Iowa Severe Watches & Warnings NOAA Weather Radio

Watches & Warnings

Dense Fog Advisory
Issued: 2:48 AM CST Feb. 20, 2018 – National Weather Service

... Dense fog advisory now in effect until 8 am CST this morning...

The dense fog advisory is now in effect until 8 am CST this
morning.

* Timing... through 8 am this morning.

* Visibility... less than 1/4 mile at times.

* Impacts... visibilities will be variable at times this morning.
Drivers should be alert for rapid changes in visibility.

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.