Heavy Showers & Thunderstorms Possible Across Parts of Wisconsin, Illinois, and Michigan

Lake Effect Snows Likely Across Upper New York, Vermont, and New Hampshire

10/14/24 10:27am ET

CONUS Satellite 10/14/24Photo byNWS

Good morning everyone. We have a lot going on today across the Great Lakes region and the Northeast as colder air begins to invade the area. During this process, reinforcing shots of progressively cooler to colder air in the form of waves of energy, are helping to set off not only heavy thunderstorms, but now Lake Effect snows as well.

Across areas of upstate New York, temperatures are dropping and evaporative cooling is taking place as heavy precipitation falls through the atmopshere. This is helping to change rain to a wintry mix, and in some cases, all snow. In the higher elevations of upper New York, Vermont, and New Hampshire, we could get a few inches of snow accumulation out of this over the course of the day and into the overnight hours.

Across Lake Michigan and the shorelines of Wisconsin, Illinois, Michigan, and Indiana, we will watch closely for Lake Effect rain and thunderstorms; some of which is occuring already. Over Lake Michigan and adjacent to the Wisconsin shoreline, we have heavy thunderstorms capable of strong winds and waterspouts.

For this reason, the National Weather Service has issued a Special Marine Warning for that area, and we can expect more warnings and advisories throughout the day. As these heavy showers and thunderstorms come ashore, look for locally strong winds and torrential rain.

Elsewhere and behind our final spoke of energy, we continue to have frost and freeze issues during the overnight hours in areas such as North Dakota, Iowa, Nebraska, Kansas, and now Missouri. Look for frost advisories and freeze warnings to expand in size and scope before nighttime arrives.

National Weather Service - Hazardous Weather Outlook - Livingston, IL