When the forecast is wrong
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Government immunity, a forty-year-old case about lobstermen, and the reason a report on this platform will never be labeled a warning.
In this lesson you will
- Explain why forecast error is generally not actionable against the government.
- Paraphrase the NWS disclaimer on warranties and liability.
- Explain platform immunity for user content and three of its limits.
- Explain why reports must never be presented as official.
General legal education, not legal advice. This module describes federal law that applies nationally and principles that apply broadly, and it deliberately avoids stating what any individual state requires, because that varies and it changes. Nothing here creates a lawyer-client relationship. For anything that turns on where you are standing, read your own state code or ask somebody qualified in your jurisdiction.
Forecasting is a judgment call, legally speaking
The United States can be sued for the negligence of its employees, with exceptions, and one exception does most of the work here: claims based on the performance of a discretionary function are excluded. If an official had to exercise judgment, the decision is generally not actionable even if the judgment was bad.
A federal appeals court applied this to weather forecasting in 1986, in a case brought by lobstermen whose gear was destroyed after a marine forecast missed a storm. The court described a forecast as "a classic example of a prediction of indeterminate reliability" and "a place peculiarly open to debatable decisions", and the claim failed.
Consider the alternative. If every missed forecast were actionable, the rational response for any forecaster would be to warn for everything, constantly, and module 1 lesson 7 showed what that does: false alarms train people to ignore warnings, and the system stops working. A forecaster who can be sued for being wrong produces worse forecasts, not better ones.
The agency says so itself
The disclaimer on weather.gov is short and worth reading once, because the same reasoning governs every weather product you will ever use, including this one.
The user assumes the entire risk related to its use of information
on NWS Web pages. NWS is provides such information "as is," and NWS
disclaims any and all warranties, whether express or implied,
including (without limitation) any implied warranties of
merchantability or fitness for a particular purpose.weather.gov disclaimer, read 11 September 2026. Quoted exactly, including the "NWS is provides" slip, which is really in the published text. This course does not tidy up quotations.
Platforms and what other people say
A separate federal rule governs a service that publishes what its users write. Its core sentence is one of the most consequential in internet law and it is one line long.
No provider or user of an interactive computer service shall be
treated as the publisher or speaker of any information provided by
another information content provider.47 U.S.C. 230(c)(1). Quoted in full.
In plain terms: a platform is generally not liable for what its users post, and it does not lose that protection merely by moderating, editing for length, or deciding what to show. That is what lets any user-generated service exist at all.
The protection is for other people's content. It does not cover content the platform itself develops, which is the line this module cares about. It does not cover federal criminal law, or intellectual property claims. A platform that materially rewrites a report, or dresses it up as something it is not, has started producing its own content, and is arguing from a much weaker position.
Which is why a report here is never a warning
This is the design consequence, and it is the reason the presentation rules on this platform are what they are. The legal reasoning and the warning-system reasoning point the same way, which is usually a sign that both are right.
| An NWS warning | A report on this platform |
|---|---|
| Issued by a federal forecast office with legal authority | Submitted by a member of the public with none |
| A product of expert judgment across many data sources | One person's observation of one place |
| Triggers alerting infrastructure | Triggers nothing |
| Official | Never labeled official, ever |
Module 10 lesson 6 gave the operational version: if life is at risk, contact the Weather Service or call 911 directly. This is the legal half of the same instruction.
The answer is no, and for two reasons rather than one. Legally, presenting a user report as an official warning is the platform developing content and asserting a warranty it cannot honor. Practically, a competing unofficial warning damages the real warning system, which module 1 lesson 7 showed runs on public trust that is easy to spend and slow to rebuild.
What the platform does instead is the plausibility tiering every module since the fifth has described: a report is checked against radar, presented with an honest confidence, and never automatically discarded. Module 9 lesson 8 explained why auto-rejection would be wrong on the science. This lesson is why over-claiming would be wrong on the law.
Check yourself
A user insists their tornado report be displayed with the label "OFFICIAL TORNADO WARNING". What is the correct response and why?
- Refuse. It would be the platform developing its own content and asserting authority it does not have, and it undermines the real warning system
- Agree if the report is verified against radar, since the label would then be accurate
- Agree, since platform immunity covers however user content is displayed
- Refuse, but only because the user is not a trained spotter
Hint
Two separate reasons point the same way, and neither depends on whether the report is true.
Answer
Refuse. It would be the platform developing its own content and asserting authority it does not have, and it undermines the real warning system
Both reasons hold regardless of whether the tornado is real. Labeling it official is the platform speaking rather than hosting, which is where its protection is weakest, and a competing unofficial warning damages a system that runs on trust. Radar corroboration raises confidence in the observation; it does not confer authority nobody has.