3 products issued by NWS for: 3 Miles NW Merrillville IN
Flood Advisory
Flood Advisory
National Weather Service Chicago IL
1049 PM CDT Thu Jun 11 2026
ILC197-INC089-127-120945-
/O.NEW.KLOT.FA.Y.0039.260612T0349Z-260612T0945Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Will IL-Lake IN IN-Porter IN-
1049 PM CDT Thu Jun 11 2026
...FLOOD ADVISORY NOW IN EFFECT UNTIL EARLY FRIDAY MORNING...
...REPLACES PREVIOUSLY ISSUED FLOOD ADVISORY...
* WHAT...Flooding caused by excessive rainfall continues.
* WHERE...Portions of eastern Will County in Illinois and Lake and
Porter counties in Indiana
* WHEN...Until 445 AM CDT.
* IMPACTS...Creeks and streams may rise out of their banks. Flooding
may occur in poor drainage and urban areas.
* ADDITIONAL DETAILS...
- At 1047 PM CDT, multiple stream gauges indicated rises above
bankfull and flood stage across the area. Streams may
continue to rise into the overnight hours from earlier heavy
rainfall. Some poor drainage areas may continue to recede
slowly.
- Some locations that will experience flooding include...
Hammond, Gary, Portage, Merrillville, Valparaiso,
Schererville, Hobart, Crown Point, Highland, Munster,
Chesterton, Cedar Lake, Griffith, Dyer, St. John, Lake
Station, South Haven, Winfield, New Chicago and Burns Harbor.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Flood Advisory means minor flooding along waterways and other poor
drainage areas is imminent or may already be occurring. Persons in
the advisory area should use caution and avoid flood waters.
&&
LAT...LON 4136 8757 4141 8757 4154 8748 4162 8735
4165 8716 4160 8712 4155 8699 4150 8696
4141 8703 4140 8709 4147 8717 4144 8720
4139 8731 4137 8743 4128 8747 4128 8749
4134 8753
$$
WSL
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1003 PM CDT Thu Jun 11 2026
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-130315-
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
1003 PM CDT Thu Jun 11 2026 /1103 PM EDT Thu Jun 11 2026/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Limited Thunderstorm Risk in northwest Indiana.
DISCUSSION...
Scattered thunderstorms will come to an end across northwest
Indiana through midnight tonight. No additional severe weather is
expected.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday.
Saturday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Tuesday and Wednesday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the east-northeast at 45 mph.
$$
Flood Warning
Flood Warning
National Weather Service Chicago IL
944 PM CDT Thu Jun 11 2026
...The National Weather Service in Chicago IL has issued a Flood
Warning for the following rivers in Illinois...Indiana...
Little Calumet River at Munster (Hohman Avenue) affecting Lake IN
and Cook Counties.
For the Little Calumet River...including Munster (Hohman Avenue)...
Minor flooding is forecast.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Flood Warning means water levels above flood stage are imminent or
may already be occurring. Persons along rivers and streams in the
warned area should take immediate precautions to protect life and
property.
These forecasts are based on observed precipitation as well as
forecast precipitation 24 hours into the future.
Additional information is available at www.weather.gov.
The next statement will be issued by Friday afternoon.
&&
ILC031-INC089-122045-
/O.NEW.KLOT.FL.W.0037.260612T0400Z-260613T0000Z/
/LCMI3.1.ER.260612T0400Z.260612T0900Z.260613T0000Z.NO/
944 PM CDT Thu Jun 11 2026
...FLOOD WARNING IN EFFECT UNTIL TOMORROW EVENING...
* WHAT...Minor flooding is forecast.
* WHERE...Little Calumet River from IN-912 in Hammond downstream to
confluence with Thorn Creek in South Holland, including the
Munster (Hohman Avenue) gauge.
* WHEN...Until tomorrow evening.
* IMPACTS...At 12.5 feet, Most areas outside of the levee-protected
area are inundated in Hammond and Munster.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Thursday the stage was 10.7 feet.
- Forecast...The river is expected to quickly rise above flood
stage late this evening to a crest near 13.0 feet late
tonight.
- Flood stage is 12.0 feet.
- http://www.weather.gov/safety/flood
&&
LAT...LON 4163 8756 4159 8740 4153 8743 4157 8758
$$
WSL