Atlanta: notable disagreement by day 3
Four forecasts from the 16 Sep 12Z run: ECMWF's learned model (AIFS), its physics model (HRES), Google DeepMind's WeatherNext 2, and the ECMWF ensemble mean, with the ensemble's 10–90% range shaded behind them.
Driven by pressure. 50 means the models disagree as much as the ensemble expects.
Disagreement by day
How it's measuredDay number after the run. Hover a chip for the date and the variable behind it.
2 m temperature, every model
Hover or tap the chart to read each model at that hour. The grey band is the range the ensemble puts 80% of its members in.
Day by day
Each model's high and low for the 24 hours ending at the time shown, °C. Δ is how much that model's high moved since its previous run, twelve hours earlier.
| Day | DI | AIFS | HRES | WN2 | ENS mean | ENS range | Spread of highs |
|---|---|---|---|---|---|---|---|
| Day 1to Thu 17 12Z | 16temperature | 30° 19°Δ 0 | 31° 20°Δ 0 | 29° 19°Δ 0 | 30° 20°Δ -1 | 29–32° | 2° |
| Day 2to Fri 18 12Z | 33temperature | 31° 21°Δ 0 | 32° 23°Δ 0 | 30° 21°Δ 0 | 32° 23°Δ 0 | 31–32° | 2° |
| Day 3to Sat 19 12Z | 45temperature | 33° 22°Δ -1 | 35° 24°Δ 0 | 32° 22°Δ -1 | 35° 24°Δ 0 | 34–36° | 3° |
| Day 4to Sun 20 12Z | 25temperature | 33° 22°Δ +1 | 35° 22°Δ +1 | 31° 22°Δ -1 | 34° 23°Δ 0 | 32–35° | 4° |
| Day 5to Mon 21 12Z | 28pressure | 30° 22°Δ +1 | 32° 22°Δ +2 | 29° 22°Δ -1 | 32° 22°Δ 0 | 29–34° | 3° |
| Day 6to Tue 22 12Z | 30pressure | 31° 21°Δ +1 | 33° 21°Δ +1 | 30° 21°Δ -1 | 32° 22°Δ 0 | 30–34° | 3° |
| Day 7to Wed 23 12Z | 26pressure | 29° 22°Δ +2 | 31° 21°Δ -1 | 27° 20°Δ 0 | 30° 22°Δ -1 | 27–32° | 4° |
| Day 8to Thu 24 12Z | 38pressure | 28° 21°Δ +1 | 29° 19°Δ 0 | 24° 18°Δ 0 | 28° 20°Δ 0 | 24–31° | 5° |
| Day 9to Fri 25 12Z | 36temperature | 27° 20°Δ +2 | 27° 14°Δ 0 | 24° 16°Δ 0 | 27° 19°Δ 0 | 24–30° | 3° |
| Day 10to Sat 26 12Z | 35temperature | 29° 20°Δ +3 | 26° 17°Δ -3 | 24° 16°Δ -1 | 28° 19°Δ +1 | 24–31° | 5° |
Open this place on the map
Values are what Forecast Euro's ingest sampled from each model's grid at this city, rounded to whole degrees at source. This page compares models; it is not a forecast to plan by.