New York, New York Revisions
MILEPOST 1104
New York's forecast for Tuesday has moved 8°F colder
74°F in the 20260914T00:00Z run, 67°F in the 20260915T18:00Z — the 3rd-largest revision of the 5 cities on the roster that moved at all.
Successive cycles do not merely refresh a forecast; they leave a trail. For Tuesday, September 22 at 18Z in New York, that trail runs from 74.4°F in the 20260914T00:00Z cycle to 66.8°F in the 20260915T18:00Z — a move of -7.7°F across 8 runs.
This run family does not publish percentiles at this valid time, so the change is reported without a spread to judge it against.
Model NBM-QMD, via api.weather.city /v1/history. Percentiles are the same run's own.
The numbers in this piece, with what they are measured against
| forecast revision for Tuesday at 18Z api.weather.city /v1/history (nbm-qmd) |
-7.7 °F | normal 0.0 °F · 3 of 5 8 synoptic cycles |
- Milepost
- 1104 · laid 2026-09-16T04:25:13Z
- Model
- nbm-qmd · cycle 20260915T18:00Z
- Desk
- revision v1
- Method
- the same valid time read from successive synoptic cycles; the move is last run minus first run
- Source
- https://api.weather.city/v1/history
- Digest
- 5f4a7e67254df9c010b4a01520b923e7d9f97b6bc6f5b397b151e85b14d3d20f
- Machine
- JSON