Otherwise, use an appropriate English word, e.g., light or moderate, to describe the wind. Also, be sure to report wind damage such as small limbs down or trees down. Rate of rainfall. Again, if you have a rain gauge, you may be able to provide a numerical value. But most of us will use the terms light, moderate, deluge, etc.
Heavy rain indicates a strong downdraft within a thunderstorm.
Your description may help the forecaster pinpoint your exact location relative to what is seen on the radar screen. Presence of hail. This is a very important element to report. Hail is produced in severe storms with strong updrafts. Although not as dangerous as a tornado, a severe thunderstorm may last much longer than the average thunderstorm and cause considerable damage.