Alert archive / Indiana / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 32, NWS Indianapolis, IN

May 17, 1999Brown County, Monroe County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at May 17, 1999, 5:10 PM EST for Brown County, Monroe County, Indiana. It was in force for 35 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: May 17, 1999, 5:10 PM EST (22:10 UTC)
Expired: May 17, 1999, 5:45 PM EST
In force: 35 min
Issued by: NWS Indianapolis, IN
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Brown County, IN, Monroe County, IN

The radar

The Indianapolis radar (KIND), 59 km from the middle of the area, began a volume at 22:12 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.

What was reported inside it

Time	Report	Where	Remark
May 17, 5:10 PM EST	Hail 0.75	Unionville, IN

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

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

Issued	Product	Office	Lasted
May 17, 4:30 PM EST	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 10.2 hours before the alert went out and 219 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: 8 J/kg
Mixed-layer CIN: -466 J/kg
Mixed-layer LCL: 1464 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: -19 m²/s²
0-3 km storm-relative helicity: 100 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

Local storm report, May 17, 4:42 PM EST, 28 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
442 PM EST MON MAY 17 1999

TIME(EST)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0423 PM    3 SE MONROVIA             IN    .75 INCH HAIL
05/17/99   MORGAN                          SPOTTER REPORT

Local storm report, May 17, 4:42 PM EST, 28 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
442 PM EST MON MAY 17 1999

TIME(EST)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0423 PM    3 SE MONROVIA             IN    .75 INCH HAIL
05/17/99   MORGAN                          SPOTTER REPORT

Local storm report, May 17, 4:57 PM EST, 13 minutes before

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Local storm report, May 17, 4:57 PM EST, 13 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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Local storm report, May 17, 5:02 PM EST, 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
502 PM EST MON MAY 17 1999

TIME(EST)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0440 PM    INDIANAPOLIS              IN    .88 INCH HAIL
05/17/99   MARION                          EMERSON AND MINNESOTA
                                           AV...REPORTED BY
                                           AMATEUR RADIO OPERATOR

Local storm report, May 17, 5:02 PM EST, 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
502 PM EST MON MAY 17 1999

TIME(EST)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0440 PM    INDIANAPOLIS              IN    .88 INCH HAIL
05/17/99   MARION                          EMERSON AND MINNESOTA
                                           AV...REPORTED BY
                                           AMATEUR RADIO OPERATOR

The office that day

Everything else NWS Indianapolis, IN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 17, 11:57 AM EST	Severe Thunderstorm Warning	IND	Fountain, Montgomery	33 min
May 17, 1:28 PM EST	Severe Thunderstorm Warning	IND	Clinton, Tipton	32 min
May 17, 3:51 PM EST	Severe Thunderstorm Warning	IND	Marion	39 min
May 17, 4:03 PM EST	Severe Thunderstorm Warning	IND	Monroe, Owen	27 min
May 17, 4:06 PM EST	Severe Thunderstorm Warning	IND	Hamilton	24 min
May 17, 4:18 PM EST	Severe Thunderstorm Warning	IND	Morgan	32 min
May 17, 4:29 PM EST	Severe Thunderstorm Warning	IND	Monroe	16 min
May 17, 4:36 PM EST	Severe Thunderstorm Warning	IND	Lawrence	24 min
May 17, 4:44 PM EST	Severe Thunderstorm Warning	IND	Madison	31 min
May 17, 4:49 PM EST	Severe Thunderstorm Warning	IND	Hendricks, Marion	26 min
May 17, 4:52 PM EST	Severe Thunderstorm Warning	IND	Morgan	23 min
May 17, 4:56 PM EST	Severe Thunderstorm Warning	IND	Hamilton, Hancock	34 min
May 17, 5:14 PM EST	Severe Thunderstorm Warning	IND	Hamilton, Marion	31 min
May 17, 5:14 PM EST	Severe Thunderstorm Warning	IND	Johnson, Morgan	31 min
May 17, 5:26 PM EST	Severe Thunderstorm Warning	IND	Sullivan, Vigo	34 min
May 17, 5:26 PM EST	Severe Thunderstorm Warning	IND	Daviess, Greene, Knox	34 min
May 17, 5:41 PM EST	Severe Thunderstorm Warning	IND	Lawrence, Monroe	34 min
May 17, 5:41 PM EST	Severe Thunderstorm Warning	IND	Brown	34 min
May 17, 5:44 PM EST	Severe Thunderstorm Warning	IND	Hancock	31 min
May 17, 5:59 PM EST	Severe Thunderstorm Warning	IND	Daviess, Greene, Martin	46 min
May 17, 5:59 PM EST	Severe Thunderstorm Warning	IND	Knox, Sullivan	46 min
May 17, 5:59 PM EST	Severe Thunderstorm Warning	IND	Vigo	46 min
May 17, 6:12 PM EST	Severe Thunderstorm Warning	IND	Clay	48 min
May 17, 6:19 PM EST	Severe Thunderstorm Warning	IND	Brown	41 min
May 17, 6:23 PM EST	Severe Thunderstorm Warning	IND	Owen	37 min
May 17, 6:30 PM EST	Severe Thunderstorm Warning	IND	Lawrence, Monroe	30 min
May 17, 6:40 PM EST	Severe Thunderstorm Warning	IND	Morgan, Putnam	50 min
May 17, 6:51 PM EST	Severe Thunderstorm Warning	IND	Bartholomew, Brown, Jackson	39 min

Nearby

Severe Thunderstorm Warnings in Indiana, 1999 Every severe thunderstorm warning in 1999

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.