Region Lower 48
United States
Europe
The readings under the map are for the whole map, not only the part shown.
ECMWF AIFS · Run 18Z 4 Oct · +24 h · Valid Mon 18Z 5 Oct
Wettest 140 mm at 20.0N 114.5W · Sun 18Z to Mon 18Z
Wettest 112 mm at 20.0N 114.75W · Mon 00Z to Tue 00Z
Wettest 110 mm at 20.25N 116.75W · Mon 06Z to Tue 06Z
Wettest 117 mm at 20.25N 117.5W · Mon 12Z to Tue 12Z
Wettest 125 mm at 20.5N 118.5W · Mon 18Z to Tue 18Z
Wettest 122 mm at 20.5N 118.75W · Tue 00Z to Wed 00Z
Wettest 113 mm at 20.5N 119.5W · Tue 06Z to Wed 06Z
Wettest 92 mm at 20.5N 119.75W · Tue 12Z to Wed 12Z
Wettest 90 mm at 32.0N 74.25W · Tue 18Z to Wed 18Z
Wettest 88 mm at 32.0N 74.0W · Wed 00Z to Thu 00Z
Wettest 78 mm at 32.0N 74.0W · Wed 06Z to Thu 06Z
Wettest 98 mm at 22.0N 92.5W · Wed 12Z to Thu 12Z
Wettest 106 mm, 220 km WNW of Progreso, Mexico · Wed 18Z to Thu 18Z
Wettest 120 mm, 140 km W of Progreso, Mexico · Thu 00Z to Fri 00Z
Wettest 133 mm, 125 km WNW of Progreso, Mexico · Thu 06Z to Fri 06Z
Wettest 148 mm, 100 km WNW of Progreso, Mexico · Thu 12Z to Fri 12Z
Wettest 169 mm, 80 km NW of Progreso, Mexico · Thu 18Z to Fri 18Z
Wettest 180 mm, 85 km NNW of Progreso, Mexico · Fri 00Z to Sat 00Z
Wettest 181 mm, 115 km NNW of Progreso, Mexico · Fri 06Z to Sat 06Z
Wettest 174 mm, 140 km NNW of Progreso, Mexico · Fri 12Z to Sat 12Z
Wettest 170 mm, 195 km N of Progreso, Mexico · Fri 18Z to Sat 18Z
Wettest 160 mm, 255 km NNW of Progreso, Mexico · Sat 00Z to Sun 00Z
Wettest 148 mm at 24.25N 90.25W · Sat 06Z to Sun 06Z
Wettest 123 mm at 24.5N 90.25W · Sat 12Z to Sun 12Z
Wettest 163 mm, 220 km WSW of Puerto Vallarta, Mexico · Sat 18Z to Sun 18Z
Wettest 190 mm, 210 km W of Puerto Vallarta, Mexico · Sun 00Z to Mon 00Z
Wettest 179 mm, 210 km W of Puerto Vallarta, Mexico · Sun 06Z to Mon 06Z
Wettest 151 mm, 185 km W of Puerto Vallarta, Mexico · Sun 12Z to Mon 12Z
Wettest 129 mm, 35 km ESE of Escuinapa, Mexico · Sun 18Z to Mon 18Z
Wettest 133 mm, 35 km ESE of Escuinapa, Mexico · Mon 00Z to Tue 00Z
Wettest 108 mm, 175 km SE of Wilmington, North Carolina · Mon 06Z to Tue 06Z
Wettest 86 mm at 31.25N 67.75W · Mon 12Z to Tue 12Z
Wettest 106 mm, 200 km SW of Hamilton, Bermuda · Mon 18Z to Tue 18Z
Wettest 119 mm, 125 km SSW of Hamilton, Bermuda · Tue 00Z to Wed 00Z
Wettest 115 mm, 90 km SSW of Hamilton, Bermuda · Tue 06Z to Wed 06Z
Wettest 91 mm, 90 km SSW of Hamilton, Bermuda · Tue 12Z to Wed 12Z
Wettest 56 mm, 65 km SSW of Hamilton, Bermuda · Tue 18Z to Wed 18Z
One ECMWF AIFS run, issued 18Z 4 Oct — played forward 6 hours at a time, from 24 to 240 hours out.
Methodology
Each frame is the precipitation this run puts down in the 24 hours to it — its total at that hour less its total 24 hours before — so the film starts at +24 h, the first frame with a whole day behind it. Liquid-equivalent: snow counts as the water it melts to.
The colours are Tropical Tidbits' scale, so a reader who knows theirs can read this one. Three of its steps are re-shaded: at 0.5 in, at 2 in — where, on theirs, a reader with protanopia sees the 1.75–2 in band and the 2–2.5 in band as one colour — and among the yellows above 12 in. Same hues; the lightness is re-spaced so every step is visible in every common form of colour-blindness.
Six-hourly to 240 hours. ECMWF AIFS forecasts out to 360 hours; this film stops at 240. 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 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: AIFS Single, 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.