What's Happening?

A veteran storm chaser has documented various tornado shapes and sizes during the storm chase season in the Corn Belt. In March, DVD-size hail was observed near Buckingham, Illinois, surpassing the previous state record. Early April saw tornadoes southeast of Iowa City, with one being only a few feet wide. Tornadoes vary significantly, from mile-wide wedges to narrow ropes. Wedge tornadoes, wider than they are tall, can reach over 30,000 feet high. Multi-vortex tornadoes contain smaller whirlwinds, causing irregular damage patterns. Drill bit tornadoes, with a single cohesive vortex, are common in summer. Invisible tornadoes occur when dust or moisture isn't present to make them visible. Rope tornadoes appear at the end of their lifecycle, while rare 'wrong-way' tornadoes spin clockwise due to local atmospheric conditions.

Why It's Important?

Tornadoes pose significant risks to affected areas, with potential for severe damage and high winds. Wedge tornadoes can cause widespread destruction, as seen north of Harlan, Iowa, where debris was flung by 80-to-90-mph winds. Multi-vortex tornadoes can lead to unpredictable damage, demolishing one house while sparing another. Drill bit tornadoes, though narrow, can harbor winds exceeding 136 mph, posing a concentrated threat. Invisible tornadoes are particularly dangerous as they can strike without visual warning. Rope tornadoes, while less intense, can still cause damage during their brief intensification phase. Residents in tornado-prone areas should remain vigilant during storm seasons.

What's Next?

The storm chase season is underway, with tornado activity expected to continue in the Corn Belt. Tornadoes can occur at any time, but are more common during spring and summer months. Wedge tornadoes are likely in humid environments, while drill bit tornadoes are prevalent in summer. Multi-vortex tornadoes can form in powerful suction environments. The presence of invisible tornadoes highlights the need for constant monitoring. Rope tornadoes may appear during the end of a tornado's lifecycle. Residents should stay informed through local weather updates and advisories.

Beyond the Headlines

Residents in tornado-prone areas should have a safety plan in place, including identifying a safe shelter location. Stay informed through local weather alerts and advisories. Avoid unnecessary travel during tornado warnings and seek shelter immediately if a tornado is spotted. Keep emergency supplies, such as water, food, and a flashlight, readily available.

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