24-hour precipitation, played forward
Wettest 91 mm, 215 km ESE of Kitty Hawk, North Carolina · Thu 18Z to Fri 18Z
Wettest 88 mm, 215 km ESE of Kitty Hawk, North Carolina · Fri 00Z to Sat 00Z
Wettest 73 mm at 40.25N 66.25W · Fri 06Z to Sat 06Z
Wettest 134 mm at 20.0N 123.5W · Fri 12Z to Sat 12Z
Wettest 157 mm at 20.0N 123.5W · Fri 18Z to Sat 18Z
Wettest 138 mm at 20.0N 123.5W · Sat 00Z to Sun 00Z
Wettest 118 mm at 20.25N 123.5W · Sat 06Z to Sun 06Z
Wettest 109 mm at 20.0N 113.25W · Sat 12Z to Sun 12Z
Wettest 153 mm at 20.0N 113.25W · Sat 18Z to Sun 18Z
Wettest 154 mm at 20.0N 113.25W · Sun 00Z to Mon 00Z
Wettest 141 mm at 20.5N 113.5W · Sun 06Z to Mon 06Z
Wettest 134 mm at 22.0N 113.5W · Sun 12Z to Mon 12Z
Wettest 121 mm at 22.25N 113.5W · Sun 18Z to Mon 18Z
Wettest 109 mm, 125 km WSW of Ciudad Constitución, Mexico · Mon 00Z to Tue 00Z
Wettest 117 mm near Loreto, Mexico · Mon 06Z to Tue 06Z
Wettest 123 mm near Loreto, Mexico · Mon 12Z to Tue 12Z
Wettest 119 mm near Loreto, Mexico · Mon 18Z to Tue 18Z
Wettest 111 mm, 65 km NNE of Loreto, Mexico · Tue 00Z to Wed 00Z
Wettest 109 mm, 45 km ENE of Esperanza, Mexico · Tue 06Z to Wed 06Z
Wettest 100 mm, 80 km NE of Esperanza, Mexico · Tue 12Z to Wed 12Z
Wettest 54 mm, 110 km SW of Nuevo Casas Grandes, Mexico · Tue 18Z to Wed 18Z
Wettest 38 mm, 40 km ESE of Raton, New Mexico · Wed 00Z to Thu 00Z
Wettest 45 mm, 40 km NNE of Childress, Texas · Wed 06Z to Thu 06Z
Wettest 52 mm, 45 km E of Childress, Texas · Wed 12Z to Thu 12Z
Wettest 48 mm, 45 km NNW of Vernon, Texas · Wed 18Z to Thu 18Z
Wettest 45 mm, 60 km SE of Willmar, Minnesota · Thu 00Z to Fri 00Z
Wettest 41 mm, 60 km W of Minneapolis, Minnesota · Thu 06Z to Fri 06Z
Wettest 35 mm, 85 km S of Wawa, Ontario · Thu 12Z to Fri 12Z
Wettest 37 mm, 60 km NNW of Nuevo Laredo, Mexico · Thu 18Z to Fri 18Z
Wettest 35 mm, 60 km NNW of Nuevo Laredo, Mexico · Fri 00Z to Sat 00Z
Wettest 29 mm, 35 km NNE of Montemorelos, Mexico · Fri 06Z to Sat 06Z
Wettest 30 mm near Nashville, Tennessee · Fri 12Z to Sat 12Z
Wettest 39 mm near Murfreesboro, Tennessee · Fri 18Z to Sat 18Z
Wettest 48 mm, 30 km SE of Hydaburg, Alaska · Sat 00Z to Sun 00Z
Wettest 54 mm, 40 km S of Ketchikan, Alaska · Sat 06Z to Sun 06Z
Wettest 50 mm, 40 km S of Ketchikan, Alaska · Sat 12Z to Sun 12Z
Wettest 52 mm, 40 km SSE of Ketchikan, Alaska · Sat 18Z to Sun 18Z
One ECMWF AIFS run, issued 18Z 24 Sep — 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.
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.