Alert archive / Illinois / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 188, NWS Lincoln, IL

July 31, 2024Fulton County, Schuyler County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Jul 31, 2024, 6:05 AM CDT for Fulton County, Schuyler County, Illinois. It was in force for 55 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
Jul 31, 2024, 6:05 AM CDT (11:05 UTC)
Expired
Jul 31, 2024, 7:00 AM CDT
In force
55 min
Issued by
NWS Lincoln, IL
Area
Storm-based polygon
Hail
0.88 in
Wind
60.0 mph

Counties Fulton County, IL, Schuyler County, IL

The radar

The Lincoln radar (KILX), 93 km from the middle of the area, began a volume at 11:06 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jul 31, 5:50 AM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 11.1 hours before the alert went out and 145 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, Davenport, at 00:00Z on 2024-07-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 111 joules per kilogram.LCLLFCEL10008507005003002001001 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, Davenport, at 00:00Z on 2024-07-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 158 square meters per square second.19395878Sfc1 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
111 J/kg
Mixed-layer CIN
-476 J/kg
Mixed-layer LCL
1513 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
158 m²/s²
0-3 km storm-relative helicity
187 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 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 Jul 31, 3:25 AM CDT, 2 hours 40 minutes earlier.

Area forecast discussion, Jul 31, 3:25 AM CDT, 2 hours 40 minutes before
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <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.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>
Hazardous weather outlook, Jul 31, 5:27 AM CDT, 38 minutes before
Hazardous Weather Outlook
National Weather Service Lincoln IL
527 AM CDT Wed Jul 31 2024

ILZ027>031-036>038-040>043-047>053-011100-
Knox-Stark-Peoria-Marshall-Woodford-Fulton-Tazewell-McLean-Schuyler-
Mason-Logan-De Witt-Cass-Menard-Scott-Morgan-Sangamon-Christian-
Macon-
527 AM CDT Wed Jul 31 2024

This Hazardous Weather Outlook is for central Illinois and west
central Illinois.

.DAY ONE...Today and tonight.

Thunderstorms will move across the area this morning. They are likely
to be strong to severe, with damaging winds the primary threat.
Periods of heavy rain will result in localized ponding of water.
Another cluster of storms is expected after midnight, with the best
chances closer to the I-74 corridor. These may also be severe.

Outside of the storms, heat index values around 100 degrees are
expected this afternoon.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Strong to severe storms will continue into Thursday morning, with
damaging winds and heavy rain the main threats. While additional
storms are expected on Friday, the severe weather threat should be
further east.

Heat index values of 100 to 105 degrees are expected Thursday
afternoon.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed this morning, and again after
midnight.

Expected storm motion is toward the southeast around 40 mph.

ILZ044>046-054>057-061-011100-
Piatt-Champaign-Vermilion-Moultrie-Douglas-Coles-Edgar-Shelby-
527 AM CDT Wed Jul 31 2024

This Hazardous Weather Outlook is for east central Illinois.

.DAY ONE...Today and tonight.

Thunderstorms will move across the area later this morning through
midday. They are likely to be strong to severe, with damaging winds
the primary threat. Periods of heavy rain will result in localized
ponding of water. Another cluster of storms is expected after
midnight, and these may also be severe.

Outside of the storms, heat index values around 100 degrees are
expected this afternoon.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Strong to severe storms will continue into Thursday morning, with
damaging winds and heavy rain the main threats. While additional
storms are expected on Friday, the severe weather threat should be
further east.

Heat index values of 100 to 105 degrees are expected Thursday
afternoon.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed between 9 am and 1 pm, and again
toward sunrise Thursday.

Expected storm motion is toward the southeast around 40 mph.

ILZ062-063-066>068-071>073-011100-
Cumberland-Clark-Effingham-Jasper-Crawford-Clay-Richland-Lawrence-
527 AM CDT Wed Jul 31 2024

This Hazardous Weather Outlook is for southeast Illinois.

.DAY ONE...Today and tonight.

Strong to severe thunderstorms are expected to move into the area by
early afternoon. Damaging winds and localized flooding are the
primary threats. Additional storms are possible toward sunrise
Thursday morning, and these may also be strong to severe.

Heat index values of 100 to 110 degrees are expected today.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Strong to severe storms will continue into Thursday morning, with
additional storms forming in the afternoon. While more storms are
expected on Friday, the severe weather threat should be further east.

Heat index values of 100 to 110 degrees are expected Thursday
afternoon.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed this afternoon, and again toward
sunrise Thursday.

Expected storm motion is toward the southeast around 40 mph.

Geelhart

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 31, 6:45 AM CDTSevere Thunderstorm WarningILXCass, Mason, Menard, Morgan45 min
Jul 31, 7:04 AM CDTSpecial Weather StatementILXTazewell41 min
Jul 31, 7:15 AM CDTSpecial Weather StatementILXLogan, Menard, Sangamon45 min
Jul 31, 7:29 AM CDTSevere Thunderstorm WarningILXLogan, Mason, Menard35 min
Jul 31, 8:03 AM CDTSpecial Weather StatementILXDeWitt, Piatt27 min
Jul 31, 8:17 AM CDTSpecial Weather StatementILXSchuyler28 min
Jul 31, 8:39 AM CDTSpecial Weather StatementILXChampaign36 min
Jul 31, 9:16 AM CDTSpecial Weather StatementILXVermilion29 min
Jul 31, 9:35 AM CDTSevere Thunderstorm WarningILXVermilion25 min
Jul 31, 9:42 AM CDTSpecial Weather StatementILXMorgan, Scott33 min
Jul 31, 9:44 AM CDTSevere Thunderstorm WarningILXEdgar, Vermilion28 min
Jul 31, 11:02 AM CDTSevere Thunderstorm WarningILXColes, Moultrie43 min
Jul 31, 11:47 AM CDTSevere Thunderstorm WarningILXClark, Cumberland, Edgar25 min
Jul 31, 12:38 PM CDTSpecial Weather StatementILXCrawford, Lawrence37 min
Jul 31, 12:46 PM CDTSevere Thunderstorm WarningILXCrawford, Lawrence, Richland44 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2024Every severe thunderstorm warning in 2024

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.