This case uses the AMSU and SSM/I rainfall rate products to demonstrate the ability of POES microwave data to assess short-range rainfall potential for tropical cyclones. A technique used to produce the Tropical Rainfall Potential (TRaP) product is applied to Hurricane Georges (September 1998) and compared with numerical model quantitative precipitation forecasts (QPF), gauge, NEXRAD, and GOES satellite rainfall estimates. These comparisons highlight the important role in-situ POES microwave data plays in assisting with short-term QPF and the flash flooding potential that accompanies tropical disturbances.

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Please Note

In order to maintain consistency between the AWIPS displays and the text discussions, the following units are being used:

• Z (Zulu Time) is being used in place of UTC
• mb (millibars) is being used in place of HPa
• F (Fahrenheit) is being used in place of C (Celsius) for surface plots
• kts (knots) is being used in place of m/s for surface plots
• in (inches) is being used in place of mm for precipitable water and precipitation amounts
• WV is being used for the GOES 6.7-µm water vapor channel