Saturday, February 21, 2026

Black Ice and Dense Fog Cause Poor Visibility, Slick Roads in Connecticut

Published on Feb. 21, 2026

The National Weather Service has issued dense fog advisories for southern and northern Connecticut, warning of poor visibility and the potential for black ice on untreated surfaces due to temperatures near freezing. Drivers are advised to slow down, use headlights, and leave extra distance ahead of their vehicles. 

Why it matters

Hazardous weather conditions like dense fog and black ice can lead to dangerous driving situations and increase the risk of accidents, especially during the morning commute. The weather advisories aim to alert residents and keep them safe on the roads.

The players

The dense fog advisory covers Connecticut's four southern counties as well as parts of the mid-Atlantic and western New York. Visibility could be reduced to a quarter-mile or less until around 10 a.m. In northern Connecticut, the weather service also warned of poor visibility and the potential for icy spots, especially on elevated surfaces like bridges.