⚠️ Dense Fog Advisory – Iowa; Dane; Jefferson; Lafayette; Green; Rock; Walworth – Monday, July 27, 2026

Dense Fog Advisory issued July 27 at 3:07AM CDT until July 27 at 8:00AM CDT by NWS Milwaukee/Sullivan WI

Details

* WHAT…For the Dense Fog Advisory, visibility as low as 1/2 mile
in dense fog. For the Heat Advisory, heat index values up to 101
expected.

* WHERE…Dane, Green, Iowa, Lafayette, Rock, Jefferson, and
Walworth Counties.

* WHEN…For the Dense Fog Advisory, until 8 AM CDT this morning.
For the Heat Advisory, from 10 AM this morning to 9 PM CDT this
evening.

* IMPACTS…Hot temperatures and high humidity may cause heat
illnesses. Low visibility could make driving conditions hazardous.

Instructions

Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

If driving, slow down, use your headlights, and leave plenty of
distance ahead of you.

This alert was automatically posted by SkyGuard, MWSC’s severe weather alerting system. Source: National Weather Service.