Region Lower 48
United States
Europe
The readings under the map are for the whole map, not only the part shown.
ECMWF · Run 06Z 4 Oct · +6 h · Valid Sun 12Z 4 Oct
Wettest 63 mm, 90 km ENE of Aldama, Mexico · to Sun 12Z
Wettest 112 mm at 20.0N 113.0W · to Sun 18Z
Wettest 187 mm at 20.0N 114.0W · to Mon 00Z
Wettest 231 mm at 20.0N 114.0W · to Mon 06Z
Wettest 237 mm at 20.0N 114.0W · to Mon 12Z
Wettest 264 mm at 20.0N 115.0W · to Mon 18Z
Wettest 266 mm at 20.0N 115.0W · to Tue 00Z
Wettest 267 mm at 20.0N 115.0W · to Tue 06Z
Wettest 287 mm at 20.0N 118.5W · to Tue 12Z
Wettest 333 mm at 20.0N 118.5W · to Tue 18Z
Wettest 336 mm at 20.25N 118.5W · to Wed 00Z
Wettest 337 mm at 20.25N 118.5W · to Wed 06Z
Wettest 337 mm at 20.0N 118.5W · to Wed 12Z
Wettest 338 mm at 20.0N 118.5W · to Wed 18Z
Wettest 338 mm at 20.25N 118.5W · to Thu 00Z
Wettest 338 mm at 20.25N 118.5W · to Thu 06Z
Wettest 338 mm at 20.25N 118.5W · to Thu 12Z
Wettest 338 mm at 20.25N 118.5W · to Thu 18Z
Wettest 338 mm at 20.25N 118.5W · to Fri 00Z
Wettest 338 mm at 20.25N 118.5W · to Fri 06Z
Wettest 338 mm at 20.25N 118.5W · to Fri 12Z
Wettest 338 mm at 20.25N 118.5W · to Fri 18Z
Wettest 338 mm at 20.25N 118.5W · to Sat 00Z
Wettest 338 mm at 20.25N 118.5W · to Sat 06Z
One ECMWF run, issued 06Z 4 Oct — played forward 6 hours at a time, from 6 to 144 hours out.
Methodology
Each frame is everything this run puts down from its start to that hour, so the map fills in as the film plays and its last frame is the run's whole total. 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 144 hours. ECMWF's 00Z and 12Z runs forecast out to 360 hours, its 06Z and 18Z runs to 144. 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: IFS, 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.