Final answer:
SHRA in a TAF report stands for rain showers, indicating that such precipitation is expected at the airport during the specified forecast period.
Step-by-step explanation:
In the TAF (Terminal Aerodrome Forecast) for KMEM, SHRA stands for rain showers. It is a coded abbreviation used in weather reports to describe a particular type of precipitation event. When SHRA is mentioned in a TAF, it indicates that rain showers are expected at the airport (KMEM in this case) during the time frame specified in the forecast.