Alert archive / Illinois / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 25, NWS Lincoln, IL

April 26, 1994Edgar County, Vermilion County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Apr 26, 1994, 10:25 PM CDT for Edgar County, Vermilion County, Illinois. It was in force for 30 min.

The area

The counties it named.

The facts

Issued
Apr 26, 1994, 10:25 PM CDT (03:25 UTC)
Expired
Apr 26, 1994, 10:55 PM CDT
In force
30 min
Issued by
NWS Lincoln, IL
Area
Whole counties

Counties Edgar County, IL, Vermilion County, IL

The nearest sounding before it

Dayton/James M C, OH (KDAY), launched 00:00Z, 3.4 hours before the alert went out and 302 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, Dayton/James M C, OH at 00:00Z on 1994-04-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 981 joules per kilogram.LCLEL10008507005003002001001 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, Dayton/James M C, OH at 00:00Z on 1994-04-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 70 square meters per square second.193958Sfc1 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
981 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
1633 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
70 m²/s²
0-3 km storm-relative helicity
178 m²/s²
Significant tornado parameter
0.2
Supercell composite
3.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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.

In the hours before

Special weather statement, Apr 26, 10:15 PM CDT, 10 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>

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 26, 7:01 PM CDTSevere Thunderstorm WarningILXChristian44 min
Apr 26, 7:18 PM CDTSevere Thunderstorm WarningILXMcLean, Tazewell, Woodford42 min
Apr 26, 7:21 PM CDTSevere Thunderstorm WarningILXMacon54 min
Apr 26, 7:45 PM CDTSevere Thunderstorm WarningILXChristian30 min
Apr 26, 7:52 PM CDTTornado WarningILXMacon, Shelby38 min
Apr 26, 8:28 PM CDTTornado WarningILXChristian19 min
Apr 26, 8:28 PM CDTTornado WarningILXMacon, Moultrie, Shelby47 min
Apr 26, 8:51 PM CDTSevere Thunderstorm WarningILXMacoupin, Montgomery61 min
Apr 26, 9:04 PM CDTTornado WarningILXMcLean41 min
Apr 26, 9:08 PM CDTSevere Thunderstorm WarningILXColes, Douglas, Moultrie52 min
Apr 26, 9:34 PM CDTSevere Thunderstorm WarningILXChristian, Macon, Sangamon41 min
Apr 26, 9:37 PM CDTTornado WarningILXDouglas38 min
Apr 26, 10:11 PM CDTTornado WarningILXChampaign, Piatt44 min
Apr 26, 10:11 PM CDTTornado WarningILXDeWitt44 min
Apr 26, 10:11 PM CDTTornado WarningILXMontgomery34 min

Nearby

Severe Thunderstorm Warnings in Illinois, 1994Every severe thunderstorm warning in 1994

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.