Region Midwest
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 00Z 1 Oct · +0 h · Valid Thu 00Z 1 Oct
Surface pressure (hPa) and instantaneous precip rate (in/h)
Heaviest rate 1.038 in/h, near 40.75N 97.75W · unshaded ground is where the model has under 0.01 in/h falling
Heaviest rate 1.207 in/h, near 23.5N 106.25W · unshaded ground is where the model has under 0.01 in/h falling
Heaviest rate 1.284 in/h, near 23.5N 107.25W · unshaded ground is where the model has under 0.01 in/h falling
Heaviest rate 1.117 in/h, near 34.0N 96.0W · unshaded ground is where the model has under 0.01 in/h falling
Heaviest rate 1.752 in/h, near 28.5N 98.25W · unshaded ground is where the model has under 0.01 in/h falling
Heaviest rate 1.662 in/h, near 30.5N 98.0W · unshaded ground is where the model has under 0.01 in/h falling
Heaviest rate 1.352 in/h, near 26.5N 99.25W · unshaded ground is where the model has under 0.01 in/h falling
Heaviest rate 0.573 in/h, near 37.0N 89.5W · unshaded ground is where the model has under 0.01 in/h falling
Heaviest rate 1.184 in/h, near 20.75N 90.5W · unshaded ground is where the model has under 0.01 in/h falling
Heaviest rate 1.398 in/h, near 20.0N 111.0W · unshaded ground is where the model has under 0.01 in/h falling
Heaviest rate 1.759 in/h, near 20.0N 111.5W · unshaded ground is where the model has under 0.01 in/h falling
Heaviest rate 1.144 in/h, near 20.0N 112.25W · unshaded ground is where the model has under 0.01 in/h falling
Heaviest rate 0.906 in/h, near 20.0N 113.0W · unshaded ground is where the model has under 0.01 in/h falling
Heaviest rate 1.221 in/h, near 31.0N 89.25W · unshaded ground is where the model has under 0.01 in/h falling
Heaviest rate 0.804 in/h, near 20.5N 114.5W · unshaded ground is where the model has under 0.01 in/h falling
Heaviest rate 1.184 in/h, near 20.0N 114.5W · unshaded ground is where the model has under 0.01 in/h falling
Heaviest rate 0.738 in/h, near 30.75N 87.0W · unshaded ground is where the model has under 0.01 in/h falling
Heaviest rate 1.055 in/h, near 31.25N 86.0W · unshaded ground is where the model has under 0.01 in/h falling
Heaviest rate 1.313 in/h, near 34.5N 74.0W · unshaded ground is where the model has under 0.01 in/h falling
Heaviest rate 0.931 in/h, near 30.75N 85.75W · unshaded ground is where the model has under 0.01 in/h falling
Heaviest rate 0.792 in/h, near 34.0N 70.25W · unshaded ground is where the model has under 0.01 in/h falling
One GFS run — issued 00Z 1 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.
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.