New York's forecast for Tuesday has moved 7°F warmer
49°F in the 20261111T00:00Z run, 56°F in the 20261112T18:00Z — the 3rd-largest revision of the 5 cities on the roster that moved at all. The current run's 10th-to-90th percentile spread at that hour is 7°F.
RevisionsFriday, November 13, 2026New York, New York
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Milepost 1679
Successive cycles do not merely refresh a forecast; they leave a trail. For Tuesday, November 17 at 21Z in New York, that trail runs from 49.2°F in the 20261111T00:00Z cycle to 55.9°F in the 20261112T18:00Z — a move of +6.7°F across 8 runs.
The change is about half the run's 10th-to-90th percentile spread, so the earlier forecast is still inside the current range of outcomes.
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 21Z api.weather.city /v1/history (nbm-qmd) |
6.7 °F | normal 0.0 °F · 3 of 5 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
7 °F | normal 6.7 °F current run |
- Milepost
- 1679 · laid 2026-11-13T04:25:28Z
- Model
- nbm-qmd · cycle 20261112T18:00Z
- Desk
- revision v1
- Method
- the same valid time read from successive synoptic cycles; the move is last run minus first run
- Stores
- https://api.weather.city/v1/history
- Tagged
- I-500 Daily Weather · New York, New York (40.713, -74.006) · by rule, at build
- Digest
- f2cfe72653f15d5312e10ecad66912ef5e84dae751a5ab0e12b6288f3c057466