Des Moines, Iowa – RadioIowa – A developing La Nina pattern in the Pacific Ocean could impact Iowa’s winter weather, as well as the rest of the Midwest and Northern Plains. Climatologist Dennis Todey, director of the U-S-D-A’s Midwest Climate Hub in Ames, says the consensus points to “cold and snowy” for the upcoming winter, which isn’t exactly a stretch.
A La Nina pattern occurs when Pacific Ocean surface temperatures drop below long-term normals and that has an effect on climate trends in North America. Todey says the predictions include the possibility of a more active storm track for our region.
Todey says the forecast into mid-November indicates above-normal to much-above-normal temperatures for most of the Northern Plains.