AtmostormCounty briefing
LaSalle County, IL
Severe-weather activation briefing
Generated 2026-09-20T14:23:22.505959+00:00
2 active warnings
In the warned path — county-wide (estimate)
~18,000 residents, plus 1 dialysis center and 11 schools
Active warnings (2)
1. Flood Warninguntil 2026-09-20T21:15:00+00:00
Flood Warning issued September 19 at 10:10PM CDT until September 22 at 9:00PM CDT by NWS Chicago IL
In path: ~18,000 residents, 1 dialysis center and 10 schools.
2. 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: ~0 residents, 1 school.
County exposure (baseline)
LaSalle County, IL has an estimated 109,658 residents, including 9 nursing homes, 2 dialysis centers and 54 schools. This is the denominator behind “in the warned path”.