.
* At  230 AM Tuesday the stage was 13.7 feet.
* Action stage is 15.0 feet.
* Flood stage is 16.5 feet.
* Forecast...The river will rise to near 16.3 feet by early
  Wednesday.

&&

LAT...LON 4158 8760 4161 8767 4167 8762 4164 8755


$$





Flood Warning

Flood Statement
National Weather Service Chicago/Romeoville IL
304 AM CST Tue Feb 20 2018

...The Flood Warning continues for the following rivers in
Illinois...

  Thorn Creek at Thornton affecting Cook County

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Safety message...If you encounter a flooded roadway...turn around and
find an alternate route.

&&

ILC031-202304-
/O.EXT.KLOT.FL.W.0015.180220T0955Z-180223T1200Z/
/THNI2.1.ER.180220T0955Z.180221T1200Z.180223T0600Z.NO/
304 AM CST Tue Feb 20 2018

The Flood Warning continues for
  The Thorn Creek at Thornton.
* until Friday morning.
* At  230 AM Tuesday the stage was 8.8 feet.
* Flood stage is 10.0 feet.
* Minor flooding is forecast.
* Forecast...Rise above flood stage by early this morning and
  continue to rise to near 14.3 feet by Wednesday morning.
* Impact...At 14.5 feet...Flooding begins of low lying areas adjacent
  to creek.

&&

LAT...LON 4161 8760 4158 8754 4151 8760 4154 8767


$$





Flood Advisory

Flood Advisory
National Weather Service Chicago/Romeoville IL
846 PM CST Mon Feb 19 2018

...The Flood Advisory continues for the North Branch Chicago River...
  North Branch Chicago River at Chicago Albany Ave affecting Cook
  County

.Heavy rainfall of 1.5 to 3 inches is likely through Tuesday night with
locally heavier amounts in excess of 3 inches possible. The combination
of this heavy rainfall, frozen ground, and some snow melt will likely
result in flooding.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Safety message...If you encounter a flooded roadway...turn around and
find an alternate route.

Additional information can be found at weather.gov/chicago.

&&

ILC031-201446-
/O.CON.KLOT.FL.Y.0012.000000T0000Z-180222T0330Z/
/NBAI2.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
846 PM CST Mon Feb 19 2018

The Flood Advisory continues for
  The North Branch Chicago River at Chicago Albany Ave
* until Wednesday evening.
* At  800 PM Monday the stage was 2.1 feet.
* Action stage is 5.0 feet.
* Flood stage is 7.0 feet.
* Forecast...The river will rise to near 5.9 feet by early Wednesday
  morning.

&&

LAT...LON 4198 8767 4194 8765 4189 8771 4194 8774
      4196 8781 4203 8775

$$




U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: May 16, 2007
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