Alert archive / Illinois / Beach Hazards Statements in 2026
Beach Hazards Statement 15, NWS Chicago, IL
NWS Chicago, IL issued this beach hazards statement at Sep 17, 2026, 2:39 PM CDT for Cook County, Lake County, Illinois. It took effect at Sep 18, 2026, 5:00 AM CDT. It was in force for 10 hr.
The area
The counties it named.
The facts
- Issued
- Sep 17, 2026, 2:39 PM CDT (19:39 UTC)
- In effect from
- Sep 18, 2026, 5:00 AM CDT
- Expired
- Sep 18, 2026, 3:00 PM CDT
- In force
- 10 hr
- Issued by
- NWS Chicago, IL
Counties Cook County, IL, Lake County, IL
The radar
The Chicago radar (KLOT), 64 km from the middle of the area, began a volume at 19:43 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 7.7 hours before the alert went out and 230 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 1190 J/kg
- Mixed-layer CIN
- -114 J/kg
- Mixed-layer LCL
- 1286 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 168 m²/s²
- 0-3 km storm-relative helicity
- 140 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The office that day
Everything else NWS Chicago, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 17, 6:37 AM CDT | Areal Flood Advisory | LOT | Cook, DuPage, Kendall, Will | 5 hr |
| Sep 17, 6:49 AM CDT | Areal Flood Advisory | LOT | DeKalb, LaSalle, Lee | 5 hr |
| Sep 17, 7:07 AM CDT | Flash Flood Warning | LOT | DeKalb, LaSalle, Lee | 2 hr |
| Sep 17, 10:48 AM CDT | Marine Dense Fog Advisory | LOT | 4 hr | |
| Sep 17, 2:50 PM CDT | Small Craft Advisory | LOT | 24 hr |
Nearby
Beach Hazards Statements in Illinois, 2026Every beach hazards statement in 2026
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.