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Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
324 PM CDT Sun May 20 2018

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-
324 PM CDT Sun May 20 2018 /424 PM EDT Sun May 20 2018/

Northeast Illinois AND Northwest Indiana.

.DAY ONE...Tonight.

  Limited Thunderstorm Risk.
  Limited Flooding Risk.
  Limited Fog Risk.


Isolated to scattered thunderstorms are possible, with the better
chances favored overnight. While there will be brief heavy
downpours, severe weather is not anticipated.

Fog is possible after dark, and cannot rule out dense fog.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

  Limited Severe Thunderstorm Risk.
  Limited Fog Risk.
Thursday through Saturday...
  Limited Thunderstorm Risk.


Thunderstorms are possible Monday morning, with likely a midday
break before more are possible again mainly along and east of
Interstate 57 during the afternoon into early evening. A few of
these afternoon storms could be severe.


Spotter activation will not be necessary through tonight.


Moving to the northeast at 35 mph.



Hydrologic Outlook

Hydrologic Outlook

Hydrologic Outlook
National Weather Service Milwaukee/Sullivan WI
915 PM CDT Sun May 20 2018

This hydrologic outlook is in response to 0.50" to 0.75" of rain
forecast across the basin over the next 24 hours.

Below is preliminary river forecast information. River forecasts
are normally updated twice a day - in the morning and evening.
The 7 day forecasts take into account past precipitation, soil
moisture, and predicted precipitation. Precipitation is for 24
hours into the future for April through September and 48 hours
into the future for October through March.

  Fox River
    at New Munster

-                                                Maximum
(stages in ft.)             Latest              forecast
               Flood       observed           stage in next
Location       stage     stage/time/day          7 days

New Munster    11.0     10.87 8 PM 5/20      11.50  7 AM 5/23

Below is the latest predicted precipitation information in 6 hour
increments for the listed sites. This information is updated twice
daily - in the morning and evening. River forecasts take into
account predicted precipitation amounts 48 hours into the future
from October through March and for 24 hours into the future from
April through September.

New Munster: 6 pm-midn  Sun May 20  0.00
New Munster: midn-6 am  Mon May 21  0.20
New Munster: 6 am-noon  Mon May 21  0.42
New Munster: noon-6 pm  Mon May 21  0.22
New Munster: 6 pm-midn  Mon May 21  0.00
New Munster: midn-6 am  Tue May 22  0.00
New Munster: 6 am-noon  Tue May 22  0.00
New Munster: noon-6 pm  Tue May 22  0.00


LAT...LON 4262 8832 4262 8814 4252 8813 4245 8811 4245 8827 4255 8825


Flood Warning

Flood Statement
National Weather Service Chicago/Romeoville IL
818 PM CDT Sun May 20 2018

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

  Des Plaines River near Gurnee affecting Lake County
  Fox River at Algonquin Tailwater affecting Kane and McHenry Counties


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


818 PM CDT Sun May 20 2018

The Flood Warning continues for
  The Des Plaines River near Gurnee.
* until Friday morning.
* At  730 PM Sunday the stage was 7.6 feet.
* Flood stage is 7.0 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Forecast...The river will continue rising to near 7.9 feet by
  Tuesday morning. The river will fall below flood stage early Friday
* Impact...At 7.0 feet...Flooding begins to affect the lowest areas
  near the river.


LAT...LON 4239 8787 4230 8791 4223 8788 4224 8797
      4230 8800 4239 8796


U.S. Dept. of Commerce
NOAA National Weather Service
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Silver Spring, MD 20910
Page last modified: May 16, 2007
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