Upper Air

300 mb Plot learn more

300 mb Plot

The 300 millibar (mb) map plots a variety of information collected by weather balloons and represents atmospheric conditions at an altitude of approximately 9300 meters (30,000 feet). The map displays 300 mb height, divergence, and wind. For more details, visit the NWS Storm Prediction Center's Mesoscale Analysis website. This map is updated each hour.
500 mb Plot learn more

500 mb Plot

The 500 millibar (mb) map plots a variety of information collected by weather balloons and represents atmospheric conditions at an altitude of approximately 5500 meters (18,000 feet). The map displays 500 mb height, temperature, and wind. For more details, visit the NWS Storm Prediction Center's Mesoscale Analysis website. This map is updated each hour.
850 mb Plot learn more

850 mb Plot

The 850 millibar (mb) map plots a variety of information collected by weather balloons and represents atmospheric conditions at an altitude of approximately 1500 meters (5,000 feet). The map displays 850 mb height, temperature, and wind. For more details, visit the NWS Storm Prediction Center's Mesoscale Analysis website. This map is updated each hour.