Upper Air Analysis

• Dewpoint depressions < 10 degrees Celsius suggest sufficient moisture for precipitation

• Short-waves indicate areas of upward motion

• Ridges are associated with fair weather and warmer temperatures
• Troughs are associated with stormy weather and cooler temperatures
• Vorticity may be used to determine regions of upward (+) or downward (-) motion

• Jet stream is used to identify areas of convergence and divergence at the surface

Upper Air Links

• 850 mb Analysis
• 700 mb Analysis
• 500 mb Analysis
• 300 mb Analysis