Alert archive / Illinois / Wind Advisories in 2025

Wind Advisory 11, NWS Chicago, IL

May 16, 202518 counties in Illinois; 5 counties in Indiana

NWS Chicago, IL issued this wind advisory at May 16, 2025, 10:56 AM CDT for 18 counties in Illinois; 5 counties in Indiana. It took effect at May 16, 2025, 3:00 PM CDT. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
May 16, 2025, 10:56 AM CDT (15:56 UTC)
In effect from
May 16, 2025, 3:00 PM CDT
Expired
May 16, 2025, 8:51 PM CDT
In force
6 hr
Issued by
NWS Chicago, IL
All 23 counties

Boone County, IL, 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, McHenry County, IL, Ogle County, IL, Will County, IL, Winnebago County, IL, Benton County, IN, Jasper County, IN, Lake County, IN, Newton County, IN, Porter County, IN

The radar

The Chicago radar (KLOT), 12 km from the middle of the area, began a volume at 15:57 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, 3.9 hours before the alert went out and 158 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-pSkew-T log-p diagram, Lincoln, IL at 12:00Z on 2025-05-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 12:00Z on 2025-05-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -13 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
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
2325 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
-13 m²/s²
0-3 km storm-relative helicity
-15 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 May 16, 6:24 AM CDT, 4 hours 32 minutes earlier.

Area forecast discussion, May 16, 6:24 AM CDT, 4 hours 32 minutes before
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Hazardous weather outlook, May 16, 4:23 AM CDT, 6 hours 33 minutes before
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In the hours before

Local storm report, May 16, 8:44 AM CDT, 2 hours 12 minutes before
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Local storm report, May 16, 8:47 AM CDT, 2 hours 9 minutes before
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Local storm report, May 16, 9:02 AM CDT, 1 hour 54 minutes before
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Special weather statement, May 16, 9:31 AM CDT, 1 hour 25 minutes before
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Local storm report, May 16, 10:49 AM CDT, 7 minutes before
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      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
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      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

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

IssuedProductOfficeCountiesLasted
May 15, 7:08 PM CDTSevere Thunderstorm Warning Considerable damage threatLOTFord, Livingston54 min
May 15, 7:27 PM CDTSpecial Marine WarningLOT93 min
May 15, 7:29 PM CDTSevere Thunderstorm WarningLOTCook, DuPage, Lake46 min
May 15, 7:35 PM CDTSevere Thunderstorm WarningLOTGrundy, Kankakee, Livingston, Will28 min
May 15, 7:45 PM CDTSevere Thunderstorm Warning Considerable damage threatLOTFord, Grundy, Kankakee, Livingston, Will60 min
May 15, 7:48 PM CDTSevere Thunderstorm WarningLOTCook, DuPage, Will57 min
May 15, 7:54 PM CDTSpecial Marine WarningLOT81 min
May 15, 8:01 PM CDTSevere Thunderstorm Warning Destructive damage threatLOTCook, Will29 min
May 16, 3:22 AM CDTSmall Craft AdvisoryLOT40 hr
May 16, 9:31 AM CDTRed Flag WarningLOTDeKalb, Grundy, Kane, Kendall, LaSalle, Lee9 hr
May 16, 3:52 PM CDTBlowing Dust AdvisoryLOTBoone, DeKalb, Ford, Grundy, Iroquois, Kane and 9 more5 hr
May 16, 4:48 PM CDTDust Storm WarningLOTFord, Iroquois, Livingston117 min
May 16, 5:00 PM CDTSevere Thunderstorm WarningLOTFord, Iroquois65 min
May 16, 5:32 PM CDTDust Storm WarningLOTGrundy, Kankakee, Kendall, LaSalle, Will94 min
May 16, 6:00 PM CDTDust Storm WarningLOTCook, DeKalb, Kendall, LaSalle, Will75 min
May 16, 6:22 PM CDTSpecial Marine WarningLOT113 min
May 16, 6:23 PM CDTDust Storm WarningLOTCook, DeKalb, DuPage, Kane79 min
May 16, 6:43 PM CDTSevere Thunderstorm WarningLOTBoone, Winnebago35 min
May 15, 8:13 PM CDTSevere Thunderstorm Warning Considerable damage threatLOTLake, Porter62 min

Nearby

Wind Advisories in Illinois, 2025Wind Advisories in Indiana, 2025Every wind advisory in 2025

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.