Merrillville Warnings, Watches and Advisories

Do not drive vehicles through flooded areas. The water depth or fast flowing water/mud/debris from a flash flood will make road conditions unsafe. Do not rely soley on data presented here or other third-party websites - always check your official national and local weather service agency website, socials, radio and/or TV stations for making critical decisions related to weather events.

Please carefully read each posted Warning and Alert as it relates to the area(s) being affected. We may provide a wider range of issued severe weather warnings for surrounding cities and counties, so some alerts may not directly impact this location. This is done to help with preparing for severe weather that may overlap or be heading towards Merrillville.

Use the Radar Maps link provided to understand the trajectory of a storm.

Hydrologic Outlook issued January 24 at 10:25AM EST by NWS Northern Indiana

ESFIWX Favorable conditions for possible river ice jams are expected over the next week. Bitterly cold temperatures have created some ice formation on area rivers and with slight warming later this weekend and into early next week may make for favorable conditions for ice jams on area rivers and tributaries. River ice spotters are asked to report any ice jams or ice jam flooding. Any ice jam that develops will have the potential to cause rises on area rivers with little to no warning and isolated areas of flooding are possible. This outlook means that elevated water levels and potential impacts are possible, but not yet certain. Persons along area rivers should continue to monitor the latest forecasts over the next week.