Station Name: Lockport L&D 2
Data Source: USGS

Elevation Above Sea Level: 561 feet

Nearest Address:
South Powerhouse Drive
Lockport, IL 60434
Will County

GPS Coordinates: 41.5697, -88.0783

Nearby Water Temperatures

Hydrologic Outlook issued June 8 at 12:44PM CDT by NWS Chicago IL

Effective: Mon June 8, 2026, 12:44 PM
Expires: Tue June 9, 2026, 12:00 AM

ESFLOT Periods of showers and thunderstorms are expected to move back into northern Illinois this afternoon and evening. Some showers and thunderstorms will be capable of rain rates of 2-3 inches per hour, which could cause isolated flooding, especially in urban areas or areas that recently received heavy rainfall. Atmospheric conditions are very favorable for high rainfall rates as precipitable water values have been observed just under 2 inches with forecasted values near or exceeding 2 inches by later today. Despite the favorability for heavy rainfall, most of northern Illinois is experiencing drought conditions with low rivers and low soil moisture. Due to dry conditions, higher rainfall rates will be required for flooding, making the scope of possible flooding more isolated. Locations with the highest chance of ponding and localized flooding due to heavy rainfall are urban areas or areas that received heavy rainfall over the last few days, including isolated portions of La Salle, Livingston, Ford, Iroquois, Kankakee, and Will counties. This outlook means that elevated water levels and potential impacts are possible, but not yet certain. Persons should closely monitor the latest forecasts. No updates to this outlook product are currently scheduled.

Flood Advisory issued June 9 at 12:44AM CDT until June 9 at 2:30AM CDT by NWS Chicago IL

Effective: Tue June 9, 2026, 12:44 AM
Expires: Tue June 9, 2026, 2:30 AM

* WHAT...Flooding caused by heavy rainfall continues. * WHERE...Portions of northeast Illinois, including the following counties, Kankakee and Will and northwest Indiana, including the following counties, Lake IN, Newton and Porter. * WHEN...Until 230 AM CDT. * IMPACTS...Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. Roads and streets may be flooded. * ADDITIONAL DETAILS... - At 1243 AM CDT, Doppler radar and automated rain gauges indicated heavy rain falling across portions of the Advisory area. Between 1 and 3 inches of rain have fallen, and up to an additional inch of rain may fall. - Some locations that will experience flooding include... Hammond, Gary, Portage, Merrillville, Valparaiso, East Chicago, Schererville, Hobart, Crown Point, Highland, Munster, Chesterton, Cedar Lake, Lowell, Momence, Griffith, Dyer, St. John, Lake Station and Lakes of the Four Seasons. - http://www.weather.gov/safety/flood

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. Be especially cautious at night when it is harder to recognize the dangers of flooding.

Flood Advisory issued June 9 at 12:39AM CDT until June 9 at 2:30AM CDT by NWS Chicago IL

Effective: Tue June 9, 2026, 12:39 AM
Expires: Tue June 9, 2026, 2:30 AM

* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...A portion of northeast Illinois, including the following county, Cook. * WHEN...Until 230 AM CDT. * IMPACTS...Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. Roads and streets may be flooded. * ADDITIONAL DETAILS... - At 1237 AM CDT, Doppler radar and automated rain gauges indicated heavy rain due to thunderstorms. Between 1 and 2 inches of rain have fallen over the past few hours in portions of the advisory area. - Additional rainfall amounts up to 1 inch, locally higher, are expected over the area. Runoff from the rain that has fallen and the additional rainfall will result in flooding. - Some locations that will experience flooding include... South Chicago, Hammond, Orland Park, Tinley Park, Oak Lawn, Calumet City, Chicago Heights, Roseland, Chicago Lawn, Englewood, South Shore, Burbank, Lansing, Oak Forest, Harvey, Homer Glen, Blue Island, Dolton, Park Forest and Homewood. - http://www.weather.gov/safety/flood

A Flood Advisory means 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. Be especially cautious at night when it is harder to recognize the dangers of flooding.

Flash Flood Warning issued June 9 at 1:16AM CDT until June 9 at 2:45AM CDT by NWS Chicago IL

Effective: Tue June 9, 2026, 1:16 AM
Expires: Tue June 9, 2026, 2:45 AM

At 116 AM CDT, Doppler radar and automated rain gauges indicate between 2 and 3 inches of rain have fallen, much of it in the past 1 to 2 hours. Additional rainfall amounts up to 1 inch are possible in the warned area over the next hour. Local law enforcement reported multiple roadways with water on them in Crown Point and on the north side of Lowell. Flash flooding is likely ongoing in portions of the warned area. HAZARD...Flash flooding. SOURCE...Radar and automated gauges. IMPACT...Rapid-onset flooding of creeks, streams, drainage ditches, streets, underpasses, low-lying areas, and other poor drainage areas. Some locations that will experience flash flooding include... Gary, Portage, Merrillville, Schererville, Hobart, Crown Point, Highland, Cedar Lake, Lowell, Griffith, St. John, Lake Station, Lakes of the Four Seasons, Winfield, New Chicago and Lake Dalecarlia.

A Flash Flood Warning means rapid-onset flooding is imminent or may already be occurring. Persons along creeks, drainage ditches, and other waterways should take immediate precautions to protect life and property. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding.