Absolute PWAT
Region Northern Plains
United States
Europe
The readings under the map are for the whole map, not only the part shown.
GFS · Run 06Z 16 Oct · +0 h · Valid Fri 06Z 16 Oct
GFS · Run 06Z 16 Oct · +0 h · Valid Fri 06Z 16 Oct
Deepest column 2.78 in at 20.0N 108.75W
Deepest column 2.68 in at 20.0N 108.75W
Deepest column 2.58 in, 170 mi SSE of Cabo San Lucas, Mexico
Deepest column 2.69 in, 100 mi SSW of Cabo San Lucas, Mexico
Deepest column 2.61 in, 105 mi SW of Cabo San Lucas, Mexico
Deepest column 2.50 in, 80 mi SW of Puerto Vallarta, Mexico
Deepest column 2.50 in, 85 mi E of Nautla, Mexico
Deepest column 2.52 in, 80 mi NE of Veracruz, Mexico
Deepest column 2.49 in, 110 mi ENE of Veracruz, Mexico
Deepest column 2.47 in, 25 mi NNE of Havana, Cuba
Deepest column 2.50 in, 25 mi NNE of Havana, Cuba
Deepest column 2.57 in, 60 mi N of Pinar del Rio, Cuba
Deepest column 2.53 in, 95 mi NNW of Ciudad del Carmen, Mexico
Deepest column 2.51 in, 100 mi N of Frontera, Mexico
Deepest column 2.44 in, 100 mi N of Frontera, Mexico
Deepest column 2.44 in, 100 mi N of Frontera, Mexico
Deepest column 2.54 in, 35 mi NE of Tizimín, Mexico
Deepest column 2.52 in near Progreso, Mexico
Deepest column 2.57 in, 105 mi W of Progreso, Mexico
Deepest column 2.62 in, 185 mi N of Frontera, Mexico
Deepest column 2.67 in, 85 mi NE of Nautla, Mexico
Deepest column 2.60 in, 60 mi ENE of Tuxpam, Mexico
Deepest column 2.46 in, 55 mi ENE of Nautla, Mexico
Deepest column 2.42 in, 55 mi ESE of Nautla, Mexico
Deepest column 2.30 in, 35 mi W of Puerto Vallarta, Mexico
Deepest column 2.27 in, 70 mi SW of Puerto Vallarta, Mexico
Deepest column 2.20 in, 80 mi SW of Puerto Vallarta, Mexico
Deepest column 2.28 in near Puerto Vallarta, Mexico
Deepest column 2.43 in, 40 mi W of Compostela, Mexico
Deepest column 2.44 in, 30 mi NW of Puerto Vallarta, Mexico
Deepest column 2.40 in, 180 mi NNE of San Juan, Puerto Rico
Deepest column 2.51 in at 24.0N 66.25W
Deepest column 2.46 in at 24.25N 71.0W
Deepest column 2.50 in at 25.25N 70.5W
Deepest column 2.61 in at 27.25N 68.0W
Deepest column 2.53 in at 26.5N 65.5W
Deepest column 2.50 in, 55 mi W of Hamilton, Bermuda
Deepest column 2.49 in at 24.25N 68.25W
Deepest column 2.51 in at 24.5N 68.25W
Deepest column 2.55 in at 25.0N 68.5W
Deepest column 2.60 in at 25.75N 68.25W
Deepest column 2.45 in at 23.25N 68.0W
Deepest column 2.40 in at 26.75N 67.25W
Deepest column 2.44 in, 70 mi SW of Puerto Vallarta, Mexico
Deepest column 2.84 in, 50 mi SSW of Puerto Vallarta, Mexico
Deepest column 2.56 in, 50 mi SSW of Puerto Vallarta, Mexico
Deepest column 2.48 in, 30 mi NW of Puerto Vallarta, Mexico
Deepest column 2.51 in near Tamuín, Mexico
Deepest column 2.55 in, 115 mi NE of Tuxpam, Mexico
Deepest column 2.59 in, 115 mi ENE of Aldama, Mexico
Deepest column 2.45 in, 105 mi ESE of San Fernando, Mexico
Deepest column 2.52 in, 85 mi E of Ciudad Madero, Mexico
Deepest column 2.45 in, 85 mi E of Ciudad Madero, Mexico
Deepest column 2.47 in, 135 mi E of Ciudad Madero, Mexico
Deepest column 2.48 in, 100 mi ENE of Tuxpam, Mexico
Deepest column 2.44 in, 60 mi ENE of Tuxpam, Mexico
Deepest column 2.44 in, 30 mi ESE of Tuxpam, Mexico
Deepest column 2.34 in, 20 mi N of Nautla, Mexico
Deepest column 2.26 in, 20 mi NNW of Tuxpam, Mexico
Deepest column 2.20 in, 40 mi N of Tuxpam, Mexico
Deepest column 2.17 in near Nautla, Mexico
Deepest column 2.14 in at 27.5N 73.75W
Deepest column 2.22 in near Temple, Texas
Deepest column 2.35 in, 30 mi NNE of Port Lavaca, Texas
Deepest column 2.33 in near Tamuín, Mexico
One GFS run, issued 06Z 16 Oct — played forward 6 hours at a time, from the analysis to 384 hours out.
Methodology
PWAT — precipitable water — is how much water vapour the air overhead holds, as the depth of water it would make if it all fell at once.
Six-hourly to 384 hours. GFS forecasts out to 384 hours.
The colours are a depth scale, the same everywhere: the cream band is a depth, not a normal. The same column is deep for Salt Lake City and shallow for Miami, so this map cannot say whether the air is unusual — the Relative to normal chart ranks each place against its own record, and that is the one to read for that.
GFS files this field as PWAT and ECMWF as total column water vapour, the same quantity. 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 NOAA. 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
- NOAA: GFS, from NOAA's NOMADS server. US government data, not subject to copyright (NOAA/NWS terms of 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.