Severe Weather Center warns by means of a multilevel warning system: YELLOW is the weather watch level which is issued if the occurrence of a severe weather event is probable but there are uncertainties about duration, intensity and/or the course of this severe weather event. The warning levels ORANGE, RED and VIOLET are flash warnings. These warnings are issued if meteorologists are certain about the occurrence of a severe weather event. The warning levels are dependent on the intensity of the severe weather. They vary from area to area to account for the different topographic and climatologic conditions. You can find more information on the respective warning levels directly at the bottom of those warnings.
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