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 00Z 16 Oct · +0 h · Valid Fri 00Z 16 Oct
GFS · Run 00Z 16 Oct · +0 h · Valid Fri 00Z 16 Oct
Deepest column 2.76 in at 20.0N 108.25W
Deepest column 2.73 in at 20.0N 108.75W
Deepest column 2.66 in at 20.0N 109.25W
Deepest column 2.50 in, 150 mi S of Cabo San Lucas, Mexico
Deepest column 2.70 in, 115 mi S of Cabo San Lucas, Mexico
Deepest column 2.60 in, 70 mi SW of Puerto Vallarta, Mexico
Deepest column 2.60 in, 65 mi NNE of Veracruz, Mexico
Deepest column 2.52 in, 95 mi NE of Veracruz, Mexico
Deepest column 2.52 in, 85 mi E of Nautla, Mexico
Deepest column 2.52 in, 95 mi NE of Veracruz, Mexico
Deepest column 2.50 in, 90 mi SSE of Homestead, Florida
Deepest column 2.65 in, 135 mi N of Frontera, Mexico
Deepest column 2.50 in, 100 mi N of Frontera, Mexico
Deepest column 2.54 in, 100 mi N of Frontera, Mexico
Deepest column 2.54 in, 75 mi NNE of Caibarién, Cuba
Deepest column 2.55 in, 95 mi NNW of Ciudad del Carmen, Mexico
Deepest column 2.54 in, 90 mi WNW of Progreso, Mexico
Deepest column 2.53 in, 140 mi WNW of Progreso, Mexico
Deepest column 2.60 in, 105 mi WNW of Progreso, Mexico
Deepest column 2.65 in at 21.5N 93.75W
Deepest column 2.65 in, 35 mi E of Nautla, Mexico
Deepest column 2.45 in, 70 mi NE of Veracruz, Mexico
Deepest column 2.44 in, 70 mi NE of Veracruz, Mexico
Deepest column 2.49 in, 55 mi ESE of Nautla, Mexico
Deepest column 2.26 in, 50 mi ENE of Guantánamo, Cuba
Deepest column 2.24 in near Tamuín, Mexico
Deepest column 2.23 in at 21.75N 68.0W
Deepest column 2.28 in at 22.75N 67.5W
Deepest column 2.32 in, 30 mi N of Puerto Plata, Dominican Republic
Deepest column 2.35 in, 60 mi ENE of Grand Turk, Turks and Caicos Islands
Deepest column 2.37 in, 40 mi NW of Puerto Vallarta, Mexico
Deepest column 2.41 in, 45 mi W of Port-De-Paix, Haiti
Deepest column 2.54 in, 125 mi N of Grand Turk, Turks and Caicos Islands
Deepest column 2.53 in at 24.25N 71.25W
Deepest column 2.65 in at 24.75N 72.25W
Deepest column 2.63 in at 25.25N 71.25W
Deepest column 2.58 in at 28.75N 67.75W
Deepest column 2.57 in, 170 mi SW of Hamilton, Bermuda
Deepest column 2.58 in, 180 mi SSW of Hamilton, Bermuda
Deepest column 2.58 in, 160 mi S of Hamilton, Bermuda
Deepest column 2.54 in at 26.25N 66.5W
Deepest column 2.47 in at 28.25N 65.25W
Deepest column 2.42 in at 25.0N 66.5W
Deepest column 2.49 in at 29.5N 65.5W
Deepest column 2.41 in near Pánuco, Mexico
Deepest column 2.37 in, 25 mi NE of Tamazunchale, Mexico
Deepest column 2.42 in, 115 mi ENE of Nautla, Mexico
Deepest column 2.49 in, 75 mi ENE of Ciudad Madero, Mexico
Deepest column 2.58 in, 45 mi ENE of San Fernando, Mexico
Deepest column 2.75 in, 40 mi N of Harlingen, Texas
Deepest column 2.87 in, 55 mi ESE of Matamoros, Mexico
Deepest column 2.85 in, 175 mi E of Matamoros, Mexico
Deepest column 2.50 in, 20 mi WNW of Houma, Louisiana
Deepest column 2.37 in at 27.0N 92.0W
Deepest column 2.32 in, 25 mi ESE of Biloxi, Mississippi
Deepest column 2.35 in near Enterprise, Alabama
Deepest column 2.28 in, 45 mi SE of Tallahassee, Florida
Deepest column 2.17 in, 55 mi WSW of Lake City, Florida
Deepest column 2.16 in, 45 mi NNE of Guantánamo, Cuba
Deepest column 2.27 in, 90 mi SSE of Freeport, Texas
Deepest column 2.43 in, 45 mi S of Matamoros, Mexico
Deepest column 2.35 in, 105 mi ESE of Matamoros, Mexico
Deepest column 2.30 in, 30 mi SSE of Pensacola, Florida
Deepest column 2.44 in, 60 mi ENE of Tuxpam, Mexico
Deepest column 2.45 in, 180 mi E of Kitty Hawk, North Carolina
One GFS run, issued 00Z 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.