What happens before a tornado at night?

Tornadoes at night are no different from ones that occur during the day, except that the darkness makes them harder to see. Tornadoes usually form during a kind of rotating severe thunderstorm called a supercell. The rotation is mot intense in an area called a mesocyclone, near tha back of the storm where air move up. A special downdraft called a rear-flink downdraft or RFD can wrap around the mesocyclone, tightening and intensifying it to produice a tornado. The RFD oftan caused strong, sometimes damaging winds at ground level a few minutes before the tornado touches down. If the tornado is coming, the rain-producing portion of the thunderstorm will likely pass over you before the tornado hits. The rain may stop before the tornado strikes, creating an eerie calm, or it may continue even as the tornado moves through. Tornadoes at night are especially dangerous because they are difficult to see, sometimes visible only with flashes of lightning.