GFS Model Forecasts for South America
Current GFS SL Pressure/Precipitation Forecast
This is a set of contour plots using data from the GFS model. The output fields are consistent with other models so the models can be compared. This model gives forecast information out to 240 hours and plots are in 12 hour increments. These plots are updated every 12 hours at roughly 0600 UTC and 1800 UTC.
NOTE: The model data resolution available from the NWS is reduced after 8 forecast days. The input model resolution used to generate the images is 1 degree from analysis through 8 days. From 8.5 days through 10 days the input model resolution used to generate the images is reduced to 2.5 degrees. This difference in resolution is most noticeable when looking at the number of streamlines (arrows) and also the contours will be a little more choppy.
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