Alert archive / Illinois / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 187, NWS Lincoln, IL

September 29, 2019Champaign County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Sep 29, 2019, 5:24 PM CDT for Champaign County, Illinois. It was in force for 51 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
Sep 29, 2019, 5:24 PM CDT (22:24 UTC)
Expired
Sep 29, 2019, 6:15 PM CDT
In force
51 min
Issued by
NWS Lincoln, IL
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Champaign County, IL

The radar

The Lincoln radar (KILX), 97 km from the middle of the area, began a volume at 22:27 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, 10.4 hours before the alert went out and 34 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 2019-09-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 7 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, Lincoln, IL at 12:00Z on 2019-09-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 177 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
7 J/kg
Mixed-layer CIN
-196 J/kg
Mixed-layer LCL
883 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
177 m²/s²
0-3 km storm-relative helicity
241 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 Sep 29, 3:53 PM CDT, 1 hour 31 minutes earlier.

Area forecast discussion, Sep 29, 3:53 PM CDT, 1 hour 31 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, Sep 29, 11:41 AM CDT, 5 hours 43 minutes before
Hazardous Weather Outlook
National Weather Service Lincoln IL
1141 AM CDT Sun Sep 29 2019

ILZ027>031-036>038-041-301100-
Fulton-Knox-Marshall-Mason-McLean-Peoria-Stark-Tazewell-Woodford-
1141 AM CDT Sun Sep 29 2019

...FLASH FLOOD WATCH IN EFFECT UNTIL 10 PM CDT THIS EVENING...

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

.DAY ONE...THIS AFTERNOON AND TONIGHT...

Showers and thunderstorms can be expected this afternoon into
early this evening. A few of the storms could produce some hail
and strong winds. Heavy rainfall and flash flooding will also be a
concern, in light of the excessive rain that fell Friday and
Friday night.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY...

Additional thunderstorms are possible Tuesday night through
Wednesday night.

River levels will continue to rise on the Spoon River, with
flooding at London Mills on Monday. Flooding will also develop
along the Illinois River by Monday near Henry, with rises
continuing downstream during the week.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated through tonight. However,
rainfall and flooding reports would be greatly appreciated.

ILZ040-042-047>052-301100-
Cass-Christian-Logan-Menard-Morgan-Sangamon-Schuyler-Scott-
1141 AM CDT Sun Sep 29 2019

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

.DAY ONE...THIS AFTERNOON AND TONIGHT...

Showers and thunderstorms can be expected this afternoon into
early this evening. A few of the storms could produce some hail
and strong winds. Periods of heavy rainfall and localized flash
flooding will also be a concern.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY...

Additional thunderstorms are possible Wednesday and Wednesday
night.

Minor flooding will develop along the Illinois River at Beardstown
by mid week. Moderate flood stage is likely toward mid to late
week.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated through tonight. However,
rainfall and flooding reports would be greatly appreciated.

ILZ043>046-053>057-061-301100-
Champaign-Coles-De Witt-Douglas-Edgar-Macon-Moultrie-Piatt-Shelby-
Vermilion-
1141 AM CDT Sun Sep 29 2019

This Hazardous Weather Outlook is for portions of central
Illinois and east central Illinois.

.DAY ONE...THIS AFTERNOON AND TONIGHT...

Showers and thunderstorms can be expected this afternoon into
early this evening. A few of the storms could produce some hail
and strong winds.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY...

Additional thunderstorms are possible Wednesday and Wednesday
night.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated through tonight.

ILZ062-063-066>068-071>073-301100-
Clark-Clay-Crawford-Cumberland-Effingham-Jasper-Lawrence-Richland-
1141 AM CDT Sun Sep 29 2019

This Hazardous Weather Outlook is for portions of east central
Illinois and southeast Illinois.

.DAY ONE...THIS AFTERNOON AND TONIGHT...

No hazardous weather is anticipated through tonight.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY...

Unseasonably warm weather is expected early in the new week, with
heat index values in the mid to upper 90s Monday and Tuesday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated through tonight.

Miller

In the hours before

Local storm report, Sep 29, 3:43 PM CDT, 1 hour 41 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
343 PM CDT SUN SEP 29 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0305 PM     HAIL             SMITHFIELD              40.47N 90.29W
09/29/2019  E1.75 INCH       FULTON             IL   PUBLIC

            TIME ESTIMATED BY RADAR.

&&

SBAKER
Local storm report, Sep 29, 3:45 PM CDT, 1 hour 39 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
345 PM CDT SUN SEP 29 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0340 PM     TSTM WND DMG     1 N LEWISTOWN           40.41N 90.16W
09/29/2019                   FULTON             IL   LAW ENFORCEMENT

            NUMEROUS TREES REPORTED DOWN ON IL-97. RELAYED BY EMA.

&&

SBAKER
Local storm report, Sep 29, 3:52 PM CDT, 1 hour 32 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>
Local storm report, Sep 29, 4:05 PM CDT, 1 hour 19 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>
Local storm report, Sep 29, 4:19 PM CDT, 1 hour 5 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>
Local storm report, Sep 29, 4:36 PM CDT, 48 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
Sep 29, 10:58 AM CDTFlash Flood WatchILXFulton, Knox, McLean, Marshall, Mason, Peoria and 3 more9 hr
Sep 29, 10:59 AM CDTRiver Flood WarningILXBrown, Cass, Morgan, Schuyler21 days
Sep 29, 2:39 PM CDTSpecial Weather StatementILXFulton51 min
Sep 29, 2:46 PM CDTTornado WarningILXFulton29 min
Sep 29, 3:17 PM CDTTornado WarningILXFulton, Mason, Tazewell28 min
Sep 29, 3:47 PM CDTTornado WarningILXLogan, Mason, Tazewell43 min
Sep 29, 4:30 PM CDTTornado Warning Tornado observedILXLogan, McLean, Tazewell45 min
Sep 29, 4:55 PM CDTSevere Thunderstorm WarningILXDeWitt, Piatt50 min
Sep 29, 5:06 PM CDTSevere Thunderstorm WarningILXDeWitt, McLean39 min
Sep 29, 5:45 PM CDTSevere Thunderstorm WarningILXChampaign, DeWitt, McLean, Piatt45 min
Sep 29, 6:24 PM CDTSevere Thunderstorm WarningILXChampaign, Vermilion44 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2019Every severe thunderstorm warning in 2019

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.