The Weather Globe screen saver accesses our servers several times an hour for updated weather information which is automatically uploaded. Weather is downloaded from NOAA (the National Oceanic and Atmospheric Administration) where it is mapped into polar coordinates on our servers and uploaded to the globe that you see in your screen saver. The weather current within 2 hours. Since this information is coming in from multiple satellites, occasionally satellite data is missing. In this case you will see a odd shapes of missing data on the globe. Over time this will correct itself as new satellite data arrives.