Johnson County, IA
Severe-weather activation briefing
Generated 2026-09-20T13:03:49.287956+00:00
4 active warnings
In the warned path — county-wide (estimate)
~150,000 residents, plus 7 nursing homes, 13 mobile-home parks, 2 dialysis centers, 2 hospitals and 41 schools
Active warnings (4)
Flood Warning issued September 20 at 7:55AM CDT until September 20 at 1:45PM CDT by NWS Quad Cities IA IL
In path: ~4,900 residents, 1 nursing home and 4 schools.
Flood Warning issued September 20 at 5:43AM CDT until September 22 at 6:00PM CDT by NWS Quad Cities IA IL
In path: ~0 residents.
Flash Flood Warning issued September 20 at 5:41AM CDT until September 20 at 8:15AM CDT by NWS Quad Cities IA IL
In path: ~150,000 residents, 6 nursing homes, 13 mobile-home parks, 2 dialysis centers, 2 hospitals and 37 schools.
Flood Warning issued September 20 at 5:32AM CDT until September 22 at 5:00PM CDT by NWS Quad Cities IA IL
In path: ~0 residents.
County exposure (baseline)
Johnson County, IA has an estimated 152,854 residents, including 7 nursing homes, 13 mobile-home parks, 2 dialysis centers, 2 hospitals and 41 schools. This is the denominator behind “in the warned path”.