What Is Flash Flooding? Understanding Causes, Dangers, and Myths
Flash flooding is a fast, deadly surge of water caused by heavy rain or dam failure. Learn its causes, dangers, myths, and key safety tips to stay safe.
Iowa Fall Foliage: When Peak Colors Hit
Discover when Iowa’s fall colors peak by region and which trees bring the brightest reds, oranges, and golds. Plan the perfect autumn leaf-peeping trip.
When Is the Last 80 Degree Day in Iowa?
As the days get shorter in the fall, our temperatures start to get cooler. When does the last 80 degree day typically occur?
Elevated vs. Surface-Based Thunderstorms: Why It Matters in Severe Weather Forecasting
Learn the difference between surface-based storms and elevated storms, including tornado and hail risks, with real-world examples.
Tornado Watch vs. Tornado Warning: What’s the Difference?
Learn the difference between tornado and severe thunderstorm watches and warnings. Know when to prepare and when to take shelter during severe weather.
Freeze Warnings vs. Frost Advisories
Learn the difference between Frost Advisories and Freeze Warnings in Iowa, when they’re issued, and why criteria vary by state and county.
Sun Halos: What They Are, How They Form, and What They Mean
Discover how a sun halo, or rainbow around the sun, forms, what it means for the weather, if it’s dangerous, and other stunning ice crystal phenomena.
When is the First Snowfall in Iowa? Average Dates by City
Discover the average first snowfall dates by Iowa city, from Mason City to Ottumwa. Learn when winter usually begins and how much snow Iowa receives.
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.
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.