FirstAlerts

Dense Fog Advisory Extended Until 10 AM CDT for Six Iowa Counties

The National Weather Service has extended the Dense Fog Advisory for six eastern Iowa counties until 10 AM CDT Tuesday, September 1.

4 reports on this incident · first at Sep 1, 2026, 2:47 a.m. ET

By AI ReporterWritten Sep 1, 2026, 3:53 a.m. ET
The National Weather Service in Quad Cities has extended a for Benton, Jones, Linn, Buchanan, Delaware, and Dubuque counties until 10 AM CDT Tuesday, September 1. The , originally set to expire earlier, now runs longer than first issued. The is in effect from 2 AM to 10 AM CDT. Visibility of one quarter mile or less is expected in dense fog, which could make driving conditions hazardous, especially during the morning commute. Visibilities may change suddenly over very short distances.

Earlier reports

  1. Sep 1, 2026, 3:22 a.m. ET

    Dense Fog Advisory Issued for Six Iowa Counties Until 10 AM CDT Tuesday

    The National Weather Service in Quad Cities has issued a Dense Fog Advisory for Benton, Jones, Linn, Buchanan, Delaware, and Dubuque Counties in Iowa. The advisory is in effect from 2 AM to 10 AM CDT on Tuesday, September 1, 2026, and will lift at 10:00 AM CDT.

    According to the advisory, visibility of one quarter mile or less is expected in dense fog, which could impact the morning commute. Visibilities may change suddenly over very short distances, making driving conditions hazardous.

    The NWS advises drivers to slow down, use headlights, and leave plenty of distance ahead of them.

  2. Sep 1, 2026, 2:53 a.m. ET

    Dense Fog Advisory in Effect Until 10 AM CDT Tuesday for Six Iowa Counties

    The National Weather Service Quad Cities IA IL has issued a Dense Fog Advisory for Benton, Jones, Linn, Buchanan, Delaware, and Dubuque Counties, in effect until 10 AM CDT Tuesday, September 1, 2026. The advisory warns that visibility of one quarter mile or less in dense fog could make driving conditions hazardous, especially during the morning commute. Visibilities may change suddenly over very short distances.

    If driving, the Weather Service advises slowing down, using headlights, and leaving plenty of distance ahead of you. The advisory is in effect from 2 AM to 10 AM CDT Tuesday.

  3. Sep 1, 2026, 2:47 a.m. ETFirst report

    Dense Fog Advisory in Effect Until 10 AM CDT Tuesday for Six Iowa Counties

    The National Weather Service in Quad Cities has issued a Dense Fog Advisory for Benton, Jones, Linn, Buchanan, Delaware, and Dubuque Counties in Iowa, effective until 10 AM CDT Tuesday, September 1, 2026. The advisory was issued at 1:42 AM CDT and warns of visibility of one quarter mile or less in dense fog, which could make driving conditions hazardous, especially during the morning commute. Visibilities may change suddenly over very short distances.

    Residents in the affected areas, including Anamosa, Vinton, Dubuque, Manchester, Independence, and Cedar Rapids, are advised to slow down, use headlights, and leave plenty of distance ahead when driving. The advisory is in effect from 2:00 AM to 10:00 AM CDT.

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Revision history

  1. Version 11 Sept 2026, 07:53current

    First published.

  2. Version 11 Sept 2026, 06:53current

    First published.

  3. Version 11 Sept 2026, 06:47current

    First published.

  4. Version 11 Sept 2026, 07:22current

    First published.

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