Region Northeast
The readings under the map are for the whole map, not only the part shown.
GFS · Run 18Z 30 Sep · +0 h · Valid Wed 18Z 30 Sep
Nothing on the map has reached 0.25 mm yet · heaviest rate 18.62 mm/h at Wed 18Z
Wettest so far 73 mm, 75 km NNE of Hays, Kansas · heaviest rate 32.65 mm/h at Thu 00Z
Wettest so far 113 mm, 35 km NW of Lincoln, Nebraska · heaviest rate 36.19 mm/h at Thu 06Z
Wettest so far 114 mm, 35 km NW of Lincoln, Nebraska · heaviest rate 24.68 mm/h at Thu 12Z
Wettest so far 134 mm, 50 km NE of Sherman, Texas · heaviest rate 22.19 mm/h at Thu 18Z
Wettest so far 142 mm, 50 km NE of Sherman, Texas · heaviest rate 40.44 mm/h at Fri 00Z
Wettest so far 150 mm, 65 km NE of Waco, Texas · heaviest rate 36.65 mm/h at Fri 06Z
Wettest so far 177 mm near Austin, Texas · heaviest rate 53.93 mm/h at Fri 12Z
Wettest so far 205 mm, 90 km NNW of Sabinas Hidalgo, Mexico · heaviest rate 12.4 mm/h at Fri 18Z
Wettest so far 217 mm, 90 km NNW of Sabinas Hidalgo, Mexico · heaviest rate 20.93 mm/h at Sat 00Z
Wettest so far 237 mm at 20.0N 111.0W · heaviest rate 27.15 mm/h at Sat 06Z
Wettest so far 249 mm at 20.0N 111.0W · heaviest rate 16.6 mm/h at Sat 12Z
Wettest so far 254 mm at 20.0N 111.0W · heaviest rate 32.93 mm/h at Sat 18Z
Wettest so far 256 mm at 20.0N 111.0W · heaviest rate 18.35 mm/h at Sun 00Z
Wettest so far 256 mm at 20.0N 111.0W · heaviest rate 18.86 mm/h at Sun 06Z
Wettest so far 258 mm at 20.0N 111.0W · heaviest rate 32.13 mm/h at Sun 12Z
Wettest so far 260 mm at 20.0N 111.0W · heaviest rate 26.97 mm/h at Sun 18Z
Wettest so far 262 mm at 20.0N 111.0W · heaviest rate 26.92 mm/h at Mon 00Z
Wettest so far 262 mm at 20.0N 111.0W · heaviest rate 21.88 mm/h at Mon 06Z
Wettest so far 262 mm at 20.0N 111.0W · heaviest rate 48.37 mm/h at Mon 12Z
Wettest so far 262 mm at 20.0N 111.0W · heaviest rate 24.63 mm/h at Mon 18Z
One GFS run, issued 18Z 30 Sep — played forward 6 hours at a time, from its analysis to 120 hours out.
Methodology
Two of this site's films laid one over the other. Underneath is the Run total: everything this run puts down from its start to each frame, on Tropical Tidbits' scale. On top is the pressure Time lapse: the precipitation falling at that frame's time, on the radar scale, and the sea-level pressure at that time in 4 hPa isobars. So the rate moves on as the film plays and leaves its total behind it. The first frame is the analysis, where the run has put nothing down yet.
The total is a window and the rate and the pressure are instants, all read at the frame's valid time: the total runs from the start of the run to that time. Liquid-equivalent: snow counts as the water it melts to. GFS and ECMWF only, the two models here that publish an instantaneous rate.
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. Uncorrected model output.
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.