VALPARAISO | An active Flash Flood Warning is in effect for northwest Indiana. CGN News is publishing this alert because official National Weather Service alert data includes one or more CGN coverage areas: Lake County, Indiana, Porter County, Indiana, Jasper County, Indiana and Newton County, Indiana.
What is active now
The primary active alert is Flash Flood Warning with NWS severity listed as Severe, urgency listed as Immediate and certainty listed as Likely.
The alert became effective 3 July 2026 at 11:09 PM EDT. The current listed expiration or ending time is 4 July 2026 at 2:15 AM EDT. Readers should rely on the latest county-specific National Weather Service alert before making safety decisions.
Current official alerts
Flash Flood Warning: NWS lists the affected area as Cook, IL; Lake, IN. Current listed expiration or ending time: 4 July 2026 at 2:15 AM EDT.
Severe Thunderstorm Warning: NWS lists the affected area as Lake, IN. Current listed expiration or ending time: 4 July 2026 at 12:15 AM EDT.
Severe Thunderstorm Warning: NWS lists the affected area as Lake, IN. Current listed expiration or ending time: 3 July 2026 at 11:45 PM EDT.
Severe Thunderstorm Watch: NWS lists the affected area as Cook, IL; DuPage, IL; Ford, IL; Grundy, IL; Iroquois, IL; Kane, IL; Kankakee, IL; Kendall, IL; La Salle, IL; Livingston, IL; Will, IL; Benton, IN; Jasper, IN; Lake, IN; Newton, IN; Porter, IN. Current listed expiration or ending time: 4 July 2026 at 3:00 AM EDT.
Flood Watch: NWS lists the affected area as Lake; De Kalb; Kane; DuPage; La Salle; Kendall; Grundy; Northern Cook; Central Cook; Southern Cook; Northern Will; Southern Will; Eastern Will; Lake. Current listed expiration or ending time: 4 July 2026 at 5:00 AM EDT.
Flood Advisory: NWS lists the affected area as Lake, IN. Current listed expiration or ending time: 4 July 2026 at 3:00 AM EDT.
Coverage area
This CGN alert covers Lake County, Indiana, Porter County, Indiana, Jasper County, Indiana and Newton County, Indiana. Nearby communities may experience different conditions, and warnings can change quickly.
Safety
Do not drive through floodwater. Water can be deeper than it appears, and roads may be damaged beneath the surface. Keep children and pets away from flooded creeks, ditches, drainage areas and riverbanks.
Official instruction
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.
This alert should be updated if the National Weather Service issues, cancels, extends or replaces the active alert. Do not rely on this article alone for emergency decisions. Keep wireless emergency alerts enabled and monitor official NWS, NOAA, local emergency management and trusted local broadcast sources.
Additional Reporting By: National Weather Service; NOAA; National Weather Service Chicago