AtmostormCounty briefing

DeKalb County, IL

Severe-weather activation briefing

Generated 2026-09-20T14:09:22.600584+00:00

1 active warning

Radar over DeKalb County, IL with the warned area outlined

In the warned path — county-wide (estimate)

~17,000 residents, plus 3 nursing homes, 1 dialysis center, 1 hospital and 14 schools

Active warnings (1)

1. Flood Advisoryuntil 2026-09-20T16:30:00+00:00

Flood Advisory issued September 20 at 7:32AM CDT until September 20 at 11:30AM CDT by NWS Chicago IL

In path: ~17,000 residents, 3 nursing homes, 1 dialysis center, 1 hospital and 14 schools.

Storm details · Full facility list (per-warning briefing)

County exposure (baseline)

DeKalb County, IL has an estimated 100,420 residents, including 7 nursing homes, 4 dialysis centers, 1 hospital and 41 schools. This is the denominator behind “in the warned path”.