Alert archive / Illinois / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 43, NWS Lincoln, IL

May 26, 2022Cass County, Mason County, Menard County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at May 26, 2022, 10:43 AM CDT for Cass County, Mason County, Menard County, Illinois. It was in force for 47 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 26, 2022, 10:43 AM CDT (15:43 UTC)
Expired: May 26, 2022, 11:30 AM CDT
In force: 47 min
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Tornado: Possible
Hail: 1.0 in
Wind: 60.0 mph

Counties Cass County, IL, Mason County, IL, Menard County, IL

The radar

The Lincoln radar (KILX), 56 km from the middle of the area, began a volume at 15:46 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, 3.7 hours before the alert went out and 118 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: 555 J/kg
Mixed-layer CIN: -15 J/kg
Mixed-layer LCL: 668 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 45 m²/s²
0-3 km storm-relative helicity: 104 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.7

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Lincoln, IL wrote its last area forecast discussion before this severe thunderstorm warning went out at May 26, 9:42 AM CDT, 1 hour 1 minute earlier.

Area forecast discussion, May 26, 9:42 AM CDT, 1 hour 1 minute before

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Hazardous weather outlook, May 26, 5:01 AM CDT, 5 hours 42 minutes before

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<body>
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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <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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        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 Lincoln, IL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 25, 7:58 PM CDT	Special Weather Statement	ILX	Logan	32 min
May 25, 8:22 PM CDT	Severe Thunderstorm Warning	ILX	Logan	38 min
May 26, 1:52 PM CDT	Flash Flood Warning	ILX	Fulton, Knox	106 min
May 26, 2:13 PM CDT	Special Weather Statement	ILX	Clark	32 min
May 26, 2:27 PM CDT	Special Weather Statement	ILX	Peoria	33 min
May 26, 2:43 PM CDT	Severe Thunderstorm Warning	ILX	Clark, Edgar	46 min
May 26, 4:31 PM CDT	Special Weather Statement	ILX	Marshall, Woodford	29 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2022 Every severe thunderstorm warning in 2022

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.