Alert archive / Illinois / Wind Advisories in 2026

Wind Advisory 6, NWS Chicago, IL

April 2, 202614 counties in Illinois; 5 counties in Indiana

NWS Chicago, IL issued this wind advisory at Apr 2, 2026, 1:32 AM CDT for 14 counties in Illinois; 5 counties in Indiana. It took effect at Apr 2, 2026, 10:00 AM CDT. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued: Apr 2, 2026, 1:32 AM CDT (06:32 UTC)
In effect from: Apr 2, 2026, 10:00 AM CDT
Expired: Apr 2, 2026, 7:00 PM CDT
In force: 9 hr
Issued by: NWS Chicago, IL

Counties Cook County, IL, DeKalb County, IL, DuPage County, IL, Ford County, IL, Grundy County, IL, Iroquois County, IL, Kane County, IL, Kankakee County, IL, Kendall County, IL, Lake County, IL, LaSalle County, IL, Lee County, IL, Livingston County, IL, Will County, IL, Benton County, IN, Jasper County, IN, Lake County, IN, Newton County, IN, Porter County, IN

The radar

The Chicago radar (KLOT), 25 km from the middle of the area, began a volume at 06:33 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

Davenport, (KDVN), launched 00:00Z, 6.5 hours before the alert went out and 207 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 760 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 134 m²/s²
0-3 km storm-relative helicity: 332 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this wind advisory 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 wind advisory went out at Apr 2, 1:10 AM CDT, 22 minutes earlier.

Area forecast discussion, Apr 2, 1:10 AM CDT, 22 minutes before

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Hazardous weather outlook, Apr 1, 9:56 PM CDT, 3 hours 36 minutes before

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The office that day

Everything else NWS Chicago, IL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 2, 3:39 AM CDT	Gale Warning	LOT		17 hr
Apr 2, 3:39 AM CDT	Small Craft Advisory	LOT		24 hr
Apr 2, 4:36 AM CDT	River Flood Watch	LOT	Bureau, LaSalle, Putnam	31 hr
Apr 2, 9:59 AM CDT	River Flood Watch	LOT	Cook	15 hr
Apr 2, 9:59 AM CDT	River Flood Watch	LOT	LaSalle	15 hr
Apr 2, 10:25 AM CDT	River Flood Watch	LOT	Winnebago	29 hr
Apr 2, 1:07 PM CDT	Marine Dense Fog Advisory	LOT		3 hr
Apr 2, 6:01 PM CDT	Severe Thunderstorm Warning	LOT	Lee, Ogle	44 min
Apr 2, 6:13 PM CDT	Tornado Warning	LOT	Lee, Ogle	17 min
Apr 2, 6:24 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LOT	Boone, DeKalb, Lee, Ogle, Winnebago	36 min
Apr 2, 6:42 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LOT	Lee, Ogle	18 min
Apr 2, 6:47 PM CDT	Severe Thunderstorm Warning	LOT	LaSalle	43 min

Nearby

Wind Advisories in Illinois, 2026 Wind Advisories in Indiana, 2026 Every wind advisory 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.