Alert archive / Indiana / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 121, NWS Chicago, IL

November 10, 1998Benton County, Indiana

NWS Chicago, IL issued this severe thunderstorm warning at Nov 10, 1998, 8:14 AM EST for Benton County, Indiana. It was in force for 46 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: Nov 10, 1998, 8:14 AM EST (13:14 UTC)
Expired: Nov 10, 1998, 9:00 AM EST
In force: 46 min
Issued by: NWS Chicago, IL
Area: Whole counties

County Benton County, IN

The radar

The Chicago radar (KLOT), 129 km from the middle of the area, began a volume at 13:15 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

Davenport, (KDVN), launched 12:00Z, 1.2 hours before the alert went out and 290 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1345 m above ground
0-6 km bulk shear: 91 kt
0-1 km storm-relative helicity: 183 m²/s²
0-3 km storm-relative helicity: 171 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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, Nov 10, 6:08 AM EST, 2 hours 6 minutes before

ILZ003>006-008-010>014-019>023-032>033-039-INZ001>002-010>011-019-
111200-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO IL
600 AM CST/730AM EST TUE NOV 10 1998

FOR NORTH CENTRAL AND NORTHEAST ILLINOIS AND NORTHWEST INDIANA

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER UNTIL MID MORNING.
ALSO...A HIGH WIND WARNING IS IN EFFCT TODAY.

A DEEPENING STORM OVER NORTHWEST IOWA IS RESPONSIBLE FOR THE THREAT
OF SEVERE THUNDERSTORMS THIS MORNING.  A MORE SERIOUS THREAT LOOMS
DURING THE MIDDAY AND AFTERNOON AS WINDS SHIFT TO SOUTHWEST
AND INCREASE.  STEADY WINDS OF 30 TO 40 MPH WITH LOCAL GUSTS IN
EXCESS OF 60 MPH LIKELY.  SOME DAMAGE CAN BE EXPECTED WHERE THE
STRONGER GUSTS OCCUR.

WINDS ARE EXPECTED TO SUBSIDE SLOWLY TONIGHT.
KML

Special weather statement, Nov 10, 8:10 AM EST, 4 minutes before

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Special weather statement, Nov 10, 8:10 AM EST, 4 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.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 10, 6:27 AM EST	Severe Thunderstorm Warning	LOT	Ogle, Winnebago	48 min
Nov 10, 6:27 AM EST	Severe Thunderstorm Warning	LOT	LaSalle, Lee	48 min
Nov 10, 7:00 AM EST	Severe Thunderstorm Warning	LOT	Boone, DeKalb, Kane, McHenry	45 min
Nov 10, 7:00 AM EST	Severe Thunderstorm Warning	LOT	Grundy, Kendall, LaSalle, Livingston	45 min
Nov 10, 7:00 AM EST	Severe Thunderstorm Warning	LOT	Ford	45 min
Nov 10, 7:19 AM EST	Severe Thunderstorm Warning	LOT	Cook, DuPage, Will	56 min
Nov 10, 7:19 AM EST	Severe Thunderstorm Warning	LOT	Iroquois, Kankakee	56 min
Nov 10, 8:14 AM EST	Severe Thunderstorm Warning	LOT	Jasper, Lake, Newton, Porter	46 min

Nearby

Severe Thunderstorm Warnings in Indiana, 1998 Every severe thunderstorm warning in 1998

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.