Indiana travel advisory map: how to read it before a day trip

By High Ropes Editorial Desk · Updated October 18, 2026

Indiana travel advisory map: how to read it before a day trip

Planning a day at a high ropes course, a state park hike, or a long drive across county lines usually starts the same way: checking the weather, packing a bag, and confirming that the destination is actually open. For Indiana residents and visitors, one extra step belongs in that routine, and that step is reading the Indiana travel advisory map. The map is maintained by the Indiana Department of Homeland Security and assigns a color code to every county, which gives drivers, families, and outdoor planners a quick read on whether local authorities are asking people to avoid nonessential travel.

The map is not a weather forecast, and it is not a traffic report. It is a snapshot of how each county’s emergency management agency is responding to current conditions, and those conditions often involve winter storms, flooded roads, severe thunderstorms, ice damage, or utility outages. Understanding what each color means, how often the map updates, and where it fits alongside other travel tools is the difference between a smooth family day out and a long detour around a closed bridge.

This guide walks through how the map is built, how to read each advisory level, when it actually matters for a casual day trip, and how to combine it with park-level information before you load the car. Two practical examples, a comparison table of advisory levels, and a short FAQ will help you fold the map into your normal planning routine without overthinking it.

What the Indiana travel advisory map actually shows

The Indiana travel advisory map is published by the Indiana Department of Homeland Security (IDHS) through its county-level emergency management partners. The goal is straightforward: tell the public, in a single glance, whether conditions in a county are routine, cautionary, or dangerous enough that travel should be limited. Counties are color-coded, and the colors are consistent across the state so that a driver crossing from Porter to LaPorte, or from Monroe to Brown, can interpret the change without reading a paragraph of text.

The map is a public information tool, not a regulatory one. A red or orange advisory does not legally bar anyone from driving. It is a request from local officials, usually the county emergency management agency or the county commissioners, to limit movement so that emergency crews can work, so that stranded vehicles do not block snowplows, and so that hospitals are not overwhelmed with weather-related injuries. Travelers who ignore a red advisory are not breaking a law, but they are choosing to drive into a situation that local responders have decided is too risky for routine trips.

For a day trip planner, the map is most useful in winter and during severe weather season. In July, when the state is sunny and warm, most counties sit at the lowest advisory level for days at a time. Between November and March, the same map can swing from green to red within twelve hours, which is why anyone planning a winter outing should treat the map as a morning-of check rather than a once-a-year reference.

The five advisory levels and what each one means

Indiana uses a five-level system. The levels are designed to be read at a glance, but the differences between them matter when you are deciding whether to drive two hours for a ropes course or postpone the trip.

The five levels are intentionally simple. They are not meant to replace road conditions reports, weather forecasts, or park-level closures. They are meant to be the first thing a planner checks, and the last thing a planner checks before turning the key.

How the map is updated and who decides each county’s color

Each county in Indiana has an emergency management agency. That agency, often in consultation with the county commissioners, the sheriff, and the Indiana Department of Homeland Security, decides which color to display. The agency submits the level to the state system, and the map is updated on the IDHS website and shared with media outlets.

Updates are not on a fixed schedule. During a typical week in late spring, the map might not change at all. During a winter storm, a county can move from green to orange to red and back to yellow within twenty-four hours. Some counties update the map more often than others, and rural counties with smaller emergency management staffs may take longer to post a change than a large county such as Marion or Allen.

For a planner, the practical takeaway is that you should not assume yesterday’s level is still accurate. If you checked the map on Sunday night and plan to drive on Saturday morning, the situation can have changed several times. The map is a real-time public safety tool, and it works best when it is checked on the morning of the trip, after the forecast has firmed up but before you back the car out of the driveway.

Where the Indiana travel advisory map fits in your planning routine

The map is one of several tools a thoughtful planner uses before a day trip. It does not replace the others, and the others do not replace it. A useful order of operations for a family day out in Indiana looks like this:

1. Check the weather forecast for the destination city and the route, paying attention to precipitation type, wind, and temperature swings around freezing.
2. Check the Indiana travel advisory map for every county on the route, not just the destination county.
3. Check the destination itself, such as a state park, ropes course, or event venue, for closures, weather-related schedule changes, or capacity limits.
4. Check road conditions through the Indiana Department of Transportation for live cameras, construction zones, and real-time incident reports.
5. Decide whether to go, postpone, or change the route, and let someone at home know the plan.

Skipping any one of these steps leaves a gap. A green advisory county with a flooded park road is still a wasted trip. A red advisory county with a clear forecast is still a trip to avoid. The advisory map is the connective tissue between the weather and the destination, and it is most useful when it is read alongside both.

Reading the map when the destination and the route disagree

One of the most common planning mistakes is to check the map only for the destination county. Indiana’s counties are small, and a day trip often crosses three or four of them. A driver heading from Indianapolis to a park in Brown County, for example, passes through Johnson, Morgan, and Monroe counties on the way. If the destination county is green but the route crosses an orange county, the trip is still affected.

The simplest way to handle this is to check every county on the route in order from origin to destination. If any county is orange or red, the trip is at risk. If a county in the middle of the route is yellow, expect slower travel, possible detours, and reduced services in small towns along the way. Treat the highest level on the route as the controlling level for the day.

This is also where a written itinerary helps. A short note on a phone or a scrap of paper that lists the counties, the advisory color, and the planned arrival time makes it easier to spot trouble before you are already on the road. A planner who has to flip back and forth between a forecast, a map, and a venue page is more likely to miss a change than a planner who has already written the day down.

Winter travel, severe weather, and the limits of the map

The Indiana travel advisory map is built for short, acute events. It works well for a single winter storm, a multi-day ice event, a severe thunderstorm complex, or a period of widespread flooding. It works less well for slow-building problems such as a long drought, a regional power outage, or a multi-week construction project on a major bridge. For those situations, the map will usually stay at green while other tools, such as utility outage maps and INDOT traffic cameras, tell a more accurate story.

It also does not capture conditions inside a state park or on a private property. A county can be entirely green while a specific trail is closed for a tree down, while a ropes course is shut for lightning risk, or while a lake access point is closed for high water. The map tells you whether the county’s emergency managers are worried about travel in general. It does not tell you whether the specific thing you planned to do is safe.

Severe weather adds another layer. Tornado warnings, severe thunderstorm warnings, and flash flood warnings are issued by the National Weather Service and appear on weather radios, weather apps, and local news. They are not the same as the county travel advisory, and they can be active in a green county. During severe weather season, the advisory map is a background tool and the active warnings are the foreground tool. Read both.

Example 1: A winter ropes course day in Brown County

A family of four is planning a Saturday at a high ropes course near Nashville, Indiana, in Brown County. They live in Indianapolis, so the route crosses Marion, Johnson, Morgan, and Brown counties. On Thursday night, the forecast shows a winter storm moving through central Indiana on Friday night into Saturday morning. On Friday evening, the family checks the Indiana travel advisory map.

• Marion County: orange, watch level, conditions threatening.
• Johnson County: orange, watch level, conditions threatening.
• Morgan County: yellow, advisory level, routine travel may be affected.
• Brown County: yellow, advisory level, routine travel may be affected.

Two of the four counties are at orange, which means travel is discouraged for nonessential trips. The family postpones the ropes course visit to the following weekend. The next Saturday, the map shows all four counties back at green, the forecast is clear, and the trip goes ahead as planned. Had the family skipped the map check and driven anyway, they would have faced snow-covered back roads, a ropes course that opened late, and a long return drive in fading daylight.

Example 2: A summer lake trip during a local emergency

A group of friends is planning a Saturday at a lake in northern Indiana, in a county that has been dealing with heavy rain for a week. On Thursday, the county’s emergency management agency posts a gray level on the Indiana travel advisory map, indicating that a local emergency has been declared. The roads are open, but specific low-lying areas are flooded, and a few local bridges are under observation.

The friends check the map and read the county’s local emergency page, which lists the affected roads. Their planned route crosses one of the listed roads. They call the lake’s marina, which confirms that the boat ramp is closed and that parking near the affected bridges is restricted. They change the plan, drive to a different lake in a neighboring green county, and have a normal day. Without the map, they would have arrived at a closed ramp and a flooded parking lot, and they would have spent the first hour of the day improvising.

How to combine the map with other planning tools

The Indiana travel advisory map is the most useful when it is read alongside three other sources. None of them is enough on its own, and each one fills a gap the others leave open.

Reading the four sources in this order, with the advisory map in the middle, gives a planner the full picture. A trip that looks good on the forecast, on the map, and on the venue page is usually a safe bet. A trip that looks good on the forecast but is in an orange or red county is not, and a trip that looks good on the map but is in a county under a severe thunderstorm warning is not either.

Practical checks before you load the car

Once the advisory map, the forecast, and the destination all line up, a short pre-departure checklist is worth running through. It takes a few minutes and prevents the most common day trip mistakes.

• Confirm the advisory level is green or yellow for every county on the route, and that no county has moved to orange or red since you last checked.
• Confirm the destination is open, including any timed entry, ticket, or reservation system. A green county with a sold-out venue is still a wasted trip.
• Check the fuel level, tire pressure, and windshield washer fluid. Winter and summer road debris both reduce visibility, and a long rural drive in Indiana can easily run two hours without a fuel stop.
• Pack a basic day kit: water, snacks, a phone charger, a paper map, a flashlight, a blanket, and a small first aid kit. These items matter more in a yellow or orange county than in a green one, and they are cheap insurance either way.
• Share the route and the expected return time with someone who is not on the trip. If something changes mid-day, that person is the one who knows where to start looking.

None of this is exotic. It is the same routine a careful family would run on a normal Saturday, scaled up slightly for a longer drive or a more uncertain forecast.

When the map is not enough

There are situations where the Indiana travel advisory map, even when read carefully, will not give a complete answer. Knowing those limits in advance prevents a planner from over-trusting the map and missing a more specific risk.

• Microclimates: Lake-effect snow along Lake Michigan can close roads in a single township while the rest of the county sits at yellow. The map averages the situation, so local radio or a county Facebook page is a better source for a community right next to the lake.
• Active construction: A long-term bridge replacement on a rural road can affect a route for months without ever triggering an advisory. The map is for emergencies, not infrastructure projects.
• Private property closures: A ropes course, a farm, or a private campground can close for any reason, including a power outage or a staff shortage, without the county changing color. Always call ahead.
• Air quality and heat: The advisory map is not designed to capture heat advisories, air quality alerts, or smoke from wildfires. Those are issued through different channels and can make a day outside unsafe even when the county is green.

For families planning a day at a high ropes course, a quick read of Rope Park Weather: Rain, Wind and Closure Questions to Ask pairs naturally with a check of the advisory map. The map tells you whether the county is asking people to stay home, and the rope park weather guide tells you whether the venue itself will operate in the conditions you are about to drive into.

What to do if the map changes mid-trip

Sometimes the advisory level changes while you are already on the road. A county that was yellow at sunrise can move to orange by early afternoon as conditions worsen. The right response is to stop, reassess, and decide whether to continue, change the route, or turn around.

1. Pull into a safe place, such as a parking lot or a rest area, before reading the updated map on a phone.
2. Check the counties ahead of you, not just the one you are in. A change at the destination is more important than a change where you already are.
3. Call the destination and confirm it is still open. A venue in a red county may have already closed for the day.
4. If the route ahead is orange or red, turn around or reroute to a closer, lower-risk option. A smaller day at a closer park is better than a long drive into deteriorating conditions.

This is also the moment when a written itinerary pays off. A planner who knows the route, the counties, and the planned arrival time can make a quick decision. A planner who is winging it has to reconstruct the whole plan in a parking lot while the weather worsens.

Building a personal planning habit around the map

Most people do not need to check the Indiana travel advisory map every day. They only need to check it when conditions are uncertain or when the trip crosses multiple counties. A simple habit is to fold the map into the same routine used for the weather forecast.

• Two or three days out: check the forecast and the general trend. Note any county that is currently orange or red.
• The day before: check the map again, the forecast, and the destination’s status. Decide whether to confirm the trip, postpone, or change the route.
• The morning of: a final check of the map and the forecast before loading the car. A change at this point is rare but possible, and it is the last chance to adjust the day.
• Mid-trip if conditions change: stop, reassess, and decide.

Done consistently, this habit takes about ten minutes total across the planning window. It is the kind of routine that becomes invisible after a few trips, and that is when it is working. A planner who has to think hard about whether to check the map has not yet built the habit, and a planner who never has to think about it has.

Frequently asked questions

What is the Indiana travel advisory map?

The Indiana travel advisory map is a public map published by the Indiana Department of Homeland Security that shows a color-coded advisory level for each of Indiana’s ninety-two counties. The levels range from green, meaning normal conditions, to red, meaning travel should be limited to emergency responders.

Who decides the color for each county?

Each county’s emergency management agency, often in consultation with the county commissioners and the sheriff, decides the advisory level and submits it to the state system. The Indiana Department of Homeland Security then displays it on the public map.

How often is the map updated?

The map is updated whenever a county changes its advisory level. There is no fixed schedule. During quiet weather, the map can stay the same for days. During a winter storm or a severe weather event, several counties can change levels within hours.

Is a red or orange advisory a legal restriction?

No. The advisory levels are requests from local officials, not legal restrictions. A red advisory asks the public to limit travel to emergency and essential trips, but it does not legally bar anyone from driving. Choosing to ignore a red advisory means choosing to drive into conditions that local responders consider too risky for routine trips.

Should I check the map in summer?

It is still worth a quick look, especially for severe weather days. Most Indiana counties sit at green through the summer, but severe thunderstorms, flooding, or a local emergency such as a fire or a utility outage can move a county to yellow, orange, or gray even in July.

Does the map tell me whether a specific park is open?

No. The map only reflects county-level travel conditions. A state park, a ropes course, or a private venue can close for reasons the map does not capture, such as a downed tree on a trail, a lightning policy, or a private booking. Always check the destination directly.

What is the difference between a yellow and an orange advisory?

Yellow means routine travel may be affected and you should use caution. Orange means conditions are threatening and travel should be limited to necessary trips. For a family day out, yellow is usually manageable with care, and orange is usually a reason to postpone.

Can a county be at gray without any travel problem?

Yes. Gray means the county has declared a local emergency for a specific issue, such as flooding or a utility outage, but travel conditions may still be normal. The roads are usually open, and a gray county often returns to green once the local situation is resolved. Read the local details to understand the specific problem.

Where can I see the map?

The map is published on the Indiana Department of Homeland Security’s website, and it is often shared by local media outlets and county emergency management agencies. A search for the official IDHS travel advisory page is the most reliable way to find the current version.

What should I do if the map changes while I am on the road?

Pull into a safe place, check the counties ahead of you, call the destination to confirm it is open, and decide whether to continue, change the route, or turn around. A smaller day at a closer destination is almost always better than driving into deteriorating conditions.