ESFLOT

Showers and thunderstorms are expected to move across much of
northern IL this evening. Heavy rainfall rates of up to two inches
per hour will be possible with these storms as they shift east
southeastward across northern Illinois through the evening. Rainfall
amounts of this magnitude may cause instances of localized flash
flooding, along with significant rises on area streams and rivers,
some of which could
reach or exceed flood stage, especially along portions of the Rock
river.

This outlook means that elevated water levels and potential impacts
are possible, but not yet certain. Persons with interests along area
streams and rivers should closely monitor the latest forecasts.

There are currently no updates scheduled for this outlook.

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH
447 IN EFFECT UNTIL 1 AM CDT SUNDAY FOR THE FOLLOWING AREAS

IN ILLINOIS THIS WATCH INCLUDES 16 COUNTIES

IN CENTRAL ILLINOIS

LIVINGSTON

IN NORTH CENTRAL ILLINOIS

BOONE DE KALB LA SALLE
LEE OGLE WINNEBAGO

IN NORTHEAST ILLINOIS

COOK DUPAGE GRUNDY
KANE KANKAKEE KENDALL
LAKE IL MCHENRY WILL

IN INDIANA THIS WATCH INCLUDES 1 COUNTY

IN NORTHWEST INDIANA

LAKE IN

THIS INCLUDES THE CITIES OF ALGONQUIN, AURORA, BELVIDERE,
BOLINGBROOK, BOURBONNAIS, BUFFALO GROVE, BYRON, CAROL STREAM,
CHICAGO, COAL CITY, CRYSTAL LAKE, DEKALB, DIXON, DOWNERS GROVE,
DWIGHT, ELGIN, EVANSTON, FAIRBURY, GARY, GURNEE, HAMMOND, JOLIET,
KANKAKEE, LA SALLE, LEMONT, LOMBARD, MARSEILLES, MCHENRY,
MENDOTA, MERRILLVILLE, MINOOKA, MORRIS, MUNDELEIN, NAPERVILLE,
OAK LAWN, OREGON, ORLAND PARK, OSWEGO, OTTAWA, PARK FOREST,
PLANO, PONTIAC, ROCHELLE, ROCKFORD, SCHAUMBURG, STREATOR,
SYCAMORE, WAUKEGAN, WHEATON, WILMINGTON, WOODSTOCK,
AND YORKVILLE.

* WHAT...Flash flooding caused by excessive rainfall is possible.

* WHERE...Portions of north central and northeast Illinois,
including the following areas, in north central Illinois, Boone,
De Kalb, La Salle, Lee, Ogle and Winnebago. In northeast Illinois,
Central Cook, DuPage, Eastern Will, Grundy, Kane, Kendall, Lake
IL, McHenry, Northern Cook, Northern Will, Southern Cook and
Southern Will.

* WHEN...Until 1 AM CDT Sunday.

* IMPACTS...Creeks and streams may rise out of their banks. Flooding
may occur in poor drainage and urban areas.

* ADDITIONAL DETAILS...
- Thunderstorms will develop into Northern Illinois this
evening with locally heavy rainfall possible. The potential
for slow movement or training of thunderstorm cells may
produce rainfall amounts in excess of 2 inches with localized
amounts in excess of 4 inches possible.
- http://www.weather.gov/safety/flood

At 1019 PM CDT, severe thunderstorms were located along a line
extending from near Genoa to near Kingston to near Sycamore to near
Malta, moving east at 60 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

These severe storms will be near...
DeKalb, Sycamore, and Cortland around 1025 PM CDT.
Maple Park around 1030 PM CDT.

ESFLOT

Flooding of rivers, creeks, ditches, and poor drainage areas
possible across northeastern Illinois and northwestern Indiana later
this week. Significant river rises and renewed flooding possible
along the Iroquois, Kankakee, Des Plaines, Fox, and Illinois rivers.

Rainfall is expected to develop and move into the Midwest during the
day on Wednesday and continue through Thursday night. Widespread
rainfall of at least half an inch is likely, with localized totals
near 2 to 3 inches possible. Runoff from this rainfall will be
increased due to high soil moisture values across the region due to
recent wet weather. Significant rises are possible on area streams
and rivers, including the possibility of renewed flooding on the
Iroquois, Kankakee, Des Plaines, Fox, and Illinois rivers and their
tributaries. In addition to flooding of larger rivers, flooding of
fields, ditches, and poor drainage areas may also occur. Confidence
in the exact placement of rainfall and the exact rainfall totals
remains low at this time, which prevents more specific forecasts.

This outlook means that elevated water levels and potential impacts
are possible, but not yet certain. Persons with interests along area
rivers should closely monitor the latest forecasts including the
possibility of flood watches, warnings, and advisories.

This product may be updated tomorrow if the possibility of heavy
rainfall and flooding continues.

ESFLOT

Flooding of rivers, creeks, ditches, and poor drainage areas
possible across portions of eastern Illinois and northwestern
Indiana later this week. Significant river rises and renewed
flooding possible along the Iroquois, Kankakee, Des Plaines, Fox,
and Illinois rivers.

Rainfall is expected to begin tonight and continue into Thursday and
Thursday night. Widespread rainfall totals of at least half an inch
are likely. Rainfall totals of 1 to locally over 2 inches are
possible east of I-55, and especially across northwest Indiana.

Runoff from this rainfall will be increased due to high soil
moisture values across the region due to recent wet weather.
Significant rises are possible on area streams and rivers, including
the possibility of renewed flooding on the Iroquois, Kankakee, Des
Plaines, Fox, and Illinois rivers and their tributaries. In addition
to flooding of larger rivers, some minor flooding of fields,
ditches, and poor drainage areas may also occur. Confidence in the
exact placement of rainfall and the exact rainfall totals remains
low at this time, which prevents more specific forecasts.

This outlook means that elevated water levels and potential impacts
are possible, but not yet certain. Persons with interests along area
rivers should closely monitor the latest forecasts including the
possibility of flood watches, warnings, and advisories.

This product may be updated tomorrow if the possibility of heavy
rainfall and flooding continues.