Normal body temperature for healthy babies is in the range of 96.8Â°F to 98.6Â°F, or 36Â°C to 37Â°C. If the baby's body temperature rises above 100.4Â°F to 101.3Â°F, then it is considered as indication of fever. If it falls below 96.8Â°F then the child has low temperature and needs immediate warming up.
Tornadoes usually lasts only a few minutes, but they are very intense. Their wind speeds range from 18 to 140 m/s. The damage path of a tornado is usually less than 500 meters wide and it travels at less than 16 m/s. Each year, the United States ranks number one in tornado incidence with Australia coming in second. Very often, the most devastating ones occur in Bangladesh.
F5: Incredible tornado (261-318 mph). Incredible damage. About 70 percent of tornadoes are weak and last between one and 10 minutes. About 10 percent of tornadoes are strong and last 20 minutes or more. Only two percent of tornadoes are considered violent. Violent tornadoes cause the most deaths and can last for well over an hour.