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.
- The dense fog advisory is in effect until around 10 a.m. on Wednesday, February 18, 2026.
- Temperatures are expected to be at or below freezing, leading to the potential for black ice on untreated surfaces.
WHAT THEY'RE SAYING
With temperatures at or below freezing outside of the NYC metro area and away from the immediate coast moisture will freeze on the colder surfaces with the potential for black ice on untreated surfaces.”— National Weather Service (greenwichtime.com).
“With temperatures also near freezing, this could lead to slippery spots on untreated surfaces in addition to the poor visibility. Elevated surfaces such as bridges are most likely to have icy spots.”
— National Weather Service (greenwichtime.com).
What’s next
The National Weather Service will continue to monitor the weather conditions and provide updates throughout the morning.
The takeaway
Drivers in Connecticut should exercise caution and adjust their driving behaviors accordingly to navigate the hazardous weather conditions, including reduced visibility and the potential for black ice on the roads.
