Alert archive / Kansas / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 5, NWS Wichita, KS

April 2, 1999Chase County, Kansas

NWS Wichita, KS issued this severe thunderstorm warning at Apr 2, 1999, 4:42 PM CST for Chase County, Kansas. It was in force for 63 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: Apr 2, 1999, 4:42 PM CST (22:42 UTC)
Expired: Apr 2, 1999, 5:45 PM CST
In force: 63 min
Issued by: NWS Wichita, KS
Area: Whole counties

County Chase County, KS

The radar

The Topeka radar (KTWX), 83 km from the middle of the area, began a volume at 22:41 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 watch it was issued in

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

Issued	Product	Office	Lasted
Apr 2, 3:45 PM CST	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Lamont, OK (KLMN), launched 12:00Z, 10.7 hours before the alert went out and 203 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: 769 J/kg
Mixed-layer CIN: -299 J/kg
Mixed-layer LCL: 1245 m above ground
0-6 km bulk shear: 72 kt
0-1 km storm-relative helicity: 761 m²/s²
0-3 km storm-relative helicity: 762 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

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 Wichita, KS wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 2, 4:00 PM CST, 42 minutes earlier.

Area forecast discussion, Apr 2, 4:00 PM CST, 42 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>

In the hours before

Special weather statement, Apr 2, 12:12 PM CST, 4 hours 30 minutes before

KSZ032-033-047>053-067>072-082-083-091>096-098>100-030600-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE WICHITA KS
1212 PM CST FRI APR 2 1999

THIS OUTLOOK PERTAINS TO THE FOLLOWING COUNTIES IN CENTRAL KANSAS:
COWLEY	    HARVEY	  MARION
MCPHERSON   SUMNER	  CHASE
BUTLER      SEDGWICK

AND IN SOUTHEAST KANSAS:
ALLEN	   ELK	        LABETTE	    NEOSHO	WOODSON
CHAUTAUQUA GREENWOOD	MONTGOMERY  WILSON

SYNOPSIS:
A SLOW MOVING COLD FRONT WILL BECOME NEARLY STATIONARY THIS
AFTERNOON ALONG AN ELDORADO TO WELLINGTON LINE.  TEMPERATURES
AHEAD OF THE FRONT WILL BE IN THE LOWER 70S.  AN UPPER LEVEL AREA
OF LOW PRESSURE IS FORECAST TO MOVE ACROSS THE REGION TONIGHT.

THERE IS A SLIGHT CHANCE THAT THUNDERSTORMS MAY DEVELOP THIS
AFTERNOON IN SOUTH CENTRAL KANSAS...GENERALLY SOUTH OF A LINE FROM
ANTHONY TO WICHITA TO ELDORADO. THE BEST CHANCE OF THUNDERSTORMS
...INCLUDING SEVERE THUNDERSTORMS...WILL OCCUR EARLY THIS EVENING
AND OVERNIGHT.

THERE IS A SLIGHT CHANCE OF SEVERE THUNDERSTORMS LATE THIS
AFTERNOON AND EVENING SOUTHEAST OF A LINE FROM HUTCHINSON TO
MARION.  THE PRIMARY THREAT WILL BE HAIL...ALTHOUGH SOME
DAMAGING WINDS ARE ALSO POSSIBLE.  THE THREAT IN SOUTHEAST KANSAS
IS NOT EXPECTED UNTIL LATER TONIGHT.

HOWERTON

Special weather statement, Apr 2, 12:12 PM CST, 4 hours 30 minutes before

KSZ032-033-047>053-067>072-082-083-091>096-098>100-030600-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE WICHITA KS
1212 PM CST FRI APR 2 1999

THIS OUTLOOK PERTAINS TO THE FOLLOWING COUNTIES IN CENTRAL KANSAS:
COWLEY	    HARVEY	  MARION
MCPHERSON   SUMNER	  CHASE
BUTLER      SEDGWICK

AND IN SOUTHEAST KANSAS:
ALLEN	   ELK	        LABETTE	    NEOSHO	WOODSON
CHAUTAUQUA GREENWOOD	MONTGOMERY  WILSON

SYNOPSIS:
A SLOW MOVING COLD FRONT WILL BECOME NEARLY STATIONARY THIS
AFTERNOON ALONG AN ELDORADO TO WELLINGTON LINE.  TEMPERATURES
AHEAD OF THE FRONT WILL BE IN THE LOWER 70S.  AN UPPER LEVEL AREA
OF LOW PRESSURE IS FORECAST TO MOVE ACROSS THE REGION TONIGHT.

THERE IS A SLIGHT CHANCE THAT THUNDERSTORMS MAY DEVELOP THIS
AFTERNOON IN SOUTH CENTRAL KANSAS...GENERALLY SOUTH OF A LINE FROM
ANTHONY TO WICHITA TO ELDORADO. THE BEST CHANCE OF THUNDERSTORMS
...INCLUDING SEVERE THUNDERSTORMS...WILL OCCUR EARLY THIS EVENING
AND OVERNIGHT.

THERE IS A SLIGHT CHANCE OF SEVERE THUNDERSTORMS LATE THIS
AFTERNOON AND EVENING SOUTHEAST OF A LINE FROM HUTCHINSON TO
MARION.  THE PRIMARY THREAT WILL BE HAIL...ALTHOUGH SOME
DAMAGING WINDS ARE ALSO POSSIBLE.  THE THREAT IN SOUTHEAST KANSAS
IS NOT EXPECTED UNTIL LATER TONIGHT.

HOWERTON

Special weather statement, Apr 2, 12:21 PM CST, 4 hours 21 minutes before

KSZ032-033-047>053-067>072-082-083-091>096-098>100-030600-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE WICHITA KS
1221 PM CST FRI APR 2 1999

THIS OUTLOOK PERTAINS TO THE FOLLOWING COUNTIES IN CENTRAL KANSAS:
COWLEY	    HARVEY	  MARION
MCPHERSON   SUMNER	  CHASE
BUTLER      SEDGWICK

AND IN SOUTHEAST KANSAS:
ALLEN	   ELK	        LABETTE	    NEOSHO	WOODSON
CHAUTAUQUA GREENWOOD	MONTGOMERY  WILSON

SYNOPSIS:
A SLOW MOVING COLD FRONT WILL BECOME NEARLY STATIONARY THIS
AFTERNOON ALONG AN ELDORADO TO WELLINGTON LINE.  TEMPERATURES
AHEAD OF THE FRONT WILL BE IN THE LOWER 70S.  AN UPPER LEVEL AREA
OF LOW PRESSURE IS FORECAST TO MOVE ACROSS THE REGION TONIGHT.

THERE IS A SLIGHT CHANCE THAT THUNDERSTORMS MAY DEVELOP THIS
AFTERNOON IN SOUTH CENTRAL KANSAS...GENERALLY SOUTH OF A LINE FROM
ANTHONY TO WICHITA TO ELDORADO. THE BEST CHANCE OF THUNDERSTORMS
...INCLUDING SEVERE THUNDERSTORMS...WILL OCCUR EARLY THIS EVENING
AND OVERNIGHT.

THERE IS A SLIGHT CHANCE OF SEVERE THUNDERSTORMS LATE THIS
AFTERNOON AND EVENING SOUTHEAST OF A LINE FROM HUTCHINSON TO
MARION.  THE PRIMARY THREAT WILL BE HAIL...ALTHOUGH SOME
DAMAGING WINDS ARE ALSO POSSIBLE.  THE THREAT IN SOUTHEAST KANSAS
IS NOT EXPECTED UNTIL LATER TONIGHT.

SPOTTER ACTIVATION MAY BE REQUIRED LATE THIS AFTERNOON AND EVENING
IN SOUTH CENTRAL KANSAS...MAINLY EAST OF I-35.  SPOTTER ACTIVATION
MAY BE REQUIRED THIS EVENING AND OVERNIGHT IN SOUTHEAST KANSAS.

HOWERTON

Special weather statement, Apr 2, 12:21 PM CST, 4 hours 21 minutes before

KSZ032-033-047>053-067>072-082-083-091>096-098>100-030600-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE WICHITA KS
1221 PM CST FRI APR 2 1999

THIS OUTLOOK PERTAINS TO THE FOLLOWING COUNTIES IN CENTRAL KANSAS:
COWLEY	    HARVEY	  MARION
MCPHERSON   SUMNER	  CHASE
BUTLER      SEDGWICK

AND IN SOUTHEAST KANSAS:
ALLEN	   ELK	        LABETTE	    NEOSHO	WOODSON
CHAUTAUQUA GREENWOOD	MONTGOMERY  WILSON

SYNOPSIS:
A SLOW MOVING COLD FRONT WILL BECOME NEARLY STATIONARY THIS
AFTERNOON ALONG AN ELDORADO TO WELLINGTON LINE.  TEMPERATURES
AHEAD OF THE FRONT WILL BE IN THE LOWER 70S.  AN UPPER LEVEL AREA
OF LOW PRESSURE IS FORECAST TO MOVE ACROSS THE REGION TONIGHT.

THERE IS A SLIGHT CHANCE THAT THUNDERSTORMS MAY DEVELOP THIS
AFTERNOON IN SOUTH CENTRAL KANSAS...GENERALLY SOUTH OF A LINE FROM
ANTHONY TO WICHITA TO ELDORADO. THE BEST CHANCE OF THUNDERSTORMS
...INCLUDING SEVERE THUNDERSTORMS...WILL OCCUR EARLY THIS EVENING
AND OVERNIGHT.

THERE IS A SLIGHT CHANCE OF SEVERE THUNDERSTORMS LATE THIS
AFTERNOON AND EVENING SOUTHEAST OF A LINE FROM HUTCHINSON TO
MARION.  THE PRIMARY THREAT WILL BE HAIL...ALTHOUGH SOME
DAMAGING WINDS ARE ALSO POSSIBLE.  THE THREAT IN SOUTHEAST KANSAS
IS NOT EXPECTED UNTIL LATER TONIGHT.

SPOTTER ACTIVATION MAY BE REQUIRED LATE THIS AFTERNOON AND EVENING
IN SOUTH CENTRAL KANSAS...MAINLY EAST OF I-35.  SPOTTER ACTIVATION
MAY BE REQUIRED THIS EVENING AND OVERNIGHT IN SOUTHEAST KANSAS.

HOWERTON

The office that day

Everything else NWS Wichita, KS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 2, 3:25 PM CST	Severe Thunderstorm Warning	ICT	Butler	65 min
Apr 2, 3:49 PM CST	Severe Thunderstorm Warning	ICT	Greenwood	41 min
Apr 2, 4:35 PM CST	Severe Thunderstorm Warning	ICT	Greenwood	55 min

Nearby

Severe Thunderstorm Warnings in Kansas, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.