Region Northwest
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 (in/h)
GFS · Run 12Z 2 Oct · +0 h · Valid Fri 12Z 2 Oct
Surface pressure (hPa) and instantaneous precip rate (in/h)
Heaviest rate 0.703 in/h, near 26.0N 100.75W · unshaded ground is where the model has under 0.01 in/h falling
Heaviest rate 0.304 in/h, near 36.0N 90.5W · unshaded ground is where the model has under 0.01 in/h falling
Heaviest rate 1.404 in/h, near 26.25N 88.75W · unshaded ground is where the model has under 0.01 in/h falling
Heaviest rate 0.39 in/h, near 38.5N 79.25W · unshaded ground is where the model has under 0.01 in/h falling
Heaviest rate 1.286 in/h, near 29.0N 90.0W · unshaded ground is where the model has under 0.01 in/h falling
Heaviest rate 1.339 in/h, near 30.75N 90.0W · unshaded ground is where the model has under 0.01 in/h falling
Heaviest rate 1.496 in/h, near 30.5N 88.0W · unshaded ground is where the model has under 0.01 in/h falling
Heaviest rate 0.974 in/h, near 30.75N 89.25W · unshaded ground is where the model has under 0.01 in/h falling
Heaviest rate 1.864 in/h, near 31.75N 88.5W · unshaded ground is where the model has under 0.01 in/h falling
Heaviest rate 0.663 in/h, near 31.5N 86.5W · unshaded ground is where the model has under 0.01 in/h falling
Heaviest rate 1.129 in/h, near 21.75N 97.5W · unshaded ground is where the model has under 0.01 in/h falling
Heaviest rate 1.081 in/h, near 20.0N 114.5W · unshaded ground is where the model has under 0.01 in/h falling
Heaviest rate 1.405 in/h, near 20.5N 115.0W · unshaded ground is where the model has under 0.01 in/h falling
Heaviest rate 0.929 in/h, near 32.5N 82.5W · unshaded ground is where the model has under 0.01 in/h falling
Heaviest rate 0.741 in/h, near 20.5N 118.25W · unshaded ground is where the model has under 0.01 in/h falling
Heaviest rate 0.845 in/h, near 20.25N 119.0W · unshaded ground is where the model has under 0.01 in/h falling
Heaviest rate 1.142 in/h, near 20.0N 117.75W · unshaded ground is where the model has under 0.01 in/h falling
Heaviest rate 1.405 in/h, near 20.5N 120.5W · unshaded ground is where the model has under 0.01 in/h falling
Heaviest rate 0.952 in/h, near 20.25N 120.0W · unshaded ground is where the model has under 0.01 in/h falling
Heaviest rate 1.15 in/h, near 30.5N 78.0W · unshaded ground is where the model has under 0.01 in/h falling
Heaviest rate 2.129 in/h, near 31.0N 80.25W · unshaded ground is where the model has under 0.01 in/h falling
One GFS run — issued 12Z 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 4 hPa interval, the same frame; only the forecast hour varies. Six-hourly to 120 hours. GFS forecasts out to 384 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 NOAA. 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
- NOAA: GFS, from NOAA's NOMADS server. US government data, not subject to copyright (NOAA/NWS terms of 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.