This website works best with a newer web browser such as Chrome, Firefox, Safari or Microsoft Edge. Internet Explorer is not supported by this website.

Category: Severe convection

Severe weather over the northern Plains

A fast-moving thunderstorm complex raced across North Dakota and Minnesota in the late afternoon/evening/overnight on 20-21 June 2025, as shown above. GOES-19 band 13 (10.3 µm) imagery and derived stability (Lifted Index) show the development of notable instability with an alignment over North Dakota along the direction of convective movement.... Read More

Severe thunderstorms produce tornadoes, giant hail and damaging winds across parts of Texas and Oklahoma

1-minute Mesoscale Domain Sector GOES-19 (GOES-East) “Red” Visible (0.64 µm) images (above) showed supercell thunderstorms that produced tornadoes, hail as large as 4.25″ in diameter and wind gusts as high as 100 mph (SPC Storm Reports) across parts of Texas and Oklahoma on 08 June 2025. Frequent pulses of overshooting tops were apparent with these thunderstorms.In the corresponding 1-minute... Read More