NOAA National Severe Storms Laboratory

09/02/2026

😱 Now that's a hail stone! And we know a thing or two about hail.

Interested in hail science? Check out NSSL's cutting edge HailCam! High-speed cameras, lights brighter than the sun, all mounted on a truck to hunt huge damaging hail!

🎥: https://inside.nssl.noaa.gov/nsslnews/2025/06/revolutionizing-hail-forecasts-one-falling-stone-at-a-time/

Illinois “weathered the storm” and reached a new hail record while doing it! ⛈️

A colossal hailstone has officially been crowned as the new state record-holder, measuring a staggering 6.603 inches in diameter—slightly larger than the average smartphone! This massive stone was found near Kankakee, IL, on March 10, 2026, setting new state records for weight (19.65 oz; ~1.23 lbs.) and volume (38.69 cubic in.).

The State Climate Extremes Committee carefully verified the evidence, confirming that the storm environment and the stone’s documentation make this a historic addition to the record books. Read the full report on how this measurement was verified: https://bit.ly/ILHailRecord

08/03/2026

📍 Check us out at the 2026 American Meteorological Society Madison Summit. Our federal and CIWRO staff are giving 9️⃣0️⃣ total presentations this week!

🌪️🚁📡🌩️ From tornadoes and lightning to drones and radar (and everything in between), we're talking about the weather tools and technologies of tomorrow!

07/17/2026

⛈️ SUDDEN DANGER: 🧐 Did you know? Flash floods are the deadliest hazard associated with severe thunderstorms. Stay weather aware, always have a plan and remember: Turn Around Don't Drown!
🚩Flash flood safety 🔗: https://www.weather.gov/mob/severe_flood

Learn more about flash flooding forecasting ➡️ 🔗: https://inside.nssl.noaa.gov/nsslnews/2026/07/sudden-danger-the-science-and-stakes-of-flash-flood-forecasting/

07/15/2026

⛈️ MRMS: A GAME CHANGER ⛈️

MRMS is a tool that combines radar, gauges, satellites and other data to create one clear view of where and how intensely rain is falling. Critical info for forecasting and warning flash floods.
🧐 Learn more about this life-saving tech ➡️ 🔗: https://inside.nssl.noaa.gov/nsslnews/2026/07/sudden-danger-the-science-and-stakes-of-flash-flood-forecasting/

07/13/2026

⛈️ SUDDEN DANGER: The Science and Stakes of Flash Flood Forecasting ⛈️

The WARN-ON-FORECAST-SYSTEM is a paradigm shift in sever weather forecasting that could push our ability to predict when and where flash floods will form from minutes to hours.

🧐 Learn more about this life-saving tech ➡️ 🔗: https://inside.nssl.noaa.gov/nsslnews/2026/07/sudden-danger-the-science-and-stakes-of-flash-flood-forecasting/

07/08/2026

⛈️ SUDDEN DANGER: The Science and Stakes of Flash Flood Forecasting ⛈️

🌊 FLASH is a cutting edge suite of tools developed at NSSL to predict when and where flash floods will form. 🧐 Learn more about this life-saving tech ➡️ 🔗: https://inside.nssl.noaa.gov/nsslnews/2026/07/sudden-danger-the-science-and-stakes-of-flash-flood-forecasting/

07/03/2026

One year ago, a devastating event in Central Texas served as a sobering reminder of the danger and the impact of flash floods. Learn how our National Oceanic and Atmospheric Administration (NOAA) scientists are building the cutting edge tools of tomorrow to keep you safe when the storm threatens.

🔗: https://research.noaa.gov/sudden-danger-the-science-and-stakes-of-flash-flood-forecasting/

07/02/2026

Did you know🧐?

🌊 On average account for more fatalities per year in the U.S. than any other hazard associated with severe thunderstorms.

Learn how our NOAA scientists are innovating the next generation of flash flood forecasting tools! ⬇️⬇️
NOAA Office of Oceanic and Atmospheric Research

07/01/2026

⛈️ Sudden Danger: The Science and Stakes of Flash Flood Forecasting ⛈️

🌊 Flash floods are the deadliest severe thunderstorm hazard in the US. At NSSL, our researchers are innovating the next generation of tools and technologies. All in pursuit of the National Oceanic and Atmospheric Administration (NOAA) mission to save lives and protect property. 💧☔ NOAA Office of Oceanic and Atmospheric Research

Go inside the science of flash flood forecasting! 🔗: https://inside.nssl.noaa.gov/nsslnews/2026/07/sudden-danger-the-science-and-stakes-of-flash-flood-forecasting/

06/24/2026

From Super Bowl to World Cup! ⚽🏆When it comes to weather at large outdoor events, safety needs extra time! ⏱️

With venues across the country, a new cutting-edge tool from NSSL is helping support U.S. National Weather Service (NWS) forecasters, emergency managers & public safety officials.

LEARN HOW 🔗 https://inside.nssl.noaa.gov/nsslnews/2026/06/weather-safety-at-the-world-cup-new-noaa-weather-tool-helping-keep-fans-safe/