Region Lower 48
United States
Europe
The readings under the map are for the whole map, not only the part shown.
GEM · Run 12Z 4 Oct · +6 h · Valid Sun 18Z 4 Oct
Wettest 84 mm, 45 km NW of Panama City, Florida · to Sun 18Z
Wettest 121 mm near Palatka, Florida · to Mon 00Z
Wettest 132 mm near Mobile, Alabama · to Mon 06Z
Wettest 174 mm, 45 km WSW of Panama City, Florida · to Mon 12Z
Wettest 174 mm, 45 km WSW of Panama City, Florida · to Mon 18Z
Wettest 175 mm, 45 km WSW of Panama City, Florida · to Tue 00Z
Wettest 175 mm, 45 km WSW of Panama City, Florida · to Tue 06Z
Wettest 176 mm, 45 km WSW of Panama City, Florida · to Tue 12Z
Wettest 180 mm, 45 km WSW of Panama City, Florida · to Tue 18Z
Wettest 253 mm, 85 km NE of Tuxpam, Mexico · to Wed 00Z
Wettest 264 mm, 85 km NE of Tuxpam, Mexico · to Wed 06Z
Wettest 282 mm, 85 km NE of Tuxpam, Mexico · to Wed 12Z
Wettest 298 mm, 85 km NE of Tuxpam, Mexico · to Wed 18Z
Wettest 315 mm, 85 km NE of Tuxpam, Mexico · to Thu 00Z
Wettest 326 mm, 85 km NE of Tuxpam, Mexico · to Thu 06Z
Wettest 342 mm, 85 km NE of Tuxpam, Mexico · to Thu 12Z
Wettest 363 mm, 85 km NE of Tuxpam, Mexico · to Thu 18Z
Wettest 382 mm, 85 km NE of Tuxpam, Mexico · to Fri 00Z
Wettest 388 mm, 85 km NE of Tuxpam, Mexico · to Fri 06Z
Wettest 407 mm, 85 km NE of Tuxpam, Mexico · to Fri 12Z
Wettest 420 mm, 85 km NE of Tuxpam, Mexico · to Fri 18Z
Wettest 422 mm, 85 km NE of Tuxpam, Mexico · to Sat 00Z
Wettest 426 mm, 85 km NE of Tuxpam, Mexico · to Sat 06Z
Wettest 428 mm, 85 km NE of Tuxpam, Mexico · to Sat 12Z
Wettest 428 mm, 85 km NE of Tuxpam, Mexico · to Sat 18Z
Wettest 428 mm, 85 km NE of Tuxpam, Mexico · to Sun 00Z
Wettest 428 mm, 85 km NE of Tuxpam, Mexico · to Sun 06Z
Wettest 428 mm, 85 km NE of Tuxpam, Mexico · to Sun 12Z
Wettest 428 mm, 85 km NE of Tuxpam, Mexico · to Sun 18Z
Wettest 428 mm, 85 km NE of Tuxpam, Mexico · to Mon 00Z
Wettest 428 mm, 85 km NE of Tuxpam, Mexico · to Mon 06Z
Wettest 428 mm, 85 km NE of Tuxpam, Mexico · to Mon 12Z
Wettest 428 mm, 85 km NE of Tuxpam, Mexico · to Mon 18Z
Wettest 428 mm, 85 km NE of Tuxpam, Mexico · to Tue 00Z
Wettest 428 mm, 85 km NE of Tuxpam, Mexico · to Tue 06Z
Wettest 428 mm, 100 km NE of Tuxpam, Mexico · to Tue 12Z
Wettest 430 mm, 100 km NE of Tuxpam, Mexico · to Tue 18Z
Wettest 430 mm, 100 km NE of Tuxpam, Mexico · to Wed 00Z
Wettest 430 mm, 100 km NE of Tuxpam, Mexico · to Wed 06Z
Wettest 430 mm, 100 km NE of Tuxpam, Mexico · to Wed 12Z
One GEM run, issued 12Z 4 Oct — played forward 6 hours at a time, from 6 to 240 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 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. 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
- 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.