Region Lower 48
The readings under the map are for the whole map, not only the part shown.
GEM · Run 00Z 1 Oct · +24 h · Valid Fri 00Z 2 Oct
Wettest 162 mm, 80 km NE of La Cruz, Mexico · Thu 00Z to Fri 00Z
Wettest 286 mm, 35 km W of Beeville, Texas · Thu 06Z to Fri 06Z
Wettest 305 mm, 35 km W of Beeville, Texas · Thu 12Z to Fri 12Z
Wettest 305 mm, 35 km W of Beeville, Texas · Thu 18Z to Fri 18Z
Wettest 283 mm, 35 km W of Beeville, Texas · Fri 00Z to Sat 00Z
Wettest 184 mm near Palatka, Florida · Fri 06Z to Sat 06Z
Wettest 191 mm near Palatka, Florida · Fri 12Z to Sat 12Z
Wettest 192 mm near Palatka, Florida · Fri 18Z to Sat 18Z
Wettest 184 mm, 80 km NNE of Mobile, Alabama · Sat 00Z to Sun 00Z
Wettest 185 mm, 80 km NNE of Mobile, Alabama · Sat 06Z to Sun 06Z
Wettest 223 mm, 60 km ESE of Galveston, Texas · Sat 12Z to Sun 12Z
Wettest 239 mm, 60 km ESE of Galveston, Texas · Sat 18Z to Sun 18Z
Wettest 241 mm, 60 km ESE of Galveston, Texas · Sun 00Z to Mon 00Z
Wettest 192 mm, 60 km ESE of Galveston, Texas · Sun 06Z to Mon 06Z
Wettest 163 mm, 75 km NNE of Nautla, Mexico · Sun 12Z to Mon 12Z
Wettest 276 mm, 75 km NNE of Nautla, Mexico · Sun 18Z to Mon 18Z
Wettest 287 mm, 75 km NNE of Nautla, Mexico · Mon 00Z to Tue 00Z
Wettest 275 mm, 75 km NNE of Nautla, Mexico · Mon 06Z to Tue 06Z
Wettest 167 mm, 85 km E of Tuxpam, Mexico · Mon 12Z to Tue 12Z
Wettest 119 mm, 70 km SW of Cozumel, Mexico · Mon 18Z to Tue 18Z
Wettest 113 mm near Harlingen, Texas · Tue 00Z to Wed 00Z
Wettest 110 mm near Harlingen, Texas · Tue 06Z to Wed 06Z
Wettest 94 mm, 35 km E of Port Charlotte, Florida · Tue 12Z to Wed 12Z
Wettest 95 mm, 35 km E of Port Charlotte, Florida · Tue 18Z to Wed 18Z
Wettest 131 mm, 65 km NNE of Bella Bella, British Columbia · Wed 00Z to Thu 00Z
Wettest 160 mm, 65 km NNE of Bella Bella, British Columbia · Wed 06Z to Thu 06Z
Wettest 158 mm, 65 km NNE of Bella Bella, British Columbia · Wed 12Z to Thu 12Z
Wettest 127 mm, 75 km NNE of Nautla, Mexico · Wed 18Z to Thu 18Z
Wettest 165 mm, 75 km NNE of Nautla, Mexico · Thu 00Z to Fri 00Z
Wettest 172 mm, 70 km E of Tuxpam, Mexico · Thu 06Z to Fri 06Z
Wettest 174 mm, 70 km E of Tuxpam, Mexico · Thu 12Z to Fri 12Z
Wettest 134 mm, 130 km ENE of Ciudad Madero, Mexico · Thu 18Z to Fri 18Z
Wettest 152 mm, 120 km NE of Ciudad Madero, Mexico · Fri 00Z to Sat 00Z
Wettest 163 mm, 175 km ENE of Aldama, Mexico · Fri 06Z to Sat 06Z
Wettest 278 mm at 24.45N 94.2W · Fri 12Z to Sat 12Z
Wettest 383 mm at 24.3N 94.2W · Fri 18Z to Sat 18Z
Wettest 358 mm at 24.3N 94.2W · Sat 00Z to Sun 00Z
One GEM run, issued 00Z 1 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. GEM forecasts out to 240 hours. 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 Environment and Climate Change Canada. 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
- Environment and Climate Change Canada: GEM, from the MSC Datamart. Data Source: Environment and Climate Change Canada, under its Data Services End-use Licence.
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.