Region Lower 48
United States
Europe
The readings under the map are for the whole map, not only the part shown.
Surface pressure (hPa) and instantaneous precip rate (mm/h)
ECMWF · Run 06Z 2 Oct · +0 h · Valid Fri 06Z 2 Oct
Surface pressure (hPa) and instantaneous precip rate (mm/h)
Heaviest rate 26.86 mm/h, near 25.25N 100.0W · unshaded ground is where the model has under 0.25 mm/h falling
Heaviest rate 21.51 mm/h, near 24.75N 99.75W · unshaded ground is where the model has under 0.25 mm/h falling
Heaviest rate 14.64 mm/h, near 31.75N 88.0W · unshaded ground is where the model has under 0.25 mm/h falling
Heaviest rate 18.64 mm/h, near 25.5N 100.25W · unshaded ground is where the model has under 0.25 mm/h falling
Heaviest rate 13.93 mm/h, near 21.25N 112.25W · unshaded ground is where the model has under 0.25 mm/h falling
Heaviest rate 15.14 mm/h, near 21.5N 112.75W · unshaded ground is where the model has under 0.25 mm/h falling
Heaviest rate 20.94 mm/h, near 20.0N 111.5W · unshaded ground is where the model has under 0.25 mm/h falling
Heaviest rate 15.04 mm/h, near 20.0N 113.0W · unshaded ground is where the model has under 0.25 mm/h falling
Heaviest rate 35.2 mm/h, near 20.0N 113.5W · unshaded ground is where the model has under 0.25 mm/h falling
Heaviest rate 25.33 mm/h, near 20.0N 114.0W · unshaded ground is where the model has under 0.25 mm/h falling
Heaviest rate 29.96 mm/h, near 31.75N 86.0W · unshaded ground is where the model has under 0.25 mm/h falling
Heaviest rate 40.34 mm/h, near 20.0N 115.75W · unshaded ground is where the model has under 0.25 mm/h falling
Heaviest rate 39.94 mm/h, near 30.75N 83.5W · unshaded ground is where the model has under 0.25 mm/h falling
Heaviest rate 29.41 mm/h, near 36.25N 72.0W · unshaded ground is where the model has under 0.25 mm/h falling
Heaviest rate 23.54 mm/h, near 30.75N 82.0W · unshaded ground is where the model has under 0.25 mm/h falling
Heaviest rate 33.34 mm/h, near 31.0N 80.75W · unshaded ground is where the model has under 0.25 mm/h falling
Heaviest rate 23.98 mm/h, near 30.75N 80.0W · unshaded ground is where the model has under 0.25 mm/h falling
Heaviest rate 37.15 mm/h, near 31.25N 79.5W · unshaded ground is where the model has under 0.25 mm/h falling
Heaviest rate 19.0 mm/h, near 20.0N 120.75W · unshaded ground is where the model has under 0.25 mm/h falling
Heaviest rate 24.44 mm/h, near 20.0N 122.75W · unshaded ground is where the model has under 0.25 mm/h falling
Heaviest rate 18.81 mm/h, near 31.0N 77.5W · unshaded ground is where the model has under 0.25 mm/h falling
One ECMWF run — issued 06Z 2 Oct — played forward 6 hours at a time, from its analysis to 120 hours out.
Methodology
Step forward and the pressure pattern moves, and the precipitation under it moves with it: that motion is the weather this run forecasts, not the forecast changing — Forecast Evolution is the film for that. Same chart grammar as the surface analysis: the same reduction, the same 2 hPa interval, the same frame; only the forecast hour varies. Six-hourly to 120 hours. ECMWF's 06Z run forecasts out to 144 hours; this film stops at 120. The frames past the one shown load on demand.
This map is drawn from model output we store ourselves, not from anyone's picture of it, and is based on data and products of the European Centre for Medium-Range Weather Forecasts (ECMWF). The per-city read of the same day — which cities the models are fighting about, and what the discussion makes of it — is on the national page. Every model's full forecast for any of these cities, or anywhere else, is in the beta: request an invite; it's free during the beta.
Sources and licences
- ECMWF: IFS, from ECMWF's open data. This service is based on data and products of the European Centre for Medium-Range Weather Forecasts (ECMWF). Source: www.ecmwf.int. This ECMWF data is published under a Creative Commons Attribution 4.0 International (CC BY 4.0). ECMWF does not accept any liability whatsoever for any error or omission in the data, their availability, or for any loss or damage arising from their use.
What we change: each field is cropped to the frame these maps share when we download it, and each map then smooths, contours, differences or ranks those numbers as its Methodology says. These are our maps of the providers' numbers, not their products, and none of them has reviewed or endorsed this site.
Coastlines, borders, lakes and place names: Natural Earth, public domain.