Weather News

Dense fog causing ‘hazardous’ driving conditions in South Florida, forecasters say

Dense fog is stretching across South Florida Monday morning and forecasters are asking drivers to be extra careful during their morning commute.

The National Weather Service in South Florida has extended its dense fog advisory until 9 a.m. for all of Miami-Dade, Broward and Palm Beach counties. The fog has spread to coastal areas of the region, including Biscayne Bay and the nearshore Gulf waters.

Forecasters say the fog is causing “hazardous driving conditions,” with visibility reduced to a quarter of a mile or less.

The fog is so dense, the weather service’s weather balloon quickly disappeared shortly after it was released from the NWS headquarters at Florida International University’s Modesto Maidique campus on Southwest Eighth Street. Fog also blocked the view of several traffic cameras on the highways early Monday.

“If driving, slow down, use your headlights, and leave plenty of distance ahead of you,” the weather service said.

This story was originally published November 22, 2021 at 8:09 AM.

Michelle Marchante
Miami Herald
Michelle Marchante covers the pulse of healthcare in South Florida and also the City of Coral Gables. Before that, she covered the COVID-19 pandemic, hurricanes, crime, education, entertainment and other topics in South Florida for the Herald as a breaking news reporter. She recently won first place in the health reporting category in the 2025 Sunshine State Awards for her coverage of Steward Health’s bankruptcy. An investigative series about the abrupt closure of a Miami heart transplant program led Michelle and her colleagues to be recognized as finalists in two 2024 Florida Sunshine State Award categories. She also won second place in the 73rd annual Green Eyeshade Awards for her consumer-focused healthcare stories and was part of the team of reporters who won a 2022 Pulitzer Prize for the Miami Herald’s breaking news coverage of the Surfside building collapse. Michelle graduated with honors from Florida International University and was a 2025 National Press Foundation Covering Workplace Mental Health fellow and a 2020-2021 Poynter-Koch Media & Journalism fellow.  Support my work with a digital subscription
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