The Forecast Post is the newspaper of the Forecast Network — 45 state and metro sites, a shared point API, a continuously running model and imagery pipeline, and a permanent record of how the forecasts turned out. The Post's job is to read all of that as a running chronicle rather than as a set of separate dashboards.

The unit of that chronicle is the milepost. The network's visual language is the Interstate guide sign, and the milepost is the one piece of that furniture nobody had claimed: a small green marker, a number, nothing else. It is not a headline or a label — it is a statement of position on a road that keeps going. Each entry here gets a number issued once and never reissued. That number is the permalink.

A correction never overwrites a milepost. It lays the next one and points back; the corrected entry is left exactly as filed and gains a link forward. A chronicle that edits its own past is not a record of anything.

Most of what makes weather coverage untrustworthy is a matter of style rather than science: a number with nothing beside it, a superlative with no period of record, a probability phrased to sound like a certainty. So this paper has a stated style, and it is enforced in the build rather than left to the writer's discipline.

• A number never travels alone. Every published figure carries at least one of: the normal it is measured against, its rank within a stated period of record, or the denominator it is drawn from. A claim with a value and none of the three fails the build.
• A rank states its period. "Third-warmest" is not a fact until it says third-warmest since when.
• A forecast carries its spread. A ten-degree revision inside a twenty-degree spread is the guidance converging; the same revision inside a five-degree spread is the guidance having been wrong. Those are different stories and are not reported as the same one.
• Scales are not mixed. A county-area value is not compared against a statewide average or a single station's record book, even when doing so would make the number sound larger.
• Probabilities are given as frequencies where a frequency exists — "four of the last fifty Septembers" rather than a bare percentage.
• A data defect is not a story. The verification desk separates a forecast that was wrong from a number that was broken, and publishes the first while logging the second.

The front page is computed and then edited. A set of detectors reads the network's own data on a schedule and raises candidates, each asking a question whose answer is usually nothing — which is what makes it worth printing on the days it is not. Every candidate arrives with its provenance attached and is style-checked before it can be filed.

Desk	What it watches
The Record	Where today sits in the period of record.
The Ledger	What was forecast, what happened, and the difference.
Revisions	Forecasts that moved, and by how much.
Disagreement	Where the guidance does not agree with itself.
Tropics	The basins, their systems, and their obituaries.
Winter	Snow, ice, and the cold season's firsts and lasts.
Hazards	Warnings, weighted by how unusual they are where issued.
The Almanac	On this date, and the long view.
Obituaries	Storms that died, and what they were forecast to be.
Markets	Degree days, crops, energy, and the weather in the line.
Letters	Readers' questions, answered with the data.
Notebook	The editor, at length.

Every forecast this network publishes for a station with an hourly report is compared against that report once the valid time has passed, and the residual is written down permanently. The upstream history store is a rolling window — a forecast issued today is gone in about eleven days whether or not anything ever compared it to the weather — so the grids expire and the residuals do not.

That ledger is published whether or not the numbers are flattering, and the busts are not a penance feature: they are the most interesting thing in the file. The Ledger desk carries it.

Everything here has a structured edition — an API, JSON Feed, RSS, Atom and llms.txt — and the claims are fields rather than prose. If a model or an agent is going to summarise this paper, it should be able to cite the normal, the rank and the period instead of inventing them.

Most mileposts are free. Some carry writing first published to Weather Trader for paid subscribers. For those, the Post publishes the headline, the standfirst, the dateline, the claims and the provenance — and a teaser. Never the body, at any endpoint: paid bodies are held in private object storage that refuses anonymous reads, the web server is separately configured to refuse to proxy them, and the build fails if a paid entry is carrying a body at all.