Weather forecast maps by GFS
The weather maps on this page are created and owned by firenzemeteo.it. You can use them on other websites
or on publications always quoting firenzemeteo.it as a reference. It is forbidden to modify the maps.
VERSIONE ITALIANA: CLICCA QUI
To see instead the GFS ANALYSIS MAP ARCHIVE
from 2013 to today click on the link.
Notes on GFS forecast maps
The Global Forecast System (GFS) is a National Centers for Environmental Prediction (NCEP)
weather forecast model that generates data for dozens of atmospheric and land-soil variables,
including temperatures, winds, precipitation, soil moisture, and atmospheric ozone concentration.
The system couples four separate models (atmosphere, ocean model, land/soil model, and sea ice) that work
together to accurately depict weather conditions.
GFS is a global model with a base horizontal resolution of 0.25° (28 kilometers) between grid points.
The GFS is run 4 times a day, the temporal resolution covers analysis and forecasts out to 16 days.
GFS Italy: Last 4 GFS run comparison
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Click on the map to create a comparison plot of the last 4 GFS forecast runs.
For each run, temperatures (in °C) at 850 hPa (about 1300 m asl) and precipitation (in mm) are shown. Temperature values on the left axis,
while those of precipitation on the right axis. For temperatures, a red line shows the 1979-2008 climatological mean temperature (source: NOAA)
for the selected point on the grid.
NOTE: in central European countries, when solar time is in effect, the CET time is used, which is equal to UTC +1 hour, while when daylight saving time is in effect, the CEST time is used, which is equal to UTC +2 hours. Right now it is 9:32 UTC.

See the GFS analysis maps archive from 2013 to today
To see the GFS ANALYSIS MAP ARCHIVE from 2013 to today click on the link.
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