NWS feedSource freshLast successful check:
Active official alertUpdated

Dense Fog Advisory for Lake; Northern Cook

Official alert fields

What you need to know

Effective
Ends or expires
Official severity
Moderate
Official urgency
Expected
Official certainty
Likely

What is happening

What: Visibility less than one mile in dense fog. Impacts: Low visibility could make driving conditions hazardous. Where: Lake IL and Northern Cook Counties. When: Until 9 AM CDT this morning.

What the bulletin says to do

No separate action instruction was included in this NWS record. Read the complete official bulletin and follow local authorities.

Full official description

Bulletin details

* WHAT...Visibility less than one mile in dense fog. * WHERE...Lake IL and Northern Cook Counties. * WHEN...Until 9 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous.

Official geometry where available

Alert boundary

Lifecycle record

Official revisions

3 captured
  1. Alert

    Dense Fog Advisory issued October 20 at 4:19AM CDT until October 20 at 9:00AM CDT by NWS Chicago IL

    Official revision
  2. Update

    Dense Fog Advisory issued October 20 at 4:19AM CDT until October 20 at 9:00AM CDT by NWS Chicago IL

    Official revision
  3. Alert

    Dense Fog Advisory issued October 20 at 3:42AM CDT until October 20 at 9:00AM CDT by NWS Chicago IL

    Official revision

Source and limitations

Publisher: Weather Alert Watch. Primary source: NWS Chicago IL. This page reorganizes official fields and does not add a forecast or expand the affected area.

CAP status
Actual
Message type
Update
Last collected
Methodology and corrections