Rock Severe Watches & Warnings NOAA Weather Radio

Watches & Warnings

Dense Fog Advisory
Issued: 3:13 AM CST Dec. 17, 2017 – National Weather Service

... Dense fog advisory in effect until noon CST today...

The National Weather Service in Sioux Falls has issued a dense
fog advisory, which is in effect until noon CST today.

* Visibility... will be reduced to a quarter mile or less across
some locations.

* Impacts... in addition to the dense fog reducing visibilities,
fog forming on relatively cold surfaces can make roads slippery.
Use low beam headlights when traveling this morning.

Precautionary/preparedness actions...

A dense fog advisory means visibilities will frequently be
reduced to less than one quarter mile. If driving... slow down...
use your headlights... and leave plenty of distance ahead of you.

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