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Visible Water Vapor - GOES West -8 hr

Visible Water Vapor - GOES West -8 hr
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This image is produced every three hours due to the NOAA change in removing the Super National Composites from NOAAPort. Unisys is now generating the image using the Full Disk product, which for GOES-West is produced every three hours. Unisys will go back to hourly images when GOES-S is launched. The water vapor image show an infrared band which is affected strongly by the presence of water vapor. Essentially, the image shows the altitude of the highest moist layer in the atmosphere. Bright areas reflect the location of high clouds either due to jet stream cloudiness or due to thunderstorm activity. The dark areas reflect the location of dry air at high altitudes. This is associated with dry air intrusion and sinking motion associated with high pressure systems. This image is a decent tracer of jet stream winds which will show up as bright streaks.