Alert archive / Illinois / High Wind Warnings in 2026
High Wind Warning 1, NWS Chicago, IL
NWS Chicago, IL issued this high wind warning at Mar 12, 2026, 11:28 AM CDT for 15 counties in Illinois; 4 counties in Indiana. It took effect at Mar 13, 2026, 1:00 AM CDT. It was in force for 15 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Mar 12, 2026, 11:28 AM CDT (16:28 UTC)
- In effect from
- Mar 13, 2026, 1:00 AM CDT
- Expired
- Mar 13, 2026, 4:00 PM CDT
- In force
- 15 hr
- Issued by
- NWS Chicago, IL
Counties Boone County, IL, Cook County, IL, DeKalb County, IL, DuPage County, IL, Grundy County, IL, Kane County, IL, Kankakee County, IL, Kendall County, IL, Lake County, IL, LaSalle County, IL, Lee County, IL, McHenry County, IL, Ogle County, IL, Will County, IL, Winnebago County, IL, Jasper County, IN, Lake County, IN, Newton County, IN, Porter County, IN
The radar
The Chicago radar (KLOT), 17 km from the middle of the area, began a volume at 16:31 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, 4.5 hours before the alert went out and 176 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1551 m above ground
- 0-6 km bulk shear
- 85 kt
- 0-1 km storm-relative helicity
- 81 m²/s²
- 0-3 km storm-relative helicity
- 122 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this high wind warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Chicago, IL wrote its last area forecast discussion before this high wind warning went out at Mar 12, 6:32 AM CDT, 4 hours 56 minutes earlier.
Area forecast discussion, Mar 12, 6:32 AM CDT, 4 hours 56 minutes before
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</html>The office that day
Everything else NWS Chicago, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 12, 1:33 AM CDT | High Wind Watch | LOT | Cook, DuPage, Kane, Kankakee, Kendall, Lake and 2 more | 10 hr |
| Mar 12, 1:33 AM CDT | Wind Advisory | LOT | Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more | 40 hr |
| Mar 12, 3:16 AM CDT | Gale Warning | LOT | 23 hr | |
| Mar 12, 9:49 AM CDT | Gale Warning | LOT | 36 hr | |
| Mar 12, 9:49 AM CDT | Storm Warning | LOT | 29 hr |
Nearby
High Wind Warnings in Illinois, 2026High Wind Warnings in Indiana, 2026Every high wind warning 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.