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Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
412 AM CDT Sat Sep 21 2019

Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-Cook-
La Salle-Kendall-Grundy-Will-Kankakee-Livingston-Iroquois-Ford-
Lake IN-Porter-Newton-Jasper-Benton-
412 AM CDT Sat Sep 21 2019 /512 AM EDT Sat Sep 21 2019/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Today and Tonight.

Weather hazards expected...

  Significant Thunderstorm Risk...with an associated:
     Limited strong and gusty wind 50 mph.
  Elevated Overnight Flooding Risk.


Showers and thunderstorms will be possible today. Some of these
storms may contain locally heavy rainfall.

An additional round of showers and storms is then expected late
tonight. This activity will have the potential to produce heavy
rainfall and flash flooding. A Flash Flood Watch is in effect for
locales along and west of I-57 tonight. Some thunderstorms will
also be capable of producing strong wind gusts to 50 mph tonight.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

  Limited Severe Thunderstorm Risk.
  Elevated Flooding Risk.
Tuesday through Friday...
  Limited Thunderstorm Risk.


Widespread showers and embedded thunderstorms are expected early
Sunday morning and through the afternoon and evening. Heavy
rainfall will continue to result in a threat for flash flooding,
along with renewed rises on area rivers into the upcoming week. A
Flash Flood Watch is in effect for locales along and west of I-57
through Sunday evening. Some stronger thunderstorms will be
possible Sunday afternoon and evening, mainly south of I-80 and
east of I-55 with a threat for strong wind gusts.


 Spotter activation is not expected at this time but rainfall
 reports are appreciated.


  Moving toward the northeast at 35 mph.


Flash Flood Watch

Flood Watch
National Weather Service Chicago IL
335 AM CDT Sat Sep 21 2019

Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-Cook-
La Salle-Kendall-Grundy-Will-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, Lake in the Hills, McHenry, Woodstock, Cary, Waukegan,
Buffalo Grove, North Chicago, Highland Park, Mundelein, Gurnee,
Round Lake Beach, Rochelle, Oregon, Mount Morris, Byron, Polo,
Dixon, DeKalb, Sycamore, Aurora, Elgin, Naperville, Wheaton,
Downers Grove, Elmhurst, Lombard, Carol Stream, Addison, Chicago,
Humboldt Park, Hyde Park, Lakeview, Lincoln Park, Logan Square,
Navy Pier, Ottawa, Streator, Peru, La Salle, Mendota, Marseilles,
Oswego, Boulder Hill, Yorkville, Plano, Morris, Coal City,
Minooka, Joliet, and Bolingbrook
335 AM CDT Sat Sep 21 2019


The National Weather Service in Chicago has issued a

* Flash Flood Watch for portions of north central Illinois and
  northeast Illinois, including the following areas, in north
  central Illinois, Boone, De Kalb, La Salle, Lee, Ogle, and
  Winnebago. In northeast Illinois, Cook, DuPage, Grundy, Kane,
  Kendall, Lake IL, McHenry, and Will.

* From this evening through late Sunday night

* Widespread showers and thunderstorms are expected to develop
  tonight and continue into Sunday and Sunday evening. These
  storms will be capable of producing heavy rainfall, with rates
  approaching 1.5 to 2 inches per hour at times. This expected
  heavy rainfall falling in a short duration and over locations
  that have experienced recent heavy rainfall may lead to
  additional flash flooding. Rainfall totals of 2 to 4 inches,
  with locally higher amounts, are possible by Sunday evening.

* This heavy rainfall will likely lead to additional river rises
  into the upcoming week, especially across the Des Plaines, Fox,
  Pecatonica, and Rock river basins.


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.



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