Alert archive / Missouri / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 98, NWS Paducah, KY

May 21, 1998Perry County, Missouri

NWS Paducah, KY issued this severe thunderstorm warning at May 21, 1998, 3:01 PM CDT for Perry County, Missouri. It was in force for 44 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 21, 1998, 3:01 PM CDT (20:01 UTC)
Expired
May 21, 1998, 3:45 PM CDT
In force
44 min
Issued by
NWS Paducah, KY
Area
Whole counties

County Perry County, MO

What was reported inside it

TimeReportWhereRemark
May 21, 3:04 PM CDTThunderstorm Wind 52Perryville, MOTrees were down around Perryville.

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.

IssuedProductOfficeLasted
May 21, 11:30 AM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 8.0 hours before the alert went out and 292 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 1998-05-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 1998-05-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 31 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1212 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
31 m²/s²
0-3 km storm-relative helicity
132 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.

NWS Paducah, KY wrote its last area forecast discussion before this severe thunderstorm warning went out at May 21, 1:15 PM CDT, 1 hour 46 minutes earlier.

Area forecast discussion, May 21, 1:15 PM CDT, 1 hour 46 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PADUCAH KY
115 PM CDT THU MAY 21 1998

PROBLEM/IRRITANT OF THE DAY IS PLACEMENT OF THUNDERSTORMS THROUGH
EVENING HOURS AND RESULATANT EFFECT ON EVERYTHING ELSE.

CURRENT COMPLEX MOVING PAST KSTL HEADING SOUTHEAST AROUND 40 MPH AND
BUILDING SOUTHWARD. BASED ON ADAP LIFTED INDICIES AND AMOUNT OF
INSOLATION SOUTH OF FRONT...THIS COMPLEX SHOULD BUILD INTO SOUTH
CENTRAL MISSOURI.  IR SAT LOOP SEEMS TO INDICATE THIS MAY BE
OCCURRING.  STORMS SHOULD BE IMPACTING S IL/SEMO AFTER 3 PM AND
SHOULD REACH TO NEAR KPAH BY 430-530 PM. BASE DON AMOUNT OF
INSTABILITY AND TIMING OF SYSTEM STORMS COULD TAKE AWHILE TO
DECREASE ACROSS W KY. COULD END FAIRLY EARLY ACROSS S IL AND SEMO.
WILL SUGGEST LIKELY OR BETTER POPS BASED ON LAST MINUTE RADAR
CHECKS PRIOR TO PRESS TIME.

SOME DIFFERENCES IN GUIDANCE TEMPS THRU PERIOD WITH FWC THE WARM SET
AS USUAL.  WILL SUGGEST A BLEND.

SDB

In the hours before

Special weather statement, May 21, 11:21 AM CDT, 3 hours 40 minutes before
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Special weather statement, May 21, 11:21 AM CDT, 3 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.
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The office that day

Everything else NWS Paducah, KY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 21, 4:17 PM CDTSevere Thunderstorm WarningPAHBallard, McCracken48 min
May 21, 4:17 PM CDTSevere Thunderstorm WarningPAHLivingston48 min
May 21, 4:24 PM CDTSevere Thunderstorm WarningPAHGraves, Marshall36 min
May 21, 4:24 PM CDTSevere Thunderstorm WarningPAHCarlisle36 min
May 21, 4:37 PM CDTSevere Thunderstorm WarningPAHCaldwell, Crittenden, Lyon, Webster33 min
May 21, 4:37 PM CDTSevere Thunderstorm WarningPAHUnion33 min
May 21, 4:53 PM CDTSevere Thunderstorm WarningPAHHopkins37 min
May 21, 5:09 PM CDTSevere Thunderstorm WarningPAHChristian, Muhlenberg, Trigg51 min
May 21, 5:15 PM CDTSevere Thunderstorm WarningPAHFulton, Hickman45 min
May 21, 5:15 PM CDTSevere Thunderstorm WarningPAHCalloway, Graves45 min
May 21, 5:48 PM CDTSevere Thunderstorm WarningPAHTodd27 min
May 20, 9:26 PM CDTSevere Thunderstorm WarningPAHWhite49 min
May 21, 2:22 PM CDTSevere Thunderstorm WarningPAHPerry53 min
May 21, 2:44 PM CDTSevere Thunderstorm WarningPAHJefferson46 min
May 21, 2:59 PM CDTSevere Thunderstorm WarningPAHFranklin46 min
May 21, 3:18 PM CDTSevere Thunderstorm WarningPAHJackson, Union, Williamson42 min
May 21, 3:39 PM CDTSevere Thunderstorm WarningPAHJohnson, Pope, Saline36 min
May 21, 3:55 PM CDTSevere Thunderstorm WarningPAHMassac, Pulaski35 min
May 21, 4:07 PM CDTSevere Thunderstorm WarningPAHGallatin, Hardin38 min
May 21, 3:20 PM CDTSevere Thunderstorm WarningPAHCape Girardeau40 min
May 21, 4:11 PM CDTSevere Thunderstorm WarningPAHCape Girardeau, Scott49 min
May 21, 4:13 PM CDTSevere Thunderstorm WarningPAHWayne47 min
May 21, 4:40 PM CDTSevere Thunderstorm WarningPAHMississippi35 min
May 21, 4:58 PM CDTSevere Thunderstorm WarningPAHMississippi, New Madrid47 min
May 21, 5:45 PM CDTSevere Thunderstorm WarningPAHNew Madrid30 min

Nearby

Severe Thunderstorm Warnings in Missouri, 1998Every 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.