Snow in the Rockies; Showers and Thunderstorms Along the Gulf Coast; Potential Winter Storm for Northern Mid-Atlantic and Interior New England

A winter-like pattern will continue over much of the Lower 48 over the next few days, with snow stretching from the Rockies today into the Middle Mississippi Valley on Monday. Showers and thunderstorms will develop along the Gulf Coast and Southeast on Monday. As the storm moves northward late Monday into Tuesday, winter weather is possible from the Central Appalachians to Interior New England. Read More >

The Climate Prediction Center has issued a La Niña Watch for winter 2021-22. There is a potential for La Niña to emerge this fall and last through the winter, with a 66% chance of La Niña conditions during the November - January time period.

La Niña is a seasonal cooling of water temperatures in the central Pacific, coupled with changes in atmospheric winds, which can affect weather patterns far removed from the tropics. In the lower and middle Ohio Valley La Niña tends to increase our chances of wetter and warmer than normal weather. However, it is very important to remember that La Niña is just one player on the vast team of factors that combine to produce our weather. La Niña/El Niño is one of the better understood signals and can have a significant effect on weather patterns, though, so it's definitely worth watching.


December - February temperature anomalies during La Niña in western Kentucky and southwest Indiana	December - February temperature anomalies during La Niña in eastern Kentucky and southeast Indiana


December - February precipitation anomalies during La Niña in western Kentucky and southwest Indiana	December - February precipitation anomalies during La Niña in western Kentucky and southwest Indiana