In May 2017 Madison County Emergency Management alerts forecast a White River crest near 13.9 feet at Anderson. A forecast is not a record of the height reached, and this guide does not treat it as one. The alert is still useful for showing which impacts a household should plan for.
Key takeaways
- The May 2017 Madison County alerts forecast a White River crest near 13.9 feet at Anderson.
- A forecast is a prediction issued before the water rises, and it is not a record of the height reached.
- The alert listed the National Weather Service's historical stage impacts, including flooding of all city parks at the highest stage.
- This guide does not state the crest that occurred in 2017, because that height was not confirmed for this page.
- A forecast alert is most useful when a household acts on the impacts it describes, not only on the number.
- A household that keeps its own record of the water line gets a clearer answer than any single forecast figure.
What did the 2017 alert actually forecast?
The Madison County Emergency Management alert forecast a White River crest near 13.9 feet at Anderson. It was an alert about what the river was expected to do, issued while the water was still rising, and it is a forecast rather than a measurement.
Emergency management alerts are issued to give people time to act. A forecast crest is a best estimate at the time of issue, based on the rain that has fallen and the river's current readings and expected flow. It carries uncertainty, and the figure can be revised as the river responds. A reader who sees 13.9 feet should understand it as the expected height at the time, not the height that followed.
The alert's value lies in the time it gives. A household that reads an alert of this kind can move valuables, check the lowest level and plan the first hours before the water arrives. The number is the prompt, and the actions are what protect the house.
Why does a forecast differ from the crest that occurred?
A forecast can differ from the crest that occurs because rainfall, ground conditions and upstream flow all change after the forecast is issued. The river's peak is the observed figure, and a reader should check whether a later source gives it before quoting it.
The river responds to the weather, and the weather is uncertain. Rain that falls after an alert is issued can push a crest higher, and a dry spell can hold it lower. The ground also matters, since saturated soil sends more water to the channel than dry soil does. A forecast is one moment's view of a system that keeps moving.
For that reason, this guide does not state the height the White River reached in May 2017. The only figure the guide has from that event is the forecast, and a forecast is not a substitute for a record. A reader who needs the observed height should look for the gauge's record for that date.
What did the historical stage impacts in the alert describe?
The alert listed the National Weather Service's historical stage impacts, including flooding of all the city parks at the highest stage. Those impacts describe what the river has done at high stages in the past, and they give a household a concrete picture of what high water can mean in the city.
Historical impacts are a useful counterpart to a forecast. A number tells you how high the water may be, while an impact tells you what the water will affect. The alert's note that all the city parks flood at the highest stage shows how widely the river's effects reach beyond the homes near it.
For a homeowner, the impacts point to the things that matter. Low-lying roads, parks, the lowest floors of buildings and the entries below ground all change once the river is high. A household that lists those in advance can plan its first steps with the alert in hand.
What should a household do with a forecast alert?
Treat the alert as a prompt to act. Move valuables off the lowest floor, check the sump and its power, clear the window wells and the drains, photograph the lowest room and keep the 24/7 line number handy. Do these before the water arrives.
Start with the items that cannot be replaced, and move them out of the room that the river may reach. Photograph the room first, with its water marks if there are any, so the condition before the water is on record. Label what is moved, so the household can find it again quickly.
Then check the building itself. Confirm the sump runs and its discharge is clear, and check that the electrical panel and the shut-off valve can be reached safely. The actions are simple, and a household that has done them before the water rises has a much calmer first day.
What does a river alert tell a homeowner about the lower floor?
A river alert tells a homeowner that the water is expected to rise to a level that may affect low areas. It does not say what will happen inside a particular house, which depends on its entries, its foundation and the ground around it.
The lowest floor is the one most at risk, because water reaches it first and stays longest. A basement with a window well, a door at a low point or a crack in the foundation can take water even when the river is some way below its banks. The alert is a reason to inspect those points, not a verdict on the house.
A walk through the lowest level, with a note of the entries, the sump and the water marks, turns the alert into a plan. The plan can then be updated as new alerts come in, and the homeowner knows what each change in the river means for their own building.
How should a household keep its own water line record?
Mark each water line in the lowest room with its height above the floor and the date, and photograph each mark with a tape measure in view. Keep those notes with the household insurance papers, so the record exists before any alert is issued.
A household record is the simplest way to answer the question a forecast cannot. Each time water reaches the lowest level, the highest line it leaves should be marked on a fixed surface, such as a post or a stair stringer, with its height and the date. A pencil mark with a tape measure beside it is enough, provided the mark is kept and the photograph shows the measure clearly.
Over several years the marks show the water that has actually reached the house, which is a local record that no regional figure can supply. The marks also make a claim easier, because the water line is evidence of the water that came in, measured against the building itself rather than against an estimate made later.
What should a household ask the county before a river alert?
Ask where alerts are published, which river stages trigger them and which office to call for road closures or evacuation advice. Keep those contacts on paper as well as on a phone, because a phone may fail when the power does.
Emergency management offices publish the alerts they issue, and they can explain the stages that prompt each one. A household that knows the alert channels and the stages in advance will not be learning them during the event. Ask the office how it notifies residents, whether by message, by broadcast or by a notice in person, and sign up for any service that is offered.
Ask also which advice the county gives for travel and for entry to flooded areas, and where to call about a road that is closed. Those answers change with each event, so the office is the authority to check at the time. This guide does not set out that advice, and a reader should follow the instructions the county issues during an alert.
How should the 2017 alert be compared with the 1913 record?
The 1913 record is a measured crest, and the 2017 figure is a forecast. The two answer different questions and should be compared only as what they are. The table sets out the differences so a reader can see where each belongs.
The 1913 figure is the height the Midwest Regional Climate Center records for the March 1913 crest, on the gauge then in use. The 2017 figure is a forecast issued from Madison County Emergency Management. A reader who places them side by side should keep their status in mind, since one is a record of what happened and the other was a prediction of what was expected.
The comparison is still useful, because it shows the river can rise to a level that alerts must take seriously. The table below sets out the two figures and their status for easy reference.
| Item | May 2017 county alert | March 1913 record |
|---|---|---|
| Figure | Forecast crest near 13.9 feet | Crest of 22.1 feet on the gauge then in use |
| Status | Forecast issued before the water rose | Measured crest, as recorded by the climate center |
| Source | Madison County Emergency Management alert | Midwest Regional Climate Center flood profile |
| Reached? | Not confirmed for this guide | Recorded as the record crest for the event |
What should a reader take from the May 2017 alert?
Take from the alert the reminder to act early, and the list of impacts it gives. Do not take from it a confirmed height for 2017, because the page does not confirm one. The practical lesson is that a forecast crest deserves the same preparation as a recorded one.
The alert reminds a household that the White River can rise far enough to matter, and that the warning may come with only a short time to act. The response in the household should not depend on whether the crest turns out lower or higher than the forecast. Preparation is the same either way.
A household that keeps a record of its own water line, the state of its lowest floor and the steps it will take at each stage will be better placed than one that relies on any single alert. The alert is part of that record, not a substitute for it.
Frequently asked questions
How high did the White River get in May 2017?
This guide does not state a height reached. The county alert forecast a crest near 13.9 feet at Anderson, and a forecast is not a record of what occurred. For the observed height, check the gauge's record for that date.
Who issued the 2017 alert?
The alert was issued by Madison County Emergency Management. It gave the forecast crest and listed the historical impacts the National Weather Service associates with high stages.
Did all the city parks really flood in 2017?
The alert listed flooding of all the city parks among the historical impacts at the highest stage. That describes the impact at that stage, and this guide does not claim that the parks flooded in 2017.
Why is a forecast not the same as a record?
A forecast is a prediction made before the water rises, and it can change with rainfall and flow. A record is the observed height of the water once it has passed. A reader should check which kind of figure a source gives.
What should I do when a forecast alert is issued now?
Move valuables off the lowest floor, check the sump, clear the window wells and photograph the lowest room before the water arrives. Keep the 24/7 line number where it can be found quickly, and call if water enters.
Should I decide to leave based on the forecast number?
Follow the instructions of local emergency officials, and decide on the warnings and the conditions you can see, not only on a single figure. A forecast is an estimate, and officials issue advice that accounts for the road, the ground and the people in the area.
Sources
This guide is general information for Madison County homeowners, not a substitute for an on-site inspection. Prices are estimates. See our disclaimer.