Flash Flood Warning — Lake County, Indiana
Flooding is imminent or already occurring. Move to higher ground immediately — never drive through flooded roads.
Current Status
🌊 Active: Flash Flood Warning
Flash Flood Warning issued August 9 at 5:54PM CDT until August 9 at 8:00PM CDT by NWS Chicago IL
FFWLOT The National Weather Service in Chicago has issued a * Flash Flood Warning for... Eastern Lake IN County in northwestern Indiana... Northwestern Porter County in northwestern Indiana... * Until 800 PM CDT. * At 554 PM CDT, Doppler radar and automated rain gauges indicated thunderstorms producing heavy rain across the warned area. Between 1.5 and 2.5 inches of rain have fallen. The expected rainfall rate is 1.5 to 3 inches in 1 hour. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. 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... Portage, Chesterton, Lake Station, Porter, Burns Harbor, Ogden Dunes and Dune Acres.
Effective August 9, 2026 at 6:54 PM ET · Expires August 9, 2026 at 9:00 PM ET
Event Details
Event Type
Flash Flood Warning
Severity
severe
Issued By
NWS Chicago IL
Expires
August 9, 2026 at 9:00 PM ET
Last Checked
49 minutes ago
What To Do
📋 Official NWS Guidance
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.
Also In Effect For
This same Flash Flood Warning also covers:
Other Active Alerts in Indiana
Flood Advisory
Flood Advisory
Severe Thunderstorm Watch
Flood Advisory
Flood Advisory
Flood Advisory
Get Flash Flood Warning Alerts for Lake County
StormCast checks the NWS feed continuously and pushes alerts like this directly to your phone — even with the screen off.
Frequently Asked Questions
What does a Flash Flood Warning mean for Lake County, Indiana?
Flooding is imminent or already occurring. Move to higher ground immediately — never drive through flooded roads.
Is this Flash Flood Warning currently active?
Yes — this alert is active as of our last check (49 minutes ago). It's set to expire August 9, 2026 at 9:00 PM ET.
How do I get notified about Flash Flood Warning alerts for Lake County?
Download StormCast free on Google Play and set Lake County, Indiana as one of your monitored locations. StormCast checks the NWS feed continuously and pushes alerts like this directly to your phone — even with the screen off.
What other areas does this alert cover?
This same Flash Flood Warning is also in effect for Porter County.