Total precipitation, played forward
Wettest 3.24 in, 75 mi ENE of Nassau, The Bahamas · to Thu 06Z
Wettest 6.85 in, 75 mi ENE of Nassau, The Bahamas · to Thu 12Z
Wettest 7.55 in, 75 mi ENE of Nassau, The Bahamas · to Thu 18Z
Wettest 7.55 in, 75 mi ENE of Nassau, The Bahamas · to Fri 00Z
Wettest 7.56 in, 75 mi ENE of Nassau, The Bahamas · to Fri 06Z
Wettest 7.56 in, 75 mi ENE of Nassau, The Bahamas · to Fri 12Z
Wettest 7.59 in, 75 mi ENE of Nassau, The Bahamas · to Fri 18Z
Wettest 7.63 in, 75 mi ENE of Nassau, The Bahamas · to Sat 00Z
Wettest 7.76 in, 75 mi ENE of Nassau, The Bahamas · to Sat 06Z
Wettest 12.24 in at 20.1N 123.75W · to Sat 12Z
Wettest 12.99 in at 20.1N 123.75W · to Sat 18Z
Wettest 13.03 in at 20.1N 123.75W · to Sun 00Z
Wettest 13.69 in, 30 mi ESE of Nuevitas, Cuba · to Sun 06Z
Wettest 13.69 in, 30 mi ESE of Nuevitas, Cuba · to Sun 12Z
Wettest 13.71 in, 30 mi ESE of Nuevitas, Cuba · to Sun 18Z
Wettest 16.55 in, 30 mi ESE of Nuevitas, Cuba · to Mon 00Z
Wettest 18.31 in, 30 mi ESE of Nuevitas, Cuba · to Mon 06Z
Wettest 18.31 in, 30 mi ESE of Nuevitas, Cuba · to Mon 12Z
Wettest 18.31 in, 30 mi ESE of Nuevitas, Cuba · to Mon 18Z
Wettest 18.31 in, 30 mi ESE of Nuevitas, Cuba · to Tue 00Z
Wettest 18.34 in, 30 mi ESE of Nuevitas, Cuba · to Tue 06Z
Wettest 18.34 in, 30 mi ESE of Nuevitas, Cuba · to Tue 12Z
Wettest 18.35 in, 30 mi ESE of Nuevitas, Cuba · to Tue 18Z
Wettest 18.35 in, 30 mi ESE of Nuevitas, Cuba · to Wed 00Z
Wettest 18.35 in, 30 mi ESE of Nuevitas, Cuba · to Wed 06Z
Wettest 18.35 in, 30 mi ESE of Nuevitas, Cuba · to Wed 12Z
Wettest 18.35 in, 30 mi ESE of Nuevitas, Cuba · to Wed 18Z
Wettest 18.35 in, 30 mi ESE of Nuevitas, Cuba · to Thu 00Z
Wettest 18.35 in, 30 mi ESE of Nuevitas, Cuba · to Thu 06Z
Wettest 18.78 in, 45 mi N of Bella Bella, British Columbia · to Thu 12Z
Wettest 19.86 in, 40 mi NNE of Bella Bella, British Columbia · to Thu 18Z
Wettest 20.15 in, 40 mi NNE of Bella Bella, British Columbia · to Fri 00Z
Wettest 20.25 in, 40 mi NNE of Bella Bella, British Columbia · to Fri 06Z
Wettest 20.25 in, 40 mi NNE of Bella Bella, British Columbia · to Fri 12Z
Wettest 20.25 in, 40 mi NNE of Bella Bella, British Columbia · to Fri 18Z
Wettest 20.25 in, 40 mi NNE of Bella Bella, British Columbia · to Sat 00Z
Wettest 20.25 in, 40 mi NNE of Bella Bella, British Columbia · to Sat 06Z
Wettest 20.25 in, 40 mi NNE of Bella Bella, British Columbia · to Sat 12Z
Wettest 20.25 in, 40 mi NNE of Bella Bella, British Columbia · to Sat 18Z
Wettest 20.25 in, 40 mi NNE of Bella Bella, British Columbia · to Sun 00Z
One GEM run, issued 00Z 24 Sep — 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.
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.