Region Mid-Atlantic
The readings under the map are for the whole map, not only the part shown.
Surface pressure (hPa) and instantaneous precip rate (mm/h)
GFS · Run 06Z 1 Oct · +0 h · Valid Thu 06Z 1 Oct
Surface pressure (hPa) and instantaneous precip rate (mm/h)
Heaviest rate 35.06 mm/h, near 23.5N 106.5W · unshaded ground is where the model has under 0.25 mm/h falling
Heaviest rate 42.17 mm/h, near 23.5N 107.0W · unshaded ground is where the model has under 0.25 mm/h falling
Heaviest rate 23.6 mm/h, near 35.0N 95.5W · unshaded ground is where the model has under 0.25 mm/h falling
Heaviest rate 43.52 mm/h, near 31.25N 96.5W · unshaded ground is where the model has under 0.25 mm/h falling
Heaviest rate 41.22 mm/h, near 30.5N 97.75W · unshaded ground is where the model has under 0.25 mm/h falling
Heaviest rate 43.79 mm/h, near 27.25N 100.0W · unshaded ground is where the model has under 0.25 mm/h falling
Heaviest rate 10.85 mm/h, near 20.0N 108.75W · unshaded ground is where the model has under 0.25 mm/h falling
Heaviest rate 31.83 mm/h, near 20.25N 90.5W · unshaded ground is where the model has under 0.25 mm/h falling
Heaviest rate 38.85 mm/h, near 20.25N 111.0W · unshaded ground is where the model has under 0.25 mm/h falling
Heaviest rate 30.78 mm/h, near 20.25N 111.5W · unshaded ground is where the model has under 0.25 mm/h falling
Heaviest rate 29.23 mm/h, near 20.25N 112.0W · unshaded ground is where the model has under 0.25 mm/h falling
Heaviest rate 38.58 mm/h, near 20.0N 112.5W · unshaded ground is where the model has under 0.25 mm/h falling
Heaviest rate 38.8 mm/h, near 20.0N 113.0W · unshaded ground is where the model has under 0.25 mm/h falling
Heaviest rate 23.26 mm/h, near 30.25N 89.25W · unshaded ground is where the model has under 0.25 mm/h falling
Heaviest rate 28.07 mm/h, near 30.75N 89.0W · unshaded ground is where the model has under 0.25 mm/h falling
Heaviest rate 18.58 mm/h, near 20.5N 115.25W · unshaded ground is where the model has under 0.25 mm/h falling
Heaviest rate 24.38 mm/h, near 20.25N 115.5W · unshaded ground is where the model has under 0.25 mm/h falling
Heaviest rate 21.44 mm/h, near 28.25N 95.5W · unshaded ground is where the model has under 0.25 mm/h falling
Heaviest rate 27.48 mm/h, near 30.5N 86.75W · unshaded ground is where the model has under 0.25 mm/h falling
Heaviest rate 11.7 mm/h, near 33.75N 73.0W · unshaded ground is where the model has under 0.25 mm/h falling
Heaviest rate 29.03 mm/h, near 21.0N 97.0W · unshaded ground is where the model has under 0.25 mm/h falling
One GFS run — issued 06Z 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.