What Is a Derecho? 2025 Updated Criteria
Learn about the updated 2025 derecho definition, including new criteria like hurricane-force gusts, storm length, and what qualifies a storm as a true derecho.
Severe Storms Rip Through Northern Iowa Overnight, Leaving Behind Damage and Power Outages
Severe storms swept through Iowa overnight July 27–28, bringing up to 70 mph winds, downed trees, power outages, and damage across parts of Iowa.
What is a Microburst?
Learn what a microburst is, how it forms, and why it's dangerous. Discover key differences from tornadoes and how to stay safe during severe storms.
Active Weather Pattern to Close Out July in Iowa: Heat, Heavy Rain & Severe Storms Possible
Iowa faces an active stretch of weather from July 19–30, including heavy rainfall, severe storms, and a prolonged period of dangerous heat.
What is a Mesoscale Convective System (MCS)?
What is an MCS? Discover how these massive storm clusters form, why they last for hours, and the dangers they bring — from floods to fierce winds.
What is SKYWARN?
Learn about SKYWARN, the National Weather Service’s volunteer program that trains storm spotters to report severe weather. Discover how to join, what spotters report, and why it saves lives.
Shelf Cloud vs. Wall Cloud: What is the Difference
Often confused, there is a difference between a wall cloud and a shelf cloud. Here is how to tell them apart.
Iowa Weekend Weather Outlook
Severe storms possible in Iowa this weekend: Weak activity Friday, limited threat Saturday, but Sunday brings highest risk for hail and damaging winds.
Building the Ultimate Severe Weather Preparedness Kit
Be ready for storms with a severe weather preparedness kit. Learn what essentials to pack—food, water, radios, and more—to keep your family safe.
Severe Weather Likely Monday Across Iowa and the Midwest
Severe storms are possible Monday across Iowa with threats of large hail, damaging winds, and even tornadoes. Stay updated with the latest forecast details.