It covers wind speeds from less than 117 km/h to more than 419 km/h. The strength of tornadoes is measured by the Fujita scale. This forces the air to move upward and can cause it to rotate due to the wind on the ground. However, tornadoes may also form when two different air masses collide. Especially strong tornadoes are formed in this way. Due to the temperature differences within the cloud, strong updrafts and downdrafts develop, which results in a tornado and heavy precipitation. This is a particularly large and high thundercloud. Tornadoes can occur in conjunction with a supercell. There are two ways in which tornadoes can form. Until today, the formation of tornadoes has not been researched thoroughly. At the very latest when the tornado sirens sound, you should quickly get to safety.Īlong with hurricanes, tornadoes are among the most powerful storms in the world and can reach wind speeds of up to 450 km/h. These are also an indicator for the formation of a tornado. As soon as there are first signs of a thunderstorm, hail, strong winds, and rain, you should not take your eyes off the tornado tracker.Īlso, watch the sky and scan it for rotating clouds and cloud columns. Tornadoes can cause severe damage along their route and can occur very unexpectedly. During the tornado season, the center of gravity of the tornado areas moves from the southeast (Great Plains in Oklahoma) more and more towards the north (Illinois and Indiana).Įspecially in times of tornado season you should be very attentive and monitor the weather situation regularly. Most tornadoes occur in the month of May. The tornado season starts in March and lasts until the end of July. It was discovered that the tornado already forms near the ground before it starts to rotate. This assumption, however, has been disproved by extensive research conducted by the American Geophysical Union. This visible column of air is called a tornado.įor a long time, it was assumed that tornadoes form from the sky downward toward the ground. These air masses can rotate so strongly during their formation that an air column is formed. All recommended measures of NOAA can be found briefly and clearly here.Ī tornado is the result of rotating air masses. If you are in an area that lies within this red zone, you should take protective measures as soon as possible (e.g., seek shelter). You can recognize current sightings by a red marker on the map. The second map compiles the current tornado sightings for you. Even with low probabilities of 5% and below, you should definitely keep an eye on the weather situation. You can also recognize the probability by the coloring. * IMPACTS.Hot temperatures and high humidity may cause heat illnesses to occur.The first map shows you the probability of one or more tornadoes. * WHERE.Matagorda Islands and Brazoria Islands. HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THURSDAY. * IMPACTS.Hot temperatures and high humidity may cause heat illnesses to occur. * WHERE.Trinity, Walker, Washington, Grimes, Inland Jackson, Inland Matagorda, Inland Brazoria and Inland Galveston Counties. * WHERE.Portions of south central and southeast Texas.
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