Alert archive / Kansas / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 19, NWS Wichita, KS

April 9, 1990Harper County, Kansas

NWS Wichita, KS issued this severe thunderstorm warning at Apr 9, 1990, 8:00 PM CDT for Harper County, Kansas. It was in force for 60 min.

The area

The counties it named.

The facts

Issued: Apr 9, 1990, 8:00 PM CDT (01:00 UTC)
Expired: Apr 9, 1990, 9:00 PM CDT
In force: 60 min
Issued by: NWS Wichita, KS
Area: Whole counties

County Harper 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

Dodge City, (KDDC), launched 00:00Z, 1.0 hours before the alert went out and 173 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: 176 J/kg
Mixed-layer CIN: -92 J/kg
Mixed-layer LCL: 1538 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: -16 m²/s²
0-3 km storm-relative helicity: 128 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -0.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KICT 100100
SVRICT
KSC077-173-100200-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE WICHITA KS
800 PM CDT MON APR 9 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 900 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE SOUTH CENTRAL PART OF KANSAS
      NORTHERN HARPER...NORTHERN SEDGWICK

AT 757 PM RADAR INDICATED TWO DIFFERENT SEVERE THUNDERSTORMS.  ONE
STORM WAS 18 MILES NORTH-NORTHWEST OF WICHITA NORTHWEST OF ANDALE.
MOVEMENT WAS EAST AT 20 MILES AN HOUR.

ALSO...A STORM WAS 20 MILES SOUTHEAST OF PRATT MOVING INTO NORTHWEST
HARPER COUNTY NORTH OF ATTICA.

 REMEMBER...SEVERE THUNDERSTORMS CAN AND DO OCCASIONALLY DO
PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. BE ON THE
LOOKOUT.

BURKE

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, Apr 9, 4:16 PM CDT, 3 hours 44 minutes before

KSZ009-011-012-017-092200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA KS
414 PM CDT MON APR 9 1990

...TORNADO WATCH NUMBER 112 IS IN EFFECT FOR MOST OF CENTRAL AND
EAST KANSAS AND NORTH OKLAHOMA...

AT 413 PM CDT A FEW SHOWERS HAD DEVELOPED RAPIDLY IN CENTRAL KANSAS.
THEY WERE IN A LINE FOM 15 MILES WEST OF HUTCHINSON TO THE OKLAHOMA
STATE LINE 80 MILES SOUTHWEST OF WICHITA.

RYAN

Special weather statement, Apr 9, 5:02 PM CDT, 2 hours 58 minutes before

KSZ009-011-012-017-092200-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE WICHITA KS
603 PM CDT MON APR 9 1990

...TORNADO WATCH NUMBER 112 IS IN EFFECT FOR MOST OF CENTRAL AND
EAST KANSAS AND NORTH OKLAHOMA...

AT 600 PM CDT A THUNDERSTORM WAS CENTERED ABOUT 10 MILES NORTHWEST
OF HUTCHINSON...ANOTHER WAS 35 MILES WEST OF WICHITA...OR JUST SOUTH
OF KINGMAN.  OTHER SHOWERS AND THUNDERSTORMS WERE IN NORTH OKLAHOMA AND
WEST KANCSAS.

NO SEVERE WEATHER WAS INDICATED IN CENTRAL OR EAST KANSAS.

RYAN

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 9, 7:14 PM CDT	Tornado Warning	ICT	Harvey, Sedgwick	31 min
Apr 9, 7:36 PM CDT	Tornado Warning	ICT	Butler	69 min
Apr 9, 7:48 PM CDT	Severe Thunderstorm Warning	ICT	Chase	57 min
Apr 9, 8:00 PM CDT	Severe Thunderstorm Warning	ICT	Sedgwick	60 min
Apr 9, 8:16 PM CDT	Severe Thunderstorm Warning	ICT	Harvey	29 min
Apr 9, 8:20 PM CDT	Tornado Warning	ICT	Kingman	25 min
Apr 9, 8:46 PM CDT	Tornado Warning	ICT	Kingman	29 min
Apr 9, 8:50 PM CDT	Severe Thunderstorm Warning	ICT	Butler	55 min

Nearby

Severe Thunderstorm Warnings in Kansas, 1990 Every severe thunderstorm warning in 1990

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.