Alert archive / Kansas / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 42, NWS Kansas City, MO

June 12, 1987Wyandotte County, Kansas

NWS Kansas City, MO issued this severe thunderstorm warning at Jun 12, 1987, 8:02 PM CDT for Wyandotte County, Kansas. It was in force for 28 min.

The area

The counties it named.

The facts

Issued: Jun 12, 1987, 8:02 PM CDT (01:02 UTC)
Expired: Jun 12, 1987, 8:30 PM CDT
In force: 28 min
Issued by: NWS Kansas City, MO
Area: Whole counties

County Wyandotte County, KS

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 1.0 hours before the alert went out and 77 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: 2123 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 1855 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 26 m²/s²
0-3 km storm-relative helicity: 40 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.0

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, Jun 12, 5:32 PM CDT, 2 hours 30 minutes before

RADAR SUMMARY AND SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY INTERNATIONAL AIRPORT MO
533 PM CDT FRI JUN 12 1987

...SEVERE THUNDERSTORM WATCH UNTIL 10PM CDT FOR NORTHEAST KANSAS AND
NORTHWEST AND WEST CENTRAL MISSOURI...INCLUDING THE KANSAS CITY AND
ST JOSEPH AREAS...

AT 525 PM...AN AREA OF THUNDERSTORMS WAS OVER SOUTHEAST NEBRASKA...
SOUTHWEST IOWA...AND EXTREME NORTHWEST MISSOURI...AND SCATTERED
SHOWERS AND THUNDERSTORMS STRETCHED FROM WESTCENTRAL TO EASTCENTRAL
MISSOURI.

SEVERE THUNDERSTORMS...WITH VERY HEAVY RAIN...STRONG GUSTY WINDS AND
POSSIBLE HAIL...WERE OVER NORTHERN ATCHISON COUNTY IN EXTREME
NORTHWEST MISSOURI MOVING SOUTHEAST AT 25 MPH.

Special weather statement, Jun 12, 6:32 PM CDT, 1 hour 30 minutes before

RADAR SUMMARY AND SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY INTERNATIONAL AIRPORT MO
632 PM CDT FRI JUN 12 1987

...SEVERE THUNDERSTORM WATCH UNTIL 10PM CDT FOR NORTHEAST KANSAS AND
NORTHWEST AND WEST CENTRAL MISSOURI...INCLUDING THE KANSAS CITY AND
ST JOSEPH AREAS...

AT 625 PM...AN AREA OF THUNDERSTORMS WAS OVER SOUTHEAST NEBRASKA...
SOUTHWEST IOWA...EXTREME NORTHEAST KANSAS AND NORTHWEST MISSOURI.
ANOTHER AREA OF SHOWERS AND THUNDERSTORMS STRETCHED FROM WESTCENTRAL
TO EASTCENTRAL MISSOURI.

SEVERE THUNDERSTORMS...WITH VERY HEAVY RAIN...STRONG GUSTY WINDS AND
HAIL...WERE OVER NORTHERN ANDREW AND SOUTHERN HOLT COUNTIES IN
MISSOURI AND EXTREME NORTHERN DONIPHAN COUNTY IN KANSAS.

STORMS WERE MOVING SOUTHEAST AT 25 MPH.

Special weather statement, Jun 12, 7:33 PM CDT, 29 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 Kansas City, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 12, 7:10 PM CDT	Severe Thunderstorm Warning	EAX	Platte	65 min
Jun 12, 7:20 PM CDT	Severe Thunderstorm Warning	EAX	Clinton	55 min
Jun 12, 7:27 PM CDT	Severe Thunderstorm Warning	EAX	Clay	63 min

Nearby

Severe Thunderstorm Warnings in Kansas, 1987 Every severe thunderstorm warning in 1987

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.