New York, New York Revisions
MILEPOST 1075
New York's forecast for Tuesday has moved 9°F warmer
59°F in the 20260911T06:00Z run, 68°F in the 20260913T06:00Z — the 3rd-largest revision of the 9 cities on the roster that moved at all. The current run's 10th-to-90th percentile spread at that hour is 18°F.
Successive cycles do not merely refresh a forecast; they leave a trail. For Tuesday, September 22 at 12Z in New York, that trail runs from 59.2°F in the 20260911T06:00Z cycle to 67.7°F in the 20260913T06:00Z — a move of +8.5°F across 8 runs.
The change sits well inside the run's own spread, which is the guidance converging rather than reversing.
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 12Z api.weather.city /v1/history (nbm-qmd) |
8.5 °F | normal 0.0 °F · 3 of 9 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
18 °F | normal 8.5 °F current run |
- Milepost
- 1075 · laid 2026-09-13T17:25:12Z
- Model
- nbm-qmd · cycle 20260913T06:00Z
- 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
- db4b7d270008f8ef728b8116b3b49f0b8232e11b814b48f5b01e4037b8b9d167
- Machine
- JSON